Commit Graph

2850 Commits

Author SHA1 Message Date
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
Chris Lattner
f739d01059 Fix Analysis/Dominators/2006-10-02-BreakCritEdges.ll
llvm-svn: 33210
2007-01-15 00:15:09 +00:00
Chris Lattner
6ee923f3bb instcombine has always been miscompiling fcmp x, x, disregarding possible
NANs.  This fixes PR1111 and Transforms/InstCombine/2007-01-14-FcmpSelf.ll

llvm-svn: 33208
2007-01-14 19:42:17 +00:00
Chris Lattner
9818a6fd76 Fix PR1110 and Analysis/Dominators/2007-01-14-BreakCritEdges.ll by being
more careful about unreachable code when updating dominator info.

llvm-svn: 33204
2007-01-14 18:33:35 +00:00
Chris Lattner
387bf3f700 Fix Transforms/InstCombine/2007-01-13-ExtCompareMiscompile.ll, which is part
of PR1107

llvm-svn: 33185
2007-01-13 23:11:38 +00:00
Reid Spencer
47bb5c996e Fix indentation to prior level for easier diffs.
llvm-svn: 33184
2007-01-13 05:10:53 +00:00
Nick Lewycky
4294446fcb "Default context" blocks can occur after a non-default one. This meant
that properties were being applied where they didn't belong. Fixes crash
in new MiBench testcase.

Also mark debugging code as such in #ifdef.

llvm-svn: 33177
2007-01-13 02:05:28 +00:00
Chris Lattner
ff7434a526 Fix a minor bug handling constant exprs, introduced by a recent patch.
llvm-svn: 33175
2007-01-13 00:42:58 +00:00
Chris Lattner
ca82a908e3 fix a bug in a recent patch
llvm-svn: 33164
2007-01-13 00:02:49 +00:00
Chris Lattner
f5e5236b57 simplify some code
llvm-svn: 33150
2007-01-12 22:51:20 +00:00
Chris Lattner
3b6058c278 Remove over-general comparisons
llvm-svn: 33147
2007-01-12 22:49:11 +00:00
Chris Lattner
e3721e3002 eliminate redundant check
llvm-svn: 33132
2007-01-12 18:35:11 +00:00
Chris Lattner
15649084e9 Branch conditions must be i1
llvm-svn: 33129
2007-01-12 18:30:11 +00:00
Reid Spencer
7a9c62baa6 For PR1064:
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.

llvm-svn: 33113
2007-01-12 07:05:14 +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
Nick Lewycky
ee32ee0250 If we know that it's a constant being casted, propagate through the cast
instruction. Doesn't work the other way though (can't recover bits that
have been truncated).

llvm-svn: 33104
2007-01-12 01:23:53 +00:00
Nick Lewycky
4a74a75bbb Clean up logic after ConstantBool removal.
llvm-svn: 33096
2007-01-12 00:02:12 +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
bd23db9968 Remove unnecessary boolean type check.
llvm-svn: 33075
2007-01-11 14:38:17 +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
Zhou Sheng
691b263e07 Fixed indentation.
llvm-svn: 33072
2007-01-11 10:33:26 +00:00
Nick Lewycky
5d6ede524a Quiet compiler warning. The only reason the function is marked virtual
is so that it can be called from inside a debugger.

llvm-svn: 33067
2007-01-11 02:38:21 +00:00
Nick Lewycky
2fc338f923 New predicate simplifier!
Please do not enable, there is still some known miscompile problem.

llvm-svn: 33066
2007-01-11 02:32:38 +00:00
Chris Lattner
8571caa99b Fix a bug in heap-sra that caused compilation failure of office-ispell.
llvm-svn: 33043
2007-01-09 23:29:37 +00:00
Jeff Cohen
223004cd12 Unbreak VC++ build.
llvm-svn: 33021
2007-01-08 20:17:17 +00:00
Reid Spencer
8f166b0ef3 Comparison of primitive type sizes should now be done in bits, not bytes.
This patch converts getPrimitiveSize to getPrimitiveSizeInBits where it is
appropriate to do so (comparison of integer primitive types).

