915302c605
Make SROA and PredicateSimplifier cope if TargetData is not
...
available. This is very conservative for now.
llvm-svn: 79442
2009-08-19 18:22:18 +00:00
5d5bc6d000
Use hasDefinitiveInitializer() instead of testing the same thing
...
by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.
llvm-svn: 79441
2009-08-19 18:20:44 +00:00
cbfe9b195c
Fix up PHI nodes correctly in the presence of unreachable BBs, part two. Also
...
delete a newed pointer, and improve readability a little bit.
llvm-svn: 79411
2009-08-19 07:16:57 +00:00
9ddc52d5b8
Be more careful when modifying PHI nodes. Patch by Andre Tavares.
...
llvm-svn: 79407
2009-08-19 06:24:33 +00:00
dea2358c68
Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden
...
before performing optimizations based on constant string values.
llvm-svn: 79384
2009-08-19 00:11:12 +00:00
82ac81b1cc
Fix a bug that caused globalopt to miscompile tramp3d: don't miss
...
unruly indices for arrays that are members of structs.
llvm-svn: 79337
2009-08-18 14:58:19 +00:00
10f1471e2f
Make TargetData optional in MemCpyOptimizer.
...
llvm-svn: 79306
2009-08-18 01:17:52 +00:00
9f2b3db428
Make TargetData optional in SimplifyLibCalls.
...
llvm-svn: 79298
2009-08-18 00:48:13 +00:00
90e17e787f
The attached patches attempt to fix cross builds. For example, if you
...
try to use i686-darwin to build for arm-eabi, you'll quickly run into
several false assumptions that the target OS must be the same as the
host OS. These patches split $(OS) into $(HOST_OS) and $(TARGET_OS) to
help builds like "make check" and the test-suite able to cross
compile. Along the way a target of *-unknown-eabi is defined as
"Freestanding" so that TARGET_OS checks have something to work with.
Patch by Sandeep Patel!
llvm-svn: 79296
2009-08-18 00:40:33 +00:00
7cb92a1e3d
Update comments to new-style syntax.
...
llvm-svn: 79263
2009-08-17 18:45:31 +00:00
4c737147e1
Don't crash on critical edge. Patch by Andre Tavares.
...
llvm-svn: 79252
2009-08-17 17:00:57 +00:00
8dd69f88ea
Fix debug output to include a newline after printing a Value, now
...
that Value's operator<< doesn't include one.
llvm-svn: 79240
2009-08-17 15:25:05 +00:00
c4ce58d8fe
Don't access the first element of a potentially empty
...
vector (&Formals[0]). With this change llvm-gcc builds
with expensive checking enabled for C, C++ and Fortran.
While there, change a std::vector into a SmallVector.
This is partly gratuitous, but mostly because not all
STL vector implementations define the data method (and
it should be faster).
llvm-svn: 79237
2009-08-17 14:33:27 +00:00
aa464002f0
Don't crash trying to promote VLAs.
...
llvm-svn: 79226
2009-08-17 05:37:31 +00:00
d56fca4708
Fix for PR3016: detect the tricky case, where there are
...
unfoldable references to a PHI node in the block being folded, and disable
the transformation in that case. The correct transformation of such PHI
nodes depends on whether BB dominates Succ, and dominance is expensive
to compute here. (Alternatively, it's possible to check whether any
uses are live, but that's also essentially a dominance calculation.
Another alternative is to use reg2mem, but it probably isn't a good idea to
use that in simplifycfg.)
Also, remove some incorrect code from CanPropagatePredecessorsForPHIs
which is made unnecessary with this patch: it didn't consider the case
where a PHI node in BB has multiple uses.
llvm-svn: 79174
2009-08-16 04:23:49 +00:00
693a9c57a6
Don't try to get the context from an erased Instruction.
...
llvm-svn: 79134
2009-08-15 21:07:49 +00:00
dd0e74ceee
SSI construction should just go ahead and ignore instructions in unreachable
...
blocks.
llvm-svn: 79132
2009-08-15 20:12:18 +00:00
dbeb33936f
Make TargetData optional in GlobalOpt and ArgumentPromotion.
...
llvm-svn: 78967
2009-08-14 00:11:03 +00:00
a42ac6953b
Actually privatize a IntegerTypes, and fix a few bugs exposed by this.
...
llvm-svn: 78955
2009-08-13 23:27:32 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
...
llvm-svn: 78948
2009-08-13 21:58:54 +00:00
a95379d165
When InstCombine simplifies a load -> extract element to gep -> load, place
...
the new load by the old load instead of by the extract element because
a store could have occurred between the load and extract element.
llvm-svn: 78891
2009-08-13 05:12:13 +00:00
5c2764b3e9
Simplify conditional.
...
llvm-svn: 78889
2009-08-13 03:05:20 +00:00
aef432505b
Simplify and reduce indentation using early exits.
...
No intended functionality change.
llvm-svn: 78888
2009-08-13 03:00:57 +00:00
438ba80afa
DEBUGify some DOUTs.
