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Matt Arsenault [Sat, 15 Aug 2015 00:53:06 +0000 (00:53 +0000)]
LoopStrengthReduce: Try to pass address space to isLegalAddressingMode
This seems to only work some of the time. In some situations,
this seems to use a nonsensical type and isn't actually aware of the
memory being accessed. e.g. if branch condition is an icmp of a pointer,
it checks the addressing mode of i1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245137
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Matt Arsenault [Sat, 15 Aug 2015 00:12:39 +0000 (00:12 +0000)]
AMDGPU/SI: Fix printing useless info with amdhsa
The comments at the bottom would all report 0 if
amdhsa was used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245135
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Matt Arsenault [Sat, 15 Aug 2015 00:12:37 +0000 (00:12 +0000)]
AMDGPU/SI: Update LiveVariables
This is simple but won't work if/when this pass
is moved to be post-SSA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245134
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Matt Arsenault [Sat, 15 Aug 2015 00:12:35 +0000 (00:12 +0000)]
AMDGPU/SI: Update LiveIntervals during SIFixSGPRLiveRanges
Does not mark SlotIndexes as reserved, although I think
that might be OK.
LiveVariables still need to be handled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245133
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Matt Arsenault [Sat, 15 Aug 2015 00:12:32 +0000 (00:12 +0000)]
AMDGPU: Remove unnecessary assert
These shouldn't ever be null. The number of successors
was already asserted to be 2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245132
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Matt Arsenault [Sat, 15 Aug 2015 00:12:30 +0000 (00:12 +0000)]
AMDGPU/SI: Make comments more precise.
True branch instructions do behave as expected with liveness.
Avoid the phrasing "branch decision is based on a value in an SGPR"
because this could be misleading. A VALU compare instruction's
result is still based on an SGPR, even though that condition
may be divergent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245131
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Sanjay Patel [Fri, 14 Aug 2015 23:03:01 +0000 (23:03 +0000)]
make current codegen visible in the checks, so we can decide if it's right
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245120
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Nick Lewycky [Fri, 14 Aug 2015 22:46:49 +0000 (22:46 +0000)]
Fix a crash where a utility function wasn't aware of fcmp vectors and created a value with the wrong type. Fixes PR24458!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245119
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Bjarke Hammersholt Roune [Fri, 14 Aug 2015 22:45:26 +0000 (22:45 +0000)]
[SCEV] Apply NSW and NUW flags via poison value analysis for sub, mul and shl
Summary:
http://reviews.llvm.org/D11212 made Scalar Evolution able to propagate NSW and NUW flags from instructions to SCEVs for add instructions. This patch expands that to sub, mul and shl instructions.
This change makes LSR able to generate pointer induction variables for loops like these, where the index is 32 bit and the pointer is 64 bit:
for (int i = 0; i < numIterations; ++i)
sum += ptr[i - offset];
for (int i = 0; i < numIterations; ++i)
sum += ptr[i * stride];
for (int i = 0; i < numIterations; ++i)
sum += ptr[3 * (i << 7)];
Reviewers: atrick, sanjoy
Subscribers: sanjoy, majnemer, hfinkel, llvm-commits, meheff, jingyue, eliben
Differential Revision: http://reviews.llvm.org/D11860
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245118
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Pat Gavlin [Fri, 14 Aug 2015 22:41:43 +0000 (22:41 +0000)]
Add a target environment for CoreCLR.
Although targeting CoreCLR is similar to targeting MSVC, there are
certain important differences that the backend must be aware of
(e.g. differences in stack probes, EH, and library calls).
Differential Revision: http://reviews.llvm.org/D11012
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245115
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Sanjay Patel [Fri, 14 Aug 2015 22:10:59 +0000 (22:10 +0000)]
make current codegen visible in the checks, so we can decide if it's right
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245108
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Ahmed Bougacha [Fri, 14 Aug 2015 22:06:05 +0000 (22:06 +0000)]
[AArch64] Fix FMLS scalar-indexed-from-2s-after-neg patterns.
We canonicalize V64 vectors to V128 through insert_subvector: the other
FMLA/FMLS/FMUL/FMULX patterns match that already, but this one doesn't,
so we'd fail to match fmls and generate fneg+fmla instead.
The vector equivalents are already tested and functional.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245107
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Evgeniy Stepanov [Fri, 14 Aug 2015 22:03:50 +0000 (22:03 +0000)]
[msan] Fix handling of musttail calls.
