21cea8ac2e
Use const qualifiers with TargetLowering. This eliminates several
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const_casts, and it reinforces the design of the Target classes being
immutable.
SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.
And PIC16's AsmPrinter no longer uses TargetLowering.
llvm-svn: 101635
2010-04-17 15:26:15 +00:00
2104b8d36e
rename llvm::llvm_report_error -> llvm::report_fatal_error
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llvm-svn: 100709
2010-04-07 22:58:41 +00:00
e96503faa1
IT turns out that during jumpless setcc lowering eq and ne were swapped.
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This fixes PR6348
llvm-svn: 96734
2010-02-21 12:28:58 +00:00
ab663a0bfe
Move TLOF implementations to libCodegen to resolve layering violation.
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llvm-svn: 96288
2010-02-15 22:37:53 +00:00
27d044d65d
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96234
2010-02-15 16:56:22 +00:00
9dff9bec31
Uniformize the names of type predicates: rather than having isFloatTy and
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isInteger, we now have isFloatTy and isIntegerTy. Requested by Chris!
llvm-svn: 96223
2010-02-15 16:12:20 +00:00
6f36a083ef
Revert 95130.
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llvm-svn: 95160
2010-02-02 23:55:14 +00:00
c1b0116ff1
Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility.
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llvm-svn: 95130
2010-02-02 21:29:10 +00:00
67a69dd2ed
Eliminate target hook IsEligibleForTailCallOptimization.
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Target independent isel should always pass along the "tail call" property. Change
target hook LowerCall's parameter "isTailCall" into a refernce. If the target
decides it's impossible to honor the tail call request, it should set isTailCall
to false to make target independent isel happy.
llvm-svn: 94626
2010-01-27 00:07:07 +00:00
a6450df92a
zext / truncate is free on msp430. Inform codegen about this.
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llvm-svn: 93556
2010-01-15 21:19:43 +00:00
93a7d026a8
Enable bit tests and setcc stuff.
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llvm-svn: 93552
2010-01-15 21:18:18 +00:00
6826ce7e96
Add micro-optimization which allows us to fold imm into cmp. This allows us to save 1 word (sometimes) and reduce register pressure.
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llvm-svn: 93551
2010-01-15 21:18:02 +00:00
cefa7addc8
Fix cmp emission on msp430: we definitely should turn stuff like
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"icmp lhs, rhs" into "cmp rhs, lhs". This should fix PR5979.
llvm-svn: 93496
2010-01-15 01:29:49 +00:00
abf4ef0ee1
Remove pseudo-MI in custom inserter.
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llvm-svn: 93467
2010-01-14 22:09:11 +00:00
d8f320947f
Implement variable-width shifts.
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No testcase yet - it seems we're exposing generic codegen bugs.
llvm-svn: 91221
2009-12-12 18:55:37 +00:00
e27e028cdd
Lower setcc branchless, if this is profitable.
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Based on the patch by Brian Lucas!
llvm-svn: 91175
2009-12-11 23:01:29 +00:00
24a6316aaa
Some pretty-printing
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llvm-svn: 90742
2009-12-07 02:28:41 +00:00
ff4ab51400
Add lowering of returnaddr and frameaddr intrinsics. Shamelessly stolen from x86 :)
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llvm-svn: 90740
2009-12-07 02:28:10 +00:00
b4be8ce537
Initial codegen support for MSP430 ISRs
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llvm-svn: 90739
2009-12-07 02:27:53 +00:00
28d3c733aa
Add ability to select hw multiplier mode and select appropriate libcalls.
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llvm-svn: 90737
2009-12-07 02:27:08 +00:00
abdf86d2be
Minor optimization: when doing eq/ne comparions and RHS is a constant - swap operands, this will allow us to fold imm into comparison.
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llvm-svn: 89574
2009-11-22 01:14:08 +00:00
a9c7bb724a
Use 2-byte alignment for functions. 4 bytes are clear overkill here.
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llvm-svn: 89572
2009-11-22 01:13:39 +00:00
1fbe054450
Add a bool flag to StackObjects telling whether they reference spill
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slots. The AsmPrinter will use this information to determine whether to
print a spill/reload comment.
Remove default argument values. It's too easy to pass a wrong argument
value when multiple arguments have default values. Make everything
explicit to trap bugs early.