...
llvm-svn: 78887
2009-08-13 02:45:03 +00:00
177a2f5313
Prune trailing whitespace.
...
llvm-svn: 78886
2009-08-13 02:40:50 +00:00
4ac2f639cd
Transform -X/C to X/-C, implementing a README.txt entry.
...
llvm-svn: 78812
2009-08-12 16:37:02 +00:00
908da3d97e
Optimize (x/C)*C to x if the division is exact.
...
llvm-svn: 78811
2009-08-12 16:33:09 +00:00
43103abef0
Update instcombine's debug output to account for Value*'s operator<<
...
not appending its own newline.
llvm-svn: 78810
2009-08-12 16:28:31 +00:00
5476cfdb15
Remove a bunch more now-unnecessary Context arguments.
...
llvm-svn: 78809
2009-08-12 16:23:25 +00:00
6b490ce4c7
Eliminate a bunch of now unnecessary explicit Context variables.
...
llvm-svn: 78808
2009-08-12 16:04:34 +00:00
117c9e8497
Add contexts to some of the MVT APIs. No functionality change yet, just the infrastructure work needed to get the contexts to where they need to be first.
...
llvm-svn: 78759
2009-08-12 00:36:31 +00:00
dbae4db67a
Optimize exact sdiv by a constant power of 2 to ashr.
...
llvm-svn: 78714
2009-08-11 20:47:47 +00:00
38484ceec9
Remove unnecessary casts.
...
llvm-svn: 78664
2009-08-11 15:15:10 +00:00
c5aa8c6d29
Remove dead metadata.
...
llvm-svn: 78651
2009-08-11 06:31:57 +00:00
53aa7a960c
Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.
...
llvm-svn: 78610
2009-08-10 22:56:29 +00:00
3b5008e23a
More ProfileInfo improvements.
...
- Part of optimal static profiling patch sequence by Andreas Neustifter.
- Store edge, block, and function information separately for each functions
(instead of in one giant map).
- Return frequencies as double instead of int, and use a sentinel value for
missing information.
llvm-svn: 78477
2009-08-08 17:43:09 +00:00
b1106fbdbc
Fix dom frontier update. This fixes PR4667.
...
Patch by Jakub Staszak.
llvm-svn: 78388
2009-08-07 17:16:44 +00:00
a6d0afcb74
Fix a bunch of namespace pollution.
...
llvm-svn: 78363
2009-08-07 01:32:21 +00:00
ae5ead6df4
Use DebugInfoFinder.
...
llvm-svn: 78333
2009-08-06 20:53:06 +00:00
03cb69fbd1
Privatize the StructType table, which unfortunately involves routing contexts through a number of APIs.
...
llvm-svn: 78258
2009-08-05 23:16:16 +00:00
298bce2aa9
Check for !isa<Constant> instead of isa<Instruction>. This
...
matches what the comment says, and it avoids spurious BitCast
instructions for Argument values.
llvm-svn: 78121
2009-08-04 23:23:56 +00:00
f011f5a8a2
Add a new Constant::getIntegerValue helper function, and convert a
...
few places in InstCombine to use it, to fix problems handling pointer
types. This fixes the recent llvm-gcc bootstrap error.
llvm-svn: 78005
2009-08-03 22:07:33 +00:00
cfd3bbe643
Make SimplifyDemandedUseBits generate vector constants where
...
appropriate. Patch per report on llvmdev. No testcase because the
original report didn't come with a testcase, and I can't come up with a case
that actually fails.
llvm-svn: 77986
2009-08-03 19:15:42 +00:00
5a1acd9912
Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are
...
metadata related, which I'm waiting on to avoid conflicting with Devang.
llvm-svn: 77721
2009-07-31 20:28:14 +00:00
ef3ef7f645
Fix GVN's debug output, now that operator<< on Value* doesn't print
...
a trailing newline.
llvm-svn: 77719
2009-07-31 20:24:18 +00:00
2602bb4cdc
- Convert the rest of the DOUTs to DEBUG+errs().
...
- One formatting change.
No intended functionality change.
llvm-svn: 77717
2009-07-31 19:52:24 +00:00
ca9a4f1045
PR4662: Fix a crash introduced by the recent LLVMContext changes.
...
llvm-svn: 77716
2009-07-31 19:36:47 +00:00
23a204d91b
Move getTrue() and getFalse() to 2.5-like APIs.
...
llvm-svn: 77685
2009-07-31 17:39:07 +00:00
b292b8ce70
Move more code back to 2.5 APIs.
...
llvm-svn: 77635
2009-07-30 23:03:37 +00:00
132f78395a
Twines: Don't allow implicit conversion from integers, this is too tricky.
...
llvm-svn: 77605
2009-07-30 17:37:43 +00:00
6afdc5e694
Switch obvious clients to Twine instead of utostr (when they were already using
...
a Twine, e.g., for names).
