ffb83a155e
Avoid making the transformation enabled by my last patch if the new destinations have phi nodes.
...
llvm-svn: 69121
2009-04-15 00:43:54 +00:00
5ebf2acd84
Optimize conditional branch on i1 phis with non-constant inputs.
...
This turns:
eq:
%3 = icmp eq i32 %1, %2
br label %join
ne:
%4 = icmp ne i32 %1, %2
br label %join
join:
%5 = phi i1 [%3, %eq], [%4, %ne]
br i1 %5, label %yes, label %no
=>
eq:
%3 = icmp eq i32 %1, %2
br i1 %3, label %yes, label %no
ne:
%4 = icmp ne i32 %1, %2
br i1 %4, label %yes, label %no
llvm-svn: 69102
2009-04-14 23:40:03 +00:00
0bf1ded7bd
Add comment to emphasize that the while body is empty.
...
llvm-svn: 66115
2009-03-05 01:08:35 +00:00
f009a51794
Insert space to avoid warning and make code more readable.
...
llvm-svn: 64003
2009-02-07 03:36:02 +00:00
409b794cfe
Ignore dbg intrinsics while propagating conditional expression info. Take 2.
...
llvm-svn: 63898
2009-02-05 23:32:52 +00:00
02f58e1e8d
Revert rev. 63876. It is causing llvm-gcc bootstrap failure.
...
llvm-svn: 63888
2009-02-05 21:46:41 +00:00
58cb603d2a
Remove dead blocks in the end.
...
llvm-svn: 63880
2009-02-05 19:59:42 +00:00
5922e26d1a
Ignore dbg intrinsics while propagating conditional expression info.
...
llvm-svn: 63876
2009-02-05 19:15:39 +00:00
9449991c4f
Handle single-entry phi nodes gracefully in condprop.
...
llvm-svn: 62985
2009-01-26 02:18:20 +00:00
dc3f6f2c12
Factor some code into a new FoldSingleEntryPHINodes method.
...
llvm-svn: 60501
2008-12-03 19:44:02 +00:00
a79db30d28
Tidy up several unbeseeming casts from pointer to intptr_t.
...
llvm-svn: 55779
2008-09-04 17:05:41 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
...
several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
d7cb625a9e
Fix PR1575 and test/Transforms/CondProp/2007-08-01-InvalidRead.ll
...
llvm-svn: 40720
2007-08-02 04:47:05 +00:00
a51e0a3d8d
Fix thinko. Update return status appropriately.
...
llvm-svn: 40546
2007-07-26 20:21:42 +00:00
e7da2d6ac3
Fix typo in comment.
...
llvm-svn: 36873
2007-05-06 13:37:16 +00:00
8c78a0bff0
Drop 'const'
...
llvm-svn: 36662
2007-05-03 01:11:54 +00:00
e95c6ad802
Use 'static const char' instead of 'static const int'.
...
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
llvm-svn: 36652
2007-05-02 21:39:20 +00:00
09f162ca6a
Do not use typeinfo to identify pass in pass manager.
...
llvm-svn: 36632
2007-05-01 21:15:47 +00:00
2e54a15943
Prefer non-virtual calls to ConstantInt::isZero over virtual calls to
...
Constant::isNullValue() in situations where it is possible.
llvm-svn: 34821
2007-03-02 00:28:52 +00:00
fa63226751
Although probably not necessary, guard against a potential assertion by
...
using isNullValue() instead of getZExtValue() == 0.
llvm-svn: 34815
2007-03-01 21:54:37 +00:00
557ab15e71
Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
...
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.
llvm-svn: 33939
2007-02-05 23:32:05 +00:00
e3721e3002
eliminate redundant check
...
llvm-svn: 33132
2007-01-12 18:35:11 +00:00
cddc9dfe97
Implement review feedback for the ConstantBool->ConstantInt merge. Chris
...
recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.
llvm-svn: 33110
2007-01-12 04:24:46 +00:00
542964f55b
Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
...
llvm-svn: 33076
2007-01-11 18:21:29 +00:00
75b871fb1e
For PR1043:
...
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.
llvm-svn: 33073
2007-01-11 12:24:14 +00:00
79a42ac941
Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic
...
converted, we lose a static initializer. This also allows GCC to emit warnings
about unused statistics.
llvm-svn: 32690
2006-12-19 21:40:18 +00:00
700b873130
Detemplatize the Statistic class. The only type it is instantiated with
...
is 'unsigned'.
llvm-svn: 32279
2006-12-06 17:46:33 +00:00
5dbf43c983
Removed #include <iostream> and replaced with llvm_* streams.
...
llvm-svn: 31923
2006-11-26 09:46:52 +00:00
2cb4f83b38
There can be more than one PHINode at the start of the block.
...
llvm-svn: 31362
2006-11-01 23:04:45 +00:00
44519a8feb
Handle PHINode with only one incoming value.
...
This fixes http://llvm.org/bugs/show_bug.cgi?id=979
llvm-svn: 31358
2006-11-01 22:26:43 +00:00
c2d3d3112e
eliminate RegisterOpt. It does the same thing as RegisterPass.
...
llvm-svn: 29925
2006-08-27 22:42:52 +00:00
6441cf93c9
Handle single-entry PHI nodes correctly. This fixes PR877 and
...
Transforms/CondProp/2006-08-14-SingleEntryPhiCrash.ll
llvm-svn: 29673
2006-08-14 21:38:05 +00:00
b392321cae
Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into
...
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
b1c9317bb4
Remove trailing whitespace
...
llvm-svn: 21427
2005-04-21 23:48:37 +00:00
ee84413730
silence a bogus warning
...
llvm-svn: 21320
2005-04-18 05:26:21 +00:00
16a50fd0a0
a new simple pass, which will be extended to be more useful in the future.
...
This pass forward branches through conditions when it can show that the
conditions is either always true or false for a predecessor. This currently
only handles the most simple cases of this, but is successful at threading
across 2489 branches and 65 switch instructions in 176.gcc, which isn't bad.
llvm-svn: 21306
2005-04-15 19:28:32 +00:00
Evan Cheng