Commit Graph

13778 Commits

Author SHA1 Message Date
Jeff Cohen 0eafbc3593 Get JIT/Interpreter working on Windows again.
llvm-svn: 27037
2006-03-24 02:53:49 +00:00
Chris Lattner a4f6805a86 legalize vbit_convert nodes whose result is a legal type.
Legalize intrinsic nodes.

llvm-svn: 27036
2006-03-24 02:26:29 +00:00
Chris Lattner d96b09a7b9 Lower target intrinsics into an INTRINSIC node
llvm-svn: 27035
2006-03-24 02:22:33 +00:00
Reid Spencer f9c3dcfdc1 Ignore the burg output files.
llvm-svn: 27033
2006-03-24 02:21:35 +00:00
Chris Lattner 6b05290922 fix some bogus assertions: noop bitconverts are legal
llvm-svn: 27032
2006-03-24 02:20:47 +00:00
Evan Cheng d27fb3e85e Handle more shuffle cases with SHUFP* instructions.
llvm-svn: 27024
2006-03-24 01:18:28 +00:00
Evan Cheng 1d2e995fc1 Lower BUILD_VECTOR to VECTOR_SHUFFLE if there are two distinct nodes (and if
the target can handle it). Issue two SCALAR_TO_VECTOR ops followed by a
VECTOR_SHUFFLE to select from the two vectors.

llvm-svn: 27023
2006-03-24 01:17:21 +00:00
Chris Lattner ebac9a4adf Identify the INTRINSIC node
llvm-svn: 27020
2006-03-24 01:04:30 +00:00
Reid Spencer 78eaa10f1a Add new generated files.
llvm-svn: 27013
2006-03-23 23:48:12 +00:00
Evan Cheng 4b5b4e373b Typo
llvm-svn: 27008
2006-03-23 23:24:51 +00:00
Jim Laskey fb39d2a7f7 Unneeded forward.
llvm-svn: 27004
2006-03-23 23:05:52 +00:00
Jim Laskey f7cfa52e7a Make sure types are allocated in the scope of their use.
llvm-svn: 27002
2006-03-23 23:02:34 +00:00
Chris Lattner cbcfe46556 add a note
llvm-svn: 27000
2006-03-23 21:28:44 +00:00
Chris Lattner d7c4e7d255 add support for splitting casts. This implements
CodeGen/Generic/vector.ll:test_cast_2.

llvm-svn: 26999
2006-03-23 21:16:34 +00:00
Evan Cheng f842ea57bb Typo
llvm-svn: 26997
2006-03-23 20:26:04 +00:00
Jim Laskey b119990289 Add some more bulletproofing to auto upgrade of llvm.dbg intrinsics.
llvm-svn: 26996
2006-03-23 20:13:25 +00:00
Chris Lattner 81137629e0 Add PPC vector bit-convert support
llvm-svn: 26995
2006-03-23 19:54:27 +00:00
Jim Laskey 3c43609f1f Add support to locate local variables in frames (early version.)
llvm-svn: 26994
2006-03-23 18:12:57 +00:00
Jim Laskey 8f64426f5c Strip changes to llvm.dbg intrinsics.
llvm-svn: 26993
2006-03-23 18:11:33 +00:00
Jim Laskey 83f99115db Can't combine anymore - we don't have a chain through llvm.dbg intrinsics.
llvm-svn: 26992
2006-03-23 18:10:42 +00:00
Jim Laskey cf0166fbeb Change interface to DwarfWriter.
llvm-svn: 26991
2006-03-23 18:09:44 +00:00
Jim Laskey 267d39d128 Modify how CBE handles #lines.
llvm-svn: 26990
2006-03-23 18:08:29 +00:00
Jim Laskey 2b74656f25 Generate local variable and scope information and equivalent dwarf forms.
llvm-svn: 26989
2006-03-23 18:07:55 +00:00
Jim Laskey a8bdac875d Handle new forms of llvm.dbg intrinsics.
llvm-svn: 26988
2006-03-23 18:06:46 +00:00
Jim Laskey 0cf8ed61cc Simplify handling of llvm.dbg intrinsic operands to one spot.
llvm-svn: 26987
2006-03-23 18:05:12 +00:00
Jim Laskey 01bd749537 Change the argument types of llvm.dbg intrinsics.
llvm-svn: 26985
2006-03-23 18:03:20 +00:00
Chris Lattner ce0206e119 Fix the encodings of these new instructions, hopefully fixing the JIT
failures from last night

llvm-svn: 26981
2006-03-23 16:13:50 +00:00
Evan Cheng 82ed4a42f9 Following icc's lead: use movdqa to load / store 128-bit integer vectors
llvm-svn: 26980
2006-03-23 07:44:07 +00:00
Chris Lattner a011ba8a76 prune #includes
llvm-svn: 26975
2006-03-23 05:43:58 +00:00
Chris Lattner 6f95ab7abb Eliminate IntrinsicLowering from TargetMachine.
Make the CBE and V9 backends create their own, since they're the only ones that use it.

llvm-svn: 26974
2006-03-23 05:43:16 +00:00
Chris Lattner 9ea1b3f9fd simplify some code
llvm-svn: 26972
2006-03-23 05:29:04 +00:00
Chris Lattner 811dd8d009 remove always-null IntrinsicLowering argument.
llvm-svn: 26971
2006-03-23 05:28:02 +00:00
Chris Lattner 0b2de9f2d4 remove the intrinsiclowering hook
llvm-svn: 26970
2006-03-23 05:22:51 +00:00
Evan Cheng 7055878170 Add v4i32 <-> v4f32 bitconvert patterns.
llvm-svn: 26969
2006-03-23 02:36:37 +00:00
Evan Cheng b9b0550dc6 Add 128-bit integer vector load and add (for testing).
llvm-svn: 26967
2006-03-23 01:57:24 +00:00
Nate Begeman fb6e02931c Add support for 8 bit immediates with 16/32 bit cmp instructions
llvm-svn: 26966
2006-03-23 01:29:48 +00:00
Chris Lattner b893d04a67 Fix a typo
llvm-svn: 26965
2006-03-22 22:20:49 +00:00
Evan Cheng 021bb7c956 Added a ValueType operand to isShuffleMaskLegal(). For now, x86 will not do
64-bit vector shuffle.

llvm-svn: 26964
2006-03-22 22:07:06 +00:00
Chris Lattner 2f4119a608 Implement simple support for vector casting. This can currently only handle
casts between legal vector types.

llvm-svn: 26961
2006-03-22 20:09:35 +00:00
Evan Cheng ed794cd27b SHUFP* are two address code.
llvm-svn: 26959
2006-03-22 20:08:18 +00:00
Evan Cheng bc04722860 Some clean up.
llvm-svn: 26957
2006-03-22 19:22:18 +00:00
Evan Cheng d4e1557941 - Supposely movlhps is faster / better than unpcklpd.
- Don't forget pshufd is only available with sse2.

llvm-svn: 26956
2006-03-22 19:16:21 +00:00
Evan Cheng 68ad48bd1a - Implement X86ISelLowering::isShuffleMaskLegal(). We currently only support
splat and PSHUFD cases.
- Clean up shuffle / splat matching code.

llvm-svn: 26954
2006-03-22 18:59:22 +00:00
Chris Lattner 7d80b4f366 silence a bogus gcc warning
llvm-svn: 26953
2006-03-22 17:27:24 +00:00
Evan Cheng 8fdbdf20cd - VECTOR_SHUFFLE of v4i32 / v4f32 with undef second vector always matches
PSHUFD. We can make permutes entries which point to the undef pointing
  anything we want.
- Change some names to appease Chris.

llvm-svn: 26951
2006-03-22 08:01:21 +00:00
Chris Lattner e24cf9dfa1 add a note
llvm-svn: 26950
2006-03-22 07:33:46 +00:00
Evan Cheng 3617caf526 Fix PSHUF* and SHUF* jit code emission problems
llvm-svn: 26949
2006-03-22 07:10:28 +00:00
Chris Lattner 2d52c1b8b9 Eliminate the dependency of ExecutionEngine on the JIT/Interpreter libraries.
Now you can build a tool with just the JIT or just the interpreter.

llvm-svn: 26946
2006-03-22 06:07:50 +00:00
Chris Lattner eccf46950c This has been implemented. Tweak it into another note
llvm-svn: 26944
2006-03-22 05:33:23 +00:00
Chris Lattner 4a66d69433 When possible, custom lower 32-bit SINT_TO_FP to this:
_foo2:
        extsw r2, r3
        std r2, -8(r1)
        lfd f0, -8(r1)
        fcfid f0, f0
        frsp f1, f0
        blr

instead of this:

_foo2:
        lis r2, ha16(LCPI2_0)
        lis r4, 17200
        xoris r3, r3, 32768
        stw r3, -4(r1)
        stw r4, -8(r1)
        lfs f0, lo16(LCPI2_0)(r2)
        lfd f1, -8(r1)
        fsub f0, f1, f0
        frsp f1, f0
        blr

This speeds up Misc/pi from 2.44s->2.09s with LLC and from 3.01->2.18s
with llcbeta (16.7% and 38.1% respectively).

llvm-svn: 26943
2006-03-22 05:30:33 +00:00
Chris Lattner 77373d1bea Add support for "ri" addressing modes where the immediate is a 14-bit field
which is shifted left two bits before use.  Instructions like STD use this
addressing mode.

llvm-svn: 26942
2006-03-22 05:26:03 +00:00
Chris Lattner f5e36c8bc0 fix a warning
llvm-svn: 26941
2006-03-22 04:18:34 +00:00
Evan Cheng d097e67544 Some splat and shuffle support.
llvm-svn: 26940
2006-03-22 02:53:00 +00:00
Evan Cheng b1d3c64d1f Add a couple more pseudo instructions.
llvm-svn: 26939
2006-03-22 02:52:03 +00:00
Chris Lattner 8fa445a89d Endianness does not affect the order of vector fields. This fixes
SingleSource/UnitTests/Vector/build.c

llvm-svn: 26936
2006-03-22 01:46:54 +00:00
Chris Lattner 4e7371758f Fix the JIT encoding of the VAForm_1 instructions, including vmaddfp
llvm-svn: 26935
2006-03-22 01:44:36 +00:00
Chris Lattner 5be4352124 Enclose some variables in a scope to avoid error with some gcc versions
llvm-svn: 26934
2006-03-22 00:12:37 +00:00
Evan Cheng baea59c61c Didn't mean to check this in. No MMX support yet.
llvm-svn: 26933
2006-03-21 23:04:23 +00:00
Evan Cheng d5e905d762 - Use movaps to store 128-bit vector integers.
- Each scalar to vector v8i16 and v16i8 is a any_extend followed by a movd.

llvm-svn: 26932
2006-03-21 23:01:21 +00:00
Chris Lattner 340a6b5c26 add expand support for extractelement
llvm-svn: 26931
2006-03-21 21:02:03 +00:00
Chris Lattner 00f4683bf6 These targets don't support EXTRACT_VECTOR_ELT, though, in time, X86 will.
llvm-svn: 26930
2006-03-21 20:51:05 +00:00
Chris Lattner 7c0cd8cafc add some trivial support for extractelement.
llvm-svn: 26928
2006-03-21 20:44:12 +00:00
Chris Lattner 3a2ae6ad3c Don't emit pseudo instructions!
llvm-svn: 26926
2006-03-21 20:19:37 +00:00
Chris Lattner 672a42d731 Add a hacky workaround for crashes due to vectors live across blocks.
Note that this code won't work for vectors that aren't legal on the
target.  Improvements coming.

llvm-svn: 26925
2006-03-21 19:20:37 +00:00
Nate Begeman 013127981a Update readme
llvm-svn: 26924
2006-03-21 18:58:20 +00:00
Chris Lattner 139eac5b71 Print absolute memory references like this:
lwz r2, 8(0)
instead of this:
       lwz r2, 8(r0)

This fixes the llc/llc-beta failures on PPC last night.

llvm-svn: 26922
2006-03-21 17:21:13 +00:00
Evan Cheng 2d819f5fa4 Combine 2 entries
llvm-svn: 26921
2006-03-21 07:18:26 +00:00
Evan Cheng aeebc96099 Add a note about x86 register coallescing
llvm-svn: 26920
2006-03-21 07:12:57 +00:00
Evan Cheng 1208d9179a - Remove scalar to vector pseudo ops. They are just wrong.
- Handle FR32 to VR128:v4f32 and FR64 to VR128:v2f64 with aliases of MOVAPS
and MOVAPD. Mark them as move instructions and *hope* they will be deleted.

