Chris Lattner
4d5f508318
Eliminate calls to isInteger, generalizing code and tightening checks as needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33218 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-15 01:55:30 +00:00
Chris Lattner
caed0e3d71
Fix Analysis/Dominators/2006-10-02-BreakCritEdges.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33210 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-15 00:15:09 +00:00
Chris Lattner
58e9746ef3
instcombine has always been miscompiling fcmp x, x, disregarding possible
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NANs. This fixes PR1111 and Transforms/InstCombine/2007-01-14-FcmpSelf.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33208 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-14 19:42:17 +00:00
Chris Lattner
9fa58b5f66
Fix PR1110 and Analysis/Dominators/2007-01-14-BreakCritEdges.ll by being
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more careful about unreachable code when updating dominator info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33204 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-14 18:33:35 +00:00
Chris Lattner
a5c5e7715c
Fix Transforms/InstCombine/2007-01-13-ExtCompareMiscompile.ll, which is part
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of PR1107
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33185 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-13 23:11:38 +00:00
Reid Spencer
ac3e76ca8f
Fix indentation to prior level for easier diffs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33184 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-13 05:10:53 +00:00
Nick Lewycky
0be7f47735
"Default context" blocks can occur after a non-default one. This meant
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that properties were being applied where they didn't belong. Fixes crash
in new MiBench testcase.
Also mark debugging code as such in #ifdef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33177 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-13 02:05:28 +00:00
Chris Lattner
54a525d7ae
Fix a minor bug handling constant exprs, introduced by a recent patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33175 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-13 00:42:58 +00:00
Chris Lattner
c08b56f6a0
fix a bug in a recent patch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33164 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-13 00:02:49 +00:00
Chris Lattner
ef60b2c4ed
simplify some code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33150 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 22:51:20 +00:00
Chris Lattner
720922fe27
Remove over-general comparisons
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33147 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 22:49:11 +00:00
Chris Lattner
e9d4fa7a92
eliminate redundant check
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33132 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 18:35:11 +00:00
Chris Lattner
97d1fad3d2
Branch conditions must be i1
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33129 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 18:30:11 +00:00
Reid Spencer
a54b7cbd45
For PR1064:
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Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.
This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
bits in an integer. The Type classes SubclassData field is used to
store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
64-bit integers. These are replaced with just IntegerType which is not
a primitive any more.
3. Adjust the rest of LLVM to account for this change.
Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types. Future increments
will rectify this situation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33113 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 07:05:14 +00:00
Reid Spencer
579dca12c2
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33110 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 04:24:46 +00:00
Nick Lewycky
28c5b1544a
If we know that it's a constant being casted, propagate through the cast
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instruction. Doesn't work the other way though (can't recover bits that
have been truncated).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33104 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 01:23:53 +00:00
Nick Lewycky
c2a7d097f9
Clean up logic after ConstantBool removal.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33096 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 00:02:12 +00:00
Reid Spencer
4fe16d607d
Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33076 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11 18:21:29 +00:00
Zhou Sheng
34dceb4757
Remove unnecessary boolean type check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33075 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11 14:38:17 +00:00
Zhou Sheng
6b6b6ef167
For PR1043:
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Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33073 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11 12:24:14 +00:00
Zhou Sheng
057809ac1c
Fixed indentation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33072 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11 10:33:26 +00:00
Nick Lewycky
bc00fec835
Quiet compiler warning. The only reason the function is marked virtual
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is so that it can be called from inside a debugger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33067 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11 02:38:21 +00:00
Nick Lewycky
419c6f5ac8
New predicate simplifier!
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Please do not enable, there is still some known miscompile problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33066 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-11 02:32:38 +00:00
Chris Lattner
39ff1e2afc
Fix a bug in heap-sra that caused compilation failure of office-ispell.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33043 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-09 23:29:37 +00:00
Jeff Cohen
dfc12993b9
Unbreak VC++ build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33021 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-08 20:17:17 +00:00
Reid Spencer
abaa8ca433
Comparison of primitive type sizes should now be done in bits, not bytes.
