05bea906c1
Revert my previous change on Local.cpp, instead, fix the bug on scalarrepl.
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If the instruction has no users, it is also not only used by debug info
and should not be deleted.
llvm-svn: 67194
2009-03-18 10:13:08 +00:00
64a6a092b1
Fix a bug.
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If I->use_empty(), this method should return false.
llvm-svn: 67180
2009-03-18 07:56:13 +00:00
0c970f94e9
Add "check/remove dbg var" helper routines.
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llvm-svn: 66223
2009-03-06 00:19:37 +00:00
738c60f259
Marking debug info intrinsics as not touching memory
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caused them to be considered trivially dead. Fix this.
llvm-svn: 65979
2009-03-03 23:30:00 +00:00
caf4485781
Enable scalar replacement of AllocaInst whose one of the user is dbg info.
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llvm-svn: 64207
2009-02-10 07:00:59 +00:00
02f58e1e8d
Revert rev. 63876. It is causing llvm-gcc bootstrap failure.
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llvm-svn: 63888
2009-02-05 21:46:41 +00:00
5922e26d1a
Ignore dbg intrinsics while propagating conditional expression info.
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llvm-svn: 63876
2009-02-05 19:15:39 +00:00
97f1720621
use precise getters
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llvm-svn: 63402
2009-01-30 18:21:13 +00:00
e9f6c355bf
rewrite RecursivelyDeleteTriviallyDeadInstructions to use a more efficient
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formulation that doesn't require set lookups or scanning a set.
llvm-svn: 60203
2008-11-28 01:20:46 +00:00
d4b5ba615e
remove some weirdness that came from the LSR code that has
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nothing to do with dead instruction elimination. No tests in
dejagnu depend on this, so I don't know what it was needed for.
llvm-svn: 60202
2008-11-28 00:58:15 +00:00
a1bbdff933
enhance RecursivelyDeleteTriviallyDeadInstructions to make
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PHIs dead if they are single-value.
llvm-svn: 60194
2008-11-27 23:18:11 +00:00
1cb4f72706
Enhance RecursivelyDeleteTriviallyDeadInstructions to optionally
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return a list of deleted instructions.
llvm-svn: 60193
2008-11-27 23:14:34 +00:00
c6c481cdfc
remove doConstantPropagation and dceInstruction, they are just
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wrappers around the interesting code and use an obscure iterator
abstraction that dates back many many years.
Move EraseDeadInstructions to Transforms/Utils and name it
RecursivelyDeleteTriviallyDeadInstructions.
llvm-svn: 60191
2008-11-27 22:57:53 +00:00
99d6809ac1
move MergeBasicBlockIntoOnlyPred to Transforms/Utils.
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llvm-svn: 60162
2008-11-27 07:43:12 +00:00
158ff2c4a9
Use Instruction::eraseFromParent().
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llvm-svn: 52606
2008-06-21 22:08:46 +00:00
e9ecc68d8f
API changes for class Use size reduction, wave 1.
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Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.
llvm-svn: 49277
2008-04-06 20:25:17 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
e96658392d
dead calls to llvm.stacksave can be deleted, even though they
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have potential side-effects.
llvm-svn: 45392
2007-12-29 00:59:12 +00:00
6e853bc73f
Move the GET_SIDE_EFFECT_INFO logic from isInstructionTriviallyDead
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to Instruction::mayWriteToMemory, fixing a FIXME, and helping
various places that call mayWriteToMemory directly.
llvm-svn: 40533
2007-07-26 16:06:08 +00:00
2ae054adb0
move a bunch of constant folding code f rom Transforms/Utils/Local.cpp into
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libanalysis/ConstantFolding.cpp.
llvm-svn: 33679
2007-01-30 23:45:45 +00:00
14789a92e1
remove now-dead code.
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llvm-svn: 33678
2007-01-30 23:29:47 +00:00
2c4610e4ca
Change constant folding APIs to take an optional TargetData, and change
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ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array
of operands + size, instead of an std::vector.
In some cases, switch to using a SmallVector instead of a vector.
This allows us to get rid of some special case gross code that was there
to avoid the cost of constructing a vector.
llvm-svn: 33670
2007-01-30 23:13:49 +00:00
cddc9dfe97
Implement review feedback for the ConstantBool->ConstantInt merge. Chris
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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
75b871fb1e
For PR1043:
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Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.
llvm-svn: 33073
2007-01-11 12:24:14 +00:00
266e42b312
For PR950:
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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
6c38f0bb07
For PR950:
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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
61feeb90f9
Remove redundant <cmath>.
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llvm-svn: 31561
2006-11-08 19:16:44 +00:00
fdff938a7e
For PR950:
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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
e0fc4dfc22
For PR950:
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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
bc3c879fcf
Refactor some code to expose an interface to constant fold and instruction given it's opcode, typeand operands.
