2b8cbf319c
Update Visual Studio projects to reflect moved file.
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llvm-svn: 23998
2005-10-26 05:36:51 +00:00
bde3845548
DONT_BUILD_RELINKED is gone and implied by BUILD_ARCHIVE now
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llvm-svn: 23940
2005-10-24 02:26:13 +00:00
8c087e962c
Only build .a file versions of these libraries, instead of .a and .o versions.
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This should speed up build times.
llvm-svn: 23933
2005-10-24 01:59:48 +00:00
20b0754c41
Fix DemoteRegToStack on an invoke. This fixes PR634.
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llvm-svn: 23618
2005-10-04 00:44:01 +00:00
4c3b2b536c
Clean up the code a bit. Use isInstructionTriviallyDead to be more aggressive
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and more correct than use_empty(). This fixes PR635 and
SimplifyCFG/2005-10-02-InvokeSimplify.ll
llvm-svn: 23616
2005-10-03 23:43:43 +00:00
ea7214b23d
Constant fold llvm.sqrt
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llvm-svn: 23487
2005-09-28 01:34:32 +00:00
16cd356fb2
allow demotion to volatile values, add support for invoke
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llvm-svn: 23473
2005-09-27 19:39:00 +00:00
c13c7b9376
Move the ConstantFoldLoadThroughGEPConstantExpr function out of the InstCombine
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pass.
llvm-svn: 23444
2005-09-26 05:27:10 +00:00
499e33646e
remove some debugging code
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llvm-svn: 23411
2005-09-23 18:49:09 +00:00
c59a371d45
Fold two consequtive branches that share a common destination between them.
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This implements SimplifyCFG/branch-fold.ll, and is useful on ?:/min/max heavy
code
llvm-svn: 23410
2005-09-23 18:47:20 +00:00
3a978bf66d
simplify some logic further
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llvm-svn: 23408
2005-09-23 07:23:18 +00:00
cc14ebc17b
pull a bunch of logic out of SimplifyCFG into a helper fn
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llvm-svn: 23407
2005-09-23 06:39:30 +00:00
6c70106053
Start threading across blocks with code in them, so long as the code does
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not define a value that is used outside of it's block. This catches many
more simplifications, e.g. 854 in 176.gcc, 137 in vpr, etc.
This implements branch-phi-thread.ll:test3.ll
llvm-svn: 23397
2005-09-20 01:48:40 +00:00
f0bd8d0107
Implement merging of blocks with the same condition if the block has multiple
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predecessors. This implements branch-phi-thread.ll::test1
llvm-svn: 23395
2005-09-20 00:43:16 +00:00
049cb4482f
Reject a case we don't handle yet
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llvm-svn: 23393
2005-09-19 23:57:04 +00:00
a160924d57
remove debugging code :-/
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llvm-svn: 23392
2005-09-19 23:50:15 +00:00
748f903046
Implement SimplifyCFG/branch-phi-thread.ll, the most trivial case of threading
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control across branches with determined outcomes. More generality to follow.
This triggers a couple thousand times in specint.
llvm-svn: 23391
2005-09-19 23:49:37 +00:00
89c1dfc733
Teach SplitCriticalEdge to update LoopInfo if it is alive. This fixes
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a problem in LoopStrengthReduction, where it would split critical edges
then confused itself with outdated loop information.
llvm-svn: 22776
2005-08-13 01:38:43 +00:00
b7ebe65c56
Change break critical edges to not remove, then insert, PHI node entries.
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Instead, just update the BB in-place. This is both faster, and it prevents
split-critical-edges from shuffling the PHI argument list unneccesarily.
llvm-svn: 22765
2005-08-12 21:58:07 +00:00
257efb2ad3
This code can handle non-dominating instructions
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llvm-svn: 22667
2005-08-05 00:57:45 +00:00
b392321cae
Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into
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BasicBlock's removePredecessor routine. This requires shuffling around
the definition and implementation of hasContantValue from Utils.h,cpp into
Instructions.h,cpp
llvm-svn: 22664
2005-08-04 23:24:19 +00:00
d683bdd0f8
Fix Transforms/SimplifyCFG/2005-08-03-PHIFactorCrash.ll, a problem that
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occurred while bugpointing another testcase
llvm-svn: 22621
2005-08-03 17:59:45 +00:00
2dbf1960ff
Finally, add the required constraint checks to fix Transforms/SimplifyCFG/2005-08-01-PHIUpdateFail.ll
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the right way
llvm-svn: 22615
2005-08-03 00:59:12 +00:00
908036942c
Simplify some code, add the correct pred checks
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llvm-svn: 22613
2005-08-03 00:38:27 +00:00
982b75c061
Refactor code out of PropagatePredecessorsForPHIs, turning it into a pure function with no side-effects
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llvm-svn: 22612
2005-08-03 00:29:26 +00:00
1f047fd513
use splice instead of remove/insert to avoid some symtab operations
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llvm-svn: 22611
2005-08-03 00:23:42 +00:00
76dc204488
move two functions up in the file, use SafeToMergeTerminators to eliminate
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some duplicated code
llvm-svn: 22610
2005-08-03 00:19:45 +00:00
733d6704ce
Rip some code out of the main SimplifyCFG function into a subfunction and
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call it from the only place it is live. No functionality changes.