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This patch converts getPrimitiveSize to getPrimitiveSizeInBits where it is
appropriate to do so (comparison of integer primitive types).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33012 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-08 16:32:00 +00:00
Reid Spencer
ac8cdf79e7
For PR1097:
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Enable complex addressing modes on 64-bit platforms involving two induction
variables by keeping a size and scale in 64-bits not 32.
Patch by Dan Gohman.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33011 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-08 16:17:51 +00:00
Reid Spencer
3c628627ea
Types should be const.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33001 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-07 21:45:41 +00:00
Chris Lattner
ba8b327f67
this pass is unused
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32998 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-07 18:12:43 +00:00
Chris Lattner
b76efb71d4
Change the interface to Module::getOrInsertFunction to be easier to use,to resolve PR1088, and to help PR411.
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This simplifies many clients also
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32989 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-07 08:12:01 +00:00
Chris Lattner
a121fddf3c
prepare for adjustment to getOrInsertFunction method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32985 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-07 07:54:34 +00:00
Chris Lattner
febe5f1b3c
relax some types
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32982 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-07 07:22:20 +00:00
Chris Lattner
35057c2625
relax types
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32981 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-07 06:59:47 +00:00
Chris Lattner
92141968cb
relax some types
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32980 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-07 06:58:05 +00:00
Chris Lattner
ee4f13a904
add -debug output for -indvars.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32971 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-07 01:14:12 +00:00
Chris Lattner
46013f4044
Fix regressions in InstCombine/call-cast-target.ll and InstCombine/2003-11-13-ConstExprCastCall.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32959 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-06 19:53:32 +00:00
Reid Spencer
78d033e086
For PR411:
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Take an incremental step towards type plane elimination. This change
separates types from values in the symbol tables by finally making use
of the TypeSymbolTable class. This yields more natural interfaces for
dealing with types and unclutters the SymbolTable class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32956 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-06 07:24:44 +00:00
Chris Lattner
80c6c3bbff
this final call to canLosslesslyBitCastTo is dead, because ValueRequiresCast
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is only called on integers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32949 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-06 02:11:56 +00:00
Chris Lattner
ec47992f5c
simplify some more code now that there are not multiple different integer
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types of the same size
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32948 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-06 02:09:32 +00:00
Chris Lattner
57d8637468
eliminate some uses of canLosslesslyBitCastTo, this actually makes the code stronger, by nuking
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relational pointer comparisons with casts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32947 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-06 01:45:59 +00:00
Chris Lattner
d5dc0fb011
no need to worry about int vs uint any more.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32946 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-06 01:37:35 +00:00
Chris Lattner
e4929dd0cc
Implement InstCombine/vec_shuffle.ll:%test7, simplifying shuffles with
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undef operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32899 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-05 07:36:08 +00:00
Chris Lattner
4f0e33d145
fold things like a^b != c^a -> b != c. This implements InstCombine/xor.ll:test27
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32893 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-05 03:04:57 +00:00
Chris Lattner
e617c9ed5d
Compile X + ~X to -1. This implements Instcombine/add.ll:test34
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32890 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-05 02:17:46 +00:00
Reid Spencer
8c5a53a603
Death to useless bitcast instructions!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32866 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-04 05:23:51 +00:00
Chris Lattner
7ce2f8b265
Enable a couple xforms for packed vectors (undef | v) -> -1 for packed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32858 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-04 02:12:40 +00:00
Jim Laskey
52ab904ee5
Vectors are not supported by ConstantInt::getAllOnesValue.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32827 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-03 00:11:03 +00:00
Reid Spencer
ee5d25e5cc
Fix a typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32803 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-31 22:26:06 +00:00
Reid Spencer
c5b206b6be
For PR950:
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This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int -> Int32
4. [U]Long -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
and other methods related to signedness. In a few places this warranted
identifying the signedness information from other sources.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32785 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-31 05:48:39 +00:00
Reid Spencer
0f9d82c5c4
For PR1066:
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Fix this by ensuring that a bitcast is inserted to do sign switching. This
is only temporarily needed as the merging of signed and unsigned is next
on the SignlessTypes plate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32757 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-24 00:40:59 +00:00
Reid Spencer
b3307b232a
Shut up some compilers that can't accurately analyze variable usage
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correctly and emit "may be used uninitialized" warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32756 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-23 19:17:57 +00:00
Reid Spencer
1b0d847874
For PR1065:
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Don't allow CmpInst instances to be processed in FoldSelectOpOp because
you can't easily swap their operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32753 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-23 18:58:04 +00:00
Reid Spencer
e4d87aa2de
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-23 06:05:41 +00:00
Chris Lattner
add2bd7f59
add a simple fast-path for dead allocas
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32750 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-22 23:14:42 +00:00
Reid Spencer
06e3f4ee7e
Remove isSigned calls via foreknowledge of main's argument types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32730 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-21 07:49:49 +00:00
Reid Spencer
a2913eea9d
Get rid of a useless if statement whose then and else blocks were identical.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32729 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-21 07:15:54 +00:00
Chris Lattner
3bad2533bb
handle undef values much more carefully: generalize the resolveundefbranches
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code to handle instructions as well, so that we properly fold things like
X & undef -> 0.
