; I'm not really sure if instcombine should do things like these. LevelRaise ; already sufficiently takes care of these cases, but level raise is really ; slow. Might it be better to make there be an instcombine prepass before ; level raise that takes care of the obvious stuff? ; RUN: if as < %s | opt -instcombine | dis | grep cast ; RUN: then exit 1 ; RUN: else exit 0 ; RUN: fi bool %test1(int %X) { %A = cast int %X to uint %c = setne uint %A, 0 ; Convert to setne int %X, 0 ret bool %c } bool %test2(int %X, int %Y) { %A = cast int %X to uint %B = cast int %Y to uint %c = setne uint %A, %B ; Convert to setne int %X, %Y ret bool %c } bool %test3(int %A, int %B) { %cond216 = setlt int %A, %B ; [#uses=1] %cst109 = cast bool %cond216 to uint ; [#uses=1] %cond219 = setgt int %A, %B ; [#uses=1] %cst111 = cast bool %cond219 to uint ; [#uses=1] %reg113 = and uint %cst109, %cst111 ; [#uses=1] %cst222 = cast uint %reg113 to bool ; [#uses=1] ret bool %cst222 } int %test4(int %A) { %B = cast int %A to uint %C = shl uint %B, ubyte 1 %D = cast uint %C to int ret int %D }