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Author SHA1 Message Date
Chris Lattner
6a844fa8b0 Add another testcase 
llvm-svn: 3355
 2002-08-15 19:38:03 +00:00
Chris Lattner
0d1bc11665 Write constexpr casts using the cast X to Y notation, not using the implicit 
type result

llvm-svn: 3354
 2002-08-15 19:37:43 +00:00
Chris Lattner
7cd8403f2b Parse const expr cast instruction the same way the instruction is formed 
llvm-svn: 3353
 2002-08-15 19:37:11 +00:00
Chris Lattner
0812b53cc4 Add a note mentioning that bools promote to 0 or 1 
llvm-svn: 3352
 2002-08-15 19:36:05 +00:00
Chris Lattner
8c5c0b9560 Move ConstExpr production to unify ConstVal stuff 
llvm-svn: 3351
 2002-08-15 18:17:28 +00:00
Chris Lattner
971fa225af Fix bug: test/Regression/Assembler/2002-08-15-UnresolvedGlobalReference.ll 
llvm-svn: 3350
 2002-08-15 17:58:33 +00:00
Chris Lattner
ea7257ec94 There seem to be issues with constant exprs 
llvm-svn: 3349
 2002-08-15 17:04:40 +00:00
Chris Lattner
4a542aeb38 Simplify the code 
llvm-svn: 3348
 2002-08-15 16:15:36 +00:00
Chris Lattner
caaca8d4c9 Handle more cases of cast-of-cast in more general forms. 
llvm-svn: 3347
 2002-08-15 16:15:25 +00:00
Chris Lattner
aac33658b1 Remove the last traces of the NOT instruction 
llvm-svn: 3346
 2002-08-15 16:14:49 +00:00
Chris Lattner
54a8a632ea Add a bunch of testcases for cast-of-casts that should be removed. 
llvm-svn: 3345
 2002-08-15 16:13:29 +00:00
Vikram S. Adve
227bd369e5 Change opLabel numbers for Not and BNot. 
Also, these tree nodes are now binary, not unary.

llvm-svn: 3344
 2002-08-15 14:20:45 +00:00
Vikram S. Adve
21b0deb4ab Unary Not (boolean and bitwise) is no longer a separate LLVM instruction 
but is instead implemented with XOR.  Note that the InstrForest opLabels
for Not and BNot remain the same, i.e., the XOR is recognized and
represented as a (boolean or bitwise) Not when building the instruction
trees.  But these tree nodes are now binary, not unary.

llvm-svn: 3343
 2002-08-15 14:19:22 +00:00
Vikram S. Adve
5e22d4f669 Revise code generation for unary Not (boolean and bitwise), which is 
no longer a separate instruction but is instead implemented with XOR.

llvm-svn: 3342
 2002-08-15 14:17:37 +00:00
Vikram S. Adve
c66b996e40 Added more helper functions for binary instructions emulating 
unary Neg and Not: isNeg, isNot, getNegArgument, and getNotArgument.

llvm-svn: 3341
 2002-08-15 14:15:48 +00:00
Vikram S. Adve
7bad3cdc7a Add tests for unary NOT operations. 
llvm-svn: 3340
 2002-08-15 14:09:56 +00:00
Chris Lattner
83f92a7237 Implement capability to fold this: 
uint %test4(int %A, int %B) {
        %COND = setlt int %A, %B                ; <bool> [#uses=1]
        %result = cast bool %COND to uint               ; <uint> [#uses=1]
        ret uint %result
}
into a single cast instruction.

llvm-svn: 3339
 2002-08-14 23:21:10 +00:00
Chris Lattner
de33f53011 Fix testcase to actually test what we think we are 
llvm-svn: 3338
 2002-08-14 23:01:19 +00:00
Chris Lattner
be85bafab2 Avoid creating 'load X, 0' instead of just 'load X' 
This _trivial_ change causes GCSE and LICM to be much more effective at
hoisting loads.  Before it would not be able to eliminate 'load X' if there
was just a dominating 'load X, 0' because the expressions were not identical.