llvm-svn: 26919
2006-03-21 07:09:35 +00:00
Chris Lattner bda7310ef7 With Evan's latest tblgen patch, this code is obsolete, thanks Evan!
llvm-svn: 26917
2006-03-21 06:37:40 +00:00
Chris Lattner d2132f87d7 When codegen'ing vector MUL using VFMADD, *add* the 0, don't *mul* the 0.
llvm-svn: 26913
2006-03-21 00:51:38 +00:00
Chris Lattner f194834161 minor note
llvm-svn: 26912
2006-03-21 00:47:09 +00:00
Evan Cheng e4d1416239 x86 ISD::SCALAR_TO_VECTOR support.
llvm-svn: 26911
2006-03-21 00:33:35 +00:00
Evan Cheng fb872b41c0 Junk unused vector register classes.
llvm-svn: 26910
2006-03-21 00:30:59 +00:00
Chris Lattner c8b16d00b9 Handle constant addresses more efficiently, folding the low bits into the
disp field of the load/store if possible.  This compiles
CodeGen/PowerPC/load-constant-addr.ll to:

_test:
        lis r2, 2838
        lfs f1, 26848(r2)
        blr

instead of:

_test:
        lis r2, 2838
        ori r2, r2, 26848
        lfs f1, 0(r2)
        blr

llvm-svn: 26908
2006-03-20 22:38:22 +00:00
Chris Lattner 6d74b09da7 remove dead variable
llvm-svn: 26907
2006-03-20 22:37:23 +00:00
Chris Lattner a1bc294f0c Fix a couple of bugs in permute/splat generate, thanks to Nate for actually
figuring these out! :)

llvm-svn: 26904
2006-03-20 18:26:51 +00:00
Chris Lattner eda030da04 reenable this hack, the tblgen version isn't quite ready
llvm-svn: 26902
2006-03-20 17:54:43 +00:00
Chris Lattner f96d523b8f Fix the pattern for VADDUWM, add i32 splat
llvm-svn: 26901
2006-03-20 17:51:58 +00:00
Evan Cheng 89f3cff0f5 Use tblgen'd VECTOR_SHUFFLE selection code.
llvm-svn: 26900
2006-03-20 08:14:16 +00:00
Chris Lattner a9a1313386 Add support for generating vspltw, instead of a vperm instruction with a
constant pool load.  This generates significantly nicer code for splats.

When tblgen gets bugfixed, we can remove the custom selection code.

llvm-svn: 26898
2006-03-20 06:51:10 +00:00
Chris Lattner a8fbb6dd3d Implement PPC::isSplatShuffleMask and PPC::getVSPLTImmediate.
llvm-svn: 26897
2006-03-20 06:37:44 +00:00
Chris Lattner ffc475689b fix duplicate definition errors
llvm-svn: 26896
2006-03-20 06:33:01 +00:00
Chris Lattner 80b6bd2746 Add a build_vector node
llvm-svn: 26895
2006-03-20 06:18:01 +00:00
Chris Lattner 382f356bd9 Check in some intermediate code that adds a skeleton for matching vsplt*
instructions

llvm-svn: 26894
2006-03-20 06:15:45 +00:00
Evan Cheng e6448448c2 Move a few things around.
llvm-svn: 26893
2006-03-20 06:04:52 +00:00
Chris Lattner e4e1ac37ba add vector_shuffle
llvm-svn: 26891
2006-03-20 05:40:45 +00:00
Chris Lattner 93d99f9928 fix typo
llvm-svn: 26889
2006-03-20 05:05:55 +00:00
Chris Lattner 366b2514fa add vsplat instructions, fix sched description for vperm
llvm-svn: 26888
2006-03-20 04:47:33 +00:00
Chris Lattner a8713b1ee6 Custom lower arbitrary VECTOR_SHUFFLE's to VPERM.
TODO: leave specific ones as VECTOR_SHUFFLE's and turn them into specialized
operations like vsplt*

llvm-svn: 26887
2006-03-20 01:53:53 +00:00
Chris Lattner 0a8b4eaee9 Claim to have v16i8 for perm masks
llvm-svn: 26886
2006-03-20 01:53:02 +00:00
Chris Lattner 21e68c8001 If a target supports splatting with SHUFFLE_VECTOR, lower to it from BUILD_VECTOR(x,x,x,x)
llvm-svn: 26885
2006-03-20 01:52:29 +00:00
Chris Lattner 6b20104410 TargetData doesn't know the alignment of vectors :(
llvm-svn: 26884
2006-03-20 01:51:46 +00:00
Chris Lattner e7a058de7d add the vperm instruction
llvm-svn: 26883
2006-03-20 01:00:56 +00:00
Chris Lattner 00f0589bc0 Add very basic support for VECTOR_SHUFFLE
llvm-svn: 26880
2006-03-19 23:56:04 +00:00
Chris Lattner d16f6fdd49 add a note with a testcase
llvm-svn: 26877
2006-03-19 22:27:41 +00:00
Chris Lattner 169e6238ad Add a note about the MUL -> FMADD vector bug.
llvm-svn: 26874
2006-03-19 22:08:08 +00:00
Chris Lattner d783c76c18 Teach cee to propagate through switch statements. This implements
Transforms/CorrelatedExprs/switch.ll

Patch contributed by Eric Kidd!

llvm-svn: 26872
2006-03-19 19:37:24 +00:00
Evan Cheng f7c2e3628b Vector undef's
llvm-svn: 26870
2006-03-19 09:38:54 +00:00
Chris Lattner 7e9440a4fc Custom lower SCALAR_TO_VECTOR into lve*x.
llvm-svn: 26868
2006-03-19 06:55:52 +00:00
Chris Lattner 79fb91cc69 Allow SCALAR_TO_VECTOR to be custom lowered.
llvm-svn: 26867
2006-03-19 06:47:21 +00:00
Chris Lattner 9cdc5a0ce7 Add SCALAR_TO_VECTOR support
llvm-svn: 26866
2006-03-19 06:31:19 +00:00
Chris Lattner b1ee9c7e24 PPC doesn't have SCALAR_TO_VECTOR
llvm-svn: 26865
2006-03-19 06:17:19 +00:00
Chris Lattner 5b595af956 add support for vector undef
llvm-svn: 26863
2006-03-19 06:10:09 +00:00
Evan Cheng 0a03f789c2 Remind us of exit value substitution
llvm-svn: 26862
2006-03-19 06:09:23 +00:00
Evan Cheng 5111c81a3c Turning on LSR by default
llvm-svn: 26861
2006-03-19 06:08:49 +00:00
Evan Cheng 66a9c0dea7 Remember which tests are hurt by LSR.
llvm-svn: 26860
2006-03-19 06:08:11 +00:00
Chris Lattner eb5b2e705c Don't bother storing undef elements of BUILD_VECTOR's
llvm-svn: 26858
2006-03-19 05:46:04 +00:00
Chris Lattner 0c9eb670bb minor fixes
llvm-svn: 26857
2006-03-19 05:43:01 +00:00
Chris Lattner ea6468758d notes
llvm-svn: 26856
2006-03-19 05:33:30 +00:00
Chris Lattner 431c90c9fa we don't use lmw/stmw. When we want them they are easy enough to add
llvm-svn: 26853
2006-03-19 04:33:37 +00:00
Chris Lattner 5d3ff12c8f Implement expand of BUILD_VECTOR containing variable elements.
This implements CodeGen/Generic/vector.ll:test_variable_buildvector

llvm-svn: 26852
2006-03-19 04:18:56 +00:00
Chris Lattner 5336a59e4b fold insertelement(buildvector) -> buildvector if the inserted element # is
a constant.  This implements test_constant_insert in CodeGen/Generic/vector.ll

llvm-svn: 26851
2006-03-19 01:27:56 +00:00
Chris Lattner 29b2301460 implement basic support for INSERT_VECTOR_ELT.
llvm-svn: 26849
2006-03-19 01:17:20 +00:00
Chris Lattner f7b6e7212f rename these nodes
llvm-svn: 26848
2006-03-19 01:13:28 +00:00
Chris Lattner f4e1a53647 Rename ConstantVec -> BUILD_VECTOR and VConstant -> VBUILD_VECTOR. Allow*BUILD_VECTOR to take variable inputs.
llvm-svn: 26847
2006-03-19 00:52:58 +00:00
Chris Lattner c16b05e67d implement vector.ll:test_undef
llvm-svn: 26845
2006-03-19 00:20:20 +00:00
Chris Lattner 93640543a9 Fix the remaining bugs in the vector expansion rework I commited yesterday.
This fixes CodeGen/Generic/vector.ll

llvm-svn: 26843
2006-03-19 00:07:49 +00:00
Evan Cheng c28282bd87 - Fixed a bogus if condition.
- Added more debugging info.
- Allow reuse of IV of negative stride. e.g. -4 stride == 2 * iv of -2 stride.

llvm-svn: 26841
2006-03-18 08:03:12 +00:00
Chris Lattner 32206f54c6 Change the structure of lowering vector stuff. Note: This breaks some
things.

llvm-svn: 26840
2006-03-18 01:44:44 +00:00
Evan Cheng 9bf978dc20 Use the generic vector register classes VR64 / VR128 rather than V4F32,
V8I16, etc.

llvm-svn: 26838
2006-03-18 01:23:20 +00:00
Evan Cheng f09f0ebd48 Sort StrideOrder so we can process the smallest strides first. This allows
for more IV reuses.

llvm-svn: 26837
2006-03-18 00:44:49 +00:00
Nate Begeman 21f87d0e4c Fix subfic to match subc by default instead of sub so that it is correctly
cost-modeled as producing a flag.  This fixes the test I just added for neg

llvm-svn: 26835
2006-03-17 22:41:37 +00:00
Evan Cheng b09a56f3a4 Darwin should use _setjmp/_longjmp instead of setjmp/longjmp.
llvm-svn: 26833
2006-03-17 20:31:41 +00:00
Evan Cheng 4f674921d6 Move some pattern fragments to the right files.
llvm-svn: 26831
2006-03-17 19:55:52 +00:00
Chris Lattner 98931bc381 add a couple enum values
llvm-svn: 26830
2006-03-17 19:53:59 +00:00
Evan Cheng 4520698820 Allow users of iv / stride to be rewritten with expression that is a multiply
of a smaller stride even if they have a common loop invariant expression part.

llvm-svn: 26828
2006-03-17 19:52:23 +00:00
Chris Lattner 388fc4d9fb Disable x86 fastcc from passing args in registers
llvm-svn: 26824
2006-03-17 17:27:47 +00:00
Reid Spencer 779c10818c Fix use of LEVEL.
llvm-svn: 26822
2006-03-17 07:39:44 +00:00
Reid Spencer ee4b4f55ee Two fixes:
1. Allow building of Intrinsics.gen to work for srcdir != objdir
2. Add a rule for installation of Intrinsics.gen.

llvm-svn: 26819
2006-03-17 06:27:06 +00:00
Chris Lattner 43798850f9 Parameterize the number of integer arguments to pass in registers
llvm-svn: 26818
2006-03-17 05:10:20 +00:00
Evan Cheng bfc2e97383 Also fold MOV8r0, MOV16r0, MOV32r0 + store to MOV8mi, MOV16mi, and MOV32mi.
llvm-svn: 26817
2006-03-17 02:36:22 +00:00
Evan Cheng aca7915b70 Add some missing entries to X86RegisterInfo::foldMemoryOperand(). e.g.
ADD32ri8.

llvm-svn: 26816
2006-03-17 02:25:01 +00:00
Evan Cheng 27750f3287 - Nuke 16-bit SBB instructions. We'll never use them.
- Nuke a bogus comment.

llvm-svn: 26815
2006-03-17 02:24:04 +00:00
Nate Begeman bb01d4f272 Remove BRTWOWAY*
Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.

