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196 Commits

Author SHA1 Message Date
Dan Gohman
c01895c7db Reapply r121886, and also update DecomposeGEPExpression to keep 
it in sync.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121895 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:49:55 +00:00
Dan Gohman
3928d13808 Revert r121886. DecomposeGEPExpression needs to be kept 
in sync.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121892 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:39:25 +00:00
Dan Gohman
243712720a Strengthen GetUnderlyingObject using InstructionSimplify. 
While LLVM's main design is that analysis code shouldn't
go out of its way to understand code which hasn't been
InstCombined, analysis utility routines like this can
find themselves being called in the middle of transform
passes when instcombine hasn't had a chance to run.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121886 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:10:26 +00:00
Dan Gohman
5034dd318a Move Value::getUnderlyingObject to be a standalone 
function so that it can live in Analysis instead of
VMCore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121885 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:02:24 +00:00
Jay Foad
40f8f6264d PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and 
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 08:25:19 +00:00
Jay Foad
7a874ddda0 PR5207: Rename overloaded APInt methods set(), clear(), flip() to 
setAllBits(), setBit(unsigned), etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120564 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-01 08:53:58 +00:00
Chris Lattner
ed58a6f96f move GetPointerBaseWithConstantOffset out of GVN into ValueTracking.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120476 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 22:25:26 +00:00
Jay Foad
a99793c5ea PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120413 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 09:02:01 +00:00
Chris Lattner
e971131695 fix PR8063, a crash in globalopt in the malloc analysis code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-05 17:20:46 +00:00
Chris Lattner
30963fbe8f move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

Now with less tree breakingness.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111433 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 22:07:29 +00:00
Daniel Dunbar
4ae56d725d Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The 
form of", it doesn't pass tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111385 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:43:08 +00:00
Chris Lattner
6b63037306 move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111375 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:22:17 +00:00
Chris Lattner
91b2307a89 fix PR7589: In brief: 
gep P, (zext x) != gep P, (sext x)

DecomposeGEPExpression was getting this wrong, confusing
basicaa.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111352 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 04:28:19 +00:00
Gabor Greif
71339c965c use ArgOperand accessors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106697 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-23 23:38:07 +00:00
Eric Christopher
551754c495 Revert 101465, it broke internal OpenGL testing. 
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-16 23:37:20 +00:00
Gabor Greif
4ec2258ffb reapply r101434 
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101465 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-16 15:33:14 +00:00
Gabor Greif
607a7ab3da back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101434 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-16 01:16:20 +00:00
Gabor Greif
2ff961f668 reapply r101364, which has been backed out in r101368 
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 20:51:13 +00:00
Gabor Greif
9ee1720811 back out r101364, as it trips the linux nightlybot on some clang C++ tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101368 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 12:46:56 +00:00
Gabor Greif
165dac08d1 rotate CallInst operands, i.e. move callee to the back 
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101364 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 10:49:53 +00:00
Dan Gohman
0a60fa3321 Constify GetConstantStringInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 22:20:45 +00:00
Evan Cheng
0af20d847a Fix a typo in ValueTracking that's causing instcombine to delete needed shift instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98416 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-13 02:20:29 +00:00
Eric Christopher
25ec483cfc Move GetStringLength and helper from SimplifyLibCalls to ValueTracking. 
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97793 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 06:58:57 +00:00
Duncan Sands
1df9859c40 There are two ways of checking for a given type, for example isa<PointerType>(T) 
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96344 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-16 11:11:14 +00:00
Duncan Sands
b0bc6c361d Uniformize the names of type predicates: rather than having isFloatTy and 
isInteger, we now have isFloatTy and isIntegerTy.  Requested by Chris!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96223 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-15 16:12:20 +00:00
Duncan Sands
cfd54181a4 It looks like the changes to the SRem logic of SimplifyDemandedUseBits 
(fix for PR6165) are needed here too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94801 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 06:18:37 +00:00
Chris Lattner
8d10f9d4a8 teach ComputeNumSignBits to look through PHI nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 23:44:37 +00:00
Benjamin Kramer
8c65f6e71c Move remaining stuff to the isInteger predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 21:05:54 +00:00
Chris Lattner
524528e614 Fix GetConstantStringInfo to not look into MDString (it works on 
real data, not metadata) and fix DbgInfoPrinter to not abuse
GetConstantStringInfo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91444 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 19:34:20 +00:00
Mon P Wang
69a008075b Fixed an assertion failure for tracking sext of a vector of integers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90290 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 04:59:58 +00:00
Chris Lattner
ab9530ee5d implement a FIXME: limit the depth that DecomposeGEPExpression goes the same 
way that getUnderlyingObject does it. 

