Cameron Zwarich [Wed, 29 Dec 2010 11:49:10 +0000 (11:49 +0000)]
None of the other pass names in CodeGen have terminating periods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122628
91177308-0d34-0410-b5e6-
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Cameron Zwarich [Wed, 29 Dec 2010 11:00:09 +0000 (11:00 +0000)]
Instead of processing every instruction when splitting interferences, only
process those instructions that define phi sources. This is a 47% speedup of
StrongPHIElimination compile time on 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122627
91177308-0d34-0410-b5e6-
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Venkatraman Govindaraju [Wed, 29 Dec 2010 05:37:15 +0000 (05:37 +0000)]
SPARC backend fix: correctly passing arguments through stack
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122626
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Cameron Zwarich [Wed, 29 Dec 2010 04:42:39 +0000 (04:42 +0000)]
Add a missing word to a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122625
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Rafael Espindola [Wed, 29 Dec 2010 04:31:26 +0000 (04:31 +0000)]
Correctly encode pcrel|indirect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122624
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:59:27 +0000 (03:59 +0000)]
CMake: Add disabling optimization on MSVC8 and MSVC10 as workaround for some files in Target/ARM and Target/X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122623
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:59:14 +0000 (03:59 +0000)]
autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming.
Cygwin has stdc++.dll in it's distribution, and we can assume distro's stdc++.dll might be available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122622
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:59:03 +0000 (03:59 +0000)]
autoconf: [PR7874] Add --disable-pthreads to suppress detecting pthreads on certain hosts.
This would be needed to build pthread*.dll-free distribution on recent MinGW-MSYS distros.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122621
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:58:56 +0000 (03:58 +0000)]
test/Transforms/ConstProp/logicaltest.ll: FileCheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122620
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:58:47 +0000 (03:58 +0000)]
test/CodeGen/X86/negative-sin.ll: FileCheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122619
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:58:36 +0000 (03:58 +0000)]
test/CodeGen/X86/fp-in-intregs.ll: FileCheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122618
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Cameron Zwarich [Wed, 29 Dec 2010 03:52:51 +0000 (03:52 +0000)]
Add text explaining an assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122617
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Rafael Espindola [Wed, 29 Dec 2010 02:42:33 +0000 (02:42 +0000)]
Remove second return.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122616
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Rafael Espindola [Wed, 29 Dec 2010 02:30:49 +0000 (02:30 +0000)]
Fix bug when trying to output uint16_t or uint32_t.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122615
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Rafael Espindola [Wed, 29 Dec 2010 01:42:56 +0000 (01:42 +0000)]
Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks
like 6 is a fixed point of that and so the previous tests were OK :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122614
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Chris Lattner [Wed, 29 Dec 2010 01:33:36 +0000 (01:33 +0000)]
fix PR8867: a crash handling fp128. Thanks to Nick for the testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122613
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Rafael Espindola [Wed, 29 Dec 2010 00:26:06 +0000 (00:26 +0000)]
Implement cfi_def_cfa_register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122612
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Rafael Espindola [Wed, 29 Dec 2010 00:09:59 +0000 (00:09 +0000)]
Initial .cfi_offset implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122611
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Cameron Zwarich [Tue, 28 Dec 2010 23:45:38 +0000 (23:45 +0000)]
Simplify some code in MachineVerifier that was doing the correct thing, but not
in the most obvious way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122610
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Rafael Espindola [Tue, 28 Dec 2010 23:38:03 +0000 (23:38 +0000)]
Don't produce a "DW_CFA_advance_loc 0".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122609
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Cameron Zwarich [Tue, 28 Dec 2010 23:02:56 +0000 (23:02 +0000)]
Revert the optimization in r122596. It is correct for all current targets, but
it relies on assumptions that may not be true in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122608
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Venkatraman Govindaraju [Tue, 28 Dec 2010 20:39:17 +0000 (20:39 +0000)]
Multiple SPARC backend fixes: added Y register; updated select_cc, subx, subxcc defs/uses;
and fixed CustomInserter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122607
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Tobias Grosser [Tue, 28 Dec 2010 20:29:31 +0000 (20:29 +0000)]
Integers are primitive types. Update the documentation to state this
This was done for label, void, floating point, x86mmx, metadata,
just not integer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122606