llvm-svn: 26814
2006-03-17 01:40:33 +00:00
Chris Lattner 8bf1c59e7f remove dead variable
llvm-svn: 26813
2006-03-16 23:52:08 +00:00
Chris Lattner 7ececaad83 Fix a problem fully scalarizing values.
llvm-svn: 26811
2006-03-16 23:05:19 +00:00
Evan Cheng c11fcceec5 A new entry.
llvm-svn: 26810
2006-03-16 22:44:22 +00:00
Nate Begeman fb0e36fa56 Notes on how to kill the eeevil brtwoway, and make ppc branch selector
more target independant, generate better code, and be less conservative.

llvm-svn: 26809
2006-03-16 22:37:48 +00:00
Chris Lattner 1e6dfa4c1f Strangely, calls clobber call-clobbered vector regs. Whodathoughtit?
llvm-svn: 26808
2006-03-16 22:35:59 +00:00
Chris Lattner 325bb46315 add a note
llvm-svn: 26807
2006-03-16 22:25:55 +00:00
Chris Lattner 91400bd413 teach the ppc backend how to spill/reload vector regs
llvm-svn: 26806
2006-03-16 22:24:02 +00:00
Chris Lattner 6e90062416 add callee saved vector regs
llvm-svn: 26805
2006-03-16 22:07:06 +00:00
Evan Cheng f75555feb9 Bug fix: condition inverted.
llvm-svn: 26804
2006-03-16 22:02:48 +00:00
Evan Cheng 3df447d354 For each loop, keep track of all the IV expressions inserted indexed by
stride. For a set of uses of the IV of a stride which is a multiple
of another stride, do not insert a new IV expression. Rather, reuse the
previous IV and rewrite the uses as uses of IV expression multiplied by
the factor.

e.g.
x = 0 ...; x ++
y = 0 ...; y += 4
then use of y can be rewritten as use of 4*x for x86.

llvm-svn: 26803
2006-03-16 21:53:05 +00:00
Evan Cheng 20931a798e Added a way for TargetLowering to specify what values can be used as the
scale component of the target addressing mode.

llvm-svn: 26802
2006-03-16 21:47:42 +00:00
Chris Lattner 0b27047a6c in functions that use a lot of callee saved regs, this can be more than
5 instructions away.

llvm-svn: 26801
2006-03-16 21:31:45 +00:00
Chris Lattner fd9f3e8ed3 Add support for copying registers. still needed: spilling and reloading them
llvm-svn: 26800
2006-03-16 20:03:58 +00:00
Chris Lattner 8471b15706 Add support for CopyFromReg from vector values. Note: this doesn't support
illegal vector types yet!

llvm-svn: 26799
2006-03-16 19:57:50 +00:00
Chris Lattner 49409cb925 Teach CreateRegForValue how to handle vector types.
llvm-svn: 26798
2006-03-16 19:51:18 +00:00
Chris Lattner ad74844bfa set TransformToType correctly for vector types.
llvm-svn: 26797
2006-03-16 19:50:01 +00:00
Nate Begeman 32e73f9881 Another case we could do better on.
llvm-svn: 26795
2006-03-16 18:50:44 +00:00
Chris Lattner 1678a6c477 Save/restore VRSAVE once per function, not once per block.
llvm-svn: 26793
2006-03-16 18:25:23 +00:00
Chris Lattner 4b41e40621 add support for the bitconvert node
llvm-svn: 26789
2006-03-16 01:29:53 +00:00
Chris Lattner 4024c00ce7 add support for vector->vector casts
llvm-svn: 26788
2006-03-15 22:19:46 +00:00
Chris Lattner cad70c3e46 Add a note, this code should be moved to the dag combiner.
llvm-svn: 26787
2006-03-15 22:19:18 +00:00
Chris Lattner 6d6084fd04 Teach the strip pass to strip type names in addition to value names. This
is fallout from the type/value split in the symtab long long ago :)

llvm-svn: 26785
2006-03-15 19:22:41 +00:00
Jim Laskey 71050ba709 Expand subprogram and added block descriptor.
llvm-svn: 26782
2006-03-15 19:09:58 +00:00
Andrew Lenharth b3dae7cfa9 no heap is happening here
llvm-svn: 26781
2006-03-15 19:03:16 +00:00
Andrew Lenharth c0b65305f1 remove qsort for now
llvm-svn: 26779
2006-03-15 18:32:18 +00:00
Andrew Lenharth fb4df2055f allow field sensitivity to be a tunable parameter
llvm-svn: 26777
2006-03-15 05:43:41 +00:00
Nate Begeman 2e1fde7c5c Update scheduling info for vrsave instruction
llvm-svn: 26776
2006-03-15 05:25:05 +00:00
Andrew Lenharth 3196422df0 Handle one offset with growth case seen in povray. Namely, if we have an offset,
and the offset lands at a field boundary in the old type, construct a new type,
copying the fields masked by the offset from the old type, and unify with that.

llvm-svn: 26775
2006-03-15 04:04:21 +00:00
Andrew Lenharth c254e5b180 improve mem intrinsics and add a few things povray uses
llvm-svn: 26774
2006-03-15 03:43:59 +00:00
Chris Lattner 6995470323 Bugfix, unbreaking CodeGen/PowerPC/cttz.ll
llvm-svn: 26764
2006-03-14 19:49:57 +00:00
Chris Lattner 6d4a221d80 Fix an et-forest memory leak. Patch by Daniel Berlin.
llvm-svn: 26763
2006-03-14 19:41:45 +00:00
Chris Lattner 5271a1f9b5 add a note
llvm-svn: 26762
2006-03-14 19:31:24 +00:00
Jim Laskey b8e155567a 1. Use null for serialized empty strings.
2. Allow for user defined debug descriptors.
3. Allow for user augmented fields on debug descriptors.

llvm-svn: 26760
2006-03-14 18:37:57 +00:00
Chris Lattner ab1ed2aa96 Fix an off by one error that caused PPC LLC failures last night.
llvm-svn: 26758
2006-03-14 17:56:49 +00:00
Chris Lattner c5f866bb4a Implement a FIXME, recusively reassociating
A*A*B + A*A*C   -->   A*(A*B+A*C)   -->   A*(A*(B+C))

This implements Reassociate/mul-factor3.ll

llvm-svn: 26757
2006-03-14 16:04:29 +00:00
Chris Lattner 2fc319d444 extract some code into a method, no functionality change
llvm-svn: 26755
2006-03-14 07:11:11 +00:00
Chris Lattner 30402be175 transformation implemented
llvm-svn: 26754
2006-03-14 06:57:34 +00:00
Chris Lattner d6bde46d85 Promote shifts by a constant to multiplies so that we can reassociate
(x<<1)+(y<<1) -> (X+Y)<<1.  This implements
Transforms/Reassociate/shift-factor.ll

llvm-svn: 26753
2006-03-14 06:55:18 +00:00
Reid Spencer c67a060a51 Convert llvm.cs.uiuc.edu -> llvm.org
llvm-svn: 26748
2006-03-14 05:54:52 +00:00
Jim Laskey cf0bdffe6d 1. Handle removal of all arguments for a morphed intrinsic.
2. Remove the declaration of llvm.dbg.declare.

llvm-svn: 26745
2006-03-14 02:00:35 +00:00
Evan Cheng 0f9d6534f5 PPC LSR pass should use target lowering hooks.
llvm-svn: 26743
2006-03-13 23:56:51 +00:00
Evan Cheng 2dd2c652b2 Added getTargetLowering() to TargetMachine. Refactored targets to support this.
llvm-svn: 26742
2006-03-13 23:20:37 +00:00
Evan Cheng 60f495100a Update
llvm-svn: 26741
2006-03-13 23:19:10 +00:00
Evan Cheng af598d2461 Add LSR hooks.
llvm-svn: 26740
2006-03-13 23:18:16 +00:00
Evan Cheng c567c4efbb Added target lowering hooks which LSR consults to make more intelligent
transformation decisions.

llvm-svn: 26738
2006-03-13 23:14:23 +00:00
Chris Lattner 2b8eb375d7 Handle builtins that directly correspond to GCC builtins.
llvm-svn: 26737
2006-03-13 23:09:05 +00:00
Chris Lattner 02e2c18c9c For functions that use vector registers, save VRSAVE, mark used
registers, and update it on entry to each function, then restore it on exit.

This compiles:

void func(vfloat *a, vfloat *b, vfloat *c) {
        *a = *b * *c + *c;
}

to this:

_func:
        mfspr r2, 256
        oris r6, r2, 49152
        mtspr 256, r6
        lvx v0, 0, r5
        lvx v1, 0, r4
        vmaddfp v0, v1, v0, v0
        stvx v0, 0, r3
        mtspr 256, r2
        blr

GCC produces this (which has additional stack accesses):

_func:
        mfspr r0,256
        stw r0,-4(r1)
        oris r0,r0,0xc000
        mtspr 256,r0
        lvx v0,0,r5
        lvx v1,0,r4
        lwz r12,-4(r1)
        vmaddfp v0,v0,v1,v0
        stvx v0,0,r3
        mtspr 256,r12
        blr

llvm-svn: 26733
2006-03-13 21:52:10 +00:00
Chris Lattner 68ac09d5cb make sure dead token factor nodes are removed by the dag combiner.
llvm-svn: 26731
2006-03-13 18:37:30 +00:00
Reid Spencer 611f965820 Bring makefile back into compliance with standard by using
$(Echo) instead of @echo

llvm-svn: 26730
2006-03-13 17:57:31 +00:00
Jim Laskey acb6e34277 Handle the removal of the debug chain.
llvm-svn: 26729
2006-03-13 13:07:37 +00:00
Chris Lattner fe4c7fb7ae remove two implemented items
llvm-svn: 26728
2006-03-13 06:52:22 +00:00
Chris Lattner d8c2a48d58 Fold X+Y -> X|Y when safe. This implements:
Regression/CodeGen/PowerPC/and_add.ll

a case that occurs with dynamic allocas of constant size.

llvm-svn: 26727
2006-03-13 06:51:27 +00:00
Chris Lattner 3d761b6211 I can't convince myself that this is safe, remove the recursive call.
llvm-svn: 26725
2006-03-13 06:42:16 +00:00
Chris Lattner 8bb6cb7d7b add a couple of missing folds
llvm-svn: 26724
2006-03-13 06:26:26 +00:00
Chris Lattner 994d8e6bd4 For targets with FABS/FNEG support, lower copysign to an integer load,
a select and FABS/FNEG.

This speeds up a trivial (aka stupid) copysign benchmark I wrote from 6.73s
to 2.64s, woo.

llvm-svn: 26723
2006-03-13 06:08:38 +00:00
Chris Lattner ec9d0bc3ec Fix a couple of bugs that broke the alpha tester build
llvm-svn: 26722
2006-03-13 05:23:59 +00:00
Chris Lattner 4fbb612685 Handle cracked instructions in dispatch group formation.
llvm-svn: 26721
2006-03-13 05:20:04 +00:00
Chris Lattner 7579cfb1a0 Mark instructions that are cracked by the PPC970 decoder as such.
llvm-svn: 26720
2006-03-13 05:15:10 +00:00
Chris Lattner 51348c5f27 Several big changes:
1. Use flags on the instructions in the .td file to indicate the PPC970 unit
   type instead of a table in the .cpp file.  Much cleaner.
2. Change the hazard recognizer to build d-groups according to the actual
   algorithm used, not my flawed understanding of it.
3. Model "must be in the first slot" and "must be the only instr in a group"
   accurately.

llvm-svn: 26719
2006-03-12 09:13:49 +00:00
Chris Lattner a767dbf197 Don't advance the hazard recognizer when there are no hazards and no instructions
to be emitted.

