llvm-mirror

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History

Chris Lattner 0f5ab645eb Generalize not and neg comparison testers to allow constant to be considered not'able and neg'able. This

allows optimization of this:
int %test4(int %A, int %B) {
        %a = xor int %A, -1
        %c = and int %a, 5    ; 5 = ~c2
        %d = xor int %c, -1
        ret int %d
}

into this:
int %test4(int %A, int %B) {            ; No predecessors!
        %c.demorgan = or int %A, -6             ; <int> [#uses=1]
        ret int %c.demorgan
}

llvm-svn: 5736

2003-03-10 23:06:50 +00:00

Analysis

Remove unneccesary forward decl

2003-03-06 16:37:29 +00:00

AsmParser

Fix bug: Assembler/2003-03-03-DuplicateConstant.ll

2003-03-03 23:28:55 +00:00

Bytecode

Infrastructure for more compact bytecode files and REAL support for versioning

2003-03-06 17:55:45 +00:00

CodeGen

Print machine frame objects with the frame offset intrinsic to the machine