81a752aa95
check in the BigBlock local register allocator
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llvm-svn: 37703
2007-06-22 08:27:12 +00:00
f6e21871ad
Avoid excessive calls to find_leader when calculating AVAIL_OUT. This reduces the time to optimize 403.gcc from 23.5s to 21.9s.
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llvm-svn: 37702
2007-06-22 03:14:03 +00:00
e3c4419953
std::set is really really terrible. Switch to SmallPtrSet to reduce compile time. For Duraid's example. The overall isel time is reduced from 0.6255 sec to 0.1876 sec.
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llvm-svn: 37701
2007-06-22 01:35:51 +00:00
485531ea9b
Quote complex names for Darwin X86 and ARM.
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llvm-svn: 37700
2007-06-22 00:54:56 +00:00
d50a29d613
Reserve space in vectors before topologically sorting into them. This improves the time to optimize 403.gcc from 28s to 23.5s.
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llvm-svn: 37699
2007-06-22 00:43:22 +00:00
28a2d449fa
Make a bunch of optimizations for compile time to GVNPRE, including smarter set unions, deferring blocks rather than computing maximal sets, and smarter use of sets. With these enhancements, the time to optimize 273.perlbmk goes from 5.3s to 2.7s.
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llvm-svn: 37698
2007-06-22 00:20:30 +00:00
6d7b6f1ab8
Fix a bug in SmallPtrSet that was causing GVNPRE to enter an infinite loop.
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llvm-svn: 37697
2007-06-22 00:11:18 +00:00
836e8f3f39
Two changes:
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1. Make SmallPtrSet::erase faster in the small case by replacing a memmove
with a pointer copy.
2. Fix a bug where the null terminator at the end of the array in the small
case was not copied
llvm-svn: 37696
2007-06-21 23:23:32 +00:00
703de8fea8
CallGraphSCCPass manager may require other passes.
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Use schedulePass() to accomodate these requirement instead of directly
assigning a manager to new CallGraph PassManager.
llvm-svn: 37695
2007-06-21 22:29:02 +00:00
7c3a5513f7
Have internal df_iterator's use SmallPtrSet instead of std::set. This provides compile time speedups to any pass using df_iterator.
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llvm-svn: 37694
2007-06-21 21:25:36 +00:00
e15ea75168
Fix tests.
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llvm-svn: 37693
2007-06-21 18:22:42 +00:00
fb032b176b
Significantly improve the documentation of the instcombine divide/compare
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transformation. Also, keep track of which end of the integer interval overflows
occur on. This fixes Transforms/InstCombine/2007-06-21-DivCompareMiscomp.ll
and rdar://5278853, a miscompilation of perl.
llvm-svn: 37692
2007-06-21 18:11:19 +00:00
181ebd6f88
new testcase miscompiled by instcombine, reduced from perl
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llvm-svn: 37691
2007-06-21 18:09:25 +00:00
2ff912bf33
Change lots of sets from std::set to SmallPtrSet. This reduces the time required to optimize 253.perlbmk from 10.9s to 5.3s.
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llvm-svn: 37690
2007-06-21 17:57:53 +00:00
d5258a23a5
Move code to update dominator information after basic block is split
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from LoopSimplify.cpp to Dominator.cpp
llvm-svn: 37689
2007-06-21 17:23:45 +00:00
8e8d34b220
Tidy up ValueType names in comments.
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llvm-svn: 37688
2007-06-21 14:48:26 +00:00
04deef3a49
Rename TargetLowering::getNumElements and friends to
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TargetLowering::getNumRegisters and similar, to avoid confusion with
the actual number of elements for vector types.
llvm-svn: 37687
2007-06-21 14:42:22 +00:00
5fcb5a5c74
New tests.
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llvm-svn: 37686
2007-06-21 07:40:00 +00:00
aa5f5d960d
Xforms:
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(add (select cc, 0, c), x) -> (select cc, x, (add, x, c))
(sub x, (select cc, 0, c)) -> (select cc, x, (sub, x, c))
llvm-svn: 37685
2007-06-21 07:39:16 +00:00
27876a3ff9
Eliminate a redundant check. This speeds up optimization of 253.perlbmk from 13.5 seconds to 10.9 seconds.
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llvm-svn: 37683
2007-06-21 01:59:05 +00:00
fd5683ad7a
Comment-ize the functions in GVNPRE.
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llvm-svn: 37681
2007-06-21 00:19:05 +00:00
3bbec59e8b
refactor a bunch of code out of visitICmpInstWithInstAndIntCst into its own
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routine.
llvm-svn: 37679
2007-06-20 23:46:26 +00:00
06c1e585c9
Split runOnFunction into many smaller functions. This make it easier to get accurate performance analysis of GVNPRE.
