Chris Lattner
89a7eadf22
remove some particularly expensive assertions
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llvm-svn: 30014
2006-09-01 06:57:35 +00:00
Chris Lattner
2aef97494c
Reserve space in the ValueNumberInfo vector. This speeds up live interval
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analysis 16% on crafty.
Wrap long lines.
llvm-svn: 30012
2006-09-01 06:10:18 +00:00
Chris Lattner
7453a7d197
add a simple reserve method.
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llvm-svn: 30011
2006-09-01 06:08:16 +00:00
Chris Lattner
0c120af606
Iterative coallescing doesn't buy us anything (we get identical results on
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crafty with and without it). Removing it speeds up live intervals 6%.
llvm-svn: 30010
2006-09-01 04:02:42 +00:00
Nick Lewycky
ebb3b930fd
Don't confuse canonicalize and lookup. Fixes predsimplify.reg4.ll. Also
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corrects missing optimization opportunity removing cases from a switch.
llvm-svn: 30009
2006-09-01 03:26:35 +00:00
Evan Cheng
b2933f3f52
DAG combiner fix for rotates. Previously the outer-most condition checks
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for ROTL availability. This prevents it from forming ROTR for targets that
has ROTR only.
llvm-svn: 29997
2006-08-31 07:41:12 +00:00
Chris Lattner
fbb467f738
Add a special case that speeds up coallescing a bit, but not enough.
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llvm-svn: 29996
2006-08-31 06:48:26 +00:00
Chris Lattner
1020604f2c
Delete copies as they are coallesced instead of waiting until the end.
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llvm-svn: 29995
2006-08-31 05:58:59 +00:00
Chris Lattner
998dd9b42e
avoid calling the virtual isMoveInstr method endlessly by caching its results.
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llvm-svn: 29994
2006-08-31 05:54:43 +00:00
Chris Lattner
f0e85f8600
Add a note about C++ -> C with libstdc++
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llvm-svn: 29993
2006-08-31 04:26:31 +00:00
Nick Lewycky
56d79475b7
This program crashes the PredicateSimplifier. Not marked XFAIL because
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the PredicateSimplifier is skipped in make check anyways.
llvm-svn: 29992
2006-08-31 03:13:05 +00:00
Nick Lewycky
e31a5a1b20
Properties where both Values weren't in the union (as being equal to
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another Value) weren't being found by findProperties.
This fixes predsimplify.ll test6, a missed optimization opportunity.
llvm-svn: 29991
2006-08-31 00:39:16 +00:00
Chris Lattner
51ea6dd990
Bugfix for recent coallescer crash
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llvm-svn: 29990
2006-08-30 23:03:35 +00:00
Chris Lattner
44b10a80c3
Fix a compiler crash bootstrapping llvm-gcc.
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llvm-svn: 29989
2006-08-30 23:02:29 +00:00
Chris Lattner
45063c4be4
Restore source-level compatibility with clients of these functions.
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llvm-svn: 29978
2006-08-30 20:47:48 +00:00
Chris Lattner
3530cfb3c3
Guess what happens when asserts are disabled. :(
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Also, the assert could never fire due to || instead of &&.
llvm-svn: 29977
2006-08-30 20:37:06 +00:00
Chris Lattner
c7fb7a05bf
fix 80 column issue
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llvm-svn: 29972
2006-08-30 05:56:52 +00:00
Chris Lattner
e84b1b8352
Instantiate Statistic<> in one place, not in every .o file that uses it.
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llvm-svn: 29971
2006-08-30 04:17:00 +00:00
Nick Lewycky
4a44c62fab
Move to using the EquivalenceClass ADT. Removes SynSets.
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If a branch's condition has become a ConstantBool, simplify it immediately.
Removing the edge saves work and exposes up more optimization opportunities
in the pass.
Add support for SelectInst.
llvm-svn: 29970
2006-08-30 02:46:48 +00:00
Chris Lattner
15bbdd8061
Code cleanups, no functionality change.
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llvm-svn: 29969
2006-08-29 23:38:20 +00:00
Chris Lattner
3a4d512930
Teach the coallescer to coallesce live intervals joined by an arbitrary
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number of copies, potentially defining live ranges that appear to have
differing value numbers that become identical when coallsced. Among other
things, this fixes CodeGen/X86/shift-coalesce.ll and PR687.
llvm-svn: 29968
2006-08-29 23:18:15 +00:00
Chris Lattner
e3875d952f
new testcase for pr687
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llvm-svn: 29967
2006-08-29 23:09:59 +00:00
Devang Patel
a5bb9b49d3
Do not rely on std::sort and std::erase to get list of unique
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exit blocks. The output is dependent on addresses of basic block.
Add and use Loop::getUniqueExitBlocks.
llvm-svn: 29966
2006-08-29 22:29:16 +00:00
Evan Cheng
366669c860
Minor asm fix.