Don't add one to the latency of a completed instruction if the latency of the
op is 0.

llvm-svn: 26718
2006-03-12 09:01:41 +00:00
Chris Lattner 86a9b60a25 Chain operands aren't real uses: they don't require the full latency of the
predecessor to finish before they can start.

llvm-svn: 26717
2006-03-12 03:52:09 +00:00
Chris Lattner 572003ca15 As a pending queue data structure to keep track of instructions whose
operands have all issued, but whose results are not yet available.  This
allows us to compile:

int G;
int test(int A, int B, int* P) {
   return (G+A)*(B+1);
}

to:

_test:
        lis r2, ha16(L_G$non_lazy_ptr)
        addi r4, r4, 1
        lwz r2, lo16(L_G$non_lazy_ptr)(r2)
        lwz r2, 0(r2)
        add r2, r2, r3
        mullw r3, r2, r4
        blr

instead of this, which has a stall between the lis/lwz:

_test:
        lis r2, ha16(L_G$non_lazy_ptr)
        lwz r2, lo16(L_G$non_lazy_ptr)(r2)
        addi r4, r4, 1
        lwz r2, 0(r2)
        add r2, r2, r3
        mullw r3, r2, r4
        blr

llvm-svn: 26716
2006-03-12 00:38:57 +00:00
Chris Lattner 356183d91e rename priorityqueue -> availablequeue. When a node is scheduled, remember
which cycle it lands on.

llvm-svn: 26714
2006-03-11 22:44:37 +00:00
Chris Lattner 063086b0f4 Make CurrCycle a local var instead of an instance var
llvm-svn: 26713
2006-03-11 22:34:41 +00:00
Chris Lattner 9995a0c019 Move some methods around so that BU specific code is together, TD specific code
is together, and direction independent code is together.

llvm-svn: 26712
2006-03-11 22:28:35 +00:00
Chris Lattner 578d8fcb59 merge preds/chainpreds -> preds set
merge succs/chainsuccs -> succs set

This has no functionality change, simplifies the code, and reduces the size
of sunits.

llvm-svn: 26711
2006-03-11 22:24:20 +00:00
Chris Lattner d03132a409 blr is a branch too
llvm-svn: 26710
2006-03-11 21:49:49 +00:00
Chris Lattner 4e56b686f1 add an example
llvm-svn: 26709
2006-03-11 20:20:40 +00:00
Chris Lattner 003f633036 add a note
llvm-svn: 26708
2006-03-11 20:17:08 +00:00
Nate Begeman d5811b965d Fix PR681 by using the standard Lengauer and Tarjan algorithm for dominator
set construction, rather than intersecting various std::sets.  This reduces
the memory usage for the testcase in PR681 from 496 to 26MB of ram on my
darwin system, and reduces the runtime from 32.8 to 0.8 seconds on a
2.5GHz G5.  This also enables future code sharing between Dom and PostDom
now that they share near-identical implementations.

llvm-svn: 26707
2006-03-11 02:20:46 +00:00
Evan Cheng 2c5e530430 Doh!
llvm-svn: 26705
2006-03-11 00:13:10 +00:00
Evan Cheng 38280c0020 Added a parameter to control whether Constant::getStringValue() would chop
off the result string at the first null terminator.

llvm-svn: 26704
2006-03-10 23:52:03 +00:00
Chris Lattner 8a18a823a0 remove some dead code
llvm-svn: 26703
2006-03-10 23:14:22 +00:00
Chris Lattner d3ef6c290a scrape out bits of llvm-db
llvm-svn: 26701
2006-03-10 22:48:19 +00:00
Chris Lattner 7d587f37ec Remove UnixLocalInferiorProcess: debugging via the JIT isn't a good idea.
Perhaps llvm-db will turn into a read debugger someday.

llvm-svn: 26700
2006-03-10 22:39:48 +00:00
Chris Lattner c2447e8b59 teach the JIT to encode vector registers
llvm-svn: 26697
2006-03-10 20:19:50 +00:00
Chris Lattner f918e15362 Move simple-selector-specific types to the simple selector.
llvm-svn: 26693
2006-03-10 07:51:18 +00:00
Chris Lattner 5255d04357 Simplify the interface to the schedulers, to not pass the selected heuristicin.
llvm-svn: 26692
2006-03-10 07:49:12 +00:00
Chris Lattner a5b93b8c6d Move some simple-sched-specific instance vars to the simple scheduler.
llvm-svn: 26690
2006-03-10 07:42:02 +00:00
Chris Lattner e015178de1 prune #includes
llvm-svn: 26689
2006-03-10 07:37:35 +00:00
Chris Lattner 4b70ff7876 move some simple scheduler methods into the simple scheduler
llvm-svn: 26688
2006-03-10 07:35:21 +00:00
Chris Lattner dc2f135f5c Make EmitNode take a SDNode instead of a NodeInfo*
llvm-svn: 26687
2006-03-10 07:28:36 +00:00
Chris Lattner b9d8fa0342 Move the VRBase field from NodeInfo to being a separate, explicit, map.
llvm-svn: 26686
2006-03-10 07:25:12 +00:00
Chris Lattner c48cfba44b no need to build groups anymore
llvm-svn: 26684
2006-03-10 07:15:58 +00:00
Chris Lattner 6f82fe8106 Create SUnits directly from the SelectionDAG.
llvm-svn: 26683
2006-03-10 07:13:32 +00:00
Chris Lattner 2f8c7c3d55 Push PrepareNodeInfo/IdentifyGroups down the inheritance hierarchy
llvm-svn: 26682
2006-03-10 06:34:51 +00:00
Chris Lattner 349e9ddccc Teach the latency scheduler some new tricks. In particular, to break ties,
keep track of a sense of "mobility", i.e. how many other nodes scheduling one
node will free up.  For something like this:

float testadd(float *X, float *Y, float *Z, float *W, float *V) {
  return (*X+*Y)*(*Z+*W)+*V;
}

For example, this makes us schedule *X then *Y, not *X then *Z.  The former
allows us to issue the add, the later only lets us issue other loads.

This turns the above code from this:

_testadd:
        lfs f0, 0(r3)
        lfs f1, 0(r6)
        lfs f2, 0(r4)
        lfs f3, 0(r5)
        fadds f0, f0, f2
        fadds f1, f3, f1
        lfs f2, 0(r7)
        fmadds f1, f0, f1, f2
        blr

into this:

_testadd:
        lfs f0, 0(r6)
        lfs f1, 0(r5)
        fadds f0, f1, f0
        lfs f1, 0(r4)
        lfs f2, 0(r3)
        fadds f1, f2, f1
        lfs f2, 0(r7)
        fmadds f1, f1, f0, f2
        blr

llvm-svn: 26680
2006-03-10 05:51:05 +00:00
Chris Lattner 25e2556b71 add an aggregate method for reinserting scheduled nodes, add a callback for
priority impls that want to be notified when a node is scheduled

llvm-svn: 26678
2006-03-10 04:32:49 +00:00
Jeff Cohen 6ce97687f7 Fix VC++ build breakage.
llvm-svn: 26676
2006-03-10 03:57:45 +00:00
Chris Lattner 60f6833376 use autogenerated side-effect information
llvm-svn: 26673
2006-03-09 22:38:10 +00:00
Chris Lattner bb40a9fa58 Use autogenerated mod/ref info for intrinsics.
llvm-svn: 26670
2006-03-09 22:31:29 +00:00
Chris Lattner 591693f3bf Use the autogenerated intrinsic verifier
llvm-svn: 26667
2006-03-09 22:06:04 +00:00
Evan Cheng 306c13a8fb Add option -enable-x86-lsr to enable x86 loop strength reduction pass.
llvm-svn: 26665
2006-03-09 21:51:28 +00:00
Chris Lattner ff4d4ee163 Use the function name matcher autogenerated from the .td file.
llvm-svn: 26664
2006-03-09 20:35:01 +00:00
Chris Lattner 285c95d7eb This rule also depends on tblgen
llvm-svn: 26662
2006-03-09 20:29:41 +00:00
Chris Lattner f136299635 add a note
llvm-svn: 26661
2006-03-09 20:13:21 +00:00
Chris Lattner 213209a248 remove dbg_declare, it's not used yet.
llvm-svn: 26659
2006-03-09 20:02:42 +00:00
Chris Lattner ea0aa2868f silly case insensitive file systems...
llvm-svn: 26658
2006-03-09 19:55:06 +00:00
Chris Lattner 83e6e19936 Build intrinsics.gen from intrinsics.td
llvm-svn: 26657
2006-03-09 19:53:27 +00:00
Chris Lattner ab8d2ba046 autoupgrade memcpy/memmove/memset with signed counts.
CVS: ----------------------------------------------------------------------

llvm-svn: 26654
2006-03-09 18:42:10 +00:00
Andrew Lenharth 43e569c95f these are copies too
llvm-svn: 26653
2006-03-09 18:18:51 +00:00
Chris Lattner 7e7dccd3ab remove some now-dead code
llvm-svn: 26652
2006-03-09 18:07:49 +00:00
Andrew Lenharth 70236fc12f fcopysign for mixed mode
llvm-svn: 26651
2006-03-09 17:56:33 +00:00
Chris Lattner f0fc6bbaf3 back out my previous hack
llvm-svn: 26650
2006-03-09 17:48:46 +00:00
Andrew Lenharth ebfd94fa1d relax fcopysign
llvm-svn: 26649
2006-03-09 17:47:22 +00:00
Andrew Lenharth 4a87e7d9a3 alpha and llvm have different oppinions on which arg is the sign bit
llvm-svn: 26647
2006-03-09 17:41:50 +00:00
Chris Lattner c6c9e65301 remove temporary option
llvm-svn: 26646
2006-03-09 17:31:22 +00:00
Andrew Lenharth 16b96d2cb4 Alpha Scheduling classes
llvm-svn: 26643
2006-03-09 17:16:45 +00:00
Chris Lattner c44be2c4ef temporary hack to get the build working again, apparently a header
commit was forgotten

llvm-svn: 26642
2006-03-09 17:11:08 +00:00
Andrew Lenharth ed7a293b44 fcopysign and get rid of dsnode cruft. custom PA runtimes make this better in some senses
llvm-svn: 26641
2006-03-09 14:58:25 +00:00
Andrew Lenharth b8a06a7c6c fcopysign support
llvm-svn: 26640
2006-03-09 14:57:36 +00:00
Jim Laskey 4b0e1d9e6c Move bit field endianness to backend.
llvm-svn: 26639
2006-03-09 13:28:47 +00:00
Chris Lattner d17d77aa1d yes yes, enabled debug output is bad
llvm-svn: 26637
2006-03-09 07:39:25 +00:00
Chris Lattner 6398c13128 switch the t-d scheduler to use a really dumb and trivial critical path
latency priority function.

llvm-svn: 26636
2006-03-09 07:38:27 +00:00
Chris Lattner d4130375c0 Pull latency information for target instructions out of the latency tables. :)
Only enable this with -use-sched-latencies, I'll enable it by default with a
clean nightly tester run tonight.

PPC is the only target that provides latency info currently.

llvm-svn: 26634
2006-03-09 07:15:18 +00:00
Chris Lattner da6aafeef4 don't copy all itinerary data
llvm-svn: 26633
2006-03-09 07:13:00 +00:00
Chris Lattner 399bee27f0 PriorityQueue is an instance var, use it.
llvm-svn: 26632
2006-03-09 06:48:37 +00:00
Chris Lattner 9e95accf4e add some comments
llvm-svn: 26631
2006-03-09 06:37:29 +00:00
Chris Lattner 9df647539d Refactor the priority mechanism one step further: now that it is a separate
class, sever its implementation from the interface.  Now we can provide new
implementations of the same interface (priority computation) without touching
the scheduler itself.

llvm-svn: 26630
2006-03-09 06:35:14 +00:00
Chris Lattner e363fdf318 Add support for 'special' llvm globals like debug info and static ctors/dtors.
llvm-svn: 26628
2006-03-09 06:14:35 +00:00
Chris Lattner 6b7847a5bc fix a pasto
llvm-svn: 26627
2006-03-09 06:09:41 +00:00
Chris Lattner 920e661e50 a couple of miscellaneous things.
llvm-svn: 26625
2006-03-09 01:39:46 +00:00
Jim Laskey 8f0a95f664 Add #line support for CBE.
llvm-svn: 26621
2006-03-08 19:31:15 +00:00
Chris Lattner faae50b66b Add a helper method for running static ctors/dtors in the module.
llvm-svn: 26619
2006-03-08 18:42:46 +00:00
Chris Lattner 48a8e09ad0 add a new helper method.
llvm-svn: 26618
2006-03-08 18:39:13 +00:00
Jim Laskey 2698f0de7a Get rid of the multiple copies of getStringValue. Now a Constant:: method.
llvm-svn: 26616
2006-03-08 18:11:07 +00:00
Duraid Madina 5005b01c20 doo de doo
llvm-svn: 26614
2006-03-08 06:18:46 +00:00
Chris Lattner fd22d42945 Split the priority function computation and priority queue management out
of the ScheduleDAGList class into a new SchedulingPriorityQueue class.