This fixes the 'DecomposeGEPExpression and getUnderlyingObject disagree!' 
assertion on sqlite3.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90038 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-28 15:12:41 +00:00
Chris Lattner
a650f770d4 limit the recursion depth of GetLinearExpression. This 
fixes a crash analyzing consumer-lame, which had an "%X = add %X, 1"
in unreachable code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90000 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 08:32:52 +00:00
Chris Lattner
1ce0eaa25f Implement PR1143 (at -m64) by making basicaa look through extensions. We 
previously already handled it at -m32 because there were no i32->i64 
extensions for addressing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89959 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 18:53:33 +00:00
Chris Lattner
b18004c13c fix two transposed lines duncan caught and add an explanatory comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89958 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 18:35:46 +00:00
Chris Lattner
8fe8ac725b this todo is resolved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89957 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 17:14:10 +00:00
Chris Lattner
e405c64f6b move DecomposeGEPExpression out into ValueTracking.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 17:12:50 +00:00
Chris Lattner
11fe72661d remove some redundant braces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89912 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 01:50:12 +00:00
Nick Lewycky
ae3d802953 Remove unused LLVMContext. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89642 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-23 03:29:18 +00:00
Dan Gohman
3dbb9e64d6 Simplify ComputeMultiple so that it doesn't depend on TargetData. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89175 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 00:58:27 +00:00
Victor Hernandez
2b6705f5e7 Add ComputeMultiple() analysis function that recursively determines if a Value V is a multiple of unsigned Base 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86675 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-10 08:28:35 +00:00
Victor Hernandez
7b929dad59 Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84969 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-23 21:09:37 +00:00
Victor Hernandez
a276c603b8 Remove MallocInst from LLVM Instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84299 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-17 01:18:07 +00:00
Dale Johannesen
9d06175a15 Handle sqrt in CannotBeNegativeZero. absf and absl 
appear to be misspellings, removed in favor of fabs*.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82796 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-25 20:54:50 +00:00
Dan Gohman
307a7c48f1 Teach ValueTracking how to look through GlobalAliases. GlobalAliases are 
not folded in the constant folder because the constant folder doesn't
simplify ConstantExpr operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81864 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-15 16:14:44 +00:00
Chris Lattner
b9a4ddbbcd fix ComputeMaskedBits handling of zext/sext/trunc to work with vectors. 
This fixes PR4905


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81174 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-08 00:13:52 +00:00
Chris Lattner
cf5128ec01 add some comments to describe the invariants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81173 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-08 00:06:16 +00:00
Torok Edwin
148843b0ce Fix DbgStopPointInst->getFileName/getDirectory, broken by the MDNodification in 
r80406, and readd a -print-dbginfo test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80778 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-02 11:13:56 +00:00
Dan Gohman
846a2f2703 Handle TargetData with const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80262 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-27 17:51:25 +00:00
Dan Gohman
8255573835 Use hasDefinitiveInitializer() instead of testing the same thing 
by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79441 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 18:20:44 +00:00
Dan Gohman
107f41fad5 Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden 
before performing optimizations based on constant string values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79384 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 00:11:12 +00:00