Chris Lattner
e97c733541
add some helper classes for building light-weight symbolic stack traces
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that get printed when a program crashes. This is the first step of many.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 21:40:23 +00:00
Dale Johannesen
6129e24e49
Re-commit 65975 and a fix for the problem that
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was causing llvm-gcc to fail to build. I've
verified it bootstraps now; good enough for me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 21:24:04 +00:00
Chris Lattner
35033a5876
Add a new 'AddSignalHandler' function to Signals.h that allows
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arbitrary functions to be run when a crash happens. Delete
RemoveDirectoryOnSignal as it is dead and has never had clients.
Change PrintStackTraceOnErrorSignal to be implemented in terms of
AddSignalHandler.
I updated the Win32 versions of these APIs, but can't test them.
If there are any problems, I'd be happy to fix them as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66072 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 21:21:36 +00:00
Dan Gohman
fd0339933b
Fix this comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66065 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 20:50:23 +00:00
Dan Gohman
bc10b8c6c7
Add an assertion for a condition that's always true, and not
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immediately obvious.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66062 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 20:49:01 +00:00
Dan Gohman
076aee32e8
Re-apply 66008, now that the unfoldMemoryOperand bug is fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:44:21 +00:00
Dan Gohman
fc53fc657e
Correct this comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66057 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:24:25 +00:00
Dan Gohman
b37a8206b6
When using MachineInstr operand indices on SDNodes, the number
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of MachineInstr def operands must be subtracted out. This bug
was uncovered by the recent x86 EFLAGS optimization. Before
that, the only instructions that ever needed unfolding were
things like CMP32rm, where NumDefs is zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66056 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:23:38 +00:00
Chris Lattner
88fe1ad187
complete comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66055 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:23:25 +00:00
Chris Lattner
0ff83ab985
this wasn't intended to be committed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66054 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:22:30 +00:00
Chris Lattner
1541e0f7da
Fix PR3720 by properly propagating alignment information from memcpy/memmove
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onto element accesses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66053 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:20:50 +00:00
Nate Begeman
66941988de
Fix a thinko in the JIT where the address of a GV was only recorded in the map
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on failure to resolve it.
Do not abort on failure to resolve an external symbol when using dlsym stubs,
since the symbol may not be in the JIT's address space. Just use 0.
Allow dlsym stubs to differentiate between GlobalVars and Functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66050 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:10:38 +00:00
Bob Wilson
d344b884dd
Fix BuildVectorSDNode::isConstantSplat to handle one-element vectors.
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It is an error to call APInt::zext with a size that is equal to the value's
current size, so use zextOrTrunc instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66039 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 17:47:01 +00:00
Owen Anderson
c93023a89e
Add a restore folder, which shaves a dozen or so machineinstrs off oggenc. Update a testcase to check this.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66029 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 08:52:31 +00:00
Evan Cheng
ae3f2b6c77
Fix PR3666: isel calls to constant addresses.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66024 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 06:48:53 +00:00
Eli Friedman
27759f41ca
PR3686: make the legalizer handle bitcast from i80 to x86 long double.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66021 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 06:23:34 +00:00
Dan Gohman
29582d1223
Revert r66004 for now; it's causing a variety of test failures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66008 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 03:54:19 +00:00
Dan Gohman
12bbc52aa7
Teach the x86 backend to eliminate "test" instructions by using the EFLAGS
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result from add, sub, inc, and dec instructions in simple cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66004 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 02:33:24 +00:00
Dale Johannesen
0744f09efc
Revert unintended commmit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66001 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 02:09:48 +00:00
Dale Johannesen
d9c05d7711
Skip ptr-to-ptr bitcasts when counting in another case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66000 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 02:06:53 +00:00
Dale Johannesen
cdb16aa5ab
Always skip ptr-to-ptr bitcasts when counting,
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per Chris' suggestion. Slightly faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65999 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 01:53:05 +00:00
Evan Cheng
599a6a88ce
Fix PR3701. 1. X86 target renamed eflags register to flags. This matches what llvm-gcc generates so codegen knows flags register is being clobbered by inline asm. 2. BURR scheduler should also check if inline asm nodes can clobber "live" physical registers. Previously it was only checking target nodes with implicit defs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65996 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 01:41:49 +00:00
Devang Patel
7f6179d1d8
If a global constant is dead then global's debug info should not prevent the optimizer in deleting the global. And while deleting global, delete global's debug info also.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65994 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 01:22:23 +00:00
Dale Johannesen
0d6596b7bf
Make my earlier patch to skip debug intrinsics
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when counting work; it was only off by 1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65993 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 01:20:34 +00:00
Bill Wendling
36ae6c1827
The DAG combiner was performing a BT combine. The BT combine had a value of -1,
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so it changed it into a 31 via the TLO.ShrinkDemandedConstant() call. Then it
would go through the DAG combiner again. This time it had a value of 31, which
was turned into a -1 by TLI.SimplifyDemandedBits(). This would ping pong
forever.