Update all targets to adhere to the new interfaces..
llvm-svn: 87022
2009-11-12 20:49:22 +00:00
cf84ab5043
First try of the post-inc operands handling... Not fully worked, though :(
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llvm-svn: 86386
2009-11-07 17:15:25 +00:00
d3c8319f48
Add some dummy support for post-incremented loads
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llvm-svn: 86385
2009-11-07 17:15:06 +00:00
f93bb39b03
Add 8 bit libcalls and make use of them for msp430
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llvm-svn: 86384
2009-11-07 17:14:39 +00:00
2983dcb1f2
Cosmetic changes, no functionality changes
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llvm-svn: 84773
2009-10-21 19:16:49 +00:00
8759585aba
Revert 84315 for now. Re-thinking the patch.
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llvm-svn: 84321
2009-10-17 07:53:04 +00:00
0818d87ed1
Rename getFixedStack to getStackObject. The stack objects represented are not
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necessarily fixed. Only those will negative frame indices are "fixed."
llvm-svn: 84315
2009-10-17 06:22:26 +00:00
9827ad39a7
Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks.
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llvm-svn: 82311
2009-09-19 09:51:03 +00:00
270d0f986f
Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes.
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Not functionality change yet.
llvm-svn: 82273
2009-09-18 21:02:19 +00:00
68c5f477fa
Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.
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llvm-svn: 80773
2009-09-02 08:44:58 +00:00
a0e01bec87
Add dummy inline asm handling for 'r' constraint. This fixes PR4778
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llvm-svn: 80085
2009-08-26 13:44:29 +00:00
271cdda8e1
Provide dynamic_stackalloc lowering for MSP430.
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This fixes PR4769
llvm-svn: 80001
2009-08-25 17:00:23 +00:00
317dbbcfb1
eliminate uses of cerr()
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llvm-svn: 79834
2009-08-23 07:05:07 +00:00
9f94459d24
Split EVT into MVT and EVT, the former representing _just_ a primitive type, while
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the latter is capable of representing either a primitive or an extended type.
llvm-svn: 78713
2009-08-11 20:47:22 +00:00
53aa7a960c
Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.
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llvm-svn: 78610
2009-08-10 22:56:29 +00:00
f9bbcd1afd
Major calling convention code refactoring.
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Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.
This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.
This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.
llvm-svn: 78142
2009-08-05 01:29:28 +00:00
5e693ed07b
Rip all of the global variable lowering logic out of TargetAsmInfo. Since
...
it is highly specific to the object file that will be generated in the end,
this introduces a new TargetLoweringObjectFile interface that is implemented
for each of ELF/MachO/COFF/Alpha/PIC16 and XCore.
Though still is still a brutal and ugly refactoring, this is a major step
towards goodness.
This patch also:
1. fixes a bunch of dangling pointer problems in the PIC16 backend.
2. disables the TargetLowering copy ctor which PIC16 was accidentally using.
3. gets us closer to xcore having its own crazy target section flags and
pic16 not having to shadow sections with its own objects.
4. fixes wierdness where ELF targets would set CStringSection but not
CStringSection_. Factor the code better.
5. fixes some bugs in string lowering on ELF targets.
llvm-svn: 77294
2009-07-28 03:13:23 +00:00
47db941fd3
Get rid of the Pass+Context magic.
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llvm-svn: 76702
2009-07-22 00:24:57 +00:00
fab6cbe6cd
Oops, accidentally set a legal operation to expand.
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llvm-svn: 76165
2009-07-17 07:34:23 +00:00
6a60a66b2b
Expand misc operations from test/CodeGen/Generic.
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llvm-svn: 76163
2009-07-17 07:28:06 +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
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
0504e0a222
Thread LLVMContext through MVT and related parts of SDISel.
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llvm-svn: 75153
2009-07-09 17:57:24 +00:00
fb8d6d5b58
Implement changes from Chris's feedback.
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Finish converting lib/Target.
llvm-svn: 75043
2009-07-08 20:53:28 +00:00
fa04002254
Convert more abort() calls to llvm_report_error().
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Also remove trailing semicolon.
llvm-svn: 75027
2009-07-08 19:04:27 +00:00
512ff7353e
Update comments to make it clear that the function alignment is the Log2 of the
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bytes and not bytes.
llvm-svn: 74624
2009-07-01 18:50:55 +00:00
31ceb1bcba
Add an "alignment" field to the MachineFunction object. It makes more sense to
...
have the alignment be calculated up front, and have the back-ends obey whatever
alignment is decided upon.
