1 ; RUN: opt -instcombine -S < %s | FileCheck %s 2 3 ; <rdar://problem/8606771> 4 define i32 @main(i32 %argc) { 5 ; CHECK-LABEL: @main( 6 ; CHECK-NEXT: [[TMP3151:%.*]] = trunc i32 %argc to i8 7 ; CHECK-NEXT: [[TMP1:%.*]] = shl i8 [[TMP3151]], 5 8 ; CHECK-NEXT: [[TMP4126:%.*]] = and i8 [[TMP1]], 64 9 ; CHECK-NEXT: [[TMP4127:%.*]] = xor i8 [[TMP4126]], 64 10 ; CHECK-NEXT: [[TMP4086:%.*]] = zext i8 [[TMP4127]] to i32 11 ; CHECK-NEXT: ret i32 [[TMP4086]] 12 ; 13 %tmp3151 = trunc i32 %argc to i8 14 %tmp3161 = or i8 %tmp3151, -17 15 %tmp3162 = and i8 %tmp3151, 122 16 %tmp3163 = xor i8 %tmp3162, -17 17 %tmp4114 = shl i8 %tmp3163, 6 18 %tmp4115 = xor i8 %tmp4114, %tmp3163 19 %tmp4120 = xor i8 %tmp3161, %tmp4115 20 %tmp4126 = lshr i8 %tmp4120, 7 21 %tmp4127 = mul i8 %tmp4126, 64 22 %tmp4086 = zext i8 %tmp4127 to i32 23 ret i32 %tmp4086 24 } 25 26 ; rdar://8739316 27 define i8 @foo(i8 %arg, i8 %arg1) { 28 ; CHECK-LABEL: @foo( 29 ; CHECK-NEXT: [[TMP:%.*]] = shl i8 %arg, 7 30 ; CHECK-NEXT: [[TMP2:%.*]] = and i8 %arg1, 84 31 ; CHECK-NEXT: [[TMP3:%.*]] = and i8 %arg1, -118 32 ; CHECK-NEXT: [[TMP4:%.*]] = and i8 %arg1, 33 33 ; CHECK-NEXT: [[TMP5:%.*]] = sub nsw i8 40, [[TMP2]] 34 ; CHECK-NEXT: [[TMP6:%.*]] = and i8 [[TMP5]], 84 35 ; CHECK-NEXT: [[TMP7:%.*]] = or i8 [[TMP4]], [[TMP6]] 36 ; CHECK-NEXT: [[TMP8:%.*]] = xor i8 [[TMP]], [[TMP3]] 37 ; CHECK-NEXT: [[TMP9:%.*]] = or i8 [[TMP7]], [[TMP8]] 38 ; CHECK-NEXT: [[TMP10:%.*]] = lshr i8 [[TMP8]], 7 39 ; CHECK-NEXT: [[TMP11:%.*]] = shl nuw nsw i8 [[TMP10]], 5 40 ; CHECK-NEXT: [[TMP12:%.*]] = xor i8 [[TMP11]], [[TMP9]] 41 ; CHECK-NEXT: ret i8 [[TMP12]] 42 ; 43 %tmp = shl i8 %arg, 7 44 %tmp2 = and i8 %arg1, 84 45 %tmp3 = and i8 %arg1, -118 46 %tmp4 = and i8 %arg1, 33 47 %tmp5 = sub i8 -88, %tmp2 48 %tmp6 = and i8 %tmp5, 84 49 %tmp7 = or i8 %tmp4, %tmp6 50 %tmp8 = xor i8 %tmp, %tmp3 51 %tmp9 = or i8 %tmp7, %tmp8 52 %tmp10 = lshr i8 %tmp8, 7 53 %tmp11 = shl i8 %tmp10, 5 54 %tmp12 = xor i8 %tmp11, %tmp9 55 ret i8 %tmp12 56 } 57 58