- I am a little ambivalent about this; we don't want the string conversion of
utostr, but using overload '+' mixed with string and integer arguments is
sketchy. On the other hand, this particular usage is something of an idiom.
llvm-svn: 77579
2009-07-30 04:20:37 +00:00
47d02732e0
Eliminate a few unused-variable warnings
...
llvm-svn: 77519
2009-07-29 22:41:10 +00:00
4056ca9568
Move types back to the 2.5 API.
...
llvm-svn: 77516
2009-07-29 22:17:13 +00:00
98ddd164d8
Fix PR4645 which was fallout from the fix for PR4641.
...
- Call RAUW to delete all instructions (this is a patch from Nick Lewycky).
llvm-svn: 77512
2009-07-29 22:00:43 +00:00
21d75078b5
Remove now unused Context variables.
...
llvm-svn: 77495
2009-07-29 19:14:17 +00:00
487375e9a2
Move ConstantExpr to 2.5 API.
...
llvm-svn: 77494
2009-07-29 18:55:55 +00:00
f82326b984
Bulk erasing instructions without RAUWing them is unsafe. Instead, break them
...
into a new BB that has no predecessors.
llvm-svn: 77433
2009-07-29 05:17:50 +00:00
a4f43fb5dd
Rename MDNode.h header. It defines MDnode and other metadata classes.
...
New name is Metadata.h.
llvm-svn: 77370
2009-07-28 21:49:47 +00:00
4aa3295a65
Return ConstantVector to 2.5 API.
...
llvm-svn: 77366
2009-07-28 21:19:26 +00:00
c2c7932c64
Change ConstantArray to 2.5 API.
...
llvm-svn: 77347
2009-07-28 18:32:17 +00:00
31a9b9880b
Teach instcombine to respect and preserve inbounds. Add inbounds
...
to a few tests where it is required for the expected transformation.
llvm-svn: 77290
2009-07-28 01:40:03 +00:00
38a579fe5a
Fix a small little typo.
...
llvm-svn: 77289
2009-07-28 01:35:34 +00:00
9ba43abc70
Replace dyn_castGetElementPtr with dyn_cast<GEPOperator>.
...
llvm-svn: 77286
2009-07-28 00:37:50 +00:00
a3dcff5900
Grab the LLVMContext and parent Module of SI ahead of the
...
point where SI can get deleted. This fixes a use of free'd memory.
This fixes Externals/Povray.
llvm-svn: 77285
2009-07-28 00:37:06 +00:00
4798763e14
Fix a release-asserts warning. Debug functions should be marked used,
...
if there are no other uses. If people don't need this routine
anymore, if should be deleted.
llvm-svn: 77274
2009-07-27 23:33:34 +00:00
d934cc06c6
Avoid build warnings.
...
llvm-svn: 77271
2009-07-27 23:14:11 +00:00
45308b578b
Move ConstantStruct back to 2.5 API.
...
llvm-svn: 77266
2009-07-27 22:29:26 +00:00
69c464dec4
Move ConstantFP construction back to the 2.5-ish API.
...
llvm-svn: 77247
2009-07-27 20:59:43 +00:00
de6f46c32e
Do not seed mstadata into the value map.
...
llvm-svn: 77208
2009-07-27 17:17:04 +00:00
6115b39ffd
Remove Value::getName{Start,End}, the last of the old Name APIs.
...
llvm-svn: 77152
2009-07-26 09:48:23 +00:00
ca414c7cae
Remove Value::getNameLen
...
llvm-svn: 77148
2009-07-26 08:34:35 +00:00
9813b0b025
Eliminate some uses of DOUT, cerr, and getNameStart().
...
llvm-svn: 77145
2009-07-26 07:49:05 +00:00
e03eecb75f
Remove Value::{isName, getNameRef}.
...
Also, change MDString to use a StringRef.
llvm-svn: 77098
2009-07-25 23:55:21 +00:00
4975db6276
Initial update to VMCore to use Twines for string arguments.
...
- The only meat here is in Value.{h,cpp} the rest is essential 'const
std::string &' -> 'const Twine &'.
llvm-svn: 77048
2009-07-25 04:41:11 +00:00
53e1cd7254
Fix 80-col violations.
...
llvm-svn: 77045
2009-07-25 02:45:27 +00:00
c974225976
Move ExtractElementInst to ::Create instead of new. Update all uses.
...
llvm-svn: 77044
2009-07-25 02:28:41 +00:00
1ddf98ad8e
Convert a few more things to use raw_ostream.
...
llvm-svn: 77039
2009-07-25 01:43:01 +00:00
29f2baf3b3
Convert a few more uses of llvm/Support/Streams.h to raw_ostream.
...
llvm-svn: 77033
2009-07-25 01:13:51 +00:00
43d19d61d4
Make AliasAnalysis and related classes use
...
getAnalysisIfAvailable<TargetData>().
llvm-svn: 77028
2009-07-25 00:48:42 +00:00
0dd5e1ed39
More migration to raw_ostream, the water has dried up around the iostream hole.
...