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llvm-svn: 28517
2006-05-27 01:18:04 +00:00
0853700582
Revert a patch that is unsafe, due to out of range array accesses in inner
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array scopes possibly accessing valid memory in outer subscripts.
llvm-svn: 28478
2006-05-25 21:25:12 +00:00
a643d528bd
Patch for a new instcombine xform, patch contributed by Nick Lewycky!
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This implements Transforms/InstCombine/2006-05-10-InvalidIndexUndef.ll
llvm-svn: 28450
2006-05-24 17:34:30 +00:00
17bd60588c
Add supprot for shufflevector
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llvm-svn: 27513
2006-04-08 01:19:12 +00:00
70ec96fa32
Adjust to change in Intrinsics.gen interface.
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llvm-svn: 27344
2006-04-02 03:35:01 +00:00
60f6833376
use autogenerated side-effect information
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llvm-svn: 26673
2006-03-09 22:38:10 +00:00
027c18da98
ConstantFoldLoadThroughGEPConstantExpr wasn't handling pointers to
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packed types correctly.
llvm-svn: 25470
2006-01-19 23:53:23 +00:00
e6336a9b69
Constant folding support for the insertelement operation.
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llvm-svn: 25407
2006-01-17 20:07:07 +00:00
b4f9a6f110
For PR411:
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This patch is an incremental step towards supporting a flat symbol table.
It de-overloads the intrinsic functions by providing type-specific intrinsics
and arranging for automatically upgrading from the old overloaded name to
the new non-overloaded name. Specifically:
llvm.isunordered -> llvm.isunordered.f32, llvm.isunordered.f64
llvm.sqrt -> llvm.sqrt.f32, llvm.sqrt.f64
llvm.ctpop -> llvm.ctpop.i8, llvm.ctpop.i16, llvm.ctpop.i32, llvm.ctpop.i64
llvm.ctlz -> llvm.ctlz.i8, llvm.ctlz.i16, llvm.ctlz.i32, llvm.ctlz.i64
llvm.cttz -> llvm.cttz.i8, llvm.cttz.i16, llvm.cttz.i32, llvm.cttz.i64
New code should not use the overloaded intrinsic names. Warnings will be
emitted if they are used.
llvm-svn: 25366
2006-01-16 21:12:35 +00:00
82049eba2c
Add bswap intrinsics as documented in the Language Reference
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llvm-svn: 25309
2006-01-14 01:25:24 +00:00
5fba6e6696
it is ok to dce stacksave.
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llvm-svn: 25295
2006-01-13 21:31:54 +00:00
230044839d
Added support for the extractelement operation.
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llvm-svn: 25181
2006-01-10 19:05:34 +00:00
479911f971
Fix #include order
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llvm-svn: 24044
2005-10-27 16:34:00 +00:00
fe5f33b120
Move some constant folding code shared by Analysis and Transform passes
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into the LLVMAnalysis library.
This allows LLVMTranform and LLVMTransformUtils to be archives and linked
with LLVMAnalysis.a, which provides any missing definitions.
llvm-svn: 24036
2005-10-27 15:54:34 +00:00
ea7214b23d
Constant fold llvm.sqrt
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llvm-svn: 23487
2005-09-28 01:34:32 +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
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
5f4ef3c5a8
Eliminate all remaining tabs and trailing spaces.
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llvm-svn: 22523
2005-07-27 06:12:32 +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
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
b1c9317bb4
Remove trailing whitespace
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llvm-svn: 21427
2005-04-21 23:48:37 +00:00
96db59e48a
Enhance hasConstantValue to ignore undef values in phi nodes. This allows it
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to think that PHI[4, undef] == 4.
llvm-svn: 17096
2004-10-17 21:23:26 +00:00
7c16caa336
Changes For Bug 352
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Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
llvm-svn: 16137
2004-09-01 22:55:40 +00:00
1ea8447089
Use new IsNAN() wrapper.
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llvm-svn: 14340
2004-06-23 00:25:35 +00:00
46f60890a3
Comment out the isnan stuff until we get a proper autoconf test for it
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breaking the build on sparc is not acceptable.
llvm-svn: 14277
2004-06-21 06:17:21 +00:00
27b13253d9
I love the smell of a freshly broken PowerPC build in the morning.
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llvm-svn: 14206
2004-06-17 22:27:04 +00:00
f03f320b79
Fix compilation problem on freebsd. Problem noted by Vladimir Merzliakov in
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PR371
llvm-svn: 14203
2004-06-17 21:20:52 +00:00
20e09e5c7b
Um, did someone make a typo or something?
