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34 lines
1.1 KiB
LLVM
34 lines
1.1 KiB
LLVM
; I'm not really sure if instcombine should do things like these. LevelRaise
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; already sufficiently takes care of these cases, but level raise is really
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; slow. Might it be better to make there be an instcombine prepass before
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; level raise that takes care of the obvious stuff?
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; RUN: if as < %s | opt -instcombine | dis | grep cast
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; RUN: then exit 1
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; RUN: else exit 0
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; RUN: fi
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bool %test1(int %X) {
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%A = cast int %X to uint
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%c = setne uint %A, 0 ; Convert to setne int %X, 0
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ret bool %c
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}
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bool %test2(int %X, int %Y) {
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%A = cast int %X to uint
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%B = cast int %Y to uint
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%c = setne uint %A, %B ; Convert to setne int %X, %Y
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ret bool %c
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}
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bool %test3(int %A, int %B) {
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%cond216 = setlt int %A, %B ; <bool> [#uses=1]
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%cst109 = cast bool %cond216 to uint ; <uint> [#uses=1]
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%cond219 = setgt int %A, %B ; <bool> [#uses=1]
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%cst111 = cast bool %cond219 to uint ; <uint> [#uses=1]
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%reg113 = and uint %cst109, %cst111 ; <uint> [#uses=1]
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%cst222 = cast uint %reg113 to bool ; <int> [#uses=1]
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ret bool %cst222
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}
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