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llvm-mirror/test/Transforms/InstCombine/shift-simplify.ll

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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
; RUN: egrep {shl|lshr|ashr} | wc -l | grep 3
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define i32 @test0(i32 %A, i32 %B, i32 %C) {
%X = shl i32 %A, %C
%Y = shl i32 %B, %C
%Z = and i32 %X, %Y
ret i32 %Z
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}
define i32 @test1(i32 %A, i32 %B, i32 %C) {
%X = lshr i32 %A, %C
%Y = lshr i32 %B, %C
%Z = or i32 %X, %Y
ret i32 %Z
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}
define i32 @test2(i32 %A, i32 %B, i32 %C) {
%X = ashr i32 %A, %C
%Y = ashr i32 %B, %C
%Z = xor i32 %X, %Y
ret i32 %Z
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}