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
"magic" DOUT behavior which avoided calling printing functions when the
statement was disabled. In addition to being unnecessary magic, it had the
downside of leaving code in -Asserts builds, and of hiding potentially
unnecessary computations.
llvm-svn: 77019
2009-07-25 00:23:56 +00:00
edb4a70325
Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
...
llvm-svn: 77011
2009-07-24 23:12:02 +00:00
85a791ef7a
AliasAnalysis wants sizes in address-units, not bits.
...
llvm-svn: 77009
2009-07-24 23:01:30 +00:00
0b5be94c79
Fix this condition I accidentally inverted.
...
llvm-svn: 76988
2009-07-24 18:31:07 +00:00
67243a4bec
Convert several more passes to use getAnalysisIfAvailable<TargetData>()
...
instead of getAnalysis<TargetData>().
llvm-svn: 76982
2009-07-24 18:13:53 +00:00
796e43eede
Move more to raw_ostream, provide support for writing MachineBasicBlock,
...
LiveInterval, etc to raw_ostream.
llvm-svn: 76965
2009-07-24 10:36:58 +00:00
12368685d8
Switch to getNameStr().
...
llvm-svn: 76962
2009-07-24 08:24:36 +00:00
5bf72e20eb
Convert StringMap to using StringRef for its APIs.
...
- Yay for '-'s and simplifications!
- I kept StringMap::GetOrCreateValue for compatibility purposes, this can
eventually go away. Likewise the StringMapEntry Create functions still follow
the old style.
- NIFC.
llvm-svn: 76888
2009-07-23 18:17:34 +00:00
88ab854873
refactor a blob of code out to a new 'FoldOrOfFCmps' function and
...
simplify it.
llvm-svn: 76866
2009-07-23 05:46:22 +00:00
7d55541e56
Make some existing optimizations that would only trigger on scalars
...
also apply to vectors. This allows us to compile this:
#include <emmintrin.h>
__m128i a(__m128 a, __m128 b) { return a==a & b==b; }
__m128i b(__m128 a, __m128 b) { return a!=a | b!=b; }
to:
_a:
cmpordps %xmm1, %xmm0
ret
_b:
cmpunordps %xmm1, %xmm0
ret
with clang instead of to a ton of horrible code.
llvm-svn: 76863
2009-07-23 05:32:17 +00:00
9085438e4b
refactor a bunch of code out into a helper function,
...
no functionality change.
llvm-svn: 76859
2009-07-23 05:14:02 +00:00
0989a9a338
Remove unnecessary store to temporary std::string.
...
llvm-svn: 76782
2009-07-22 20:46:46 +00:00
315596c39c
Don't give a massive inlining cost bonus to available_externally
...
functions with a single use; eliminating the single use may eliminate
the function from the current module, but usually doesn't eliminate
it from the final program.
llvm-svn: 76730
2009-07-22 08:12:59 +00:00
47db941fd3
Get rid of the Pass+Context magic.
...
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
3666c34db8
Convert instcombine from using using getAnalysis<TargetData> to
...
getAnalysisIfAvailable<TargetData>.
llvm-svn: 76676
2009-07-21 23:21:54 +00:00
c37bc69e91
Rename getConstantInt{True|False} to get{True|False} at Chris' behest.
...
llvm-svn: 76598
2009-07-21 18:03:38 +00:00
d0014cf36d
Update CMake files.
...
llvm-svn: 76595
2009-07-21 17:43:20 +00:00
2ad52176f9
Move a bit more state over to the LLVMContext.
...
llvm-svn: 76533
2009-07-21 02:47:59 +00:00
470a8da807
use ExpandInlineAsm on TargetLowering instead of TargetAsmInfo.
...
llvm-svn: 76442
2009-07-20 17:52:52 +00:00
33a3fd0b9c
Revert the addition of hasNoPointerOverflow to GEPOperator.
...
Getelementptrs that are defined to wrap are virtually useless to
optimization, and getelementptrs that are undefined on any kind
of overflow are too restrictive -- it's difficult to ensure that
all intermediate addresses are within bounds. I'm going to take
a different approach.
Remove a few optimizations that depended on this flag.
llvm-svn: 76437
2009-07-20 17:43:30 +00:00
58f9bb2ccd
implement a new magic global "llvm.compiler.used" which is like llvm.used, but
...
doesn't cause ".no_dead_strip" to be emitted on darwin.
llvm-svn: 76399
2009-07-20 06:14:25 +00:00
a3c6f6bffa
Add plumbing for the `linker_private' linkage type. This type is meant for
...
"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.
This is plumbing, so we don't have a use of it yet. More to come, etc.
llvm-svn: 76385
2009-07-20 01:03:30 +00:00
048e78fc5b
Canonicalize bitcasts between types like <1 x i64> and i64 to
...
insertelement/extractelement.