llvm-svn: 22609
2005-08-03 00:11:16 +00:00
ac594de8dc
Disable this patch:
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http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050801/027345.html
This breaks real programs and only fixes an obscure regression testcase. A
real fix is in development.
llvm-svn: 22606
2005-08-02 23:31:38 +00:00
eee90f7eb4
Change a place to use an arbitrary value instead of null, when possible
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llvm-svn: 22605
2005-08-02 23:29:23 +00:00
4fd3e16cbd
This code was very close, but not quite right. It did not take into
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consideration the case where a reference in an unreachable block could
occur. This fixes Transforms/SimplifyCFG/2005-08-01-PHIUpdateFail.ll,
something I ran into while bugpoint'ing another pass.
llvm-svn: 22584
2005-08-02 03:24:05 +00:00
5f4ef3c5a8
Eliminate all remaining tabs and trailing spaces.
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llvm-svn: 22523
2005-07-27 06:12:32 +00:00
937c71f2b3
Fix PR590 and Transforms/Mem2Reg/2005-06-30-ReadBeforeWrite.ll.
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The optimization for locally used allocas was not safe for allocas that
were read before they were written. This change disables that optimization
in that case.
llvm-svn: 22318
2005-06-30 07:29:44 +00:00
d4b103107e
prevent DCE of vaarg intrinsics. This should take care of most regressions
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llvm-svn: 22263
2005-06-19 14:41:20 +00:00
5e735294bf
Don't crash on: X = phi (X, X).
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This fixes PR584 and Transforms/SimplifyCFG/2005-06-16-PHICrash.ll
llvm-svn: 22232
2005-06-17 01:45:53 +00:00
19f9f32a5c
Fix Transforms/SimplifyCFG/switch-simplify-crash.ll
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llvm-svn: 22158
2005-05-20 22:19:54 +00:00
bcefcf8552
Make sure to preserve the calling convention when changing an invoke into
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a call. This fixes Prolangs-C++/deriv2, kimwitu++, and Misc-C++/bigfib
on X86 with -enable-x86-fastcc.
llvm-svn: 22023
2005-05-14 12:21:56 +00:00
21d1dde72a
wrap long lines, preserve calling conventions when cloning functions and
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turning calls into invokes
llvm-svn: 21797
2005-05-09 01:04:34 +00:00
7effa0ed06
BAD typeo which caused many testsuite failures last night. Note to self, do
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not change code after testing it without retesting!
llvm-svn: 21741
2005-05-06 17:13:16 +00:00
9f3dced2c7
Implement Transforms/Inline/inline-tail.ll
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llvm-svn: 21736
2005-05-06 06:47:52 +00:00
a36d525741
DCE intrinsic instructions without side effects.
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llvm-svn: 21719
2005-05-06 05:27:34 +00:00
c968ea0495
Remove optimizations that don't require both operands to be constant. These
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are moved to simplify-libcalls pass.
llvm-svn: 21614
2005-04-29 05:55:35 +00:00
ed55a6b5e0
* Add constant folding for additional floating point library calls such as
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sinh, cosh, etc.
* Make the name comparisons for the fp libcalls a little more efficient by
switching on the first character of the name before doing comparisons.
llvm-svn: 21611
2005-04-28 23:01:59 +00:00
82639853c0
Eliminate tabs and trailing spaces
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llvm-svn: 21480
2005-04-23 21:38:35 +00:00
b1c9317bb4
Remove trailing whitespace
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llvm-svn: 21427
2005-04-21 23:48:37 +00:00
7ceb081f3f
Improve doxygen documentation, patch contributed by Evan Jones!
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llvm-svn: 21393
2005-04-21 16:04:49 +00:00
b38b443b15
Teach simplifycfg that setcc is cheap and non-trapping, so that it can
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convert this:
%tmp.1 = seteq int %i, 0 ; <bool> [#uses=1]
br bool %tmp.1, label %shortcirc_done, label %shortcirc_next
shortcirc_next: ; preds = %entry
%tmp.4 = seteq int %j, 0 ; <bool> [#uses=1]
br label %shortcirc_done
shortcirc_done: ; preds = %shortcirc_next, %entry
%shortcirc_val = phi bool [ %tmp.4, %shortcirc_next ], [ true, %entry ] ; <bool> [#uses=1]
to this:
%tmp.1 = seteq int %i, 0 ; <bool> [#uses=1]
%tmp.4 = seteq int %j, 0 ; <bool> [#uses=1]
%shortcirc_val = select bool %tmp.1, bool true, bool %tmp.4 ; <bool> [#uses=1]
... which is later simplified by instcombine into an or.
llvm-svn: 21388
2005-04-21 05:31:13 +00:00
95f16a3ac4
Get rid of this for_each loop
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llvm-svn: 21253
2005-04-12 18:51:33 +00:00
7b9020a059
Fix the missing symbols problem Bill was hitting. Patch contributed by
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Bill Wendling!!
llvm-svn: 20649
2005-03-17 15:38:16 +00:00
531f9e92d4
This mega patch converts us from using Function::a{iterator|begin|end} to
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using Function::arg_{iterator|begin|end}. Likewise Module::g* -> Module::global_*.
This patch is contributed by Gabor Greif, thanks!
llvm-svn: 20597
2005-03-15 04:54:21 +00:00
Jeff Cohen