llvm-svn: 3337
 2002-08-14 22:11:52 +00:00
Chris Lattner
80b897953e Avoid inserting an entry block unless we need it 
llvm-svn: 3336
 2002-08-14 21:35:02 +00:00
Chris Lattner
2f101c0f0e Gross, some whitespace escaped 
llvm-svn: 3335
 2002-08-14 20:07:01 +00:00
Chris Lattner
952ae7e3b2 Fix bug in documentation 
llvm-svn: 3334
 2002-08-14 20:06:13 +00:00
Chris Lattner
9294035c00 *** empty log message *** 
llvm-svn: 3333
 2002-08-14 19:29:38 +00:00
Chris Lattner
62ae28b6e7 This file does not belong here. 
llvm-svn: 3332
 2002-08-14 19:29:32 +00:00
Chris Lattner
03ab577d77 Fix tests that use the now dead not instruction 
llvm-svn: 3331
 2002-08-14 19:28:22 +00:00
Chris Lattner
55bdf1fec4 Fix testcases that used to now dead 'not' instruction 
llvm-svn: 3330
 2002-08-14 19:28:09 +00:00
Chris Lattner
7f5aa43c5d Change not's to xors 
llvm-svn: 3329
 2002-08-14 19:26:34 +00:00
Chris Lattner
6a9d88347a Remove support for Not ConstantExpr. This simplifies the unary case to only 
have to support the cast instruction, so the function is renamed to getCast.

llvm-svn: 3328
 2002-08-14 18:24:09 +00:00
Chris Lattner
760f32d641 Fix bug introduced in last checkin due to CastInst not being visible 
llvm-svn: 3327
 2002-08-14 18:22:19 +00:00
Chris Lattner
d909e03b2e Remove support for unary operators. 
llvm-svn: 3326
 2002-08-14 18:19:46 +00:00
Chris Lattner
7a018a27b2 Remove reference to GenericUnaryInst class 
llvm-svn: 3325
 2002-08-14 18:18:50 +00:00
Chris Lattner
0e17a44326 Remove support for unary instructions 
llvm-svn: 3324
 2002-08-14 18:18:28 +00:00
Chris Lattner
980bf4b44d Remove support for NOT instruction 
llvm-svn: 3323
 2002-08-14 18:18:02 +00:00
Chris Lattner
34a9a81756 Remove extra #includes 
llvm-svn: 3322
 2002-08-14 18:17:32 +00:00
Chris Lattner
9a0912fb14 Remove constant propogation support for NOT instruction 
llvm-svn: 3321
 2002-08-14 18:17:07 +00:00
Chris Lattner
119695e390 Remove support for NOT instruction 
llvm-svn: 3320
 2002-08-14 18:00:52 +00:00
Chris Lattner
c152083997 Remove information about dead 'not' instruction 
llvm-svn: 3319
 2002-08-14 17:55:59 +00:00
Chris Lattner
c264beb7c5 Remove support for unary operators 
llvm-svn: 3318
 2002-08-14 17:53:45 +00:00
Chris Lattner
794511bf40 Implement two constructor functions for "unary" instructions 
llvm-svn: 3317
 2002-08-14 17:52:27 +00:00
Chris Lattner
9f528df0ad Remove support forNOT instruction 
llvm-svn: 3316
 2002-08-14 17:52:06 +00:00
Chris Lattner
890adeb7a2 - Fix InstCombine pass to not generate or process NOT instructions 
- Fixed testcases to not use them either.

llvm-svn: 3315
 2002-08-14 17:51:49 +00:00
Chris Lattner
1783814b9f Expose two new static methods from BinaryOperator: createNeg, createNot 
llvm-svn: 3314
 2002-08-14 17:51:29 +00:00
Chris Lattner
c8183d92e3 Remove support for NOT instruction 
llvm-svn: 3313
 2002-08-14 17:45:39 +00:00
Chris Lattner
ce6d033e05 Remove illegal test now that not instruction does not exist. 
llvm-svn: 3312
 2002-08-14 17:44:00 +00:00
Chris Lattner
bb12fdbe3b Make sure there is SOME output always so the test is not rerun when unneccesary. 
llvm-svn: 3311
 2002-08-14 17:38:15 +00:00
Chris Lattner
650f5add3c The not instruction is just a specialized form of XOR 
llvm-svn: 3310
 2002-08-14 17:37:04 +00:00
Chris Lattner
ed328517aa AsmParser turns 'not' instructions into 'xor' instructions now. 
llvm-svn: 3309
 2002-08-14 17:12:33 +00:00
Chris Lattner
26186786e1 Return null on failure, instead of aborting. 
llvm-svn: 3308
 2002-08-14 17:12:13 +00:00
Vikram S. Adve
afb9cae44d Add method MachineInstr::substituteValue() which substitutes 
one Value with another one in all operands and implicit references
of the machine instruction.

Also add method MachineOperand::getVRegValueOrNull().

llvm-svn: 3307
 2002-08-14 16:54:11 +00:00
Vikram S. Adve
87928f2098 Add method MachineInstr::substituteValue() which substitutes 
one Value with another one in all operands and implicit references
of the machine instruction.

llvm-svn: 3306
 2002-08-14 16:52:58 +00:00