I'm not entirely sure this is precisely what we want to do: should we
prefer bitcast(insertelement) or insertelement(bitcast)? Similarly. should we
prefer extractelement(bitcast) or bitcast(extractelement)?
llvm-svn: 76345
2009-07-18 23:06:53 +00:00
eb6bcf3462
Back out 76300; apparently the preference is to canonicalize the other
...
way (bitcast -> insert/extractelement).
llvm-svn: 76325
2009-07-18 19:04:16 +00:00
1c71fd646b
add a fixme
...
llvm-svn: 76324
2009-07-18 18:49:04 +00:00
52dbfc21c5
Add combine: X sdiv (1 << Y) -> X udiv (1 << Y) when X doesn't have the
...
sign bit set.
llvm-svn: 76304
2009-07-18 09:53:21 +00:00
992d0e0b74
Remove no-op check.
...
llvm-svn: 76302
2009-07-18 09:21:25 +00:00
44e9836b17
Remove dead check.
...
llvm-svn: 76301
2009-07-18 09:12:15 +00:00
a807aae226
Canonicalize insert/extractelement from single-element vectors into
...
bitcasts.
It would also be possible to canonicalize the other way; does anyone
have a preference?
llvm-svn: 76300
2009-07-18 09:07:47 +00:00
ff9bf97ceb
Fix simplifylibcalls memset recognition to work on 64-bit platforms
...
where int is 32 bits.
llvm-svn: 76293
2009-07-18 08:34:51 +00:00
0d13903563
Replace intersectWith with maximalIntersectWith. The latter guarantees that
...
all values belonging to the intersection will belong to the resulting range.
The former was inconsistent about that point (either way is fine, just pick
one.) This is part of PR4545.
llvm-svn: 76289
2009-07-18 06:34:42 +00:00
e1b9216bc3
Fix the inline cost calculation to take into account instructions
...
which cannot be folded even if they have constant operands. Significantly
helps if_spppsubr.c attached to PR4573.
llvm-svn: 76285
2009-07-18 05:26:06 +00:00
f13b36ddc5
Add line breaks to make the debug output a bit more readable.
...
llvm-svn: 76284
2009-07-18 05:12:58 +00:00
e1019db658
Convert more code to use Operator instead of explicitly handling both
...
ConstantExpr and Instruction. This involves duplicating some code
between GetElementPtrInst and GEPOperator, but it's not a lot.
llvm-svn: 76265
2009-07-17 23:55:56 +00:00
1d548d851a
Make BasicAliasAnalysis and Value::getUnderlyingObject use
...
GEPOperator's hasNoPointer0verflow(), and make a few places in instcombine
that create GEPs that may overflow clear the NoOverflow value. Among
other things, this partially addresses PR2831.
llvm-svn: 76252
2009-07-17 22:25:10 +00:00
a565d4f937
Fix some typos in a comment.
...
llvm-svn: 76249
2009-07-17 22:16:21 +00:00
80ca01c466
Add a new Operator class, for handling Instructions and ConstantExprs
...
in a convenient manner, factoring out some common code from
InstructionCombining and ValueTracking. Move the contents of
BinaryOperators.h into Operator.h and use Operator to generalize them
to support ConstantExprs as well as Instructions.
llvm-svn: 76232
2009-07-17 20:47:02 +00:00
482bd9dcb8
Initialize another Context, in the hopes of unbreaking CBE.
...
llvm-svn: 76184
2009-07-17 16:20:23 +00:00
b8f6a4fc8e
Replace isTrapping with a new, similar method called
...
isSafeToSpeculativelyExecute. The new method is a bit closer to what
the callers actually care about in that it rejects more things callers
don't want. It also adds more precise handling for integer
division, and unifies code for analyzing the legality of a speculative
load.
llvm-svn: 76150
2009-07-17 04:28:42 +00:00
20b34ac794
Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in
...
our current context-passing stuff, which is also fixed here
llvm-svn: 76089
2009-07-16 18:04:31 +00:00
4fdeba9706
Revert yesterday's change by removing the LLVMContext parameter to AllocaInst and MallocInst.
...
llvm-svn: 75863
2009-07-15 23:53:25 +00:00
662da55c5f
Switch invars away from using isTrapping when it really shouldn't be
...
using it.
llvm-svn: 75852
2009-07-15 22:48:29 +00:00
ebe66ab13b
Don't restrict the set of instructions where we try to constant-fold the
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operands; it's possible to end up with a constant-foldable operand to
most instructions, even those which can't trap.
llvm-svn: 75845
2009-07-15 22:13:34 +00:00
b0f8e9960d
Fix indentation.
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llvm-svn: 75723
2009-07-15 01:26:32 +00:00
c43e47938a
Make makeLoopInvariant report whether it made any changes or not,
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and use this to simplify more code.
llvm-svn: 75722
2009-07-15 01:25:43 +00:00
b6b2530000
Move EVER MORE stuff over to LLVMContext.
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llvm-svn: 75703
2009-07-14 23:09:55 +00:00
3be62697df
Revert 75571; I'm convinced this isn't the right thing to do.
