Chandler Carruth
32668ea7a2
Fix some warnings from Clang in release builds:
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lib/CodeGen/RegAllocGreedy.cpp:1176:18: warning: unused variable 'B' [-Wunused-variable]
if (unsigned B = Cand.getBundles(BundleCand, BestCand)) {
^
lib/CodeGen/RegAllocGreedy.cpp:1188:18: warning: unused variable 'B' [-Wunused-variable]
if (unsigned B = Cand.getBundles(BundleCand, 0)) {
^
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 23:07:27 +00:00
Jakub Staszak
0767267790
Fix typo in #include which revealed in the case-sensitive filesystem.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 22:53:41 +00:00
Jakub Staszak
990f78d53b
Use MachineBranchProbabilityInfo in If-Conversion instead of its own heuristics.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136826 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 22:34:43 +00:00
Bill Wendling
2626dba9c5
Remove the LowerSetJmp pass. It wasn't used effectively by any of the targets.
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This is some of my original LLVM code. *wipes tear*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 22:18:20 +00:00
Jakub Staszak
8ea45231dc
Add more constantness in BlockFrequencyInfo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136816 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 21:30:57 +00:00
Eli Friedman
26689ac37e
New approach to r136737: insert the necessary fences for atomic ops in platform-independent code, since a bunch of platforms (ARM, Mips, PPC, Alpha are the relevant targets here) need to do essentially the same thing.
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I think this completes the basic CodeGen for atomicrmw and cmpxchg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136813 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 21:06:02 +00:00
Benjamin Kramer
1488f76ed9
Remove unused variables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136803 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 19:53:48 +00:00
Bob Wilson
cfc55c2fc9
Some revisions to Devang's change r136759 for merged global debug info.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136802 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 19:42:51 +00:00
Andrew Trick
1009c3299b
SCEV: Use AssertingVH to catch dangling BasicBlock* when passes forget
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to notify SCEV of a change. Add forgetLoop in a couple of those places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136797 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 18:32:11 +00:00
Andrew Trick
1c3ff6595f
whitespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136795 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 18:28:21 +00:00
Jakob Stoklund Olesen
56e3232d5a
Handle IMPLICIT_DEF instructions in X86FloatingPoint.
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This fixes PR10575.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136787 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 16:33:19 +00:00
Chris Lattner
fb5179a2fa
fix PR10286, a problem with the .ll printer handling block addresses that are out-of-scope.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136768 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 06:15:41 +00:00
Devang Patel
027cbf9329
Use byte offset, instead of element number, to access merged global.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136759 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 01:25:46 +00:00
Nick Lewycky
dbd2255091
Small cleanups:
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- use SmallVectorImpl& for the function argument.
- ignore the operands on the GEP, even if they aren't constant! Much as we
pretend the malloc succeeds, we pretend that malloc + whatever-you-GEP'd-by
is not null. It's magic!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136757 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 01:11:40 +00:00
Bill Wendling
d0c0d44459
Add this back in for now. There are still a few passes which create unwind instructions at the moment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136756 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 01:07:57 +00:00
Nick Lewycky
d5061a9268
Fix logical error when detecting lifetime intrinsics.
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Don't replace a gep/bitcast with 'undef' because that will form a "free(undef)"
which in turn means "unreachable". What we wanted was a no-op. Instead, analyze
the whole tree and look for all the instructions we need to delete first, then
delete them second, not relying on the use_list to stay consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136752 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 00:43:35 +00:00
Bill Wendling
19308a1ea1
Replace the 'UnwindInst' check with a check for 'ResumeInst', which also exits
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the function, because the UnwindInst is going away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136751 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 00:30:19 +00:00
Jakob Stoklund Olesen
3f5beede1b
Use the precomputed def presence in RAGreedy::calcSpillCost.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136742 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 23:04:08 +00:00
Jakob Stoklund Olesen
5ebca793db
Inform SpillPlacement about blocks with defs.
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This information is not used for anything yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136741 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 23:04:06 +00:00
Jakob Stoklund Olesen
fe62d92b7b
Rename {First,Last}Use to {First,Last}Instr.
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With a 'FirstDef' field right there, it is very confusing that FirstUse
refers to an instruction that may be a def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136739 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:54:14 +00:00
Eli Friedman
989f61e6c0
ARM backend support for atomicrmw and cmpxchg with non-monotonic ordering. Not especially pretty, but seems to work well enough. If this looks okay, I'll put together similar patches for Mips, PPC, and Alpha.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136737 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:44:16 +00:00
Jakob Stoklund Olesen
77ee1140a3
Add a BlockInfo::FirstDef field.
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This is either an invalid SlotIndex, or valno->def for the first value
defined inside the block. PHI values are not counted as defined inside
the block.
The FirstDef field will be used when estimating the cost of spilling
around a block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136736 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:37:22 +00:00
Jakob Stoklund Olesen
4751eb760e
Delete BlockInfo::LiveThrough. It wasn't used any more.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136735 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:37:20 +00:00
Nick Lewycky
d8030c79fd
Teach InstCombine that lifetime intrincs aren't a real user on the result of a
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malloc call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136732 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 22:08:01 +00:00
Jakob Stoklund Olesen
0e0a8806d4
Extend the SpillPlacement interface with two new features.
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The PrefBoth constraint is used for blocks that ideally want a live-in
value both on the stack and in a register. This would be used by a block
that has a use before interference forces a spill.
