Jan Sjödin
e4f6d7461a
Remove optimization emitting a reference insted of label difference, since it can create more relocations. Removed isBaseAddressKnownZero method, because it is no longer used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 19:37:02 +00:00
Daniel Dunbar
950d3db5f4
Revert r127459, "Optimize trivial branches in CodeGenPrepare, which often get
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created from the", it broke some GCC test suite tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127477 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 19:30:30 +00:00
Oscar Fuentes
4839ded3bd
Force re-linking of LLVMgold.so when its exports file changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127473 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 18:27:13 +00:00
Oscar Fuentes
aa1fbb40ad
Fix processing of gold.exports.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127471 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 18:07:46 +00:00
Devang Patel
027f0995d4
While printing annotations, print line number and variable name if debug info is present.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127470 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 18:07:33 +00:00
Jim Grosbach
eb582d7ba2
Fix MOVCCi32imm to be have ARM-mode Requires and a proper size (8 bytes, was 4).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127469 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 18:00:42 +00:00
Andrew Trick
778583ad28
Replace -dag-chain-limit flag with constant. It has survived a release cycle without being touched, so no longer needs to pollute the hidden-help text.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127468 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 17:46:59 +00:00
Oscar Fuentes
1dc550b383
Add LTO and gold plugin to the CMake build. Linux-only, support for
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other systems pending.
PR9456.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127466 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 15:44:24 +00:00
Benjamin Kramer
2715a58149
ComputeMaskedBits: sub falls through to add, and sub doesn't have the same overflow semantics as add.
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Should fix the selfhost failures that started with r127463.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127465 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 14:46:49 +00:00
Benjamin Kramer
6b4972518c
InstCombine: Fix a thinko where transform an icmp under the assumption that it's a zero comparison when it's not.
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Fixes PR9454.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127464 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 11:37:40 +00:00
Nick Lewycky
b69050a94c
Teach ComputeMaskedBits about nsw on add. I don't think there's anything we can
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do with nuw here, but sub and mul should be given similar treatment.
Fixes PR9343 #15 !
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127463 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 09:00:19 +00:00
John Wiegley
6fd2472b1b
Fix use of CompEnd predicate to be standards conforming
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The existing CompEnd predicate does not define a strict weak order as required
by the C++03 standard; therefore, its use as a predicate to std::upper_bound
is invalid. For a discussion of this issue, see
http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html#270
This patch replaces the asymmetrical comparison with an iterator adaptor that
achieves the same effect while being strictly standard-conforming by ensuring
an apples-to-apples comparison.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127462 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 08:54:34 +00:00
Cameron Zwarich
592ca3fda9
Optimize trivial branches in CodeGenPrepare, which often get created from the
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lowering of objectsize intrinsics. Unfortunately, a number of tests were relying
on llc not optimizing trivial branches, so I had to add an option to allow them
to continue to test what they originally tested.
This fixes <rdar://problem/8785296> and <rdar://problem/9112893>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127459 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 04:54:27 +00:00
Jim Grosbach
4a6d735105
Teach TableGen to pre-calculate register enum values when creating the
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CodeGenRegister entries. Use this information to more intelligently build
the literal register entires in the DAGISel matcher table. Specifically,
use a single-byte OPC_EmitRegister entry for registers with a value of
less than 256 and OPC_EmitRegister2 entry for registers with a larger value.
rdar://9066491
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127456 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 02:19:02 +00:00
Chris Lattner
109d6dbe50
silence a conditional assignment -Wuninitialized warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 02:12:51 +00:00
Jim Grosbach
17fad045cc
Make the register enum value part of the CodeGenRegister struct.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127448 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 01:33:54 +00:00
Jim Grosbach
510207cb1e
Trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127447 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 01:27:24 +00:00
Jim Grosbach
5d4314ef72
Trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127446 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 01:19:05 +00:00
Jim Grosbach
7e0e82dcd5
Tidy up since ARM MOVCCi and MOVCCi16 are now pseudos.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127445 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 01:16:49 +00:00
Jim Grosbach
3906276a8d
Properly pseudo-ize ARM MOVCCi and MOVCCi16.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127442 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 01:09:28 +00:00
Eric Christopher
de5e101b0d
Change the x86 32-bit scheduler to register pressure and fix up the
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corresponding testcases back to the previous versions.