This allows for future work that would allow for precise no-op placement and the
like.
llvm-svn: 74564
2009-06-30 22:38:32 +00:00
6de08cd093
Mark rotl/rotr as expand. This generates pretty ugly code, but this is better than nothing.
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llvm-svn: 71976
2009-05-17 10:16:28 +00:00
6b5523aec2
Typo
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llvm-svn: 71975
2009-05-17 10:15:22 +00:00
ea618dd0ba
Allow 8 bit select in custom inserter
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llvm-svn: 71239
2009-05-08 18:51:21 +00:00
1484cfe945
Expand UREM / SREM into libcalls
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llvm-svn: 71236
2009-05-08 18:50:41 +00:00
47fcd72e24
Make handling of conditional stuff much more straightforward
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llvm-svn: 70767
2009-05-03 13:19:09 +00:00
eb2152f753
Expand divisions into libcalls
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llvm-svn: 70765
2009-05-03 13:18:33 +00:00
29747e9c26
Custom lower SIGN_EXTEND
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llvm-svn: 70763
2009-05-03 13:17:49 +00:00
f3a6bc8562
Add 8bit shifts
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llvm-svn: 70759
2009-05-03 13:16:37 +00:00
61763b532a
Handle logical shift right (at least I hope so :) )
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llvm-svn: 70758
2009-05-03 13:16:17 +00:00
e31559576f
Expand all sorts of indirect branches
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llvm-svn: 70755
2009-05-03 13:15:40 +00:00
ba0e81d4b2
Properly handle ExternalSymbol's
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llvm-svn: 70752
2009-05-03 13:14:46 +00:00
de60d1caef
Expand muls (all mulls!) to libcalls for now
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llvm-svn: 70751
2009-05-03 13:14:25 +00:00
a3f7a83ad8
Add left shift
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llvm-svn: 70747
2009-05-03 13:13:17 +00:00
b6321e15f7
Lower select with custom inserted and make condjumps generic
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llvm-svn: 70744
2009-05-03 13:12:23 +00:00
962720129d
Add first draft for conditions, conditional branches, etc
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llvm-svn: 70743
2009-05-03 13:12:06 +00:00
7212c15e70
Small tweaking
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llvm-svn: 70741
2009-05-03 13:11:35 +00:00
cfc97056e7
Add lowering for global address nodes. Not pretty efficient though.
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llvm-svn: 70730
2009-05-03 13:08:33 +00:00
ec3f0b3f9d
Add call frame setup instruction elimination and lowerid for bunch of call-related stuff.
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llvm-svn: 70728
2009-05-03 13:07:54 +00:00
5613510c81
Add CALL lowering.
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llvm-svn: 70727
2009-05-03 13:07:31 +00:00
ed1c3dfa0f
Add normal and trunc stores
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llvm-svn: 70724
2009-05-03 13:06:26 +00:00
31ecd23a9e
Basic support for mem=>reg moves
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llvm-svn: 70723
2009-05-03 13:06:03 +00:00
b638fb10f5
Add pattern for OR
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llvm-svn: 70720
2009-05-03 13:05:00 +00:00
e32c817d2c
Cleanup
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llvm-svn: 70716
2009-05-03 13:03:50 +00:00
15a515b1af
Add dummy lowering for shifts
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llvm-svn: 70715
2009-05-03 13:03:33 +00:00
55a085b539
We don't have any div at all - thus mark it as expensive
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llvm-svn: 70714
2009-05-03 13:03:14 +00:00
d7afd69e3b
Add code enough for emission of reg-reg and reg-imm moves. This allows us to compile "ret i16 0" properly!
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llvm-svn: 70710
2009-05-03 13:02:04 +00:00
c10f98ace3
Provide set of reserved registers
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llvm-svn: 70704
2009-05-03 13:00:11 +00:00
7bfc3ea2ee
Add proper ISD::RET lowering
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llvm-svn: 70703
2009-05-03 12:59:50 +00:00
3849be6ca1
Add first draft of MSP430 calling convention stuff and draft of ISD::FORMAL_ARGUMENTS node lowering.
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llvm-svn: 70702
2009-05-03 12:59:33 +00:00
101380015c
Dummy MSP430 backend
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llvm-svn: 70694
2009-05-03 12:57:15 +00:00
Dan Gohman