Jim Laskey
014f98c7e5
Place dwarf headers at earliest possible point. Well behaved when skipping
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functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28781 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-14 11:35:03 +00:00
Chris Lattner
f7a1212850
Fix Transforms/LoopUnswitch/2006-06-13-SingleEntryPHI.ll, a loop unswitch
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bug exposed by the recent lcssa work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28779 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-14 04:46:17 +00:00
Chris Lattner
2c54676d70
new testcase, distilled from povray
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28778 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-14 04:45:45 +00:00
Owen Anderson
90245d4cbb
When asked not to delete useless PHIs, really don't delete them, no matter how
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redundant they are.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28777 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-14 04:43:14 +00:00
Chris Lattner
13a68e4257
Use the PotDoms map to memoize 'dominating value' lookup. With this patch,
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LCSSA is still the slowest pass when gccas'ing 252.eon, but now it only takes
39s instead of 289s. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28776 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-14 01:13:57 +00:00
Evan Cheng
50c997e26a
getOperandNum(): error if specified operand number is out of range.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28775 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 21:47:27 +00:00
Owen Anderson
8b92d0cae1
Fix another instance where PHI nodes need special treatment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28774 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 20:50:09 +00:00
Owen Anderson
3cc86cc11f
Update isLCSSAForm to handle PHI nodes specially for live-out detection. This
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is the same as the recent patch to LCSSA.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28773 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 20:45:22 +00:00
Andrew Lenharth
c8aba85e1c
I am sure I had commited this workaround before. Perhaps soon I should sort it all out
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28772 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 20:34:47 +00:00
Owen Anderson
7be3f1e078
Fix a bug that was causing major slowdowns in povray. This was due to LCSSA
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not handling PHI nodes correctly when determining if a value was live-out.
This patch reduces the number of detected live-out variables in the testcase
from 6565 to 485.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28771 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 19:37:18 +00:00
Andrew Lenharth
0e4dd01ffc
It really helps to be returning to the correct place
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28769 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 18:27:39 +00:00
Chris Lattner
c4fa603347
Port some bugfixes in shift handling from SimplifyDemandedBits over to
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ComputeMaskedBits. DemandedMasks and KnownZero/One masks should never have
bits set out of the range of the base datatype.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28768 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 16:52:37 +00:00
Jim Laskey
209f437303
My original test case was bogus. Reverting to crasher case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28767 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 15:22:49 +00:00
Jim Laskey
df1530a5e3
Tests to make sure that ComputeMaskedBits discards bits for shifts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28766 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 13:10:44 +00:00
Jim Laskey
9bfa2dcff6
TargetLowering::ComputeMaskedBits was not clearing reciprocal bits on shifts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28765 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 13:08:58 +00:00
Evan Cheng
004fb92615
Cygwin support: use _alloca to allocate stack if > 4k. Patch by Anton Korobeynikov.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28764 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 05:14:44 +00:00
Chris Lattner
9686ae7f4e
Teach bugpoint to kill optimization passes that run over the timeout limit,
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which allows it to debug optimizer infinite loops. This patch is contributed
by Nick Lewycky, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28763 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 03:10:48 +00:00
Chris Lattner
81c01f0d2c
Decribe the "implementation" keyword.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28762 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 03:05:47 +00:00
Chris Lattner
e67304fb78
Gaar! Don't use r11 for CR save/restore, use R0. R11 can be register
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allocated, thus live across the save/reload. This fixes
llc-beta /MultiSource/Applications/spiff/spiff
llc-beta /MultiSource/Benchmarks/sim/sim:
llc-beta /MultiSource/Benchmarks/Ptrdist/bc/bc
llc-beta /MultiSource/Benchmarks/McCat/12-IOtest/iotest:
llc-beta /MultiSource/Benchmarks/FreeBench/fourinarow/fourinarow
llc-beta /MultiSource/Benchmarks/Fhourstones-3.1/fhourstones3.1
llc-beta /MultiSource/Benchmarks/mediabench/adpcm/rawdaudio/rawdaudio
llc-beta /MultiSource/Benchmarks/mediabench/adpcm/rawcaudio/rawcaudio
llc-beta /MultiSource/Benchmarks/mediabench/g721/g721encode/encode
llc-beta /MultiSource/Benchmarks/mediabench/jpeg/jpeg-6a/cjpeg
and probably others, with -regalloc=local.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28761 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 23:59:16 +00:00
Chris Lattner
b47e0897a0
Fix spilling and reloading of CR regs to reload the right values. This fixes
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Olden/power (and probably others) with -regalloc=local.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28760 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 21:50:57 +00:00
Owen Anderson
6edf399bb4
Reapply my 6/9 changes. The bug Evan saw no longer occurs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28759 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 21:49:21 +00:00
Chris Lattner
7f2e1dd5d4
Fix an infinite loop on Transforms/SimplifyCFG/2006-06-12-InfLoop.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28758 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 20:18:01 +00:00
Chris Lattner
b2035f2287
TEstcase that makes simplifycfg infloop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28757 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 20:17:44 +00:00
Chris Lattner
f6dc20fcc0
Add a new -compileflags options, remove old externals location specifiers.