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llvm-svn: 75642
2009-07-14 17:48:25 +00:00
fbcc663cbf
llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
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This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").
llvm-svn: 75640
2009-07-14 16:55:14 +00:00
e141364e5c
Require IVUsers after LCSSA, since LCSSA does not preserve IVUsers.
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This results in the pass manager running IVUsers only once for
indvars, instead of twice.
llvm-svn: 75633
2009-07-14 14:26:23 +00:00
14379df4e6
Fix trivial todo in instcombine.
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llvm-svn: 75586
2009-07-14 02:01:53 +00:00
4d6149f356
Update LoopSimplify and LoopUnswitch to use the new makeLoopInvariant
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function.
llvm-svn: 75584
2009-07-14 01:37:59 +00:00
03d5d0f451
Fix indvars to not assume that a loop with a single unique exit
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block has a single unique exiting block.
llvm-svn: 75579
2009-07-14 01:09:02 +00:00
85ae7480d9
Don't delete asm's just because their inputs are undefined;
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xor R, R is a common and valid idiom for zeroing a register, for example.
llvm-svn: 75571
2009-07-14 00:45:38 +00:00
4b95026194
PR4548: optimize zext+udiv+trunc to udiv.
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llvm-svn: 75539
2009-07-13 22:46:01 +00:00
7e1716dc9d
Canonicalize boolean +/- a constant to a select.
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(I think it's reasonably clear that we want to have a canonical form for
constructs like this; if anyone thinks that a select is not the best
canonical form, please tell me.)
llvm-svn: 75531
2009-07-13 22:27:52 +00:00
bb2501bbbe
These don't really need contexts either.
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llvm-svn: 75528
2009-07-13 22:18:28 +00:00
cc85ae132c
Make Loop and MachineLoop be subclasses of LoopBase, rather than typedefs,
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using the Curiously Recurring Template Pattern with LoopBase.
This will help further refactoring, and future functionality for
Loop. Also, Headers can now foward-declare Loop, instead of pulling
in LoopInfo.h or doing tricks.
llvm-svn: 75519
2009-07-13 21:51:15 +00:00
42170b0a9e
Misc simplifications to InstCombiner::commonIntCastTransforms. Most of
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the changes are allowed by not calling this function for bitcasts.
The Instruction::AShr case is dead because
SimplifyDemandedInstructionBits handles that case.
llvm-svn: 75514
2009-07-13 21:45:57 +00:00
7f3a529ae9
Fix comment.
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llvm-svn: 75499
2009-07-13 20:58:59 +00:00
542619e6d5
Move more functionality over to LLVMContext.
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llvm-svn: 75497
2009-07-13 20:58:05 +00:00
f13aa44d4f
Don't bother to call commonIntCastTransforms for bitcasts; int->int
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bitcasts will always be eliminated anyway.
llvm-svn: 75495
2009-07-13 20:53:00 +00:00
53a52215b5
Begin the painful process of tearing apart the rat'ss nest that is Constants.cpp and ConstantFold.cpp.
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This involves temporarily hard wiring some parts to use the global context. This isn't ideal, but it's
the only way I could figure out to make this process vaguely incremental.
llvm-svn: 75445
2009-07-13 04:09:18 +00:00
575db66e1b
Remove check which is duplicated in
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InstCombiner::visitSelectInstWithICmp.
llvm-svn: 75409
2009-07-12 02:00:05 +00:00
2f67295aac
silence a vc++ warning.
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llvm-svn: 75393
2009-07-11 22:31:59 +00:00
56d0659726
assert(0) -> LLVM_UNREACHABLE.
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Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.
llvm-svn: 75379
2009-07-11 20:10:48 +00:00
ccb29cd290
Convert more assert(0)+abort() -> LLVM_UNREACHABLE,
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and abort()/exit() -> llvm_report_error().
llvm-svn: 75363
2009-07-11 13:10:19 +00:00
dcfdce9067
Move a method that creates constant ranges relative to another constant range
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per icmp predicate out of predsimplify and into ConstantRange.
Add another utility method that determines whether one range is a subset of
another. Combine with the former to determine whether icmp pred range, range
is known to be true or not.
llvm-svn: 75357
2009-07-11 06:15:39 +00:00
16e7674f4b
Push LLVMContext through the PatternMatch API.
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llvm-svn: 75255
2009-07-10 17:35:01 +00:00
1e5f00e7a7
This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!?
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llvm-svn: 75200
2009-07-09 23:48:35 +00:00
29fd313e9e
A little bit more LLVMContextification.
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llvm-svn: 75159
2009-07-09 18:36:20 +00:00
ab81d2f5e9
There's no need to consider PHI nodes in the same block as the instruction
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we're inserting sigma/phi functions for. Patch by Andre Tavares.
llvm-svn: 75138
2009-07-09 15:59:27 +00:00
eb373ad2af
Add some statistics to SSI so we can see what it's up to.
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Add an -ssi-everything pass which calls createSSI on everything in the function.
llvm-svn: 75135
2009-07-09 15:33:14 +00:00
a771459bb1
Push LLVMContext _back_ through IRBuilder.