MSan instrumentation for return values of musttail calls is not
allowed by the IR constraints, and not needed at the same time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245106
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Alexei Starovoitov [Fri, 14 Aug 2015 22:00:45 +0000 (22:00 +0000)]
[bpf] add documentation and instruction set description
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245105
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Alex Lorenz [Fri, 14 Aug 2015 21:55:58 +0000 (21:55 +0000)]
MIR Serialization: Serialize the '.cfi_same_value' CFI directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245103
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Alex Lorenz [Fri, 14 Aug 2015 21:14:50 +0000 (21:14 +0000)]
MIR Serialization: Serialize the external symbol call entry pseudo source
values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245098
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Alex Lorenz [Fri, 14 Aug 2015 21:08:30 +0000 (21:08 +0000)]
MIR Serialization: Serialize the global value call entry pseudo source values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245097
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Michael Kruse [Fri, 14 Aug 2015 20:20:00 +0000 (20:20 +0000)]
[RegionInfo] Remove unused and broken function splitBlock
Summary:
It always makes NewBB the entry of the region instead of OldBB. This breaks if there are edges from inside the region to OldBB. OldBB is moved out of the region and hence there are exiting edges to OldBB and the region's exit block, contradicting the single-exit condition for regions.
The only use from Polly is going to be removed, hence I propose to remove the function completely.
Reviewers: grosser
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11873
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245092
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Tom Stellard [Fri, 14 Aug 2015 19:46:05 +0000 (19:46 +0000)]
AMDGPU/SI: Add missing spill class
The compiler was failing to spill for some shaders.
Patch By: Axel Davy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245087
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Renato Golin [Fri, 14 Aug 2015 19:35:47 +0000 (19:35 +0000)]
Revert "[ARM] Fix MachO CPU Subtype selection"
This reverts commit r245081, as it breaks many builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245086
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Alex Lorenz [Fri, 14 Aug 2015 19:07:07 +0000 (19:07 +0000)]
MIR Serialization: Serialize the 'internal' register operand flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245085
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Alex Lorenz [Fri, 14 Aug 2015 18:57:24 +0000 (18:57 +0000)]
MIR Serialization: Serialize the bundled machine instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245082
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Vedant Kumar [Fri, 14 Aug 2015 18:36:47 +0000 (18:36 +0000)]
[ARM] Fix MachO CPU Subtype selection
This patch makes the Darwin ARM backend take advantage of TargetParser. It
also teaches TargetParser about ARMV7K for the first time. This makes target
triple parsing more consistent across llvm.
Differential Revision: http://reviews.llvm.org/D11996
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245081
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Sanjay Patel [Fri, 14 Aug 2015 17:53:40 +0000 (17:53 +0000)]
[x86] fix allowsMisalignedMemoryAccess() implementation
This patch fixes the x86 implementation of allowsMisalignedMemoryAccess() to correctly
return the 'Fast' output parameter for 32-byte accesses. To test that, an existing load
merging optimization is changed to use the TLI hook. This exposes a shortcoming in the
current logic and results in the regression test update. Changing other direct users of
the isUnalignedMem32Slow() x86 CPU attribute would be a follow-on patch.
Without the fix in allowsMisalignedMemoryAccesses(), we will infinite loop when targeting
SandyBridge because LowerINSERT_SUBVECTOR() creates 32-byte loads from two 16-byte loads
while PerformLOADCombine() splits them back into 16-byte loads.
Differential Revision: http://reviews.llvm.org/D10662
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245075
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Vedant Kumar [Fri, 14 Aug 2015 17:42:50 +0000 (17:42 +0000)]
[test] Testing write access to llvm
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245074
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Justin Bogner [Fri, 14 Aug 2015 17:03:45 +0000 (17:03 +0000)]
[sancov] Fix an unused variable warning introduced in r245067
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245072
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Kit Barton [Fri, 14 Aug 2015 16:54:32 +0000 (16:54 +0000)]
Reverting patch r244235.
This patch will be redone in a different way. See
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-
20150810/292978.html
for more details.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245071
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Reid Kleckner [Fri, 14 Aug 2015 16:48:34 +0000 (16:48 +0000)]
[cmake] Start adding support for LLVM_USE_SANITIZER=Address on Windows
Pass "-fsanitize=address" to the compiler and "-debug" to the linker.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245070
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Reid Kleckner [Fri, 14 Aug 2015 16:45:42 +0000 (16:45 +0000)]
[sancov] Leave llvm.localescape in the entry block
Summary: Similar to the change we applied to ASan. The same test case works.