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Chris Lattner [Tue, 28 Dec 2010 18:53:48 +0000 (18:53 +0000)]
simplify this, isBytewiseValue handles the extra check. We still
check for "multiple of a byte" in size to make it clear that the
>> 3 below is safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122604
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Chris Lattner [Tue, 28 Dec 2010 18:45:02 +0000 (18:45 +0000)]
add a note from llvmdev
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122603
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Rafael Espindola [Tue, 28 Dec 2010 18:36:23 +0000 (18:36 +0000)]
Implement .cfi_remember_state and .cfi_restore_state.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122602
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Duncan Sands [Tue, 28 Dec 2010 18:01:19 +0000 (18:01 +0000)]
Clarify that InstructionSimplify only returns values that dominate the
original instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122601
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Duncan Sands [Tue, 28 Dec 2010 18:00:24 +0000 (18:00 +0000)]
Small optimization to speed up replacementPreservesLCSSAForm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122600
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Benjamin Kramer [Tue, 28 Dec 2010 13:52:52 +0000 (13:52 +0000)]
Cast away "comparison between signed and unsigned integer" warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122598
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Benjamin Kramer [Tue, 28 Dec 2010 13:05:13 +0000 (13:05 +0000)]
Fix a signed/unsigned comparison warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122597
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Cameron Zwarich [Tue, 28 Dec 2010 10:49:33 +0000 (10:49 +0000)]
Avoid iterating every operand of an instruction in StrongPHIElimination, since
we are only interested in the defs when discovering interferences.
This is a 28% speedup running StrongPHIElimination on 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122596
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Duncan Sands [Tue, 28 Dec 2010 10:07:15 +0000 (10:07 +0000)]
Pacify the compiler. BestWeight cannot in fact be used uninitialized
in this function, but the compiler was warning that it might be when
doing a release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122595
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Duncan Sands [Tue, 28 Dec 2010 10:02:42 +0000 (10:02 +0000)]
Fix warning about size potentially being used uninitialized
when doing a release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122594
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Duncan Sands [Tue, 28 Dec 2010 09:41:15 +0000 (09:41 +0000)]
Silence gcc warning about an unused variable when doing a release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122593
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Rafael Espindola [Tue, 28 Dec 2010 05:39:27 +0000 (05:39 +0000)]
Relax address updates in the eh_frame section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122591
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Rafael Espindola [Tue, 28 Dec 2010 04:15:37 +0000 (04:15 +0000)]
Start adding basic support for emitting the call frame instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122590
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Michael J. Spencer [Tue, 28 Dec 2010 01:49:21 +0000 (01:49 +0000)]
Support/Path: Deprecate Path::hasMagicNumber and replace all uses with fs::has_magic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122589
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Michael J. Spencer [Tue, 28 Dec 2010 01:49:10 +0000 (01:49 +0000)]
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122588
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Michael J. Spencer [Tue, 28 Dec 2010 01:49:01 +0000 (01:49 +0000)]
Support/PathV2: Implement has_magic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122587
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Cameron Zwarich [Mon, 27 Dec 2010 22:08:42 +0000 (22:08 +0000)]
Change an assertion to assert what the code actually relies upon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122586
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Chris Lattner [Mon, 27 Dec 2010 18:39:08 +0000 (18:39 +0000)]
fix some issues Frits noticed, add AliasAnalysis as a dependency
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122585
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Rafael Espindola [Mon, 27 Dec 2010 15:56:22 +0000 (15:56 +0000)]
Add support for .cfi_lsda.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122584
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Daniel Dunbar [Mon, 27 Dec 2010 14:49:49 +0000 (14:49 +0000)]
MC/Mach-O/Thumb: Select appropriate relocation types for Thumb.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122583
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Cameron Zwarich [Mon, 27 Dec 2010 10:08:19 +0000 (10:08 +0000)]
Land a first cut at StrongPHIElimination. There are only 5 new test failures
when running without the verifier, and I have not yet checked them to see if
the new results are still correct. There are more verifier failures, but they
all seem to be additional occurrences of verifier failures that occur with the
existing PHIElimination pass. There are a few obvious issues with the code:
1) It doesn't properly update the register equivalence classes during copy
insertion, and instead recomputes them before merging live intervals and
renaming registers. I wanted to keep this first patch simple for debugging
purposes, but it shouldn't be very hard to do this.