This fixes Transforms/SCCP/2006-12-19-UndefBug.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32715 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-20 06:21:33 +00:00
Chris Lattner
1c560adfd1
switch statistics over to not use static ctors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32709 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 23:16:47 +00:00
Chris Lattner
cbfdd1f840
eliminate static ctor from example.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32696 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 22:24:09 +00:00
Chris Lattner
61bc8f8ca4
remove dead statistic
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32695 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 22:23:21 +00:00
Chris Lattner
d216e8ba60
switch more statistics over to STATISTIC, eliminating static ctors. Also,
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delete some dead ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32694 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 22:17:40 +00:00
Chris Lattner
86453c52ba
Eliminate static ctors due to Statistic objects
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32693 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 22:09:18 +00:00
Chris Lattner
438e08e357
Convert more Statistic's over to STATISTIC
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32692 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 21:49:03 +00:00
Chris Lattner
0e5f499638
Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic
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converted, we lose a static initializer. This also allows GCC to emit warnings
about unused statistics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32690 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 21:40:18 +00:00
Reid Spencer
8a903db499
Convert the last uses of CastInst::createInferredCast to a normal cast
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creation. These changes are still temporary but at least this pushes
knowledge of signedness out closer to where it can be determined properly
and allows signedness to be removed from VMCore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32654 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-18 08:47:13 +00:00
Reid Spencer
dc26a9b840
Convert the last use of two-argument ConstantExpr::getCast into another
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form so we can remove that method from ConstantExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32652 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-18 08:16:27 +00:00
Bill Wendling
5c7e326585
Added an automatic cast to "std::ostream*" etc. from OStream. We then can
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rework the hacks that had us passing OStream in. We pass in std::ostream*
instead, check for null, and then dispatch to the correct print() method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32636 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-17 05:15:13 +00:00
Chris Lattner
95ca3a453a
when inserting a dummy argument to work-around the CBE not supporting
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zero arg vararg functions, pass undef instead of 'int 0', which is cheaper.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32634 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-16 21:21:53 +00:00
Chris Lattner
d22dbdf606
re-enable a temporarily-reverted patch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32595 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-15 07:32:38 +00:00
Reid Spencer
c55b243bcd
Fix a bug in EvaluateInDifferentType. The type of operand should not be
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used to determine whether a ZExt or SExt cast is performed. Instead, pass
an "isSigned" bool to the function and determine its value from the opcode
of the cast involved.
Also, clean up some cruft from previous patches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32548 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 18:21:21 +00:00
Reid Spencer
7eb7638276
Implement review feedback. Most of this has to do with removing unnecessary
...
cast instructions. A few are bug fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32544 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 17:19:09 +00:00
Reid Spencer
21a55c9f08
For mul transforms, when checking for a cast from bool as either operand,
...
make sure to also check that it is a zext from bool, not any other cast
operation type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32539 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 08:33:33 +00:00
Reid Spencer
5ae9cebef5
Fix and/or/xor (cast A), (cast B) --> cast (and/or/xor A, B)
...
The cast patch introduced the possibility that the wrong cast opcode
could be used and that this transform could trigger on different kinds
of cast operations. This patch rectifies that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32538 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 08:27:15 +00:00
Reid Spencer
3ba68b9eef
Change the interface to SCEVExpander::InsertCastOfTo to take a cast opcode
...
so the decision of which opcode to use is pushed upward to the caller.