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llvm-svn: 37678
2007-06-20 22:10:02 +00:00
872bf1bdc3
Modify deleting global variable with an even easier way.
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llvm-svn: 37676
2007-06-20 20:46:37 +00:00
eeff910244
Update AnalysisGroup documentation to document restriction that allows
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only one ImmutablePass in a group.
llvm-svn: 37675
2007-06-20 18:51:14 +00:00
1a08cf311e
Add blurb on deleting global variables.
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llvm-svn: 37674
2007-06-20 18:33:15 +00:00
b0714bb7bb
Make GVNPRE accurate report whether it modified the function or not.
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llvm-svn: 37673
2007-06-20 18:30:20 +00:00
85010166a6
Added some if-conversion tests.
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llvm-svn: 37672
2007-06-20 18:26:15 +00:00
7b0fb44ca9
Get rid of an unneeded helper function.
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llvm-svn: 37670
2007-06-20 00:43:33 +00:00
77d61e6f6d
Be more conservative of duplicating blocks.
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llvm-svn: 37669
2007-06-19 23:55:02 +00:00
1ad2c10215
Use a DenseMap instead of an std::map for the value numbering. This reduces the time to optimize lencod on a PPC Debug build from ~300s to ~140s.
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llvm-svn: 37668
2007-06-19 23:23:54 +00:00
2320d430bd
Make dependsOnInvoke much more specific in what it tests, which in turn make it much faster to run. This reduces the time to optimize lencondwith a debug build on PPC from ~450s to ~300s.
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llvm-svn: 37667
2007-06-19 23:07:16 +00:00
c655839d71
Moved Inliner.h to include/llvm/Transforms/IPO/InlinerPass.h
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llvm-svn: 37666
2007-06-19 22:31:52 +00:00
ab11b1c702
Inliner pass header file was moved.
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llvm-svn: 37665
2007-06-19 22:29:50 +00:00
39be2d896d
Move inliner pass header file.
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llvm-svn: 37664
2007-06-19 22:29:02 +00:00
a955c02c9b
Avoid if-converting simple block that ends with unconditional branch or fallthrough unless it branches / falls to the 'false' block. Not profitable, may end up increasing code size.
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llvm-svn: 37660
2007-06-19 21:45:13 +00:00
c3c949b473
Allow predicated immediate ARM to ARM calls.
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llvm-svn: 37659
2007-06-19 21:05:09 +00:00
cd74c3ea7c
Fix pr1448
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llvm-svn: 37658
2007-06-19 16:46:48 +00:00
32f53bbd85
Rename ScalarEvolution::deleteInstructionFromRecords to
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deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.
llvm-svn: 37657
2007-06-19 14:28:31 +00:00
a7644dd9b9
Pass a SelectionDAG into SDNode::dump everywhere it's used, in prepration
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for needing the DAG node to print pre-legalize extended value types, and
to get better debug messages with target-specific nodes.
llvm-svn: 37656
2007-06-19 14:13:56 +00:00
1370faf889
Handle constants in phi nodes properly. This fixes test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll
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llvm-svn: 37655
2007-06-19 07:35:36 +00:00
b4777f087a
silence warning when assertions are disabled.
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llvm-svn: 37654
2007-06-19 06:40:46 +00:00
0b7c12be82
Testcase for instances where a constant only occurs as an operand to a phi node.
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llvm-svn: 37653
2007-06-19 05:55:01 +00:00
5551482f16
don't use binutils 2.17
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llvm-svn: 37652
2007-06-19 05:52:36 +00:00
37228f6ce5
document and hide two options.
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llvm-svn: 37651
2007-06-19 05:47:49 +00:00
7936d91f70
describe an argument, hide it.
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llvm-svn: 37650
2007-06-19 05:46:06 +00:00
09a33a4f64
silence a bogus warning Duraid ran into.
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llvm-svn: 37649
2007-06-19 05:43:49 +00:00
3552c9e845
Add a new testcase for memory corruption issues.
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llvm-svn: 37648
2007-06-19 05:41:22 +00:00
91c54950b3
Be careful to erase values from all of the appropriate sets when they're not needed anymore. This fixes a few more memory-related issues.
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llvm-svn: 37647
2007-06-19 05:37:32 +00:00
b9cbaed623
Remember to clear the maximal sets between functions.
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Thanks to Nicholas for valgrinding this.
llvm-svn: 37646
2007-06-19 04:32:55 +00:00
Duraid Madina