Reviewers: samsonov
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11961
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245067
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Chad Rosier [Fri, 14 Aug 2015 16:34:15 +0000 (16:34 +0000)]
Cleanup test whitespace or lack thereof. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245065
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Chris Bieneman [Fri, 14 Aug 2015 16:20:31 +0000 (16:20 +0000)]
[CMake] Fix PR14200, llvm-config output misses -fno-rtti
This change adds RTTI and Exception flags to llvm-config's cxxflags. This solution is a minimal patch to solve the issue, and is recommended for the 3.7 release branch. Tom Stellard's outstanding work is the longer term solution.
Patch By: David Wiberg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245064
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Rafael Espindola [Fri, 14 Aug 2015 15:48:41 +0000 (15:48 +0000)]
Revert "Centralize the information about which object format we are using."
This reverts commit r245047.
It was failing on the darwin bots. The problem was that when running
./bin/llc -march=msp430
llc gets to
if (TheTriple.getTriple().empty())
TheTriple.setTriple(sys::getDefaultTargetTriple());
Which means that we go with an arch of msp430 but a triple of
x86_64-apple-darwin14.4.0 which fails badly.
That code has to be updated to select a triple based on the value of
march, but that is not a trivial fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245062
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Davide Italiano [Fri, 14 Aug 2015 15:16:37 +0000 (15:16 +0000)]
Convert tests under MC/ELF from macho-dump to llvm-readobj.
Yet another step towards deprecating macho-dump.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245059
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Sanjay Patel [Fri, 14 Aug 2015 15:11:42 +0000 (15:11 +0000)]
don't repeaat function names in comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245058
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Rafael Espindola [Fri, 14 Aug 2015 13:31:17 +0000 (13:31 +0000)]
Centralize the information about which object format we are using.
Other than some places that were handling unknown as ELF, this should
have no change. The test updates are because we were detecting
arm-coff or x86_64-win64-coff as ELF targets before.
It is not clear if the enum should live on the Triple. At least now it lives
in a single location and should be easier to move somewhere else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245047
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James Molloy [Fri, 14 Aug 2015 11:09:09 +0000 (11:09 +0000)]
Separate out BDCE's analysis into a separate DemandedBits analysis.
This allows other areas of the compiler to use BDCE's bit-tracking.
NFCI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245039
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Simon Pilgrim [Fri, 14 Aug 2015 11:03:31 +0000 (11:03 +0000)]
Renamed min tests (typo)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245038
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James Molloy [Fri, 14 Aug 2015 09:08:50 +0000 (09:08 +0000)]
[AArch64] FMINNAN/FMAXNAN on f16 is not legal.
Spotted by Ahmed - in r244594 I inadvertently marked f16 min/max as legal.
I've reverted it here, and marked min/max on scalar f16's as promote. I've also added a testcase. The test just checks that the compiler doesn't fall over - it doesn't create fmin nodes for f16 yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245035
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Chandler Carruth [Fri, 14 Aug 2015 08:39:32 +0000 (08:39 +0000)]
[PM/AA] Remove two no-op overridden functions that just delegated to the
base class anyways.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245034
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Adam Nemet [Fri, 14 Aug 2015 06:30:26 +0000 (06:30 +0000)]
[LVer] Remove unused Pass parameter from versionLoop, NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245032
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Lang Hames [Fri, 14 Aug 2015 06:26:42 +0000 (06:26 +0000)]
[RuntimeDyld] Make sure code-sections aren't under-aligned.
Code-section alignment should be at least as high as the minimum
stub alignment. If the section alignment is lower it can cause
padding to be emitted resulting in alignment errors if the section
is mapped to a higher alignment on the target.
E.g. If a text section with a 4-byte alignment gets 4-bytes of
padding to guarantee 8-byte alignment for stubs but is re-mapped to
an 8-byte alignment on the target, the 4-bytes of padding will push
the stubs to 4-byte alignment causing a crash.
No test case: There is currently no way to control host section
alignment in llvm-rtdyld. This could be made testable by adding
a custom memory manager. I'll look at that in a follow-up patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245031
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David Majnemer [Fri, 14 Aug 2015 05:09:07 +0000 (05:09 +0000)]
[IR] Add token types
This introduces the basic functionality to support "token types".
The motivation stems from the need to perform operations on a Value
whose provenance cannot be obscured.
There are several applications for such a type but my immediate
motivation stems from WinEH. Our personality routine enforces a
single-entry - single-exit regime for cleanups. After several rounds of
optimizations, we may be left with a terminator whose "cleanup-entry
block" is not entirely clear because control flow has merged two
cleanups together. We have experimented with using labels as operands
inside of instructions which are not terminators to indicate where we
came from but found that LLVM does not expect such exotic uses of
BasicBlocks.
Instead, we can use this new type to clearly associate the "entry point"
and "exit point" of our cleanup. This is done by having the cleanuppad
yield a Token and consuming it at the cleanupret.