Adjust the callers to pass the expected opcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32535 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 08:06:42 +00:00
Reid Spencer
dccd9fe161
Fix some casts. isdigit(c) returns 0 or 1, not 0 or -1
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32534 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 08:04:32 +00:00
Chris Lattner
21c362d324
revert my recent int<->fp and vector union promotion changes, they expose
...
obscure bugs affecting the X86 code generator. I will reenable this
when fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32524 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 02:26:45 +00:00
Reid Spencer
7b06bd532d
Replace CastInst::createInferredCast calls with more accurate cast
...
creation calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32521 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 00:50:17 +00:00
Reid Spencer
d977d8651a
Replace inferred getCast(V,Ty) calls with more strict variants.
...
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match
the the casting mnemonics in the rest of LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32514 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 23:36:14 +00:00
Chris Lattner
bb4e7b2fa4
this can be trunc or bitcast, per line 3092.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32487 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 19:11:20 +00:00
Chris Lattner
078b631ff3
Fix regression on 400.perlbench last night.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32486 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 18:41:03 +00:00
Reid Spencer
17212df0ee
Fix numerous inferred casts.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32479 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 09:18:51 +00:00
Reid Spencer
daa8e3c263
Fix the casting for the computation of the Malloc size.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32477 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 09:17:08 +00:00
Reid Spencer
4da49122f3
Change inferred getCast into specific getCast. Passes all tests.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32469 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 05:05:00 +00:00
Chris Lattner
a30fc5ed04
Patch for PR1045 and Transforms/ScalarRepl/2006-12-11-SROA-Crash.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32468 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 04:24:41 +00:00
Chris Lattner
509f85140c
trunc to integer, not to FP.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32426 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11 01:17:00 +00:00
Chris Lattner
1dbea1598c
implement promotion of unions containing two packed types of the same width.
...
This implements Transforms/ScalarRepl/union-packed.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32422 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11 00:35:08 +00:00
Chris Lattner
ae6a305094
* Eliminate calls to CastInst::createInferredCast.
...
* Add support for promoting unions with fp values in them. This produces
our new int<->fp bitcast instructions, implementing
Transforms/ScalarRepl/union-fp-int.ll
As an example, this allows us to compile this:
union intfloat { int i; float f; };
float invsqrt(const float arg_x) {
union intfloat x = { .f = arg_x };
const float xhalf = arg_x * 0.5f;
x.i = 0x5f3759df - (x.i >> 1);
return x.f * (1.5f - xhalf * x.f * x.f);
}
into:
_invsqrt:
movss 4(%esp), %xmm0
movd %xmm0, %eax
sarl %eax
movl $1597463007, %ecx
subl %eax, %ecx
movd %ecx, %xmm1
mulss LCPI1_0, %xmm0
mulss %xmm1, %xmm0
movss LCPI1_1, %xmm2
mulss %xmm1, %xmm0
subss %xmm0, %xmm2
movl 8(%esp), %eax
mulss %xmm2, %xmm1
movss %xmm1, (%eax)
ret
instead of:
_invsqrt:
subl $4, %esp
movss 8(%esp), %xmm0
movss %xmm0, (%esp)
movl (%esp), %eax
movl $1597463007, %ecx
sarl %eax
subl %eax, %ecx
movl %ecx, (%esp)
mulss LCPI1_0, %xmm0
movss (%esp), %xmm1
mulss %xmm1, %xmm0
mulss %xmm1, %xmm0
movss LCPI1_1, %xmm2
subss %xmm0, %xmm2
mulss %xmm2, %xmm1
movl 12(%esp), %eax
movss %xmm1, (%eax)
addl $4, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32418 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-10 23:56:50 +00:00
Reid Spencer
f7761e5c39
Incorporate any changes in the successor blocks into the result of
...
MarkAliveBlocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32375 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-08 21:52:01 +00:00
Bill Wendling
f5da13367f
What should be the last unnecessary <iostream>s in the library.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32333 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-07 22:21:48 +00:00
Bill Wendling
832171cb97
Removing even more <iostream> includes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32320 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-07 20:04:42 +00:00
Bill Wendling
e81561909d
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
...
now cerr, cout, and NullStream resp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-07 01:30:32 +00:00
Reid Spencer
62700f250f
Update ConstantIntegral Max/Min tests for new interface.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32288 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 20:39:57 +00:00
Chris Lattner
02fc40ebd3
add missing #include
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32280 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 18:14:47 +00:00
Chris Lattner
ac0b6ae358
Detemplatize the Statistic class. The only type it is instantiated with
...
is 'unsigned'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32279 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 17:46:33 +00:00
Chris Lattner
3749c9cae4
Remove the 'printname' argument to WriteAsOperand. It is always true, and
...
passing false would make the asmprinter fail anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32264 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 06:16:21 +00:00
Chris Lattner
698b51e870
counter should be unsigned.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32252 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 01:50:04 +00:00
Chris Lattner
e13ab2a9a1
add an instcombine xform. This speeds up 462.libquantum from 9.78s to
...
7.48s. This regression is due to unforseen consequences of the cast patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32209 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-05 01:26:29 +00:00
Devang Patel
67a821d9a3
SCCP does not handle Packed Type properly. Disable Packed Type handling
...
for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32208 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-04 23:54:59 +00:00
Reid Spencer
3b3844288b
Update call to CastInst::getCastOpcode for its new signature.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32166 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-04 02:48:01 +00:00
Jeff Cohen
97af751deb
Unbreak VC++ build.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32113 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 02:22:01 +00:00
Chris Lattner
9919e3df17
disable transformations that are invalid for fp vectors. This fixes
...
Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32112 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 00:13:08 +00:00
Reid Spencer
44c030a7ee
Remove 4 FIXMEs to hack around cast-to-bool problems which no longer exist.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32051 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30 23:13:36 +00:00
Chris Lattner
d0a6a7a030
make it clear that this is always a zext
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32044 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30 17:35:08 +00:00
Chris Lattner
6e8fbad675
One more bugfix, 3 cases of making casts explicit.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32043 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30 17:32:29 +00:00
Chris Lattner
9a989f0f97
Fix a bug in globalopt due to the recent cast patch.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32042 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30 17:26:08 +00:00
Chris Lattner
46b96055cf
implement cast.ll:test35. With this, we recognize:
...
unsigned short swp(unsigned short a) {
return ((a & 0xff00) >> 8 | (a & 0x00ff) << 8);
}
as an idiom for bswap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32011 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29 07:18:39 +00:00
Chris Lattner
6aa5eb19d5
Teach instcombine to turn trunc(srl x, c) -> srl (trunc(x), c) when safe.
...
This implements InstCombine/cast.ll:test34. It fires hundreds of times on
176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32009 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29 07:04:07 +00:00
Chris Lattner
458cf462ef
Implement Regression/Transforms/InstCombine/bswap-fold.ll,
...
folding seteq (bswap(x)), c -> seteq(x,bswap(c))
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32006 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29 05:02:16 +00:00
Reid Spencer
de33124aa3
Join a split line.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31996 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29 01:11:01 +00:00
Reid Spencer
d4d9ab80b7
Undo the last patch until 253.perlbmk passes with these changes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31977 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-28 20:23:51 +00:00
Reid Spencer
5d4dbd1f60
Remove 4 FIXME's from the CAST patch now that the back end is correctly
...
producing code for "trunc to bool". This passes all tests on Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31963 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-28 07:23:01 +00:00
Chris Lattner
f2f1643037
Fix PR1014 and InstCombine/2006-11-27-XorBug.ll.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31941 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-27 19:55:07 +00:00
Reid Spencer
3da59db637
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-27 01:05:10 +00:00
Bill Wendling
0d45a096cf
Remove #include <iostream> and use llvm_* streams instead.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31925 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-26 10:17:54 +00:00
Bill Wendling
0a81aac4b4
Replace #include <iostream> with llvm_* streams.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31924 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-26 10:02:32 +00:00
Bill Wendling
b742703137
Removed #include <iostream> and replaced with llvm_* streams.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31923 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-26 09:46:52 +00:00
Bill Wendling
62c804a3ea
Removed #include <iostream> and used the llvm_cerr/DOUT streams instead.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31922 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-26 09:17:06 +00:00
Nick Lewycky
565706b93e
Update to new predicate simplifier VRP design. Fixes PR966 and PR967.