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llvm-svn: 75040
2009-07-08 20:50:47 +00:00
7bb3173ff7
Tell ScalarEvolution to forget a loop before starting to delete it.
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This way ScalarEvolution can examine the loop to determine what state
it needs to update, if it chooses.
llvm-svn: 75029
2009-07-08 19:14:29 +00:00
b17f32945f
Switch GlobalVariable ctors to a sane API, where *either* a context or a module is required.
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llvm-svn: 75025
2009-07-08 19:03:57 +00:00
a21d3daadc
Remove the vicmp and vfcmp instructions. Because we never had a release with
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these instructions, no autoupgrade or backwards compatibility support is
provided.
llvm-svn: 74991
2009-07-08 03:04:38 +00:00
5948fdf68b
Push LLVMContext through GlobalVariables and IRBuilder.
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llvm-svn: 74985
2009-07-08 01:26:06 +00:00
af75234955
Change all SCEV* to SCEV *.
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llvm-svn: 74918
2009-07-07 17:06:11 +00:00
38264b1554
"LLVMContext* " --> "LLVMContext *"
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llvm-svn: 74878
2009-07-06 23:00:19 +00:00
f1f1743b2e
Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API.
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llvm-svn: 74873
2009-07-06 22:37:39 +00:00
39f00cc1d4
Thread LLVMContext through the constant folding APIs, which touches a lot of files.
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llvm-svn: 74844
2009-07-06 18:42:36 +00:00
605a8c743f
More LLVMContext-ification.
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llvm-svn: 74811
2009-07-06 01:34:54 +00:00
e70b637033
More LLVMContext-ification.
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llvm-svn: 74807
2009-07-05 22:41:43 +00:00
bbd8707f6e
Fix build.
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llvm-svn: 74782
2009-07-03 22:11:58 +00:00
340288c621
Even more passes being LLVMContext'd.
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llvm-svn: 74781
2009-07-03 19:42:02 +00:00
cb23509546
Add Static Single Information construction pass written by André Tavares!
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Use it by requiring it through the pass manager, then calling its createSSI
method on the variables that you want in SSI form.
llvm-svn: 74780
2009-07-03 19:28:36 +00:00
29c8efce31
Add newline at end of file.
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llvm-svn: 74773
2009-07-03 15:30:58 +00:00
80baed63b4
Second batch of passes using LLVMContext.
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llvm-svn: 74753
2009-07-03 00:54:20 +00:00
b5618da226
Convert the first batch of passes to use LLVMContext.
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llvm-svn: 74748
2009-07-03 00:17:18 +00:00
f3f6aaa2c3
fix inverted logic pointed out by John McCall, noticed by inspection.
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This was considering vector intrinsics to have cost 2, but non-vector
intrinsics to have cost 1, which is backward.
llvm-svn: 74698
2009-07-02 15:39:39 +00:00
43f33dd550
Fix a bunch of other places that used operator[] to test whether
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a key is present in a std::map or DenseMap to use find instead.
llvm-svn: 74676
2009-07-02 00:17:47 +00:00
cf092389a9
Request LCSSA after LoopSimplify. This fixes a problem in which the
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PassManager was scheduling LCSSA before LoopSimplify, which does not
preserve LCSSA.
llvm-svn: 74661
2009-07-01 23:21:38 +00:00
83348f80b6
Fix an instcombine abort on a scalar-to-vector bitcast. This fixes PR4487.
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llvm-svn: 74646
2009-07-01 21:38:46 +00:00
6773d388aa
Add a pointer to the owning LLVMContext to Module. This requires threading LLVMContext through a lot
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of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools.
Patches for Clang and LLVM-GCC to follow.
llvm-svn: 74614
2009-07-01 16:58:40 +00:00
96122debc1
improve the APIs for creating struct and function types with no arguments/elements
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to not have to create a temporary vector (in the API at least). Patch by Jay Foad!
llvm-svn: 74584
2009-07-01 04:13:31 +00:00
4dfc680059
Minor code simplification.
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llvm-svn: 74491
2009-06-30 01:24:43 +00:00
317f054531
Don't try to split a loop when the controlling icmp instruction
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doesn't have an IV-based operand. This fixes PR4471.
llvm-svn: 74399
2009-06-27 22:58:27 +00:00
ffdcba3dbd
Remove the block from the LoopInfo, rather than just the Loop.
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LoopInfo will handle removing it from the Loop, as well as updating
its own tables.
llvm-svn: 74398
2009-06-27 22:32:36 +00:00
c8ca49659a
Teach LoopSimplify how to merge multiple loop exits into a single exit,
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when one of them can be converted to a trivial icmp and conditional
branch.
This addresses what is essentially a phase ordering problem.
SimplifyCFG knows how to do this transformation, but it doesn't do so
if the primary block has any instructions in it other than an icmp and
a branch. In the given testcase, the block contains other instructions,
however they are loop-invariant and can be hoisted. SimplifyCFG doesn't
have LoopInfo though, so it can't hoist them. And, it's important that
the blocks be merged before LoopRotation, as it doesn't support
multiple-exit loops.
llvm-svn: 74396
2009-06-27 21:30:38 +00:00
8918b481bf
More minor code simplifications.