2) It doesn't mix the renaming and live interval merging with the copy insertion
process, which leads to a lot of virtual register churn. Virtual registers and
live intervals are created, only to later be merged into others. The code should
be smarter and only create a new virtual register if there is no existing
register in the same congruence class.
3) In one place the code uses a DenseMap per basic block, which is unnecessary
heap allocation. There should be an inline storage version of DenseMap.
I did a quick compile-time test of running llc on 403.gcc with and without
StrongPHIElimination. It is slightly slower with StrongPHIElimination, because
the small decrease in the coalescer runtime can't beat the increase in phi
elimination runtime. Perhaps fixing the above performance issues will narrow
the gap.
I also haven't yet run any tests of the quality of the generated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122582
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Cameron Zwarich [Mon, 27 Dec 2010 05:17:23 +0000 (05:17 +0000)]
Add knowledge of phi-def and phi-kill valnos to MachineVerifier's predecessor
valno verification. The "Different value live out of predecessor" check is
incorrect in the case of phi-def valnos, so just skip that check for phi-def
valnos and instead check that all of the valnos for predecessors have phi-kill.
Fixes PR8863.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122581
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Michael J. Spencer [Mon, 27 Dec 2010 03:21:41 +0000 (03:21 +0000)]
Support/PathV1: Deprecate GetRootDirectory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122580
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Rafael Espindola [Mon, 27 Dec 2010 02:03:24 +0000 (02:03 +0000)]
Handle reloc_riprel_4byte_movq_load. Should make the bots happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122579
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Rafael Espindola [Mon, 27 Dec 2010 00:36:05 +0000 (00:36 +0000)]
Add support for the same encodings of the personality function that gnu as
supports.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122577
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Benjamin Kramer [Mon, 27 Dec 2010 00:25:32 +0000 (00:25 +0000)]
BuildLibCalls: Nuke EmitMemCpy, EmitMemMove and EmitMemSet. They are dead and superseded by IRBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122576
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Benjamin Kramer [Mon, 27 Dec 2010 00:16:46 +0000 (00:16 +0000)]
SimplifyLibCalls: Use IRBuilder to simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122575
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Chris Lattner [Mon, 27 Dec 2010 00:03:23 +0000 (00:03 +0000)]
have loop-idiom nuke instructions that feed stores that get removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122574
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Chris Lattner [Sun, 26 Dec 2010 23:42:51 +0000 (23:42 +0000)]
implement enough of the memset inference algorithm to recognize and insert
memsets. This is still missing one important validity check, but this is enough
to compile stuff like this:
void test0(std::vector<char> &X) {
for (std::vector<char>::iterator I = X.begin(), E = X.end(); I != E; ++I)
*I = 0;
}
void test1(std::vector<int> &X) {
for (long i = 0, e = X.size(); i != e; ++i)
X[i] = 0x01010101;
}
With:
$ clang t.cpp -S -o - -O2 -emit-llvm | opt -loop-idiom | opt -O3 | llc
to:
__Z5test0RSt6vectorIcSaIcEE: ## @_Z5test0RSt6vectorIcSaIcEE
## BB#0: ## %entry
subq $8, %rsp
movq (%rdi), %rax
movq 8(%rdi), %rsi
cmpq %rsi, %rax
je LBB0_2
## BB#1: ## %bb.nph
subq %rax, %rsi
movq %rax, %rdi
callq ___bzero
LBB0_2: ## %for.end
addq $8, %rsp
ret
...