llvm-svn: 26613
2006-03-08 05:18:27 +00:00
Chris Lattner 42e2026cb0 switch from an explicitly managed list of SUnits to a simple vector of sunits
llvm-svn: 26612
2006-03-08 04:54:34 +00:00
Chris Lattner 12c6d89204 Shrinkify some fields, fit to 80 columns
llvm-svn: 26611
2006-03-08 04:41:06 +00:00
Chris Lattner 3fe975b846 revert the previous patch, didn't mean to check it in yet
llvm-svn: 26610
2006-03-08 04:39:05 +00:00
Chris Lattner af5e26c980 remove "Slot", it is dead
llvm-svn: 26609
2006-03-08 04:37:58 +00:00
Chris Lattner 543832d39d Change the interface for getting a target HazardRecognizer to be more clean.
llvm-svn: 26608
2006-03-08 04:25:59 +00:00
Jim Laskey 2370265550 libstdc++-v3 was failing to build. Needed to handle composite types with empty
members (running into a zero initializer.)

llvm-svn: 26607
2006-03-08 02:07:02 +00:00
Chris Lattner fc34f8bb48 Fix a miscompilation of 188.ammp with the new CFE. 188.ammp is accessing
arrays out of range in a horrible way, but we shouldn't break it anyway.
Details in the comments.

llvm-svn: 26606
2006-03-08 01:05:29 +00:00
Chris Lattner a8dd636192 add a note
llvm-svn: 26605
2006-03-08 00:25:47 +00:00
Evan Cheng 70b25efa57 X86ISD::REP_STOS and X86ISD::REP_MOVS now produces a flag.
llvm-svn: 26604
2006-03-07 23:34:23 +00:00
Evan Cheng adc7093fc1 Use rep/stosl; and Count 0x3; rep/stosb for memset with 4 byte aligned dest.
and variable value.
Similarly for memcpy.

llvm-svn: 26603
2006-03-07 23:29:39 +00:00
Chris Lattner 207291fd1a Two things:
1. Don't emit debug info, or other llvm.metadata to the .cbe.c file.
2. Mark static ctors/dtors as such, so that bugpoint works on C++ code
   compiled with the new CFE.

llvm-svn: 26602
2006-03-07 22:58:23 +00:00
Jim Laskey 313570fb17 Use "llvm.metadata" section for debug globals. Filter out these globals in the
asm printer.

llvm-svn: 26599
2006-03-07 22:00:35 +00:00
Jim Laskey 69effa2325 Switch to using a numeric id for anchors.
llvm-svn: 26598
2006-03-07 20:53:47 +00:00
Chris Lattner 7b87fd53f9 Fix ConstantMerge/2006-03-07-DontMergeDiffSections.ll, a problem Jim
hypotheticalized about, where we would incorrectly merge two globals in
different sections.

llvm-svn: 26597
2006-03-07 17:56:59 +00:00
Chris Lattner 907e13c742 add another missing store.
llvm-svn: 26595
2006-03-07 16:26:48 +00:00
Chris Lattner 8c73d80b08 add a couple more load/store instrs, add a newline to the end of file.
llvm-svn: 26594
2006-03-07 16:19:46 +00:00
Jim Laskey 3bad199894 Bitfield support.
llvm-svn: 26593
2006-03-07 15:51:33 +00:00
Nate Begeman 3e3219cc0a This kinda sorta implements "things that have to lead a dispatch group".
llvm-svn: 26591
2006-03-07 08:30:27 +00:00
Chris Lattner 675567f77c add some new instructions to the classifier. With this, we correctly insert
a nop into Freebench/neural, which speeds it up from 136->129s (~5.4%).

llvm-svn: 26590
2006-03-07 07:14:55 +00:00
Chris Lattner 05ad128dca add some comments that describe what we model
llvm-svn: 26588
2006-03-07 06:44:19 +00:00
Chris Lattner 2cab13573c Implement a very very simple hazard recognizer for LSU rejects and ctr set/read
flushes

llvm-svn: 26587
2006-03-07 06:32:48 +00:00
Chris Lattner 0c801bd1cf Fix some formatting, when looking for hazards, prefer target nodes over
things like copyfromreg.

llvm-svn: 26586
2006-03-07 05:40:43 +00:00
Chris Lattner 883cefc656 add a note
llvm-svn: 26585
2006-03-07 04:42:59 +00:00
Chris Lattner bccb0e07f0 add a note
llvm-svn: 26583
2006-03-07 02:46:26 +00:00
Evan Cheng a4a4ceb478 - Emit subsections_via_symbols for Darwin.
- Conditionalize Dwarf debugging output (Darwin only for now).

llvm-svn: 26582
2006-03-07 02:23:26 +00:00
Evan Cheng 30d7b70b73 Enable Dwarf debugging info.
llvm-svn: 26581
2006-03-07 02:02:57 +00:00
Chris Lattner 53ef5a032c Teach the alignment handling code to look through constant expr casts and GEPs
llvm-svn: 26580
2006-03-07 01:28:57 +00:00
Chris Lattner 82f2ef20b6 Teach instcombine to increase the alignment of memset/memcpy/memmove when
the pointer is known to come from either a global variable, alloca or
malloc.  This allows us to compile this:

  P = malloc(28);
  memset(P, 0, 28);

into explicit stores on PPC instead of a memset call.

llvm-svn: 26577
2006-03-06 20:18:44 +00:00
Chris Lattner 01aa752a36 update file comment
llvm-svn: 26573
2006-03-06 17:58:04 +00:00
Evan Cheng a00c61932d Remove some code that doesn't make sense
llvm-svn: 26572
2006-03-06 07:31:44 +00:00
Evan Cheng c5c0658aa6 Remove SUnit::Priority1: it is re-calculated on demand as number of live
range to be generated.

llvm-svn: 26570
2006-03-06 06:08:54 +00:00
Chris Lattner 47639dbb93 Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where
targets can implement them.  Make the top-down scheduler non-g5-specific.

Remove the old testing hazard recognizer.

llvm-svn: 26569
2006-03-06 00:22:00 +00:00
Chris Lattner 00b52ea8f9 Comment fixes
llvm-svn: 26567
2006-03-05 23:59:20 +00:00
Chris Lattner 80268aaeed Don't depend on the C99 copysign function, implement it ourselves.
llvm-svn: 26566
2006-03-05 23:57:58 +00:00
Chris Lattner 2d945ba4c7 When a hazard recognizer needs noops to be inserted, do so. This represents
noops as null pointers in the instruction sequence.

llvm-svn: 26564
2006-03-05 23:51:47 +00:00
Chris Lattner ea79d9fd73 implement TII::insertNoop
llvm-svn: 26562
2006-03-05 23:49:55 +00:00
Chris Lattner fa5e1c9c26 Implement G5HazardRecognizer as a trivial thing that wants 5 cycles between
copyfromreg nodes.  Clearly useful!

llvm-svn: 26559
2006-03-05 23:13:56 +00:00
Chris Lattner e50c092b7c Add basic hazard recognizer support. noop insertion isn't complete yet though.
llvm-svn: 26558
2006-03-05 22:45:01 +00:00
Jeff Cohen 55e2aac24b Fix VC++ compilation error.
llvm-svn: 26554
2006-03-05 21:43:37 +00:00
Chris Lattner 98ecb8ec61 Split the list scheduler into top-down and bottom-up pieces. The priority
function of the top-down scheduler are completely bogus currently, and
having (future) PPC specific in this file is also wrong, but this is a
small incremental step.

llvm-svn: 26552
2006-03-05 21:10:33 +00:00
Chris Lattner 7a36d97518 Move the available queue to being inside the ListSchedule method, since it
bounds its lifetime.

llvm-svn: 26550
2006-03-05 20:21:55 +00:00
Chris Lattner 5032c32d30 add a note
llvm-svn: 26549
2006-03-05 20:00:08 +00:00
Chris Lattner bdaf4f38b5 Reinstate this now that the offending opposite xform has been removed.
llvm-svn: 26548
2006-03-05 19:53:55 +00:00
Chris Lattner c726a5c31f Do not fold (add (shl x, c1), (shl c2, c1)) -> (shl (add x, c2), c1),
we want to canonicalize the other way.

llvm-svn: 26547
2006-03-05 19:52:57 +00:00
Chris Lattner c610e62e46 print arbitrary constant pool entries
llvm-svn: 26545
2006-03-05 09:38:03 +00:00
Evan Cheng d428e22c07 Back out fold (shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2) for now.
It's causing an infinite loop compiling ldecod on x86 / Darwin.

llvm-svn: 26544
2006-03-05 07:30:16 +00:00
Chris Lattner 3bc4050217 Add some simple copysign folds
llvm-svn: 26543
2006-03-05 05:30:57 +00:00
Chris Lattner 5c1ba2ac08 Codegen copysign[f] into a FCOPYSIGN node
llvm-svn: 26542
2006-03-05 05:09:38 +00:00
Chris Lattner 9c7f50376a Copysign needs to be expanded everywhere. Note that Alpha and IA64 should
implement copysign as a native op if they have it.

llvm-svn: 26541
2006-03-05 05:08:37 +00:00
Chris Lattner c2dd7aae71 add a note for something evan noticed
llvm-svn: 26539
2006-03-05 01:15:18 +00:00
Chris Lattner 6bc98653c2 Make vector narrowing more effective, implementing
Transforms/InstCombine/vec_narrow.ll.  This add support for narrowing
extract_element(insertelement) also.

llvm-svn: 26538
2006-03-05 00:22:33 +00:00
Chris Lattner 8d8b4cf63d Implemented.
llvm-svn: 26536
2006-03-04 23:33:44 +00:00
Chris Lattner f29f5204cc fold (mul (add x, c1), c2) -> (add (mul x, c2), c1*c2)
fold (shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2)

This allows us to compile CodeGen/PowerPC/addi-reassoc.ll into:

_test1:
        slwi r2, r4, 4
        add r2, r2, r3
        lwz r3, 36(r2)
        blr
_test2:
        mulli r2, r4, 5
        add r2, r2, r3
        lbz r2, 11(r2)
        extsb r3, r2
        blr

instead of:

_test1:
        addi r2, r4, 2
        slwi r2, r2, 4
        add r2, r3, r2
        lwz r3, 4(r2)
        blr
_test2:
        addi r2, r4, 2
        mulli r2, r2, 5
        add r2, r3, r2
        lbz r2, 1(r2)
        extsb r3, r2
        blr

llvm-svn: 26535
2006-03-04 23:33:26 +00:00
Chris Lattner 3e19c23765 Fix a crash compiling Obsequi
llvm-svn: 26529
2006-03-04 21:48:01 +00:00
Chris Lattner 4c065091d8 Add factoring of multiplications, e.g. turning A*A+A*B into A*(A+B).
Testcase here: Transforms/Reassociate/mulfactor.ll

llvm-svn: 26524
2006-03-04 09:31:13 +00:00
Chris Lattner c9a318d8fa Add a note
llvm-svn: 26523
2006-03-04 08:44:51 +00:00
Chris Lattner adf5ec6f96 Regenerate
llvm-svn: 26522
2006-03-04 07:53:41 +00:00
Chris Lattner a33bcff313 Don't use invalidated iterators!
llvm-svn: 26521
2006-03-04 07:53:16 +00:00
Evan Cheng c66fd44541 Add an entry
llvm-svn: 26520
2006-03-04 07:49:50 +00:00
Chris Lattner 32c01df299 Canonicalize (X+C1)*C2 -> X*C2+C1*C2
This implements Transforms/InstCombine/add.ll:test31

llvm-svn: 26519
2006-03-04 06:04:02 +00:00
Evan Cheng 6dc73297c3 MEMSET / MEMCPY lowering bugs: we can't issue a single WORD / DWORD version of
rep/stos and rep/mov if the count is not a constant. We could do
  rep/stosl; and $count, 3; rep/stosb
For now, I will lower them to memset / memcpy calls. We will revisit this after
a little bit experiment.

Also need to take care of the trailing bytes even if the count is a constant.
Since the max. number of trailing bytes are 3, we will simply issue loads /
stores.

llvm-svn: 26517
2006-03-04 02:48:56 +00:00
Chris Lattner 071faf25e0 Be more conservative with our symbolic alias analysis. In particular,
don't assume that A[1][0] and A[0][i] can't alias.  "i" might be out of
range, or even negative.  This fixes a miscompilation of 188.ammp (which
does bad pointer tricks) with the new CFE.