Secondly, add the ChangesValue flag to BlockConstraint. This tells
SpillPlacement if a live-in value on the stack can be reused as a
live-out stack value for free. If the block redefines the virtual
register, a spill would be required for that.
This extra information will be used by SpillPlacement to more accurately
calculate spill costs when a value can exist both on the stack and in a
register.
The simplest example is a basic block that reads the virtual register,
but doesn't change its value. Spilling around such a block requires a
reload, but no spill in the block.
The spiller already knows this, but the spill placer doesn't. That can
sometimes lead to suboptimal regions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136731 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:53:03 +00:00
Rafael Espindola
c684e83e45
Move methods in PassManagerBuilder offline.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136727 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:50:27 +00:00
Eli Friedman
fe1926e351
Add new atomic instructions to SCCP. No functional change, but stops debug spam.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136723 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:35:16 +00:00
Nick Lewycky
3e69c13c30
Lifetime intrinsics on undef are dead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136722 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:19:27 +00:00
Rafael Espindola
49cb9b8886
Assume .cfi_startproc is the first thing in a function. If the function is
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externally visable, create a local symbol to use in the CFE. If not, use the
function label itself.
Fixes PR10420.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136716 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 20:24:22 +00:00
Eli Friedman
6cdc1f43e6
Don't create a ridiculous EXTRACT_ELEMENT. PR10563.
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The testcase looks extremely fragile, so I'm adding an assertion which should catch any cases like this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136711 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 18:38:35 +00:00
Owen Anderson
96279d0eff
Fix the broken encodings for the VFP vmov.f32 and vmov.f64 instructions, as well as the comments that explain them incorrectly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136707 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 18:30:00 +00:00
Jim Grosbach
b93509d382
Tidy up. 80 columns.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 18:16:36 +00:00
Jim Grosbach
e39389a58d
ARM: rename addrmode7 to addr_offset_none.
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Use a more descriptive name so the code is more self-documenting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136704 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 18:07:32 +00:00
Roman Divacky
c9c0cc1e46
Comment out the PPC relocation offset adjustment. It must be done differently.
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This unbreaks some tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136692 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 16:15:32 +00:00
Bruno Cardoso Lopes
ac5f13fe3f
Make this kind of lowering to be supported by 256-bit instructions:
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shuffle (scalar_to_vector (load (ptr + 4))), undef, <0, 0, 0, 0>
To:
shuffle (vload ptr)), undef, <1, 1, 1, 1>
Fix PR10494
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136691 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 16:06:18 +00:00
Roman Divacky
29630ff214
Remove trailing semicolon.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136690 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 15:54:03 +00:00
Roman Divacky
2c0d69fad0
Sketch out PowerPC ELF writer. This is enough to get clang -integrated-as
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to compile a working hello world on FreeBSD/PPC32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136689 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 15:51:38 +00:00
Bill Wendling
1600525385
Remove the LLVMBuildUnwind C API function.
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The 'unwind' function is going away with the new EH rewrite. This is step 0 in
keeping front-ends from using it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 06:20:17 +00:00
Andrew Trick
fcb4356dee
Use consistent terminology for loop exit/exiting blocks. Name change only.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136677 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 04:23:35 +00:00
Owen Anderson
9b7fdc7e8a
Revert r136503 and r136480 in an effort to fix non-determinism in the llvm-gcc buildbots on i386. Devang is looking into the root cause.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136674 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 02:23:42 +00:00
Nick Lewycky
3207c9a440
Bail from FastISel when we encounter a volatile memset intrinsic. Patch by Ivan
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Krasin!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136663 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 00:40:16 +00:00
Jim Grosbach
02c8460a74
Move imm0_255 to ARMInstrInfo.td with the other immediate predicates.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136656 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 22:02:20 +00:00
Jim Grosbach
b2756afa27
Fix comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136655 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 21:55:12 +00:00
Bruno Cardoso Lopes
55244ceac4
Add v4f64 -> v2f32 fp_round support. Also add a testcase to exercise
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the legalizer. This commit together with the two previous ones fixes
PR10495.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136654 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 21:54:09 +00:00
Bruno Cardoso Lopes
aed890bee0
Teach PreprocessISelDAG to be aware of vector types and to not process them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136653 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 21:54:05 +00:00
Bruno Cardoso Lopes
8af2451679
Lower CONCAT_VECTORS to use two VINSERTF128 instructions instead of
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using a stack store.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136652 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 21:54:02 +00:00
Chandler Carruth
81fd0ba8ab
Actually finish switching to the new system for Target sublibrary
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TableGen deps introduced in r136023. This completes the fixing that
dgregor started in r136621. Sorry for missing these the first time
around.
This should fix some of the random race-condition failures people are
still seeing with CMake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136643 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 19:55:11 +00:00
Bruno Cardoso Lopes
531f19f767
Since vectors with all ones can't be created with a 256-bit instruction,
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avoid returning early for v8i32 types, which would only be valid for
vector with all zeros. Also split the handling of zeros and ones into separate
checking logic since they are handled differently. This fixes PR10547
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136642 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 19:51:53 +00:00
Evan Cheng
8ead80db20
Set endianess and pointer size for PPC Linux. Bug noticed by Roman Divacky.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136639 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 19:43:05 +00:00
Jakub Staszak
b137f16936
Change SmallVector to SmallPtrSet in BranchProbabilityInfo. Handle cases where
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one than one successor goes to the same block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136638 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-01 19:16:26 +00:00