The token type makes it impossible to obscure or otherwise hide the
Value, making it trivial to track the relationship between the two
points.
What is the burden to the optimizer? Well, it turns out we have already
paid down this cost by accepting that there are certain calls that we
are not permitted to duplicate, optimizations have to watch out for
such instructions anyway. There are additional places in the optimizer
that we will probably have to update but early examination has given me
the impression that this will not be heroic.
Differential Revision: http://reviews.llvm.org/D11861
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245029
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Karthik Bhat [Fri, 14 Aug 2015 04:17:23 +0000 (04:17 +0000)]
Add support for cross block dse.
This patch enables dead stroe elimination across basicblocks.
Example:
define void @test_02(i32 %N) {
%1 = alloca i32
store i32 %N, i32* %1
store i32 10, i32* @x
%2 = load i32, i32* %1
%3 = icmp ne i32 %2, 0
br i1 %3, label %4, label %5
; <label>:4
store i32 5, i32* @x
br label %7
; <label>:5
%6 = load i32, i32* @x
store i32 %6, i32* @y
br label %7
; <label>:7
store i32 15, i32* @x
ret void
}
In the above example dead store "store i32 5, i32* @x" is now eliminated.
Differential Revision: http://reviews.llvm.org/D11143
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245025
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Chandler Carruth [Fri, 14 Aug 2015 03:57:00 +0000 (03:57 +0000)]
[PM/AA] Run clang-format over the ObjCARC Alias Analysis code to
normalize its formatting before I make more substantial changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245024
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Chandler Carruth [Fri, 14 Aug 2015 03:55:36 +0000 (03:55 +0000)]
[PM/AA] Don't bother forward declaring Function and Value, just include
their headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245023
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Saleem Abdulrasool [Fri, 14 Aug 2015 03:48:35 +0000 (03:48 +0000)]
PowerPC: remove dead initialization (NFC)
Identified by the clang static analyzer. No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245022
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Chandler Carruth [Fri, 14 Aug 2015 03:48:20 +0000 (03:48 +0000)]
[PM/AA] Extract the interface for GlobalsModRef into a header along with
its creation function.
This required shifting a bunch of method definitions to be out-of-line
so that we could leave most of the implementation guts in the .cpp file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245021
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Chandler Carruth [Fri, 14 Aug 2015 03:33:48 +0000 (03:33 +0000)]
[PM/AA] Hoist the interface to TBAA into a dedicated header along with
its creation function. Update the relevant includes accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245019
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Chandler Carruth [Fri, 14 Aug 2015 03:26:15 +0000 (03:26 +0000)]
[PM/AA] Run clang-format over TBAA code to normalize the formatting
before making substantial changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245017
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Chandler Carruth [Fri, 14 Aug 2015 03:16:11 +0000 (03:16 +0000)]
[PM/AA] Remove a stray #include that snuck in via copy/paste when
creating this header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245016
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Chandler Carruth [Fri, 14 Aug 2015 03:14:50 +0000 (03:14 +0000)]
[PM/AA] Clean up the SCEV-AA comment formatting and typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245015
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Chandler Carruth [Fri, 14 Aug 2015 03:12:16 +0000 (03:12 +0000)]
[PM/AA] Run clang-format over the SCEV-AA code to normalize the
formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245014
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Chandler Carruth [Fri, 14 Aug 2015 03:11:16 +0000 (03:11 +0000)]
[PM/AA] Hoist the SCEV-AA interface to its own header and pull the
creation function into that header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245013
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Chandler Carruth [Fri, 14 Aug 2015 02:55:50 +0000 (02:55 +0000)]
[PM/AA] Hoist ScopedNoAliasAA's interface into a header and move the
creation function there.
Same basic refactoring as the other alias analyses. Nothing special
required this time around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245012
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Chandler Carruth [Fri, 14 Aug 2015 02:50:34 +0000 (02:50 +0000)]
[PM/AA] Hoist the value handle definition for CFLAA into the header to
satisfy libc++'s std::forward_list which requires the value type to be
complete.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245011
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Chandler Carruth [Fri, 14 Aug 2015 02:46:07 +0000 (02:46 +0000)]
[PM/AA] Run clang-format over the ScopedNoAliasAA pass prior to making
substantial changes to normalize any formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245010
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Chandler Carruth [Fri, 14 Aug 2015 02:42:20 +0000 (02:42 +0000)]
[PM/AA] Extract a minimal interface for CFLAA to its own header file.