__Z5test1RSt6vectorIiSaIiEE: ## @_Z5test1RSt6vectorIiSaIiEE
## BB#0: ## %entry
subq $8, %rsp
movq (%rdi), %rax
movq 8(%rdi), %rdx
subq %rax, %rdx
cmpq $4, %rdx
jb LBB1_2
## BB#1: ## %for.body.preheader
andq $-4, %rdx
movl $1, %esi
movq %rax, %rdi
callq _memset
LBB1_2: ## %for.end
addq $8, %rsp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122573
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Chris Lattner [Sun, 26 Dec 2010 22:57:41 +0000 (22:57 +0000)]
start using irbuilder to make mem intrinsics in a few passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122572
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 26 Dec 2010 22:49:25 +0000 (22:49 +0000)]
add methods to IRBuilder to create memcpy/memset/memmove.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122571
91177308-0d34-0410-b5e6-
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Rafael Espindola [Sun, 26 Dec 2010 22:47:37 +0000 (22:47 +0000)]
Fix .cfi_personality on 32 bit systems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122570
91177308-0d34-0410-b5e6-
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Rafael Espindola [Sun, 26 Dec 2010 21:30:59 +0000 (21:30 +0000)]
Add support for @note. Patch by Jörg Sonnenberger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122568
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 26 Dec 2010 20:45:45 +0000 (20:45 +0000)]
sketch more of this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122567
91177308-0d34-0410-b5e6-
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Rafael Espindola [Sun, 26 Dec 2010 20:20:31 +0000 (20:20 +0000)]
Add basic support for .cfi_personality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122566
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 26 Dec 2010 20:15:01 +0000 (20:15 +0000)]
move isBytewiseValue out to ValueTracking.h/cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122565
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 26 Dec 2010 19:39:38 +0000 (19:39 +0000)]
actually add the file...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122563
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 26 Dec 2010 19:32:44 +0000 (19:32 +0000)]
Start of a pass for recognizing memset and memcpy idioms.
No functionality yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122562
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Sun, 26 Dec 2010 15:23:45 +0000 (15:23 +0000)]
Simplify code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122561
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 26 Dec 2010 12:05:11 +0000 (12:05 +0000)]
fix some sort of weird pasto
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122560
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 26 Dec 2010 03:53:31 +0000 (03:53 +0000)]
add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122559
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 25 Dec 2010 21:36:35 +0000 (21:36 +0000)]
Generalize a previous change, fixing PR8855 - an valid large immediate
rejected by the mc assembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122557
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 25 Dec 2010 20:52:04 +0000 (20:52 +0000)]
don't lose TD info
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122556
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 25 Dec 2010 20:42:38 +0000 (20:42 +0000)]
switch the inliner alignment enforcement stuff to use the
getOrEnforceKnownAlignment function, which simplifies the code
and makes it stronger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122555
91177308-0d34-0410-b5e6-
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Chris Lattner [Sat, 25 Dec 2010 20:37:57 +0000 (20:37 +0000)]
Move getOrEnforceKnownAlignment out of instcombine into Transforms/Utils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122554
91177308-0d34-0410-b5e6-
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Michael J. Spencer [Sat, 25 Dec 2010 20:10:11 +0000 (20:10 +0000)]
Support/PathV1: Deprecate makeAbsolute and remove Unix impl because it annoys people.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122553
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Eric Christopher [Sat, 25 Dec 2010 02:38:01 +0000 (02:38 +0000)]
Header warning patrol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122551
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Benjamin Kramer [Fri, 24 Dec 2010 22:23:59 +0000 (22:23 +0000)]
Fix a thinko pointed out by Frits van Bommel: looking through global variables in isBytewiseValue is not safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122550
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Rafael Espindola [Fri, 24 Dec 2010 21:22:02 +0000 (21:22 +0000)]
Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now
have a single point where targets test if a relocation is needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122549
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Benjamin Kramer [Fri, 24 Dec 2010 21:17:12 +0000 (21:17 +0000)]
MemCpyOpt: Turn memcpys from a constant into a memset if possible.