Teach the TLO.ShrinkDemandedConstant() call not to lower a value if the demanded
value is an XOR of all ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65985 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 00:18:06 +00:00
Dale Johannesen
127a7936de
Marking debug info intrinsics as not touching memory
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caused them to be considered trivially dead. Fix this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65979 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 23:30:00 +00:00
Dale Johannesen
4ded40a44d
Instruction counters must skip the bitcasts that
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feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65976 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 22:36:47 +00:00
Devang Patel
9adb01cbc3
Recursively remove dead argument while removing llvm.dbg.declare intrinsic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65971 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 21:31:02 +00:00
Dale Johannesen
4945c65784
When removing a store to an alloca that has only one
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use, check also for the case where it has two uses,
the other being a llvm.dbg.declare. This is needed so
debug info doesn't affect codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65970 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 21:26:39 +00:00
Chris Lattner
44e3dd1672
don't #include a header into the middle of an anon namespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 20:10:23 +00:00
Dan Gohman
09a2609e20
Add '(implicit EFLAGS)' for AND, OR, XOR, NEG, INC, and DEC
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instructions. These aren't used yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65965 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 19:53:46 +00:00
Bob Wilson
f2950b0051
Use early exit to reduce indentation. No functional change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 19:26:27 +00:00
Bill Wendling
1c85503e38
Remove accidental check-ins in r65960. :-(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65961 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 19:25:16 +00:00
Bill Wendling
3aaf5d9933
Use > instead of >=. We want to promote aggregates of 128-bytes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65960 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 19:18:49 +00:00
Bill Wendling
5a377cb27b
Reapply r65755, but reversing "<" to ">=".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65945 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 12:12:58 +00:00
Mikhail Glushenkov
c834bbf558
Oops.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65942 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 10:04:23 +00:00
Mikhail Glushenkov
eba2cb0d5a
80-column violation + trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65936 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 07:22:23 +00:00
Zhou Sheng
7e4286eb7c
Ignore the debug info intrinsics when adding instructions into alias sets.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65934 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 06:02:04 +00:00
Dan Gohman
0f8b53f19d
Fix a bunch of Doxygen syntax issues. Escape special characters,
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and put @file directives on their own comment line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 02:55:14 +00:00
Dale Johannesen
acb51a3037
Don't count DebugInfo instructions in another limit
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(lest they affect codegen).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65915 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 01:43:03 +00:00
Dale Johannesen
bd8e650876
When sinking an insn in InstCombine bring its debug
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info with it.
Don't count debug info insns against the scan maximum
in FindAvailableLoadedValue (lest they affect codegen).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65910 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 01:09:07 +00:00
Devang Patel
cd11991203
Ignore debug info intrinsics.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65908 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 00:28:44 +00:00
Devang Patel
cf42ee42b1
If branch conditions' one successor is dominating another non-latch successor then this loop's iteration space can not be restricted. In this example block bb5 is always executed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65902 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 23:39:14 +00:00
Bob Wilson
24e338e8a3
Generalize BuildVectorSDNode::isConstantSplat to use APInts and handle
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arbitrary vector sizes. Add an optional MinSplatBits parameter to specify
a minimum for the splat element size. Update the PPC target to use the
revised interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65899 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 23:24:16 +00:00
Nate Begeman
0b82f77e66
Fix the calculation for how big the allocated stub needs to be.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65895 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 23:10:14 +00:00
Devang Patel
73df3c9721
Remove all dbg symobls, including those with circular references.
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This is ugly, but I can't figure out a quick way out of this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 22:50:58 +00:00
Chris Lattner
893a0f9f0e
Fix main executable path name resolution on FreeBSD, patch by
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Ed Schouten!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65882 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 22:17:15 +00:00
Duncan Sands
5b7cfb02f7
Fix PR3694: add an instcombine micro-optimization that helps
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clean up when using variable length arrays in llvm-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65832 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 09:18:21 +00:00
Mikhail Glushenkov
f188178a2f
Reorganize llvmc code.
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Move the code from 'llvmc/driver' into a new CompilerDriver library, and change
the build system accordingly. Makes it easier for projects using LLVM to build
their own llvmc-based drivers.
Tested with objdir != srcdir.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65821 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 09:01:14 +00:00
Nate Begeman
cbd88adea6
Fix a problem with DAGCombine on 64b targets where folding
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extracts + build_vector into a shuffle would fail, because the
type of the new build_vector would not be legal. Try harder to
create a legal build_vector type. Note: this will be totally
irrelevant once vector_shuffle no longer takes a build_vector for
shuffle mask.
New:
_foo:
xorps %xmm0, %xmm0
xorps %xmm1, %xmm1
subps %xmm1, %xmm1
mulps %xmm0, %xmm1
addps %xmm0, %xmm1
movaps %xmm1, 0
Old:
_foo:
xorps %xmm0, %xmm0
movss %xmm0, %xmm1
xorps %xmm2, %xmm2
unpcklps %xmm1, %xmm2
pshufd $80, %xmm1, %xmm1
unpcklps %xmm1, %xmm2
pslldq $16, %xmm2
pshufd $57, %xmm2, %xmm1
subps %xmm0, %xmm1
mulps %xmm0, %xmm1
addps %xmm0, %xmm1
movaps %xmm1, 0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65791 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 23:44:07 +00:00