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People should just use -with-externals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28756 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 19:03:17 +00:00
Chris Lattner
a3bb86dd6b
Make sure to update the CFG correctly if a switch only has a default dest.
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This fixes CodeGen/Generic/2006-06-12-LowerSwitchCrash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28755 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 18:25:29 +00:00
Chris Lattner
1398421ccf
New testcase that crashes llc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28754 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 18:24:32 +00:00
Andrew Lenharth
f2b806a1aa
Let the alpha breakage begin. First Formals and RET. next Calls
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28753 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 18:09:24 +00:00
Andrew Lenharth
232c910b8a
Start on my todo list
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28752 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 16:07:18 +00:00
Rafael Espindola
337c4ad6e7
lower more then 4 formal arguments. The offset is currently hard coded.
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implement SelectFrameIndex
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 12:28:08 +00:00
Owen Anderson
3d2aa47bd3
Fix for 2006-06-26-MultipleExitsSingleBlock.
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If a single exit block has multiple predecessors within the loop, it will
appear in the exit blocks list more than once. LCSSA needs to take that into
account so that it doesn't double process that exit block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28750 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 07:10:16 +00:00
Owen Anderson
b083af6448
Make sure that LCSSA works properly when it encounters an exit block that has
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more than one predecessor inside the loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28749 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 07:05:47 +00:00
Owen Anderson
c2cc15cf9d
Re-commit the safe parts of my 6/9 patch. Still working on fixing the unsafe parts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28748 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-11 19:22:28 +00:00
Evan Cheng
b9b2b309d3
Back out Owen's 6/9 changes. They broke MultiSource/Benchmarks/Prolangs-C/bison (and perhaps others).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28747 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-11 09:32:57 +00:00
Chris Lattner
31d1a2c51c
Add a missing assertion that would have helped out Reid
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28746 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-10 04:16:23 +00:00
Chris Lattner
cf00631719
Work around a nasty tblgen bug where it doesn't add operands for varargs
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nodes correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28745 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-10 01:15:02 +00:00
Chris Lattner
4a45abf66e
Fix a problem exposed by the local allocator. CALL instructions are not marked
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as using incoming argument registers, so the local allocator would clobber them
between their set and use. To fix this, we give the call instructions a variable
number of uses in the CALL MachineInstr itself, so live variables understands
the live ranges of these register arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28744 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-10 01:14:28 +00:00
Chris Lattner
11bcd28dff
Wrap to 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28743 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 23:59:44 +00:00
Chris Lattner
629e48768a
After telling GCC to type of the input file with -x asm/-x c, switch back to
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-x none, to not foul up autodetection of .a file or .dylibs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28741 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 21:31:53 +00:00
Evan Cheng
2fafaf1b01
Don't pull in environ, not always safe. Global variables are bad anyway.
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Use execve when explicit environment variables ptr is available. Otherwise
just use execv.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28740 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 20:43:11 +00:00
Owen Anderson
fcaf345c88
Add LCSSA as a requirement for LoopUnswitch, and assert that LoopUnswitch preserves
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LCSSA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28739 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 18:40:32 +00:00
Owen Anderson
f25c19c6b5
Make Loop able to verify that it is in LCSSA-form, and have the LCSSA pass assert
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on this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28738 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 18:33:30 +00:00
Evan Cheng
e5e228df19
Comments to appease sabre.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28737 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 06:25:10 +00:00
Evan Cheng
b12223e284
Minor compilation speed improvement.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28736 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 06:24:42 +00:00
Evan Cheng
86c75d3113
RewriteExpr, either the new PHI node of induction variable or the
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post-increment value, should be first cast to the appropriated type (to the
type of the common expr). Otherwise, the rewrite of a use based on (common +
iv) may end up with an incorrect type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28735 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 00:12:42 +00:00
Owen Anderson
a452932171
Update some comments, and expose LCSSAID in preparation for having other passes
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require LCSSA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28734 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08 20:02:53 +00:00
Chris Lattner
0c48fd4610
Fix X86/inline-asm.ll:test2, a case where an input value was implicitly
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truncated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28733 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08 18:27:11 +00:00
Chris Lattner
586e65357b
Add new testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28732 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08 18:26:48 +00:00
Chris Lattner
cf752aa502
Fix Regression/CodeGen/X86/inline-asm.ll, a case where inline asm causes
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implement extension of a register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28731 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08 18:22:48 +00:00
Chris Lattner
5591c5183b
New testcase, using "AX" as i32.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28730 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08 18:20:13 +00:00
Reid Spencer
ab4d9b0446
Squelch a warning about signed/unsigned.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28729 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08 18:08:43 +00:00