I've used forward declarations and reorderd the source code some to make
this reasonably clean and keep as much of the code as possible in the
source file, including all the stratified set details. Just the basic AA
interface and the create function are in the header file, and the header
file is now included into the relevant locations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245009
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Chandler Carruth [Fri, 14 Aug 2015 02:16:12 +0000 (02:16 +0000)]
[PM/AA] Delete two pointlessly overridden methods on the AA interface by
the AA counter pass.
For pointsToConstantMemory, I think this is a "bug fix" as I think the
code as written will actually infloop if ever reached. For the
getModRefInfo, this is a no-op change but with a significantly simpler
form.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245007
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Chandler Carruth [Fri, 14 Aug 2015 02:12:12 +0000 (02:12 +0000)]
[PM/AA] Sink all the actual code from AliasAnalysisCounter back into the
.cpp file to make the header much less noisy.
Also makes it easy to use a static helper rather than a public method
for printing lines of stats.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245006
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Chandler Carruth [Fri, 14 Aug 2015 02:07:05 +0000 (02:07 +0000)]
[PM/AA] Run clang-format over this code to establish a clean baseline
for subsequent changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245005
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Chandler Carruth [Fri, 14 Aug 2015 02:05:41 +0000 (02:05 +0000)]
[PM/AA] Hoist the AA counter pass into a header to match the analysis
pattern.
Also hoist the creation routine out of the generic header and into the
pass header now that we have one.
I've worked to not make any changes, even formatting ones here. I'll
clean up the formatting and other things in a follow-up patch now that
the code is in the right place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245004
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Jingyue Wu [Fri, 14 Aug 2015 02:02:05 +0000 (02:02 +0000)]
[SeparateConstOffsetFromGEP] sext(a)+sext(b) => sext(a+b) when a+b can't sign-overflow.
Summary:
This patch implements my promised optimization to reunites certain sexts from
operands after we extract the constant offset. See the header comment of
reuniteExts for its motivation.
One key building block that enables this optimization is Bjarke's poison value
analysis (D11212). That helps to prove "a +nsw b" can't overflow.
Reviewers: broune
Subscribers: jholewinski, sanjoy, llvm-commits
Differential Revision: http://reviews.llvm.org/D12016
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245003
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Chandler Carruth [Fri, 14 Aug 2015 01:43:46 +0000 (01:43 +0000)]
[PM/AA] Remove the function names and class names from doxygen comments
and generally clean up their formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245002
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Chandler Carruth [Fri, 14 Aug 2015 01:43:02 +0000 (01:43 +0000)]
[PM/AA] Move the LibCall AA creation routine declaration to that
analysis's header file to be more consistent with other analyses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245001
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Chandler Carruth [Fri, 14 Aug 2015 01:38:25 +0000 (01:38 +0000)]
[PM/AA] Run clang-format over LibCallAliasAnalysis prior to making
substantial changes needed for the new pass manager's AA integration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245000
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David Blaikie [Fri, 14 Aug 2015 00:37:16 +0000 (00:37 +0000)]
Update ExceptionDemo for exception handling API changes (personality function call->function move)
The ExceptionDemo now compiles, but doesn't link... undefined type
references to various typeinfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244997
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Alex Lorenz [Fri, 14 Aug 2015 00:36:10 +0000 (00:36 +0000)]
Update MIRLangRef for MIR syntax change from r244982.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244996
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David Blaikie [Fri, 14 Aug 2015 00:31:49 +0000 (00:31 +0000)]
Fix -Wformat warnings in ExceptionDemo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244995
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David Blaikie [Fri, 14 Aug 2015 00:24:56 +0000 (00:24 +0000)]
Fix up the ExceptionDemo for some API changes over the past <time>
This still doesn't build -Werror clean, but other than that it should at
least build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244994
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Chandler Carruth [Fri, 14 Aug 2015 00:21:10 +0000 (00:21 +0000)]
[LIR] Re-instate r244880, reverted in r244884, factoring the handling of
AliasAnalysis in LoopIdiomRecognize.
The previous commit to LIR, r244879, exposed some scary bug in the loop
pass pipeline with an assert failure that showed up on several bots.
This patch got reverted as part of getting that revision reverted, but
they're actually independent and unrelated. This patch has no functional
change and should be completely safe. It is also useful for my current
work on the AA infrastructure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244993
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Alex Lorenz [Thu, 13 Aug 2015 23:10:16 +0000 (23:10 +0000)]
MIR Serialization: Change MIR syntax - use custom syntax for MBBs.
This commit modifies the way the machine basic blocks are serialized - now the
machine basic blocks are serialized using a custom syntax instead of relying on
YAML primitives. Instead of using YAML mappings to represent the individual
machine basic blocks in a machine function's body, the new syntax uses a single
YAML block scalar which contains all of the machine basic blocks and
instructions for that function.
