732 Commits

Author SHA1 Message Date
Nick Lewycky
42445be0df Firstly, having a BranchInst isn't exclusive with having an unwind_to.
Secondly, we have to check whether the branch is actually pointing to the block
with the unwind in it. We could have gotten here because of the unwind_to alone.

llvm-svn: 48099
2008-03-09 07:50:37 +00:00
Nick Lewycky
f3d637fa14 A BB that unwind_to an "unwind" inst is that same as one that doesn't unwind_to
at all.

llvm-svn: 48096
2008-03-09 07:36:38 +00:00
Nick Lewycky
5ce9b521d7 Update the inliner and simplifycfg to handle unwind_to.
llvm-svn: 48086
2008-03-09 05:10:13 +00:00
Anton Korobeynikov
1bfd121321 Make Transforms to be 4.3 warnings-clean
llvm-svn: 47371
2008-02-20 11:26:25 +00:00
Chris Lattner
6b39cb907b switch simplifycfg from using vectors for most things to smallvectors,
this speeds it up 2.3% on eon.

llvm-svn: 47261
2008-02-18 07:42:56 +00:00
Chris Lattner
f391883670 don't hoist FP additions into unconditional adds + selects. This
could theoretically introduce a trap, but is also a performance issue.
This speeds up ptrdist/ks by 8%.

llvm-svn: 45533
2008-01-03 07:25:26 +00:00
Chris Lattner
f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Devang Patel
7a2c66b11e If succ has succ itself as one of the predecessors then do
not merge current bb and succ even if bb's terminator is
unconditional branch to succ.

llvm-svn: 45305
2007-12-22 01:32:53 +00:00
Duncan Sands
ad0ea2d430 Fix PR1146: parameter attributes are longer part of
the function type, instead they belong to functions
and function calls.  This is an updated and slightly
corrected version of Reid Spencer's original patch.
The only known problem is that auto-upgrading of
bitcode files doesn't seem to work properly (see
test/Bitcode/AutoUpgradeIntrinsics.ll).  Hopefully
a bitcode guru (who might that be? :) ) will fix it.

llvm-svn: 44359
2007-11-27 13:23:08 +00:00
David Greene
17a5dfe6f7 New CallInst interface to address GLIBCXX_DEBUG errors caused by
indexing an empty std::vector.

Updates to all clients.

llvm-svn: 40660
2007-08-01 03:43:44 +00:00
Dan Gohman
30978078bf Minor comment cleanups.
llvm-svn: 37321
2007-05-24 14:36:04 +00:00
Chris Lattner
77a3edcb92 remove use of Instruction::getNext
llvm-svn: 36199
2007-04-17 17:47:54 +00:00
Chris Lattner
b7b75145f1 reduce use of std::set
llvm-svn: 35576
2007-04-02 01:44:59 +00:00
Dan Gohman
dcb291faa4 Change uses of Function::front to Function::getEntryBlock for readability.
llvm-svn: 35265
2007-03-22 16:38:57 +00:00
Reid Spencer
bb38d79ad6 Make sorting of ConstantInt be APInt clean through use of ult function.
llvm-svn: 34853
2007-03-02 23:01:14 +00:00
Chris Lattner
a06a8fd2d7 Eliminate use of ctors that take vectors.
llvm-svn: 34219
2007-02-13 02:10:56 +00:00
Chris Lattner
8dd4cae4f8 simplify code by using Value::takeName
llvm-svn: 34177
2007-02-11 01:37:51 +00:00
Chris Lattner
024f4ab383 Adjust #includes to match movement of constant folding code from transformutils to libanalysis.
llvm-svn: 33680
2007-01-30 23:46:24 +00:00
Reid Spencer
a94d394ad2 For PR1043:
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*

This also fixes PR1120.

