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Commit Graph

71 Commits

Author SHA1 Message Date
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Chris Lattner
2369d2f4ab dead calls to llvm.stacksave can be deleted, even though they
have potential side-effects.

llvm-svn: 45392
2007-12-29 00:59:12 +00:00
Dan Gohman
298f3fd9b7 Move the GET_SIDE_EFFECT_INFO logic from isInstructionTriviallyDead
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
Chris Lattner
1765c2eed8 move a bunch of constant folding code f rom Transforms/Utils/Local.cpp into
libanalysis/ConstantFolding.cpp.

llvm-svn: 33679
2007-01-30 23:45:45 +00:00
Chris Lattner
4c01d0055a remove now-dead code.
llvm-svn: 33678
2007-01-30 23:29:47 +00:00
Chris Lattner
659afcca15 Change constant folding APIs to take an optional TargetData, and change
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
Reid Spencer
3d986f6487 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
Zhou Sheng
23d24526b2 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
4428c3483b 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
992d9788b3 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
Jim Laskey
28fec74f1b Remove redundant <cmath>.
llvm-svn: 31561
2006-11-08 19:16:44 +00:00
Reid Spencer
da1f5b882a 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
d414793dbc 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
1835cfb302 Refactor some code to expose an interface to constant fold and instruction given it's opcode, typeand operands.
llvm-svn: 28517
2006-05-27 01:18:04 +00:00
Chris Lattner
d3eff919d8 Revert a patch that is unsafe, due to out of range array accesses in inner
array scopes possibly accessing valid memory in outer subscripts.

llvm-svn: 28478
2006-05-25 21:25:12 +00:00
Chris Lattner
0b38bc2a99 Patch for a new instcombine xform, patch contributed by Nick Lewycky!
This implements Transforms/InstCombine/2006-05-10-InvalidIndexUndef.ll

llvm-svn: 28450
2006-05-24 17:34:30 +00:00
Chris Lattner
a0a718c0cc Add supprot for shufflevector
llvm-svn: 27513
2006-04-08 01:19:12 +00:00
Chris Lattner
e314cf19ba Adjust to change in Intrinsics.gen interface.
llvm-svn: 27344
2006-04-02 03:35:01 +00:00
Chris Lattner
a7d7a291d0 use autogenerated side-effect information
llvm-svn: 26673
2006-03-09 22:38:10 +00:00
Robert Bocchino
40c6c91f56 ConstantFoldLoadThroughGEPConstantExpr wasn't handling pointers to
packed types correctly.

llvm-svn: 25470
2006-01-19 23:53:23 +00:00
Robert Bocchino
443661ec6b Constant folding support for the insertelement operation.
llvm-svn: 25407
2006-01-17 20:07:07 +00:00
Reid Spencer
3cecd3c4cf For PR411:
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
Nate Begeman
4750001146 Add bswap intrinsics as documented in the Language Reference
llvm-svn: 25309
2006-01-14 01:25:24 +00:00
Chris Lattner
818f217fad it is ok to dce stacksave.
llvm-svn: 25295
2006-01-13 21:31:54 +00:00
Robert Bocchino
9a57550e4e Added support for the extractelement operation.
llvm-svn: 25181
2006-01-10 19:05:34 +00:00
Chris Lattner
64f57e9d14 Fix #include order
llvm-svn: 24044
2005-10-27 16:34:00 +00:00
John Criswell
d6538108e8 Move some constant folding code shared by Analysis and Transform passes
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
Chris Lattner
6ce1d7dabb Constant fold llvm.sqrt
llvm-svn: 23487
2005-09-28 01:34:32 +00:00
Chris Lattner
d8b3c644e1 Move the ConstantFoldLoadThroughGEPConstantExpr function out of the InstCombine
pass.

llvm-svn: 23444
2005-09-26 05:27:10 +00:00
Nate Begeman
ef41400067 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
Jeff Cohen
bd51ec7461 Eliminate all remaining tabs and trailing spaces.
llvm-svn: 22523
2005-07-27 06:12:32 +00:00
Andrew Lenharth
cdaaa66e7d prevent DCE of vaarg intrinsics. This should take care of most regressions
llvm-svn: 22263
2005-06-19 14:41:20 +00:00
Chris Lattner
b953e27f85 DCE intrinsic instructions without side effects.
llvm-svn: 21719
2005-05-06 05:27:34 +00:00
Reid Spencer
ff5cc3cb16 Remove optimizations that don't require both operands to be constant. These
are moved to simplify-libcalls pass.

llvm-svn: 21614
2005-04-29 05:55:35 +00:00
Reid Spencer
fb6e0590a8 * Add constant folding for additional floating point library calls such as
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
Misha Brukman
53e199440e Remove trailing whitespace
llvm-svn: 21427
2005-04-21 23:48:37 +00:00
Chris Lattner
306dd8a44a Enhance hasConstantValue to ignore undef values in phi nodes. This allows it
to think that PHI[4, undef] == 4.

llvm-svn: 17096
2004-10-17 21:23:26 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352
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
Brian Gaeke
5da0956b27 Use new IsNAN() wrapper.
llvm-svn: 14340
2004-06-23 00:25:35 +00:00
Chris Lattner
892df61ed3 Comment out the isnan stuff until we get a proper autoconf test for it
breaking the build on sparc is not acceptable.

llvm-svn: 14277
2004-06-21 06:17:21 +00:00
Brian Gaeke
4a904bfdcc I love the smell of a freshly broken PowerPC build in the morning.
llvm-svn: 14206
2004-06-17 22:27:04 +00:00
Chris Lattner
13cea4ef6f Fix compilation problem on freebsd. Problem noted by Vladimir Merzliakov in
PR371

llvm-svn: 14203
2004-06-17 21:20:52 +00:00
Brian Gaeke
cf3cb8944a Um, did someone make a typo or something?
llvm-svn: 14192
2004-06-15 23:09:50 +00:00
Chris Lattner
1adcf0441d Remove support for the isnan intrinsic
llvm-svn: 14186
2004-06-15 21:37:54 +00:00
Brian Gaeke
a4353cabab 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
Alkis Evlogimenos
dd550dc9cd Add constant folding capabilities to the isunordered intrinsic.
llvm-svn: 14168
2004-06-13 01:23:56 +00:00
Chris Lattner
66790212ba Constant fold the isnan intrinsic
llvm-svn: 14150
2004-06-11 06:16:23 +00:00
Chris Lattner
c65ff058f3 Implement constant folding of fmod, which is used a lot in povray
llvm-svn: 13823
2004-05-27 07:25:00 +00:00
Chris Lattner
e91dc2545c Restructure call constant folding code a bit to make it simpler
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
Alkis Evlogimenos
904f4f9a21 Include cerrno (gcc-3.4 fix)
llvm-svn: 13091
2004-04-21 16:11:40 +00:00