This is an example of a function's body that uses the old syntax:
body:
- id: 0
name: entry
instructions:
- '%eax = MOV32r0 implicit-def %eflags'
- 'RETQ %eax'
...
The same body is now written like this:
body: |
bb.0.entry:
%eax = MOV32r0 implicit-def %eflags
RETQ %eax
...
This syntax change is motivated by the fact that the bundled machine
instructions didn't map that well to the old syntax which was using a single
YAML sequence to store all of the machine instructions in a block. The bundled
machine instructions internally use flags like BundledPred and BundledSucc to
determine the bundles, and serializing them as MI flags using the old syntax
would have had a negative impact on the readability and the ease of editing
for MIR files. The new syntax allows me to serialize the bundled machine
instructions using a block construct without relying on the internal flags,
for example:
BUNDLE implicit-def dead %itstate, implicit-def %s1 ... {
t2IT 1, 24, implicit-def %itstate
%s1 = VMOVS killed %s0, 1, killed %cpsr, implicit killed %itstate
}
This commit also converts the MIR testcases to the new syntax. I developed
a script that can convert from the old syntax to the new one. I will post the
script on the llvm-commits mailing list in the thread for this commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244982
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Sanjay Patel [Thu, 13 Aug 2015 22:53:20 +0000 (22:53 +0000)]
don't repeat function names in comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244977
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David Majnemer [Thu, 13 Aug 2015 22:11:40 +0000 (22:11 +0000)]
[IR] Cleanup indentation of EH instructions
No functional change is intended, just tidying up whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244966
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Simon Pilgrim [Thu, 13 Aug 2015 21:40:02 +0000 (21:40 +0000)]
[AMDGPU] Use the general SMAX/SMIN/UMAX/UMIN pattern matching and remove the AMDGPU implementation
D9746 added general SMAX/SMIN/UMAX/UMIN pattern matching to SelectionDAGBuilder::visitSelect.
Differential Revision: http://reviews.llvm.org/D12007
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244960
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Ahmed Bougacha [Thu, 13 Aug 2015 21:09:13 +0000 (21:09 +0000)]
[AArch64] Provide "too few operands" diags on short-form NEON also.
We used to just say "invalid type suffix for instruction", which is
misleading. This is because we fallback to the long-form matcher if the
short-form matcher failed, losing the error information on the way.
Save it, so that we can provide a little better diagnostics when the
long-form matcher thinks a suffix is the cause of the error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244955
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Alex Lorenz [Thu, 13 Aug 2015 20:55:01 +0000 (20:55 +0000)]
MIR Parser: Don't allow negative alignments for memory operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244953
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Simon Pilgrim [Thu, 13 Aug 2015 20:45:55 +0000 (20:45 +0000)]
[X86][SSE] Use the general SMAX/SMIN/UMAX/UMIN pattern matching and remove the X86 implementation
Follow up to D10947 - D9746 added general SMAX/SMIN/UMAX/UMIN pattern matching to SelectionDAGBuilder::visitSelect.
This patch removes the X86 implementation and improves the AVX1/AVX2 support to correctly lower 256-bit integer vectors.
Differential Revision: http://reviews.llvm.org/D12006
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244949
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Davide Italiano [Thu, 13 Aug 2015 20:34:26 +0000 (20:34 +0000)]
[SimplifyLibCalls] Correctly set the is_zero_undef flag for llvm.cttz
If <src> is non-zero we can safely set the flag to true, and this
results in less code generated for, e.g. ffs(x) + 1 on FreeBSD.
Thanks to majnemer for suggesting the fix and reviewing.
Code generated before the patch was applied:
0: 0f bc c7 bsf %edi,%eax
3: b9 20 00 00 00 mov $0x20,%ecx
8: 0f 45 c8 cmovne %eax,%ecx
b: 83 c1 02 add $0x2,%ecx
e: b8 01 00 00 00 mov $0x1,%eax
13: 85 ff test %edi,%edi
15: 0f 45 c1 cmovne %ecx,%eax
18: c3 retq
Code generated after the patch was applied:
0: 0f bc cf bsf %edi,%ecx
3: 83 c1 02 add $0x2,%ecx
6: 85 ff test %edi,%edi
8: b8 01 00 00 00 mov $0x1,%eax
d: 0f 45 c1 cmovne %ecx,%eax
10: c3 retq
It seems we can still use cmove and save another 'test' instruction, but
that can be tackled separately.