Testcase here: Analysis/BasicAA/2006-03-03-BadArraySubscript.ll

llvm-svn: 26515
2006-03-04 02:06:34 +00:00
Chris Lattner e43e5c0697 add a note
llvm-svn: 26513
2006-03-04 01:19:34 +00:00
Evan Cheng 084a102b17 Typo
llvm-svn: 26512
2006-03-04 01:12:00 +00:00
Jim Laskey c44f05d624 Added support for dwarf block data entries.
llvm-svn: 26509
2006-03-03 21:00:14 +00:00
Chris Lattner c2de4f3dc1 Unbreak autouprade of llvm.sqrt, simplify some code.
llvm-svn: 26506
2006-03-03 16:31:22 +00:00
Jim Laskey 88f0fe15a2 Adding basic structure support.
llvm-svn: 26505
2006-03-03 15:06:57 +00:00
Evan Cheng 3bf916ddd9 Add more vector NodeTypes: VSDIV, VUDIV, VAND, VOR, and VXOR.
llvm-svn: 26504
2006-03-03 07:01:07 +00:00
Evan Cheng a7fb285c60 Number of NodeTypes now exceeds 128.
llvm-svn: 26503
2006-03-03 06:58:59 +00:00
Evan Cheng 23e75f5b49 SDOperand::isOperand should not be a forwarding. It must check *this against N's operands.
llvm-svn: 26502
2006-03-03 06:42:32 +00:00
Evan Cheng 6b08ae8497 Added isOperand(N): true if this is an operand of N
llvm-svn: 26501
2006-03-03 06:24:54 +00:00
Evan Cheng 5e9a695026 A bit more tweaking
llvm-svn: 26500
2006-03-03 06:23:43 +00:00
Jeff Cohen 55c1173a6c Fix VC++ compilation errors.
llvm-svn: 26498
2006-03-03 03:25:07 +00:00
Evan Cheng 993e9cf26e Move #include "llvm/CodeGen/AsmPrinter.h" to top since it's the interface.
llvm-svn: 26493
2006-03-03 02:04:29 +00:00
Chris Lattner b203355298 Split the valuetypes out of Target.td into ValueTypes.td
llvm-svn: 26490
2006-03-03 01:55:26 +00:00
Chris Lattner 681ef2f083 Change this to work with renamed intrinsics.
llvm-svn: 26484
2006-03-03 01:34:17 +00:00
Chris Lattner ea7986aeca Make this work with renamed intrinsics.
llvm-svn: 26482
2006-03-03 01:30:23 +00:00
Chris Lattner bce2626d8a updates for recent changes
llvm-svn: 26481
2006-03-03 01:21:36 +00:00
Chris Lattner ad3c974a77 remove the read/write port/io intrinsics.
llvm-svn: 26479
2006-03-03 00:19:58 +00:00
Chris Lattner 093c159efb Split memcpy/memset/memmove intrinsics into i32/i64 versions, resolving
PR709, and paving the way for future progress.

llvm-svn: 26476
2006-03-03 00:00:25 +00:00
Chris Lattner 259d680c15 Simplify the autoupgrade interface
llvm-svn: 26475
2006-03-02 23:59:12 +00:00
Chris Lattner d124535de1 Split memcpy/memset/memmove intrinsics into i32/i64 versions, resolving
PR709, and paving the way for future progress.

Significantly refactor autoupgrading code, to handle the more complex case
(where we upgrade one argument in a function), and fix some bugs in it.

Testcase here: llvm/test/Regression/Bytecode/memcpy.ll

llvm-svn: 26474
2006-03-02 23:58:40 +00:00
Chris Lattner 9067500e2e add a note
llvm-svn: 26472
2006-03-02 22:34:38 +00:00
Evan Cheng 4e3904f637 - Fixed some priority calculation bugs that were causing bug 478. Among them:
a predecessor appearing more than once in the operand list was counted as
  multiple predecessor; priority1 should be updated during scheduling;
  CycleBound was updated after the node is inserted into priority queue; one
  of the tie breaking condition was flipped.
- Take into consideration of two address opcodes. If a predecessor is a def&use
  operand, it should have a higher priority.
- Scheduler should also favor floaters, i.e. nodes that do not have real
  predecessors such as MOV32ri.
- The scheduling fixes / tweaks fixed bug 478:
        .text
        .align  4
        .globl  _f
_f:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        movl %eax, %edx
        imull %ecx, %edx
        imull %eax, %eax
        imull %ecx, %ecx
        addl %eax, %ecx
        leal (%ecx,%edx,2), %eax
        ret

  It is also a slight performance win (1% - 3%) for most tests.

llvm-svn: 26470
2006-03-02 21:38:29 +00:00
Chris Lattner 85dda9a2bd Generalize the REM folding code to handle another case Nick Lewycky
pointed out: realize the AND can provide factors and look through Casts.

llvm-svn: 26469
2006-03-02 06:50:58 +00:00
Jim Laskey 862001ad75 Support for enumerations.
llvm-svn: 26466
2006-03-01 23:52:37 +00:00
Evan Cheng 38d5e768b2 Don't print llvm constant in assmebly file. Assembler won't like comments that
span multiple lines.

llvm-svn: 26463
2006-03-01 22:18:09 +00:00
Evan Cheng 5b19a80321 Back out my last check-in. Wrong place to fix it.
llvm-svn: 26462
2006-03-01 22:17:00 +00:00
Evan Cheng 302bdb586f AsmWriter should not print LLVM constant in comment. Assembler won't like
multi-line comments.

llvm-svn: 26461
2006-03-01 22:00:59 +00:00
Chris Lattner 0db2f2c689 Fix CodeGen/Generic/2006-03-01-dagcombineinfloop.ll, an infinite loop
in the dag combiner on 176.gcc on x86.

llvm-svn: 26459
2006-03-01 21:47:21 +00:00
Jim Laskey 4e71db13d6 Switch back to using actual dwarf tags. Simplifies code without loss to other
debug forms.

llvm-svn: 26455
2006-03-01 20:39:36 +00:00
Chris Lattner 232024edb8 Fix a typo evan noticed
llvm-svn: 26454
2006-03-01 19:55:35 +00:00
Jim Laskey f770cf5b90 Use context and not compile unit.
llvm-svn: 26453
2006-03-01 18:20:30 +00:00
Jim Laskey 1246d5c054 I guess I can handle large type sizes.
llvm-svn: 26452
2006-03-01 18:13:05 +00:00
Jim Laskey b9ac4cba66 Basic array support.
llvm-svn: 26451
2006-03-01 17:53:02 +00:00
Chris Lattner 60a60f4b1e Implement CodeGen/PowerPC/or-addressing-mode.ll, which is also PR668.
llvm-svn: 26450
2006-03-01 07:14:48 +00:00
Chris Lattner 3cb349a068 add a note
llvm-svn: 26448
2006-03-01 06:36:20 +00:00
Chris Lattner 27f5345b1f Compile this:
void foo(float a, int *b) { *b = a; }

to this:

_foo:
        fctiwz f0, f1
        stfiwx f0, 0, r4
        blr

instead of this:

_foo:
        fctiwz f0, f1
        stfd f0, -8(r1)
        lwz r2, -4(r1)
        stw r2, 0(r4)
        blr

This implements CodeGen/PowerPC/stfiwx.ll, and also incidentally does the
right thing for GCC bugzilla 26505.

llvm-svn: 26447
2006-03-01 05:50:56 +00:00
Chris Lattner f418435819 Use a target-specific dag-combine to implement CodeGen/PowerPC/fp-int-fp.ll.
llvm-svn: 26445
2006-03-01 04:57:39 +00:00
Chris Lattner bc1c85beea Add support for target-specific dag combines
llvm-svn: 26443
2006-03-01 04:53:38 +00:00
Chris Lattner 4a2eeea671 Add interfaces for targets to provide target-specific dag combiner optimizations.
llvm-svn: 26442
2006-03-01 04:52:55 +00:00
Chris Lattner fbcd62d3bb Add a new AddToWorkList method, start using it
llvm-svn: 26441
2006-03-01 04:03:14 +00:00
Chris Lattner 324871ef1a Pull shifts by a constant through multiplies (a form of reassociation),
implementing Regression/CodeGen/X86/mul-shift-reassoc.ll

llvm-svn: 26440
2006-03-01 03:44:24 +00:00
Evan Cheng 1926427351 Vector op lowering.
llvm-svn: 26438
2006-03-01 01:11:20 +00:00
Evan Cheng b97aab4371 Vector ops lowering.
llvm-svn: 26436
2006-03-01 01:09:54 +00:00
Evan Cheng 91c574b642 New type v2f32.
llvm-svn: 26435
2006-03-01 01:06:22 +00:00
Evan Cheng be85e89ec4 - Added VConstant as an abstract version of ConstantVec.
- All abstrct vector nodes must have # of elements and element type as their
first two operands.

llvm-svn: 26432
2006-03-01 00:51:13 +00:00
Evan Cheng 0e69f45b07 Another entry.
llvm-svn: 26430
2006-02-28 23:38:49 +00:00
Evan Cheng 990c3602bd Don't match x << 1 to LEAL. It's better to emit x + x.
llvm-svn: 26429
2006-02-28 21:13:57 +00:00
Jim Laskey 716edb9754 Add const, volatile, restrict support.
Add array of debug descriptor support.

llvm-svn: 26428
2006-02-28 20:15:07 +00:00
Chris Lattner c5b6c9a12a Fix a regression in a patch from a couple of days ago. This fixes
Transforms/InstCombine/2006-02-28-Crash.ll

llvm-svn: 26427
2006-02-28 19:47:20 +00:00
Chris Lattner b9f35f06bc Add a subtarget feature for the stfiwx instruction. I know the G5 has it,
but I don't know what other PPC impls do.  If someone could update the proc
table, I would appreciate it :)

llvm-svn: 26421
2006-02-28 07:08:22 +00:00
Chris Lattner f0032b350c Compile:
unsigned foo4(unsigned short *P) { return *P & 255; }
unsigned foo5(short *P) { return *P & 255; }

to:

_foo4:
        lbz r3,1(r3)
        blr
_foo5:
        lbz r3,1(r3)
        blr

not:

_foo4:
        lhz r2, 0(r3)
        rlwinm r3, r2, 0, 24, 31
        blr
_foo5:
        lhz r2, 0(r3)
        rlwinm r3, r2, 0, 24, 31
        blr

llvm-svn: 26419
2006-02-28 06:49:37 +00:00
Chris Lattner 872810da6c remove implemented item
llvm-svn: 26418
2006-02-28 06:36:04 +00:00
Chris Lattner bdbc4476d9 Fold "and (LOAD P), 255" -> zextload. This allows us to compile:
unsigned foo3(unsigned *P) { return *P & 255; }
as:
_foo3:
        lbz r3, 3(r3)
        blr

instead of:

_foo3:
        lwz r2, 0(r3)
        rlwinm r3, r2, 0, 24, 31
        blr

and:

unsigned short foo2(float a) { return a; }

as:
_foo2:
        fctiwz f0, f1
        stfd f0, -8(r1)
        lhz r3, -2(r1)
        blr

instead of:

_foo2:
        fctiwz f0, f1
        stfd f0, -8(r1)
        lwz r2, -4(r1)
        rlwinm r3, r2, 0, 16, 31
        blr

llvm-svn: 26417
2006-02-28 06:35:35 +00:00
Chris Lattner 0f8a727c49 fold (sra (sra x, c1), c2) -> (sra x, c1+c2)
llvm-svn: 26416
2006-02-28 06:23:04 +00:00
Chris Lattner b70f141893 Implement rem.ll:test[7-9] and PR712
llvm-svn: 26415
2006-02-28 05:49:21 +00:00
Chris Lattner 2a7c7b8bab Simplify some code now that the RHS of a rem can't be 0
llvm-svn: 26413
2006-02-28 05:40:55 +00:00
Chris Lattner 0de4a8d7b7 Rearrange some code, fold "rem X, 0", implementing rem.ll:test6
llvm-svn: 26411
2006-02-28 05:30:45 +00:00
Chris Lattner 9fed5b6122 Add support for output memory constraints.
llvm-svn: 26410
2006-02-27 23:45:39 +00:00
Jim Laskey 6d5c2a0156 Qualify dwarf namespace inside llvm namespace.
llvm-svn: 26409
2006-02-27 22:37:23 +00:00
Nate Begeman f918ed2e33 readme updates
llvm-svn: 26405
2006-02-27 22:08:36 +00:00
Jim Laskey bc7a3832e8 Partial enabling of functions.
llvm-svn: 26404
2006-02-27 20:37:42 +00:00
Chris Lattner ec185f7843 Don't print constant initializers, they may span lines now.
llvm-svn: 26403
2006-02-27 20:09:23 +00:00
Jim Laskey 72b66d6d8a Supporting multiple compile units.
llvm-svn: 26402
2006-02-27 17:27:12 +00:00
Jim Laskey 22e47b9f4e Re-orging file.
llvm-svn: 26401
2006-02-27 12:43:29 +00:00
Jim Laskey 6be3d8e0df Pretty print large struct constants.
llvm-svn: 26400
2006-02-27 10:33:53 +00:00
Jim Laskey 8f2c1021b4 Removed dependency on how operands are printed (want multi-line.)
llvm-svn: 26399
2006-02-27 10:29:04 +00:00
Chris Lattner c7bfed0f7b Merge two almost-identical pieces of code.
Make this code more powerful by using ComputeMaskedBits instead of looking
for an AND operand.  This lets us fold this:

int %test23(int %a) {
        %tmp.1 = and int %a, 1
        %tmp.2 = seteq int %tmp.1, 0
        %tmp.3 = cast bool %tmp.2 to int  ;; xor tmp1, 1
        ret int %tmp.3
}

into: xor (and a, 1), 1
llvm-svn: 26396
2006-02-27 02:38:23 +00:00
Chris Lattner f5c8a0b83f Fold (A^B) == A -> B == 0
and  (A-B) == A  ->  B == 0

llvm-svn: 26394
2006-02-27 01:44:11 +00:00
Chris Lattner ab8164042a Implement bit propagation through sub nodes, this (re)implements
PowerPC/div-2.ll

llvm-svn: 26392
2006-02-27 01:00:42 +00:00
Chris Lattner 47ee42829d remove some completed notes
llvm-svn: 26390
2006-02-27 00:39:31 +00:00
Chris Lattner a60751dd43 Check RHS simplification before LHS simplification to avoid infinitely looping
on PowerPC/small-arguments.ll

llvm-svn: 26389
2006-02-27 00:36:27 +00:00
Chris Lattner 27220f8958 Just like we use the RHS of an AND to simplify the LHS, use the LHS to
simplify the RHS.  This allows for the elimination of many thousands of
ands from multisource, and compiles CodeGen/PowerPC/and-elim.ll:test2
into this:

_test2:
        srwi r2, r3, 1
        xori r3, r2, 40961
        blr

instead of this:

_test2:
        rlwinm r2, r3, 31, 17, 31
        xori r2, r2, 40961
        rlwinm r3, r2, 0, 16, 31
        blr

llvm-svn: 26388
2006-02-27 00:22:28 +00:00
Chris Lattner 118ddba929 Add a bunch of missed cases. Perhaps the most significant of which is that
assertzext produces zero bits.

llvm-svn: 26386
2006-02-26 23:36:02 +00:00
Chris Lattner f78df7c14d Fold (X|C1)^C2 -> X^(C1|C2) when possible. This implements
InstCombine/or.ll:test23.

llvm-svn: 26385
2006-02-26 19:57:54 +00:00
Jim Laskey 702c1d11b5 Reverting. Didn't realize some developers were embedding constants in their
target assembler code gen.

llvm-svn: 26383
2006-02-26 10:16:05 +00:00
Evan Cheng 877ab55e06 ConstantPoolIndex is now the displacement portion of the address (rather
than base).

llvm-svn: 26382
2006-02-26 09:12:34 +00:00
Evan Cheng 9f9662b86e Print ConstantPoolSDNode offset field.
llvm-svn: 26381
2006-02-26 08:36:57 +00:00
Evan Cheng 75b8783aaf Fixed ConstantPoolIndex operand asm print bug. This fixed 2005-07-17-INT-To-FP
and 2005-05-12-Int64ToFP.

llvm-svn: 26380
2006-02-26 08:28:12 +00:00
Jim Laskey 3bb7874dd3 Format large struct constants for readability.
llvm-svn: 26379
2006-02-25 12:27:03 +00:00
Evan Cheng 77d86ff8fc * Cleaned up addressing mode matching code.
* Cleaned up and tweaked LEA cost analysis code. Removed some hacks.
* Handle ADD $X, c to MOV32ri $X+c. These patterns cannot be autogen'd and
  they need to be matched before LEA.

llvm-svn: 26376
2006-02-25 10:09:08 +00:00
Evan Cheng 1c557bfeb5 Updates.
llvm-svn: 26375
2006-02-25 10:04:07 +00:00
Evan Cheng 1fac3b3360 * Allow mul, shl nodes to be codegen'd as LEA (if appropriate).
* Add patterns to handle GlobalAddress, ConstantPool, etc.
  MOV32ri to materialize these nodes in registers.
  ADD32ri to handle %reg + GA, etc.
  MOV32mi to handle store GA, etc. to memory.

llvm-svn: 26374
2006-02-25 10:02:21 +00:00
Evan Cheng e4a8b74e4f ConstantPoolIndex is now the displacement field of addressing mode.
llvm-svn: 26373
2006-02-25 09:56:50 +00:00
Evan Cheng 994700101e Added a common about the need for X86ISD::Wrapper.
llvm-svn: 26372
2006-02-25 09:55:19 +00:00
Evan Cheng ed169db8a5 Added an offset field to ConstantPoolSDNode.
llvm-svn: 26371
2006-02-25 09:54:52 +00:00
Chris Lattner 7d01f95a57 Fix a bug that Evan exposed with some changes he's making, and that was
exposed with a fastcc problem (breaking pcompress2 on x86 with -enable-x86-fastcc).

When reloading a reused reg, make sure to invalidate the reloaded reg, and
check to see if there are any other pending uses of the same register.

llvm-svn: 26369
2006-02-25 02:17:31 +00:00
Chris Lattner 28a0b8bec7 Remove debugging printout :)
Add a minor compile time win, no codegen change.

llvm-svn: 26368
2006-02-25 02:03:40 +00:00
Chris Lattner 525522e429 Refactor some code from being inline to being out in a new class with methods.
This gets rid of two gotos, which is always nice, and also adds some comments.

No functionality change, this is just a refactor.

llvm-svn: 26367
2006-02-25 01:51:33 +00:00
Evan Cheng 42d5ac557c Fix an obvious bug exposed when we are doing
ADD X, 4
==>
MOV32ri $X+4, ...

llvm-svn: 26366
2006-02-25 01:37:02 +00:00
Chris Lattner 7674d90fa1 Add memory printing support for PPC. Input memory operands now work with
inline asms! :)

llvm-svn: 26365
2006-02-24 20:27:40 +00:00
Chris Lattner 1d08c6534c Use the PrintAsmMemoryOperand to print addressing modes.
llvm-svn: 26364
2006-02-24 20:21:58 +00:00
Chris Lattner 5af3fdec12 Pass all the flags to the asm printer, not just the # operands.
llvm-svn: 26362
2006-02-24 19:50:58 +00:00
Chris Lattner 2f8a794b13 rename NumOps -> NumVals to avoid shadowing a NumOps var in an outer scope.
Add support for addressing modes.

llvm-svn: 26361
2006-02-24 19:18:20 +00:00
Chris Lattner 86c51000db Refactor operand adding out to a new AddOperand method
llvm-svn: 26358
2006-02-24 18:54:03 +00:00
Chris Lattner b580d26e7d Fix a problem that Nate noticed that boils down to an over conservative check
in the code that does "select C, (X+Y), (X-Y) --> (X+(select C, Y, (-Y)))".
We now compile this loop:

LBB1_1: ; no_exit
        add r6, r2, r3
        subf r3, r2, r3
        cmpwi cr0, r2, 0
        addi r7, r5, 4
        lwz r2, 0(r5)
        addi r4, r4, 1
        blt cr0, LBB1_4 ; no_exit
LBB1_3: ; no_exit
        mr r3, r6
LBB1_4: ; no_exit
        cmpwi cr0, r4, 16
        mr r5, r7
        bne cr0, LBB1_1 ; no_exit

into this instead:

LBB1_1: ; no_exit
        srawi r6, r2, 31
        add r2, r2, r6
        xor r6, r2, r6
        addi r7, r5, 4
        lwz r2, 0(r5)
        addi r4, r4, 1
        add r3, r3, r6
        cmpwi cr0, r4, 16
        mr r5, r7
        bne cr0, LBB1_1 ; no_exit

llvm-svn: 26356
2006-02-24 18:05:58 +00:00
Jim Laskey 723d3e0746 Add pointer and reference types. Added short-term code to ignore NULL types
(to allow llvm-gcc4 to build.)

llvm-svn: 26355
2006-02-24 16:46:40 +00:00
Jeff Cohen 83c22e0d75 Get VC++ building again.
llvm-svn: 26351
2006-02-24 02:52:40 +00:00
Chris Lattner dcf785bf46 Implement (most of) selection of inline asm memory operands.
llvm-svn: 26350
2006-02-24 02:13:54 +00:00
Chris Lattner a1ec1ddd59 Implement selection of inline asm memory operands
llvm-svn: 26348
2006-02-24 02:13:12 +00:00
Chris Lattner 7ef7a64ebb Lower C_Memory operands.
llvm-svn: 26346
2006-02-24 01:11:24 +00:00
Chris Lattner 2a9e1e3e74 Recognize memory operand codes
llvm-svn: 26345
2006-02-24 01:10:46 +00:00
Chris Lattner de5a9f4517 Parse the %*# constraint modifiers
llvm-svn: 26341
2006-02-23 23:36:53 +00:00
Jim Laskey e5386d4d98 Added basic support for typedefs.
llvm-svn: 26339
2006-02-23 22:37:30 +00:00
Evan Cheng 0ed48fe601 PPC JIT relocation model should be DynamicNoPIC.
llvm-svn: 26338
2006-02-23 22:18:07 +00:00
Evan Cheng e0ed6ec13f - Clean up the lowering and selection code of ConstantPool, GlobalAddress,
and ExternalSymbol.
- Use C++ code (rather than tblgen'd selection code) to match the above
  mentioned leaf nodes. Do not mutate and nodes and do not record the
  selection in CodeGenMap. These nodes should be safe to duplicate. This is
  a performance win.

llvm-svn: 26335
2006-02-23 20:41:18 +00:00
Chris Lattner e7c0ffb3a0 Fix an endianness problem on big-endian targets with expanded operands
to inline asms.  Mark some methods const.

llvm-svn: 26334
2006-02-23 20:06:57 +00:00
Chris Lattner 1bad2546d0 Implement the PPC inline asm "L" modifier. This allows us to compile:
long long test(long long X) {
  __asm__("foo %0 %L0 %1 %L1" : "=r"(X): "r"(X));
  return X;
}

to:
        foo r2 r3 r2 r3

llvm-svn: 26333
2006-02-23 19:31:10 +00:00
Chris Lattner 571d9647c6 Record all of the expanded registers in the DAG and machine instr, fixing
several bugs in inline asm expanded operands.

llvm-svn: 26332
2006-02-23 19:21:04 +00:00
Jim Laskey 69b9e26186 DwarfWriter reading basic type information from llvm-gcc4 code.
llvm-svn: 26331
2006-02-23 16:58:18 +00:00
Chris Lattner 2988921dc4 Code cleanups, no functionality change
llvm-svn: 26328
2006-02-23 06:44:17 +00:00
Chris Lattner 16f08f53b1 "." isn't enough to get a private label on linux, use ".L".
llvm-svn: 26327
2006-02-23 05:25:02 +00:00
Chris Lattner 2bacf981bf add a small and simple case.
llvm-svn: 26326
2006-02-23 05:17:43 +00:00
Evan Cheng f4448cee66 A couple of new entries.
llvm-svn: 26325
2006-02-23 02:50:21 +00:00
Evan Cheng 1f342c2884 PIC related bug fixes.
1. Various asm printer bug.
2. Lowering bug. Now TargetGlobalAddress is wrapped in X86ISD::TGAWrapper.

llvm-svn: 26324
2006-02-23 02:43:52 +00:00
Evan Cheng 7eabbfd618 X86 codegen tweak to use lea in another case:
Suppose base == %eax and it has multiple uses, then instead of
  movl %eax, %ecx
  addl $8, %ecx
use
  leal 8(%eax), %ecx.

llvm-svn: 26323
2006-02-23 00:13:58 +00:00
Evan Cheng 7714a59d91 Missing .globl for weak / link-once .text symbols.
llvm-svn: 26321
2006-02-22 23:59:57 +00:00
Chris Lattner e5521db5bc Fix Regression/Transforms/LoopUnswitch/2006-02-22-UnswitchCrash.ll, which
caused SPASS to fail building last night.