...
Remove predicate simplifier from default gcc3 pipeline. New design is too
slow to enable by default.
Add new testcases for problems encountered in development.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31895 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-22 23:49:16 +00:00
Chris Lattner
13c654a42a
This xform is handled by FoldOpIntoPhi in visitCastInst in a more elegant way.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31889 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-21 17:05:13 +00:00
Chris Lattner
822a879983
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31853 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-18 19:19:36 +00:00
Chris Lattner
020f714a93
If an indvar with a variable stride is used by the exit condition, go ahead
...
and handle it like constant stride vars. This fixes some bad codegen in
variable stride cases. For example, it compiles this:
void foo(int k, int i) {
for (k=i+i; k <= 8192; k+=i)
flags2[k] = 0;
}
to:
LBB1_1: #bb.preheader
movl %eax, %ecx
addl %ecx, %ecx
movl L_flags2$non_lazy_ptr, %edx
LBB1_2: #bb
movb $0, (%edx,%ecx)
addl %eax, %ecx
cmpl $8192, %ecx
jle LBB1_2 #bb
LBB1_5: #return
ret
or (if the array is local and we are in dynamic-nonpic or static mode):
LBB3_2: #bb
movb $0, _flags2(%ecx)
addl %eax, %ecx
cmpl $8192, %ecx
jle LBB3_2 #bb
and:
lis r2, ha16(L_flags2$non_lazy_ptr)
lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
slwi r3, r4, 1
LBB1_2: ;bb
li r5, 0
add r6, r4, r3
stbx r5, r2, r3
cmpwi cr0, r6, 8192
bgt cr0, LBB1_5 ;return
instead of:
leal (%eax,%eax,2), %ecx
movl %eax, %edx
addl %edx, %edx
addl L_flags2$non_lazy_ptr, %edx
xorl %esi, %esi
LBB1_2: #bb
movb $0, (%edx,%esi)
movl %eax, %edi
addl %esi, %edi
addl %ecx, %esi
cmpl $8192, %esi
jg LBB1_5 #return
and:
lis r2, ha16(L_flags2$non_lazy_ptr)
lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
mulli r3, r4, 3
slwi r5, r4, 1
li r6, 0
add r2, r2, r5
LBB1_2: ;bb
li r5, 0
add r7, r3, r6
stbx r5, r2, r6
add r6, r4, r6
cmpwi cr0, r7, 8192
ble cr0, LBB1_2 ;bb
This speeds up Benchmarks/Shootout/sieve from 8.533s to 6.464s and
implements LoopStrengthReduce/var_stride_used_by_compare.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31809 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-17 06:17:33 +00:00
Chris Lattner
d23b5baf8a
Fix a gcc 4.2 warning.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-15 04:53:24 +00:00
Chris Lattner
e511b74f4a
implement InstCombine/shift-simplify.ll by transforming:
...
(X >> Z) op (Y >> Z) -> (X op Y) >> Z
for all shifts and all ops={and/or/xor}.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31729 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 07:46:50 +00:00
Chris Lattner
9c2328e5a9
implement InstCombine/and-compare.ll:test1. This compiles:
...
typedef struct { unsigned prefix : 4; unsigned code : 4; unsigned unsigned_p : 4; } tree_common;
int foo(tree_common *a, tree_common *b) { return a->code == b->code; }
into:
_foo:
movl 4(%esp), %eax
movl 8(%esp), %ecx
movl (%eax), %eax
xorl (%ecx), %eax
# TRUNCATE movb %al, %al
shrb $4, %al
testb %al, %al
sete %al
movzbl %al, %eax
ret
instead of:
_foo:
movl 8(%esp), %eax
movb (%eax), %al
shrb $4, %al
movl 4(%esp), %ecx
movb (%ecx), %cl
shrb $4, %cl
cmpb %al, %cl
sete %al
movzbl %al, %eax
ret
saving one cycle by eliminating a shift.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31727 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 06:06:06 +00:00
Chris Lattner
de2b6605ba
Fix InstCombine/2006-11-10-ashr-miscompile.ll a miscompilation introduced
...