Differential Revision: http://reviews.llvm.org/D11989
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244947
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Alex Lorenz [Thu, 13 Aug 2015 20:33:33 +0000 (20:33 +0000)]
MIR Parser: Extract the code that parses the alignment into a new method. NFC.
This commit extracts the code that parses the memory operand's alignment into
a new method named 'parseAlignment' so that it can be reused when parsing the
basic block's alignment attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244945
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Simon Pilgrim [Thu, 13 Aug 2015 20:31:03 +0000 (20:31 +0000)]
[X86][SSE] Tests for SMAX/SMIN/UMAX/UMIN vector instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244944
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Alex Lorenz [Thu, 13 Aug 2015 20:30:11 +0000 (20:30 +0000)]
MIR Parser: Rename the method 'diagFromLLVMAssemblyDiag'. NFC.
This commit renames the method 'diagFromLLVMAssemblyDiag' to
'diagFromBlockStringDiag'. This method will be used when converting diagnostics
from other YAML block strings, and not just the LLVM module block string, so
the new name should reflect that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244943
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Jingyue Wu [Thu, 13 Aug 2015 18:48:49 +0000 (18:48 +0000)]
[SeparateConstOffsetFromGEP] strengthen the inbounds attribute
We used to be over-conservative about preserving inbounds. Actually, the second
GEP (which applies the constant offset) can inherit the inbounds attribute of
the original GEP, because the resultant pointer is equivalent to that of the
original GEP. For example,
x = GEP inbounds a, i+5
=>
y = GEP a, i // inbounds removed
x = GEP inbounds y, 5 // inbounds preserved
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244937
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David Majnemer [Thu, 13 Aug 2015 18:31:43 +0000 (18:31 +0000)]
[llvm-cxxdump] Correctly process relocations when given multiple files
Archive files wouldn't lead to us reprocessing the section relocations
for the new object files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244932
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Yaron Keren [Thu, 13 Aug 2015 18:12:56 +0000 (18:12 +0000)]
Remove and forbid raw_svector_ostream::flush() calls.
After r244870 flush() will only compare two null pointers and return,
doing nothing but wasting run time. The call is not required any more
as the stream and its SmallString are always in sync.
Thanks to David Blaikie for reviewing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244928
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Nick Lewycky [Thu, 13 Aug 2015 18:10:19 +0000 (18:10 +0000)]
Fix GCC warning: extra `;' [-Wpedantic].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244924
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Nemanja Ivanovic [Thu, 13 Aug 2015 17:40:44 +0000 (17:40 +0000)]
Scalar to vector conversions using direct moves
This patch corresponds to review:
http://reviews.llvm.org/D11471
It improves the code generated for converting a scalar to a vector value. With
direct moves from GPRs to VSRs, we no longer require expensive stack operations
for this. Subsequent patches will handle the reverse case and more general
operations between vectors and their scalar elements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244921
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Igor Laevsky [Thu, 13 Aug 2015 17:40:04 +0000 (17:40 +0000)]
Emit argmemonly attribute for intrinsics.
Differential Revision: http://reviews.llvm.org/D11352
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244920
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James Molloy [Thu, 13 Aug 2015 17:28:26 +0000 (17:28 +0000)]
[ARM] FMINNAN/FMAXNAN of f64 are not legal.
This was my error. We've got f32 marked as legal because they're simulated using a v2f32 instruction, but there's no equivalent for f64.
This will get test coverage imminently when D12015 lands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244916
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James Molloy [Thu, 13 Aug 2015 17:28:20 +0000 (17:28 +0000)]
[ARM] Allow vmin/vmax of scalars to be emitted without UseNEONForFP.
This overrides the default to more closely resemble the hand-crafted matching logic in ISelLowering. It makes sense, as there is no VFP equivalent of vmin or vmax, to use them when they're available even if in general VFP ops should be preferred.
This should be NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244915
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James Molloy [Thu, 13 Aug 2015 17:28:16 +0000 (17:28 +0000)]
[ARM] Rejig vmax tests a bit
They rely on global fast-math options, but soon ISel will rely only on fast-math flags on the instructions themselves. Rip the fast checks out into their own file so we can mark their instructions as fast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244914
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James Molloy [Thu, 13 Aug 2015 17:28:10 +0000 (17:28 +0000)]
[AArch64] Small rejig of fmax tests, NFCI.
These tests relied on -enable-no-nans-fp-math, whereas soon they'll take their no-nans hint
from the FCMP instruction itself, so split the no-nans stuff out into its own test.