This allows us to compile "int cst[] = {-1, -1, -1};" into
movl $-1, 16(%rsp)
movq $-1, 8(%rsp)
instead of
movl _cst+8(%rip), %eax
movl %eax, 16(%rsp)
movq _cst(%rip), %rax
movq %rax, 8(%rsp)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122548
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Daniel Dunbar [Fri, 24 Dec 2010 16:41:46 +0000 (16:41 +0000)]
MC/Mach-O/ARM: Start handling some Thumb branches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122547
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Andrew Trick [Fri, 24 Dec 2010 07:10:19 +0000 (07:10 +0000)]
Minor cleanup related to my latest scheduler changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122545
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Andrew Trick [Fri, 24 Dec 2010 06:46:50 +0000 (06:46 +0000)]
Fix a few cases where the scheduler is not checking for phys reg copies. The scheduling node may have a NULL DAG node, yuck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122544
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Jim Grosbach [Fri, 24 Dec 2010 05:06:32 +0000 (05:06 +0000)]
Trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122542
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Andrew Trick [Fri, 24 Dec 2010 05:03:26 +0000 (05:03 +0000)]
Various bits of framework needed for precise machine-level selection
DAG scheduling during isel. Most new functionality is currently
guarded by -enable-sched-cycles and -enable-sched-hazard.
Added InstrItineraryData::IssueWidth field, currently derived from
ARM itineraries, but could be initialized differently on other targets.
Added ScheduleHazardRecognizer::MaxLookAhead to indicate whether it is
active, and if so how many cycles of state it holds.
Added SchedulingPriorityQueue::HasReadyFilter to allowing gating entry
into the scheduler's available queue.
ScoreboardHazardRecognizer now accesses the ScheduleDAG in order to
get information about it's SUnits, provides RecedeCycle for bottom-up
scheduling, correctly computes scoreboard depth, tracks IssueCount, and
considers potential stall cycles when checking for hazards.
ScheduleDAGRRList now models machine cycles and hazards (under
flags). It tracks MinAvailableCycle, drives the hazard recognizer and
priority queue's ready filter, manages a new PendingQueue, properly
accounts for stall cycles, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122541
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Andrew Trick [Fri, 24 Dec 2010 04:28:06 +0000 (04:28 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122539
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Cameron Zwarich [Fri, 24 Dec 2010 03:09:36 +0000 (03:09 +0000)]
Simplify a check for implicit defs and remove a FIXME.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122537
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Kevin Enderby [Fri, 24 Dec 2010 00:12:02 +0000 (00:12 +0000)]
In llvm-mc parse a Hash token as a full line comment. Allows handling of
preprocessed .s files and matches darwin gas. rdar://
8798690
Also fix a comment on the next line of AsmParser.cpp after this new code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122531
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Jim Grosbach [Fri, 24 Dec 2010 00:03:39 +0000 (00:03 +0000)]
Use a StringSwitch<> instead of a manually constructed string matcher.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122530
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Owen Anderson [Thu, 23 Dec 2010 23:56:24 +0000 (23:56 +0000)]
When determining if we can fold (x >> C1) << C2, the bits that we need to verify are zero
are not the low bits of x, but the bits that WILL be the low bits after the operation completes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122529
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Evan Cheng [Thu, 23 Dec 2010 23:54:17 +0000 (23:54 +0000)]
Code clean up. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122528
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Jim Grosbach [Thu, 23 Dec 2010 23:20:13 +0000 (23:20 +0000)]
Remove dead patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122524
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Jim Grosbach [Thu, 23 Dec 2010 23:19:54 +0000 (23:19 +0000)]
Recognize a few more documented register name aliases for ARM in the asm lexer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122523
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Bob Wilson [Thu, 23 Dec 2010 22:45:49 +0000 (22:45 +0000)]
Radar
8803471: Fix expansion of ARM BCCi64 pseudo instructions.