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llvm-svn: 74395
2009-06-27 21:23:40 +00:00
fe174b6952
When a value is used multiple times within a single PHI, instructions
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inserted to replace that value must dominate all of of the basic
blocks associated with the uses of the value in the PHI, not just
one of them.
llvm-svn: 74376
2009-06-27 05:16:57 +00:00
daafbe6168
Incorporate the insertion point into the key of SCEVExpander's CSE map.
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This helps it avoid reusing an instruction that doesn't dominate all
of the users, in cases where the original instruction was inserted
before all of the users were known. This may result in redundant
expansions of sub-expressions that depend on loop-unpredictable values
in some cases, however this isn't very common, and it primarily impacts
IndVarSimplify, so GVN can be expected to clean these up.
This eliminates the need for IndVarSimplify's FixUsesBeforeDefs,
which fixes several bugs.
llvm-svn: 74352
2009-06-26 22:53:46 +00:00
0f2eb5b9f7
Remove unused routines.
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llvm-svn: 74351
2009-06-26 22:53:22 +00:00
01ad6605c0
Constify this value.
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llvm-svn: 74330
2009-06-26 21:39:56 +00:00
6d94e6a5f3
Fix linking of llvm-ld and lli with CMake, from Xerxes Rånby
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llvm-svn: 74285
2009-06-26 15:37:00 +00:00
0751a28888
Remove debug info anchors - llvm.dbg.compile_units, llvm.dbg.subprograms
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and llvm.dbg.global_variables.
llvm-svn: 74251
2009-06-26 01:49:18 +00:00
ac3b5382b8
Change this code to a form about which VC++ reportedly isn't unhappy.
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llvm-svn: 74243
2009-06-26 00:35:12 +00:00
7eaf50ecac
Fix LCSSA to avoid emitting a PHI node for the unwind destination of
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an invoke instruction, since the value isn't really live across that
edge.
llvm-svn: 74242
2009-06-26 00:31:13 +00:00
31167c61d5
Minor code simplification.
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llvm-svn: 74240
2009-06-26 00:26:03 +00:00
091e440568
Reword a few comments.
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llvm-svn: 74146
2009-06-25 00:22:44 +00:00
929fa7b0f4
When inserting code into a loop preheader, insert it before the
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terminator, instead of after the last phi. This fixes a bug
exposed by ScalarEvolution analyzing more kinds of loops.
This fixes PR4436.
llvm-svn: 74072
2009-06-24 14:31:06 +00:00
f19aeec3f5
Extend ScalarEvolution's multiple-exit support to compute exact
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trip counts in more cases.
Generalize ScalarEvolution's isLoopGuardedByCond code to recognize
And and Or conditions, splitting the code out into an
isNecessaryCond helper function so that it can evaluate Ands and Ors
recursively, and make SCEVExpander be much more aggressive about
hoisting instructions out of loops.
test/CodeGen/X86/pr3495.ll has an additional instruction now, but
it appears to be due to an arbitrary register allocation difference.
llvm-svn: 74048
2009-06-24 01:18:18 +00:00
f522a4e034
Don't emit a redundant BitCastInst if the value to be defined in the
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preheader is already an instruction.
llvm-svn: 74031
2009-06-24 00:28:59 +00:00
fd76113e28
Fix a few minor issues that were exposed by the removal of SCEVHandle.
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llvm-svn: 73910
2009-06-22 22:08:45 +00:00
65b6056e37
SCEVHandle is no more!
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llvm-svn: 73906
2009-06-22 21:39:50 +00:00
78ea89e161
Fix this code to correctly handle loops with multiple exits. Until
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now, this hasn't mattered, because ScalarEvolution hasn't been able
to compute trip counts for loops with multiple exits. But it will
soon.
llvm-svn: 73864
2009-06-22 00:15:15 +00:00
860379bcc2
Rename a variable for consistency with the ExitBlock vs ExitingBlock
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terminology that LoopInfo uses.
llvm-svn: 73863
2009-06-21 23:48:38 +00:00
724f825f96
Fix a typo in a comment that Frits von Bommel noticed.
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llvm-svn: 73796
2009-06-19 23:41:37 +00:00
cc31110b95
Re-apply r73718, now that the fix in r73787 is in, and add a
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hand-crafted testcase which demonstrates the bug that was exposed
in 254.gap.
llvm-svn: 73793
2009-06-19 23:23:27 +00:00
55e3dd9174
Fix LSR's OptimizeSMax to ignore max operators with more than 2 operands,
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which it isn't prepared to handle.
llvm-svn: 73787
2009-06-19 23:03:46 +00:00
86076c9e30
Revert 73718. It's breaking 254.gap.
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llvm-svn: 73783
2009-06-19 21:15:06 +00:00
Dan Gohman