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llvm-svn: 14192
2004-06-15 23:09:50 +00:00
5a542aadc8
Remove support for the isnan intrinsic
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llvm-svn: 14186
2004-06-15 21:37:54 +00:00
21370771ba
Quick hack to get this file compiling again on Mac OS X. The right thing to do
...
is write an autoconf macro that checks whether __isnan or isnan actually works
**using the C++ compiler after #include <cmath>**, instead of doing it the easy
way with AC_CHECK_FUNCS().
llvm-svn: 14171
2004-06-14 06:33:19 +00:00
e395468ae5
Add constant folding capabilities to the isunordered intrinsic.
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llvm-svn: 14168
2004-06-13 01:23:56 +00:00
ec941f7abb
Constant fold the isnan intrinsic
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llvm-svn: 14150
2004-06-11 06:16:23 +00:00
c6e21fbd5c
Implement constant folding of fmod, which is used a lot in povray
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llvm-svn: 13823
2004-05-27 07:25:00 +00:00
06158d140c
Restructure call constant folding code a bit to make it simpler
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Add support for acos/asin/atan. 188.ammp contains three calls to acos with
constant arguments. Constant folding it allows elimination of those 3 calls
and three FP divisions of the results.
llvm-svn: 13821
2004-05-27 06:26:28 +00:00
f68f40ea42
Include cerrno (gcc-3.4 fix)
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llvm-svn: 13091
2004-04-21 16:11:40 +00:00
a43312d30b
Add support for evaluation of exp/log/log10/pow
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llvm-svn: 13011
2004-04-16 22:35:33 +00:00
174633b078
Include <cmath> for compatibility with gcc 3.0.x (the system compiler on
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Debian.)
llvm-svn: 12986
2004-04-16 15:57:32 +00:00
ca52d0468e
Add a simple call constant propagation interface.
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llvm-svn: 12919
2004-04-13 19:28:52 +00:00
cb015ee6c0
Add constant folding wrapper support for select instructions.
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llvm-svn: 12319
2004-03-12 05:53:03 +00:00
6b052f2154
Clean up #includes
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llvm-svn: 10799
2004-01-12 19:56:36 +00:00
429963742e
Remove use of ConstantExpr::getShift
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llvm-svn: 10792
2004-01-12 19:10:58 +00:00
2853a7ed22
Remove use of ConstantHandling
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llvm-svn: 10789
2004-01-12 18:35:03 +00:00
fc6c859a0c
Move llvm::ConstantFoldInstruction from VMCore to here, next to ConstantFoldTerminator
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llvm-svn: 10785
2004-01-12 18:25:22 +00:00
04efa4b155
Add new function
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llvm-svn: 10529
2003-12-19 05:56:28 +00:00
960707c335
Put all LLVM code into the llvm namespace, as per bug 109.
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llvm-svn: 9903
2003-11-11 22:41:34 +00:00
482202a601
Added LLVM project notice to the top of every C++ source file.
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Header files will be on the way.
llvm-svn: 9298
2003-10-20 19:43:21 +00:00
c54d608377
Implement SimplifyCFG/2003-08-17-FoldSwitch.ll:test5
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llvm-svn: 8093
2003-08-23 23:18:19 +00:00
821deeeffa
Implement folding of switch instructions.
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Implements SimplifyCFG/2003-08-17-FoldSwitch.ll
llvm-svn: 7923
2003-08-17 20:21:14 +00:00
031340a551
Fix bug: SimplifyCFG/2003-08-17-BranchFoldOrdering.ll
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llvm-svn: 7921
2003-08-17 19:41:53 +00:00
4b7e3364c7
The fixme is irrelevant: if that happens, the LLVM bytecode is malformed.
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This fixes testcase: SimplifyCFG/2003-08-17-BranchFold.ll
llvm-svn: 7919
2003-08-17 19:34:55 +00:00
373086db75
Hopefully, the final fix for `[Pp]ropogate'.
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llvm-svn: 6251
2003-05-20 21:01:22 +00:00
4869f3700e
Rename Instruction::hasSideEffects() -> mayWriteToMemory()
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llvm-svn: 5620
2003-02-24 20:48:32 +00:00
fda72b1aad
*** empty log message ***
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llvm-svn: 2777
2002-06-25 16:12:52 +00:00
ab038d44b0
Simplify the interface to local DCE and Constant prop
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llvm-svn: 2749
2002-05-26 20:18:18 +00:00
4b009adc77
Simplify interface to ConstantFoldTerminator
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llvm-svn: 2697
2002-05-21 20:04:50 +00:00
28537dff72
Add code pulled out of TransformInternals.cpp, ConstProp.cpp, and DCE.cpp
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llvm-svn: 2513
2002-05-07 18:07:59 +00:00
Zhou Sheng