llvm-svn: 33012
2007-01-08 16:32:00 +00:00
Reid Spencer
bf96e02a54 For PR1097:
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.

llvm-svn: 33011
2007-01-08 16:17:51 +00:00
Reid Spencer
4f98e62831 Types should be const.
llvm-svn: 33001
2007-01-07 21:45:41 +00:00
Chris Lattner
950d0e9926 this pass is unused
llvm-svn: 32998
2007-01-07 18:12:43 +00:00
Chris Lattner
34acba48cc Change the interface to Module::getOrInsertFunction to be easier to use,to resolve PR1088, and to help PR411.
This simplifies many clients also

llvm-svn: 32989
2007-01-07 08:12:01 +00:00
Chris Lattner
d97f1936bb prepare for adjustment to getOrInsertFunction method
llvm-svn: 32985
2007-01-07 07:54:34 +00:00
Chris Lattner
cc4715e06e relax some types
llvm-svn: 32982
2007-01-07 07:22:20 +00:00
Chris Lattner
9641ab26ec relax types
llvm-svn: 32981
2007-01-07 06:59:47 +00:00
Chris Lattner
fbc524fe87 relax some types
llvm-svn: 32980
2007-01-07 06:58:05 +00:00
Chris Lattner
0816559b13 add -debug output for -indvars.
llvm-svn: 32971
2007-01-07 01:14:12 +00:00
Chris Lattner
7051d758de Fix regressions in InstCombine/call-cast-target.ll and InstCombine/2003-11-13-ConstExprCastCall.ll
llvm-svn: 32959
2007-01-06 19:53:32 +00:00
Reid Spencer
32af9e8cc5 For PR411:
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.

llvm-svn: 32956
2007-01-06 07:24:44 +00:00
Chris Lattner
c343a99786 this final call to canLosslesslyBitCastTo is dead, because ValueRequiresCast
is only called on integers.

llvm-svn: 32949
2007-01-06 02:11:56 +00:00
Chris Lattner
400f959a0c simplify some more code now that there are not multiple different integer
types of the same size

llvm-svn: 32948
2007-01-06 02:09:32 +00:00
Chris Lattner
64d87b0215 eliminate some uses of canLosslesslyBitCastTo, this actually makes the code stronger, by nuking
relational pointer comparisons with casts.

llvm-svn: 32947
2007-01-06 01:45:59 +00:00
Chris Lattner
3fe98ae10a no need to worry about int vs uint any more.
llvm-svn: 32946
2007-01-06 01:37:35 +00:00
Chris Lattner
d7b6ea166d Implement InstCombine/vec_shuffle.ll:%test7, simplifying shuffles with
undef operands.

llvm-svn: 32899
2007-01-05 07:36:08 +00:00
Chris Lattner
17c7c030c2 fold things like a^b != c^a -> b != c. This implements InstCombine/xor.ll:test27
llvm-svn: 32893
2007-01-05 03:04:57 +00:00
Chris Lattner
23eb8ec78b Compile X + ~X to -1. This implements Instcombine/add.ll:test34
llvm-svn: 32890
2007-01-05 02:17:46 +00:00
Reid Spencer
6ff3e73db6 Death to useless bitcast instructions!
llvm-svn: 32866
2007-01-04 05:23:51 +00:00
Chris Lattner
806adafd95 Enable a couple xforms for packed vectors (undef | v) -> -1 for packed.
llvm-svn: 32858
2007-01-04 02:12:40 +00:00
Jim Laskey
c4ba9c161b Vectors are not supported by ConstantInt::getAllOnesValue.
llvm-svn: 32827
2007-01-03 00:11:03 +00:00
Reid Spencer
e8a74ee5ea Fix a typo.
llvm-svn: 32803
2006-12-31 22:26:06 +00:00
Reid Spencer
c635f47d9a For PR950:
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.

llvm-svn: 32785
2006-12-31 05:48:39 +00:00
Reid Spencer
193df25eb9 For PR1066:
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.

llvm-svn: 32757
2006-12-24 00:40:59 +00:00