Patch by Sheng Zhou.

llvm-svn: 33370
2007-01-19 21:13:56 +00:00
Chris Lattner
03c4953cdd rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger.
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

llvm-svn: 33225
2007-01-15 02:27:26 +00:00
Chris Lattner
1942249c5b Eliminate calls to isInteger, generalizing code and tightening checks as needed.
llvm-svn: 33218
2007-01-15 01:55:30 +00:00
Reid Spencer
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
Reid Spencer
542964f55b Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
llvm-svn: 33076
2007-01-11 18:21:29 +00:00
Zhou Sheng
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
Reid Spencer
266e42b312 For PR950:
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.

llvm-svn: 32751
2006-12-23 06:05:41 +00:00
Reid Spencer
6c38f0bb07 For PR950:
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931
2006-11-27 01:05:10 +00:00
Bill Wendling
4ae401074c Remove #include <iostream> and use llvm_* streams instead.
llvm-svn: 31925
2006-11-26 10:17:54 +00:00
Chris Lattner
95adf8f1da Do not convert massive blocks on phi nodes into select statements. Instead
only do these transformations if there are a small number of phi's.
This speeds up Ptrdist/ks from 2.35s to 2.19s on my mac pro.

llvm-svn: 31853
2006-11-18 19:19:36 +00:00
Reid Spencer
fdff938a7e For PR950:
This patch converts the old SHR instruction into two instructions,
AShr (Arithmetic) and LShr (Logical). The Shr instructions now are not
dependent on the sign of their operands.

llvm-svn: 31542
2006-11-08 06:47:33 +00:00
Reid Spencer
de46e48420 For PR786:
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
2006-11-02 20:25:50 +00:00
Chris Lattner
fc519cd2d1 Fix SimplifyCFG/2006-10-29-InvokeCrash.ll, a crash compiling QT.
llvm-svn: 31284
2006-10-29 21:21:20 +00:00
Reid Spencer
e0fc4dfc22 For PR950:
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063
2006-10-20 07:07:24 +00:00
Chris Lattner
b8b11599dd Fix SimplifyCFG/2006-10-19-UncondDiv.ll by disabling a bad xform.
llvm-svn: 31061
2006-10-20 00:42:07 +00:00
Chris Lattner
c9009d917d Fix PR867 (and maybe 868) and testcsae:
Transforms/SimplifyCFG/2006-08-03-Crash.ll

llvm-svn: 29515
2006-08-03 21:40:24 +00:00
Chris Lattner
b5c9d7a0af Fix an infinite loop on Transforms/SimplifyCFG/2006-06-12-InfLoop.ll
llvm-svn: 28758
2006-06-12 20:18:01 +00:00
Chris Lattner
35515557c7 remove some dead code identified by coverity
llvm-svn: 28289
2006-05-14 18:45:44 +00:00
Chris Lattner
3237da073e remove dead variables
llvm-svn: 28286
2006-05-14 18:33:57 +00:00
Chris Lattner
d95665188b Fix Transforms/SimplifyCFG/2006-02-17-InfiniteUnroll.ll
llvm-svn: 26275
2006-02-18 00:33:17 +00:00
Chris Lattner
469640e506 Add explicit #includes of <iostream>
llvm-svn: 25509
2006-01-22 22:53:01 +00:00
Chris Lattner
2820b8c855 Fix SimplifyCFG/2005-12-03-IncorrectPHIFold.ll
llvm-svn: 24581
2005-12-03 18:25:58 +00:00
Chris Lattner
4c3b2b536c Clean up the code a bit. Use isInstructionTriviallyDead to be more aggressive
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
Chris Lattner
499e33646e remove some debugging code
llvm-svn: 23411
2005-09-23 18:49:09 +00:00
Chris Lattner
c59a371d45 Fold two consequtive branches that share a common destination between them.
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
Chris Lattner
3a978bf66d simplify some logic further
llvm-svn: 23408
2005-09-23 07:23:18 +00:00
Chris Lattner
cc14ebc17b pull a bunch of logic out of SimplifyCFG into a helper fn
llvm-svn: 23407
2005-09-23 06:39:30 +00:00
Chris Lattner
6c70106053 Start threading across blocks with code in them, so long as the code does
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
Chris Lattner
f0bd8d0107 Implement merging of blocks with the same condition if the block has multiple
predecessors.  This implements branch-phi-thread.ll::test1

llvm-svn: 23395
2005-09-20 00:43:16 +00:00
Chris Lattner
049cb4482f Reject a case we don't handle yet
llvm-svn: 23393
2005-09-19 23:57:04 +00:00
Chris Lattner
a160924d57 remove debugging code :-/
llvm-svn: 23392
2005-09-19 23:50:15 +00:00
Chris Lattner
748f903046 Implement SimplifyCFG/branch-phi-thread.ll, the most trivial case of threading
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