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llvm-svn: 29965
2006-08-29 22:14:48 +00:00
Evan Cheng
3b2d02f5cc
This is also a 32-bit only test. x86-64 would pass fp parameters through XMM registers.
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llvm-svn: 29964
2006-08-29 22:01:39 +00:00
Evan Cheng
00436b4bcb
Fix test case so it passes on x86-64.
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llvm-svn: 29963
2006-08-29 21:49:58 +00:00
Evan Cheng
9fda1129ce
Remove dead code.
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llvm-svn: 29962
2006-08-29 21:42:58 +00:00
Reid Spencer
010670d5d3
Delete a no-longer-supported configuration item.
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llvm-svn: 29960
2006-08-29 20:52:44 +00:00
Evan Cheng
46cb8d0649
Undo xfail.
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llvm-svn: 29958
2006-08-29 18:49:41 +00:00
Evan Cheng
b747dc2ab0
Don't performance load/op/store transformation if op produces a floating point
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or vector result. X86 does not have load/mod/store variants of those
instructions.
llvm-svn: 29957
2006-08-29 18:37:37 +00:00
Evan Cheng
4c63a7ed05
- Enable x86 isel preprocessing by default unless -fast is specified.
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- Also disable isel load folding if -fast.
llvm-svn: 29956
2006-08-29 18:28:33 +00:00
Evan Cheng
77da6a9609
Issue cvs co with -P option to prune empty directories. Remove the unnecessary
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update stage.
llvm-svn: 29955
2006-08-29 18:01:18 +00:00
Jim Laskey
d44e9493e6
Handle callee saved registers in dwarf frame info (lead up to exception
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handling.)
llvm-svn: 29954
2006-08-29 16:24:26 +00:00
Jim Laskey
27420577d7
Tidy up options.
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llvm-svn: 29953
2006-08-29 15:13:10 +00:00
Evan Cheng
3f6a206f01
Avoid making unneeded load/mod/store transformation which can hurt performance.
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llvm-svn: 29952
2006-08-29 06:44:17 +00:00
Evan Cheng
2335c819cd
Move isCommutativeBinOp from SelectionDAG.cpp and DAGCombiner.cpp out. Make it a static method of SelectionDAG.
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llvm-svn: 29951
2006-08-29 06:42:35 +00:00
Owen Anderson
bbfa479f14
Clean up a bit.
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llvm-svn: 29950
2006-08-29 06:10:56 +00:00
Nate Begeman
a67a1ec1cd
Make ppc64 jit kinda work right. About 2/3 of Olden passes with this,
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there are clearly some encoding bugs lurking in there somewhere.
llvm-svn: 29949
2006-08-29 02:30:59 +00:00
Nick Lewycky
274779298c
The list is sorted by name.
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llvm-svn: 29948
2006-08-29 01:42:47 +00:00
Nick Lewycky
9535a84c33
Add PredicateSimplifier pass. Collapses equal variables into one form
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and simplifies expressions. This implements the optimization described
in PR807.
llvm-svn: 29947
2006-08-28 22:44:55 +00:00
Evan Cheng
dada4aaeee
On Mac, print jump table entries after the function to work around a linker issue.
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llvm-svn: 29946
2006-08-28 22:14:16 +00:00
Chris Lattner
4fa85705f6
Add 2nd form of resize
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llvm-svn: 29945
2006-08-28 21:52:08 +00:00
Evan Cheng
25d25dd384
Add an optional pass to preprocess the DAG before x86 isel to allow selecting more load/mod/store instructions.
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llvm-svn: 29943
2006-08-28 20:10:17 +00:00
Chris Lattner
b40511f27f
Add a --disable-compression option like llvm-link/llvm-as etc have
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llvm-svn: 29941
2006-08-28 17:31:55 +00:00
Chris Lattner
5571652921
remove extraneous space
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llvm-svn: 29940
2006-08-28 17:30:49 +00:00
Bill Wendling
9f4f5a7754
Spell naively with the i-Umlaut...
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llvm-svn: 29939
2006-08-28 03:04:05 +00:00
Bill Wendling
90f66e3344
Messed up and put a "To be written" in a section that was written.
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llvm-svn: 29938
2006-08-28 02:57:41 +00:00
Bill Wendling
cc6d652824
Added some preliminary text to the TargetJITInfo class section.
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Fixed some inconsistencies with format. Corrected some of the text.
Put code inside of "code" div tags.
llvm-svn: 29937
2006-08-28 02:26:32 +00:00
Owen Anderson
ee603f511f
Make LoopUnroll fold excessive BasicBlocks. This results in a significant speedup of
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gccas on 252.eon
llvm-svn: 29936
2006-08-28 02:09:46 +00:00
Reid Spencer
959705759f
Back out last revision which should not have been committed (yet).
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llvm-svn: 29935
2006-08-28 01:08:45 +00:00