by the shr -> [al]shr patch. This was reduced from 176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31653 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-10 23:38:52 +00:00
Chris Lattner
08ff1480ff
second patch to fix PR992/993.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31610 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-09 23:36:08 +00:00
Chris Lattner
a9d709d51a
Minimal patch to fix PR992/PR993
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31608 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-09 23:17:45 +00:00
Chris Lattner
b4a2f059ad
Teach ShrinkDemandedConstant how to handle X+C. This implements:
...
add.ll:test33, add.ll:test34, shift-sra.ll:test2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31586 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-09 05:12:27 +00:00
Chris Lattner
53738a4dbf
reenable factoring of GEP expressions, being more precise about the
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case that it bad to do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31563 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08 19:42:28 +00:00
Chris Lattner
f6fd94d3fa
make this code more efficient by not creating a phi node we are just going to
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delete in the first place. This also makes it simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31562 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08 19:29:23 +00:00
Jim Laskey
d6c3422e31
Remove redundant <cmath>.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31561 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08 19:16:44 +00:00
Chris Lattner
f0cd7085c1
disable this factoring optzn for GEPs for now, this severely pessimizes some
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loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31560 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08 18:49:31 +00:00
Reid Spencer
3822ff5c71
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31542 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-08 06:47:33 +00:00
Chris Lattner
d92515034f
scalarrepl should not split the two elements of the vsiidx array:
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int func(vFloat v0, vFloat v1) {
int ii;
vSInt32 vsiidx[2];
vsiidx[0] = _mm_cvttps_epi32(v0);
vsiidx[1] = _mm_cvttps_epi32(v1);
ii = ((int *) vsiidx)[4];
return ii;
}
This fixes Transforms/ScalarRepl/2006-11-07-InvalidArrayPromote.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31524 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-07 22:42:47 +00:00
Jeff Cohen
d41b30def3
Unbreak VC++ build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31464 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-05 19:31:28 +00:00
Nick Lewycky
8b2989ae91
Remove commented line from earlier debugging.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31460 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-05 14:19:40 +00:00
Andrew Lenharth
8ed4c47d70
The wrong parameter was being tested to deturmine i32 vs i64
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31431 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-03 22:45:50 +00:00
Chris Lattner
ffa0a9b7ea
remove dead code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31398 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-03 01:34:58 +00:00
Reid Spencer
3ed469ccd7
For PR786:
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31380 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-02 20:25:50 +00:00
Reid Spencer
0a783f783c
For PR950:
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Replace the REM instruction with UREM, SREM and FREM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31369 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-02 01:53:59 +00:00
Devang Patel
e0805a2d36
There can be more than one PHINode at the start of the block.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31362 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 23:04:45 +00:00
Devang Patel
2c0565f8e0
Handle PHINode with only one incoming value.
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This fixes http://llvm.org/bugs/show_bug.cgi?id=979
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31358 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 22:26:43 +00:00
Chris Lattner
25de4e5c21
Fix GlobalOpt/2006-11-01-ShrinkGlobalPhiCrash.ll and McGill/chomp
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31352 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 18:03:33 +00:00
Chris Lattner
9c08050ac7
Factor gep instructions through phi nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31346 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 07:43:41 +00:00
Chris Lattner
76c7314650
Turn a phi of many loads into a phi of the address and a single load of the
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result. This can significantly shrink code and exposes identities more
aggressively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31344 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 07:13:54 +00:00
Chris Lattner
a90a24c623
Fix a bug in the previous patch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31342 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 04:55:47 +00:00
Chris Lattner
7da52b295b
Fold things like "phi [add (a,b), add(c,d)]" into two phi's and one add.
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This triggers thousands of times on multisource.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31341 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 04:51:18 +00:00
Chris Lattner
cbea67f55b
generalize the fix for PR977 to also fix
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Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31317 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 18:56:48 +00:00
Chris Lattner
1753faee81
Fix PR977 and Transforms/LCSSA/2006-10-31-UnreachableBlock.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31315 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 17:52:18 +00:00
Chris Lattner
120bc21576
Fix SimplifyCFG/2006-10-29-InvokeCrash.ll, a crash compiling QT.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31284 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 21:21:20 +00:00