Fixes some performance regressions only seen on 32-bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127441 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 01:05:58 +00:00
Evan Cheng
9ef82ce4fe
Avoid replacing the value of a directly stored load with the stored value if the load is indexed. rdar://9117613.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127440 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 00:48:56 +00:00
Jim Grosbach
d4a16ad85d
Properly pseudo-ize MOVCCr and MOVCCs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127434 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 23:56:09 +00:00
Dan Gohman
c9f2f61d34
RecursivelyDeleteTriviallyDeadInstructions only needs a
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Value, not an Instruction, so casting is not necessary. Also,
it's theoretically possible that the Value is not an
Instruction, since WeakVH follows RAUWs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127427 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 20:57:44 +00:00
Rafael Espindola
9d2234d6a0
Don't compute the file size if we don't need to.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127426 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 20:54:07 +00:00
Dan Gohman
fa0e6facc7
Fix reassociate to postpone certain instruction deletions until
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after it has finished all of its reassociations, because its
habit of unlinking operands and holding them in a datastructure
while working means that it's not easy to determine when an
instruction is really dead until after all its regular work is
done. rdar://9096268.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 19:51:54 +00:00
Jim Grosbach
a4f809d8db
DMB can just be a pat referencing MCR.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127423 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 19:27:17 +00:00
Jim Grosbach
bc908cfcc1
Reorganize a bit. No functional change, just moving patterns up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127422 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 19:21:08 +00:00
Jim Grosbach
a768c3d45f
Pseudo-instructions are codegenonly by definition.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127420 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 19:06:39 +00:00
Jim Grosbach
5e97338c8d
Memory barrier instructions don't need special handling in tblgen anymore.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127419 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 19:05:48 +00:00
Benjamin Kramer
6b96fe7e14
InstCombine: Turn umul_with_overflow into mul nuw if we can prove that it cannot overflow.
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This happens a lot in clang-compiled C++ code because it adds overflow checks to operator new[]:
unsigned *foo(unsigned n) { return new unsigned[n]; }
We can optimize away the overflow check on 64 bit targets because (uint64_t)n*4 cannot overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127418 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 18:40:14 +00:00
Rafael Espindola
f7fdad15d9
Add r127409 back now that the windows file was updated.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127417 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 18:33:29 +00:00
Rafael Espindola
b78e2ae4ca
Try to fix the windows build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127416 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 18:30:48 +00:00
Jakob Stoklund Olesen
4b0e1f1278
Revert r127409 which broke all the Windows bots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 18:01:43 +00:00
Justin Holewinski
fca9efcbc4
PTX: Add preliminary support for floating-point divide and multiply-and-add
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127410 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 16:57:18 +00:00
Rafael Espindola
7deb187736
Add support for MemoryBuffers that are not null terminated and add
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support for creating buffers that cover only a part of a file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127409 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 16:10:30 +00:00
Chris Lattner
be2e1b50c4
rip out llvm 2.8 release notes to make room for llvm 2.9 notes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 07:43:44 +00:00
Cameron Zwarich
6a951ac63f
Add an option to disable critical edge splitting in PHIElimination.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127398 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 05:59:17 +00:00
Che-Liang Chiou
2f5565d21c
ptx: add the rest of special registers of ISA version 2.0
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127397 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 04:05:57 +00:00
Jakob Stoklund Olesen
47dbf6cef7
Change the Spiller interface to take a LiveRangeEdit reference.
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This makes it possible to register delegates and get callbacks when the spiller
edits live ranges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127389 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 01:51:42 +00:00
Jakob Stoklund Olesen
38f6bd0fc8
Make SpillIs an optional pointer. Avoid creating a bunch of temporary SmallVectors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127388 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 01:21:58 +00:00
Francois Pichet
581d535af9
Unbreak the CMake build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127383 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 00:51:01 +00:00
Stuart Hastings
03d5826164
Revert 127359; it broke lencod.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127382 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 00:25:53 +00:00
Devang Patel
6af531febe
Introduce DebugInfoProbe. This is used to monitor how llvm optimizer is treating debugging information.
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It generates output that lools like
8 times line number info lost by Scalar Replacement of Aggregates (SSAUp)
1 times line number info lost by Simplify well-known library calls
12 times variable info lost by Jump Threading
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127381 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 00:21:25 +00:00
Evan Cheng
b0519e15f7
Re-commit 127368 and 127371. They are exonerated.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127380 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 00:16:32 +00:00
Evan Cheng
02d7c92982
Revert 127368 and 127371 for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127376 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 23:53:17 +00:00
Evan Cheng
0f24d49aca
Restore the default implementation of getCrossCopyRegClass: no need for cross-regclass copies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127371 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 23:15:40 +00:00
Daniel Dunbar
edfab0ca1e
Revert "Re-enable test and hope to silence the buildbots", still broken.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 22:48:46 +00:00
Evan Cheng
17adafc6c1
Change the definition of TargetRegisterInfo::getCrossCopyRegClass to be more
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flexible.
If it returns a register class that's different from the input, then that's the
register class used for cross-register class copies.
If it returns a register class that's the same as the input, then no cross-
register class copies are needed (normal copies would do).
If it returns null, then it's not at all possible to copy registers of the
specified register class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127368 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 22:47:38 +00:00
Benjamin Kramer
7bff3e7c1b
Fix mistyped CHECK lines.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127366 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 22:07:31 +00:00