diff --git a/test/Regression/Transforms/InstCombine/bswap.ll b/test/Regression/Transforms/InstCombine/bswap.ll new file mode 100644 index 00000000000..75cfc1daed0 --- /dev/null +++ b/test/Regression/Transforms/InstCombine/bswap.ll @@ -0,0 +1,28 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep 'call.*llvm.bswap' | wc -l | grep 2 + +uint %test1(uint %i) { + %tmp1 = shr uint %i, ubyte 24 ; <uint> [#uses=1] + %tmp3 = shr uint %i, ubyte 8 ; <uint> [#uses=1] + %tmp4 = and uint %tmp3, 65280 ; <uint> [#uses=1] + %tmp5 = or uint %tmp1, %tmp4 ; <uint> [#uses=1] + %tmp7 = shl uint %i, ubyte 8 ; <uint> [#uses=1] + %tmp8 = and uint %tmp7, 16711680 ; <uint> [#uses=1] + %tmp9 = or uint %tmp5, %tmp8 ; <uint> [#uses=1] + %tmp11 = shl uint %i, ubyte 24 ; <uint> [#uses=1] + %tmp12 = or uint %tmp9, %tmp11 ; <uint> [#uses=1] + ret uint %tmp12 +} + +uint %test2(uint %arg) { + %tmp2 = shl uint %arg, ubyte 24 ; <uint> [#uses=1] + %tmp4 = shl uint %arg, ubyte 8 ; <uint> [#uses=1] + %tmp5 = and uint %tmp4, 16711680 ; <uint> [#uses=1] + %tmp6 = or uint %tmp2, %tmp5 ; <uint> [#uses=1] + %tmp8 = shr uint %arg, ubyte 8 ; <uint> [#uses=1] + %tmp9 = and uint %tmp8, 65280 ; <uint> [#uses=1] + %tmp10 = or uint %tmp6, %tmp9 ; <uint> [#uses=1] + %tmp12 = shr uint %arg, ubyte 24 ; <uint> [#uses=1] + %tmp14 = or uint %tmp10, %tmp12 ; <uint> [#uses=1] + ret uint %tmp14 +} +