We can't trivially unswitch a loop if the exit block has phi nodes in it,
because we don't know which predecessor to use.

llvm-svn: 26320
2006-02-22 23:55:00 +00:00
Chris Lattner b1124f3c76 This fixes a couple of problems with expansion
llvm-svn: 26318
2006-02-22 23:09:03 +00:00
Chris Lattner 2e124af406 Don't return registers from register classes that aren't legal.
llvm-svn: 26317
2006-02-22 23:00:51 +00:00
Chris Lattner 6f87d18be9 Change a whole bunch of code to be built around RegsForValue instead of
a single register number.  This fully implements promotion for inline asms,
expand is close but not quite right yet.

llvm-svn: 26316
2006-02-22 22:37:12 +00:00
Evan Cheng 73136dfecc - Added option -relocation-model to set relocation model. Valid values include static, pic,
dynamic-no-pic, and default.
PPC and x86 default is dynamic-no-pic for Darwin, pic for others.
- Removed options -enable-pic and -ppc-static.

llvm-svn: 26315
2006-02-22 20:19:42 +00:00
Jim Laskey 2fa33a989d Coordinate activities with llvm-gcc4 and dwarf.
llvm-svn: 26314
2006-02-22 19:02:11 +00:00
Chris Lattner 8a5a324dac Add some comments, simplify some code, and fix a bug that caused rewriting
to rewrite with the wrong value.

llvm-svn: 26311
2006-02-22 06:37:14 +00:00
Evan Cheng 9e252e3bcf Added MMX, SSE1, and SSE2 vector instructions and some simple patterns.
Fixed some existing bugs (wrong predicates, prefixes) at the same time.

llvm-svn: 26310
2006-02-22 02:26:30 +00:00
Chris Lattner 7ad77dfc2a split register class handling from explicit physreg handling.
llvm-svn: 26308
2006-02-22 00:56:39 +00:00
Chris Lattner 5c79f98f15 Adjust to changes in getRegForInlineAsmConstraint prototype
llvm-svn: 26306
2006-02-21 23:12:12 +00:00
Chris Lattner 7bb4696dc3 Updates to match change of getRegForInlineAsmConstraint prototype
llvm-svn: 26305
2006-02-21 23:11:00 +00:00
Evan Cheng d58478161f One more round of reorg so sabre doesn't freak out. :-)
llvm-svn: 26303
2006-02-21 20:00:20 +00:00
Evan Cheng 6fc1162855 A big more cleaning up.
llvm-svn: 26302
2006-02-21 19:30:30 +00:00
Evan Cheng 8711b6bff3 Moving things to their proper places.
llvm-svn: 26301
2006-02-21 19:26:52 +00:00
Evan Cheng 6e595b9fd8 Split instruction info into multiple files, one for each of x87, MMX, and SSE.
llvm-svn: 26300
2006-02-21 19:13:53 +00:00
Chris Lattner 0a08f44704 missed optzn
llvm-svn: 26299
2006-02-21 18:29:44 +00:00
Chris Lattner 747cf60696 The HasNoV9 hack isn't needed here, now that tblgen knows that CustomDAGSchedInserter
instructions are expensive.

llvm-svn: 26298
2006-02-21 18:04:32 +00:00
Evan Cheng d57203c0a1 Added separate alias instructions for SSE logical ops that operate on non-packed types.
llvm-svn: 26297
2006-02-21 02:24:38 +00:00
Evan Cheng afffe63fc1 Added MMX and XMM packed integer move instructions, movd and movq.
llvm-svn: 26296
2006-02-21 01:39:57 +00:00
Evan Cheng fa57a0add9 Added SSE2 128-bit integer packed types: V16I8, V8I16, V4I32, and V2I64.
Added generic vector types: VR64 and VR128.

llvm-svn: 26295
2006-02-21 01:38:21 +00:00
Evan Cheng 43070b7541 Added x86 integer vector types: 64-bit packed byte integer (v16i8), 64-bit
packed word integer (v8i16), and 64-bit packed doubleword integer (v2i32).

llvm-svn: 26294
2006-02-20 22:34:53 +00:00
Evan Cheng 4547400ae2 Some updates
llvm-svn: 26292
2006-02-20 19:58:27 +00:00
Chris Lattner 301f45cf6f Fix a problem Nate and Duraid reported where simplifying nodes can cause
them to get ressurected, in which case, deleting the undead nodes is
unfriendly.

llvm-svn: 26291
2006-02-20 06:51:04 +00:00
Chris Lattner 486d1bc5ed Fix a problem on itanium with memset. The value to set has been promoted to
i64 before this code, so zero_ext doesn't work.

llvm-svn: 26290
2006-02-20 06:38:35 +00:00
Chris Lattner c2e3a7a4ce improved support for branch folding, still not enabled.
llvm-svn: 26289
2006-02-18 07:57:38 +00:00
Evan Cheng d13778eb30 If SSE3 is available, promote FP_TO_UINT i32 to FP_TO_SINT i64 to take
advantage of fisttpll.

llvm-svn: 26288
2006-02-18 07:26:17 +00:00
Jeff Cohen 0add83e969 Fix bugs identified by VC++.
llvm-svn: 26287
2006-02-18 03:20:33 +00:00
Nate Begeman 983ca89714 Add a fold for add that exchanges it with a constant shift if possible, so
that the shift may be more easily folded into other operations.

llvm-svn: 26286
2006-02-18 02:43:25 +00:00
Chris Lattner 19fa8ac938 Implement deletion of dead blocks, currently disabled.
llvm-svn: 26285
2006-02-18 02:42:34 +00:00
Nate Begeman abac61603f Add checks to make sure we don't create bogus extend nodes, and fix a bug
where we were doing exactly that which was causing failures on x86 and
alpha.

llvm-svn: 26284
2006-02-18 02:40:58 +00:00
Evan Cheng 70af620709 Added fisttp for fp to int conversion.
llvm-svn: 26283
2006-02-18 02:36:28 +00:00
Evan Cheng 06c2e6d1b3 Disable PIC for JIT.
llvm-svn: 26281
2006-02-18 01:49:25 +00:00
Chris Lattner cb853de534 a previous patch completely disabled trivial unswitching, this fixees it.
Thanks to nate for pointing this out :)

llvm-svn: 26280
2006-02-18 01:32:04 +00:00
Chris Lattner 29f771ba21 initial trivial support for folding branches that have now-constant destinations.
llvm-svn: 26279
2006-02-18 01:27:45 +00:00
Evan Cheng 5caed8a231 Jit does not support PIC yet.
llvm-svn: 26278
2006-02-18 00:57:10 +00:00
Chris Lattner 8e44ff50b0 When unswitching a loop, make sure to update loop info with exit blocks in
the right loop.

llvm-svn: 26277
2006-02-18 00:55:32 +00:00
Chris Lattner d95665188b Fix Transforms/SimplifyCFG/2006-02-17-InfiniteUnroll.ll
llvm-svn: 26275
2006-02-18 00:33:17 +00:00
Evan Cheng 5588de9415 x86 / Darwin PIC support.
llvm-svn: 26273
2006-02-18 00:15:05 +00:00
Evan Cheng 5f99760ae7 Moved PICEnabled to include/llvm/Target/TargetOptions.h
llvm-svn: 26272
2006-02-18 00:08:58 +00:00
Chris Lattner 375e1a71cc Fix a tricky issue in the SimplifyDemandedBits code where CombineTo wasn't
exactly the API we wanted to call into.  This fixes the crash on crafty last
night.

llvm-svn: 26269
2006-02-17 21:58:01 +00:00
Nate Begeman fb5dbadf15 Clean up DemandedBitsAreZero interface
Make more use of the new mask helpers in valuetypes.h
Combine (sra (srl x, c1), c1) -> sext_inreg if legal

llvm-svn: 26263
2006-02-17 19:54:08 +00:00
Nate Begeman 57b3567552 Don't expand sdiv by power of two before legalize, since it will likely
generate illegal nodes.

llvm-svn: 26261
2006-02-17 07:26:20 +00:00
Chris Lattner 07a2677e43 unbreak the build
llvm-svn: 26260
2006-02-17 07:09:27 +00:00
Evan Cheng 593bea73ba Unbreak x86 be
llvm-svn: 26259
2006-02-17 07:01:52 +00:00
Chris Lattner baddba41c7 Fix loops where the header has an exit, fixing a loop-unswitch crash on crafty
llvm-svn: 26258
2006-02-17 06:39:56 +00:00
Nate Begeman 5965bd19f8 kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBC
and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.

llvm-svn: 26255
2006-02-17 05:43:56 +00:00
Chris Lattner 9ec392b2aa Fix another miscompilation exposed by lencode, where we lowered i64->f32
conversions to __floatdidf instead of __floatdisf on targets that support
f32 but not i64 (e.g. sparc).

llvm-svn: 26254
2006-02-17 04:32:33 +00:00
Chris Lattner 67c21b6c46 add note about div by power of 2
llvm-svn: 26253
2006-02-17 04:20:13 +00:00
Jeff Cohen 0d62ebd13f Fix bug noticed by VC++.
llvm-svn: 26252
2006-02-17 02:12:18 +00:00
Nate Begeman 3920ce4d8d Whoops, didn't mean to check this in yet.
llvm-svn: 26250
2006-02-17 00:56:19 +00:00
Nate Begeman 4a0dc0c8f6 Add a missing and useful pat frag
llvm-svn: 26249
2006-02-17 00:51:06 +00:00
Chris Lattner 6fd136239b start of some new simplification code, not thoroughly tested, use at your own
risk :)

llvm-svn: 26248
2006-02-17 00:31:07 +00:00
Evan Cheng b590d3a72b Remind ourselves to revisit the "pxor vs. xorps/xorpd to clear XMM registers"
issue. Need to do more experiments.

llvm-svn: 26247
2006-02-17 00:04:28 +00:00
Nate Begeman 7e5496d5fe Kill the x86 pattern isel. boom.
llvm-svn: 26246
2006-02-17 00:03:04 +00:00
Evan Cheng db1dbbe8d6 Remove the entry about using movapd for SSE reg-reg moves.
llvm-svn: 26245
2006-02-17 00:00:58 +00:00
Evan Cheng eb7b3380fd pxor (for FLD0SS) encoding was missing the OpSize prefix.
llvm-svn: 26244
2006-02-16 23:59:30 +00:00
Chris Lattner 936cc9fe53 Remove the skeleton target, it doesn't produce useful code and there are
other small targets that do that can be learned from.  They also have
the added advantage of being tested :)

llvm-svn: 26243
2006-02-16 23:14:50 +00:00
Evan Cheng c3dcf5a4d7 Dumb bug. Code sees a memcpy from X+c so it increments src offset. But it
turns out not to point to a constant string but it forgot change the offset
back.

llvm-svn: 26242
2006-02-16 23:11:42 +00:00
Evan Cheng 24c461b51e 1. Use pxor instead of xoraps / xorapd to clear FR32 / FR64 registers. This
proves to be worth 20% on Ptrdist/ks. Might be related to dependency
   breaking support.
2. Added FsMOVAPSrr and FsMOVAPDrr as aliases to MOVAPSrr and MOVAPDrr. These
   are used for FR32 / FR64 reg-to-reg copies.
3. Tell reg-allocator to generate MOVSSrm / MOVSDrm and MOVSSmr / MOVSDmr to
   spill / restore FsMOVAPSrr and FsMOVAPDrr.

llvm-svn: 26241
2006-02-16 22:45:17 +00:00