Also do a slight rejig of instruction order. The old FMIN/MAX backend matching had to deal with looking through casts, which it never did particularly well. Now, instcombine will recognize such patterns and canonicalize the cast outside the select. So modify the test inputs to assume that instcombine has already run.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244913
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Erik Eckstein [Thu, 13 Aug 2015 15:36:11 +0000 (15:36 +0000)]
[DeadStoreElimination] remove a redundant store even if the load is in a different block.
DeadStoreElimination does eliminate a store if it stores a value which was loaded from the same memory location.
So far this worked only if the store is in the same block as the load.
Now we can also handle stores which are in a different block than the load.
Example:
define i32 @test(i1, i32*) {
entry:
%l2 = load i32, i32* %1, align 4
br i1 %0, label %bb1, label %bb2
bb1:
br label %bb3
bb2:
; This store is redundant
store i32 %l2, i32* %1, align 4
br label %bb3
bb3:
ret i32 0
}
Differential Revision: http://reviews.llvm.org/D11854
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244901
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Petar Jovanovic [Thu, 13 Aug 2015 15:12:49 +0000 (15:12 +0000)]
[mips][mcjit] Calculate correct addend for HI16 and PCHI16 reloc
Previously, for O32 ABI we did not calculate correct addend for R_MIPS_HI16
and R_MIPS_PCHI16 relocations. This patch fixes that.
Patch by Vladimir Radosavljevic.
Differential Revision: http://reviews.llvm.org/D11186
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244897
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Joseph Tremoulet [Thu, 13 Aug 2015 14:30:10 +0000 (14:30 +0000)]
[WinEHPrepare] Update demotion logic
Summary:
Update the demotion logic in WinEHPrepare to avoid creating new cleanups by
walking predecessors as necessary to insert stores for EH-pad PHIs.
Also avoid creating stores for EH-pad PHIs that have no uses.
The store/load placement is still pretty naive. Likely future improvements
(at least for optimized compiles) include:
- Share loads for related uses as possible
- Coalesce non-interfering use/def-related PHIs
- Store at definition point rather than each PHI pred for non-interfering
lifetimes.
Reviewers: rnk, majnemer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D11955
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244894
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Ulrich Weigand [Thu, 13 Aug 2015 13:37:06 +0000 (13:37 +0000)]
[SystemZ] Support large LLVM IR struct return values
Recent mesa/llvmpipe crashes on SystemZ due to a failed assertion when
attempting to compile a routine with a return type of
{ <4 x float>, <4 x float>, <4 x float>, <4 x float> }
on a system without vector instruction support.
This is because after legalizing the vector type, we get a return value
consisting of 16 floats, which cannot all be returned in registers.
Usually, what should happen in this case is that the target's CanLowerReturn
routine rejects the return type, in which case SelectionDAG falls back to
implementing a structure return in memory via implicit reference.
However, the SystemZ target never actually implemented any CanLowerReturn
routine, and thus would accept any struct return type.
This patch fixes the crash by implementing CanLowerReturn. As a side effect,
this also handles fp128 return values, fixing a todo that was noted in
SystemZCallingConv.td.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244889
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Yaron Keren [Thu, 13 Aug 2015 12:42:25 +0000 (12:42 +0000)]
Remove raw_svector_ostream::resync and users. It's no-op after r244870.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244888
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Charlie Turner [Thu, 13 Aug 2015 12:38:58 +0000 (12:38 +0000)]
[InstCombinePHI] Partial simplification of identity operations.
Consider this code:
BB:
%i = phi i32 [ 0, %if.then ], [ %c, %if.else ]
%add = add nsw i32 %i, %b
...
In this common case the add can be moved to the %if.else basic block, because
adding zero is an identity operation. If we go though %if.then branch it's
always a win, because add is not executed; if not, the number of instructions
stays the same.
This pattern applies also to other instructions like sub, shl, shr, ashr | 0,
mul, sdiv, div | 1.
Patch by Jakub Kuderski!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244887
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Renato Golin [Thu, 13 Aug 2015 11:25:38 +0000 (11:25 +0000)]
Revert "[LIR] Start leveraging the fundamental guarantees of a loop..."
This reverts commit r244879, as it broke the test-suite on
SingleSource/Regression/C/2004-03-15-IndirectGoto in AArch64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244885
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Renato Golin [Thu, 13 Aug 2015 11:25:35 +0000 (11:25 +0000)]
Revert "[LIR] Handle access to AliasAnalysis the same way as the other analysis in LoopIdiomRecognize."
This reverts commit r244880, as it broke the test-suite on
SingleSource/Regression/C/2004-03-15-IndirectGoto in AArch64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244884
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Ashutosh Nema [Thu, 13 Aug 2015 11:18:35 +0000 (11:18 +0000)]
Test Commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244883
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