If the basic block containing the BCCi64 (or BCCZi64) instruction ends with
an unconditional branch, that branch needs to be deleted before appending
the expansion of the BCCi64 to the end of the block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122521
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Oscar Fuentes [Thu, 23 Dec 2010 21:27:22 +0000 (21:27 +0000)]
Do not re-test for the existence of pthread.h.
It was causing problems on the MinGW build. See PR8849.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122518
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Torok Edwin [Thu, 23 Dec 2010 21:22:09 +0000 (21:22 +0000)]
XFAIL vg_leak the new test as the rest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122517
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Owen Anderson [Thu, 23 Dec 2010 20:57:35 +0000 (20:57 +0000)]
It is possible for SimplifyCFG to cause PHI nodes to become redundant too late in the optimization
pipeline to be caught by instcombine, and it's not feasible to catch them in SimplifyCFG because the
use-lists are in an inconsistent state at the point where it could know that it need to simplify them.
Instead, have CodeGenPrepare look for trivially redundant PHIs as part of its general cleanup effort.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122516
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Chris Lattner [Thu, 23 Dec 2010 18:28:41 +0000 (18:28 +0000)]
Flag -> Glue, the ongoing saga
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122513
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Chris Lattner [Thu, 23 Dec 2010 17:24:32 +0000 (17:24 +0000)]
flags -> glue for selectiondag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122509
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Chris Lattner [Thu, 23 Dec 2010 17:13:18 +0000 (17:13 +0000)]
sdisel flag -> glue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122507
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Chris Lattner [Thu, 23 Dec 2010 17:03:20 +0000 (17:03 +0000)]
continue renaming flag -> glue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122506
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Torok Edwin [Thu, 23 Dec 2010 15:49:26 +0000 (15:49 +0000)]
Fix OCaml bindings crash, PR8847.
See http://caml.inria.fr/mantis/view.php?id=4166
If we call only external functions from a module, then its 'let _' bindings
don't get executed, which means that the exceptions don't get registered for use
in the C code.
This in turn causes llvm_raise to call raise_with_arg() with a NULL pointer and
cause a segmentation fault.
The workaround is to declare all 'external' functions as 'val' in these .mli
files.
Also added a separate testcase (the testcase must call only external functions
for the bug to occur).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122497
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Benjamin Kramer [Thu, 23 Dec 2010 15:32:07 +0000 (15:32 +0000)]
Remove/fix invalid README entries. The well thought out strcpy function doesn't return a pointer to the end of the string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122496
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Benjamin Kramer [Thu, 23 Dec 2010 15:07:02 +0000 (15:07 +0000)]
Remove some obsolete README items, add a new one off the top of my head.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122495
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Andrew Trick [Thu, 23 Dec 2010 05:42:20 +0000 (05:42 +0000)]
Reorganize ListScheduleBottomUp in preparation for modeling machine cycles and instruction issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122491
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Andrew Trick [Thu, 23 Dec 2010 04:16:14 +0000 (04:16 +0000)]
Converted LiveRegCycles to LiveRegGens. It's easier to work with and allows multiple nodes per cycle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122474
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Andrew Trick [Thu, 23 Dec 2010 03:43:21 +0000 (03:43 +0000)]
In CheckForLiveRegDef use TRI->getOverlaps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122473
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