| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| declare i8 @gen8() |
| declare void @use8(i8) |
| |
| @a = global i8 17 |
| |
| define i8 @t0_scalar(i8 %x, i8 %y) { |
| ; CHECK-LABEL: @t0_scalar( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i8 [[TMP1]], 42 |
| ; CHECK-NEXT: ret i8 [[R]] |
| ; |
| %i0 = xor i8 %x, 42 |
| %r = xor i8 %i0, %y |
| ret i8 %r |
| } |
| |
| define <2 x i8> @t1_splatvec(<2 x i8> %x, <2 x i8> %y) { |
| ; CHECK-LABEL: @t1_splatvec( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i8> [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor <2 x i8> [[TMP1]], <i8 42, i8 42> |
| ; CHECK-NEXT: ret <2 x i8> [[R]] |
| ; |
| %i0 = xor <2 x i8> %x, <i8 42, i8 42> |
| %r = xor <2 x i8> %i0, %y |
| ret <2 x i8> %r |
| } |
| define <2 x i8> @t2_vec(<2 x i8> %x, <2 x i8> %y) { |
| ; CHECK-LABEL: @t2_vec( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i8> [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor <2 x i8> [[TMP1]], <i8 42, i8 24> |
| ; CHECK-NEXT: ret <2 x i8> [[R]] |
| ; |
| %i0 = xor <2 x i8> %x, <i8 42, i8 24> |
| %r = xor <2 x i8> %i0, %y |
| ret <2 x i8> %r |
| } |
| define <2 x i8> @t3_vec_undef(<2 x i8> %x, <2 x i8> %y) { |
| ; CHECK-LABEL: @t3_vec_undef( |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i8> [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor <2 x i8> [[TMP1]], <i8 42, i8 undef> |
| ; CHECK-NEXT: ret <2 x i8> [[R]] |
| ; |
| %i0 = xor <2 x i8> %x, <i8 42, i8 undef> |
| %r = xor <2 x i8> %i0, %y |
| ret <2 x i8> %r |
| } |
| |
| define i8 @t4_extrause(i8 %x, i8 %y) { |
| ; CHECK-LABEL: @t4_extrause( |
| ; CHECK-NEXT: [[I0:%.*]] = xor i8 [[X:%.*]], 42 |
| ; CHECK-NEXT: call void @use8(i8 [[I0]]) |
| ; CHECK-NEXT: [[R:%.*]] = xor i8 [[I0]], [[Y:%.*]] |
| ; CHECK-NEXT: ret i8 [[R]] |
| ; |
| %i0 = xor i8 %x, 42 |
| call void @use8(i8 %i0) |
| %r = xor i8 %i0, %y |
| ret i8 %r |
| } |
| |
| define i8 @t5_commutativity(i8 %x) { |
| ; CHECK-LABEL: @t5_commutativity( |
| ; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8() |
| ; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[Y]], [[X:%.*]] |
| ; CHECK-NEXT: [[R:%.*]] = xor i8 [[TMP1]], 42 |
| ; CHECK-NEXT: ret i8 [[R]] |
| ; |
| %i0 = xor i8 %x, 42 |
| %y = call i8 @gen8() |
| %r = xor i8 %y, %i0 |
| ret i8 %r |
| } |
| |
| @global_constant = internal global i32 0, align 4 |
| @global_constant2 = internal global i32 0, align 4 |
| |
| define i8 @constantexpr(i8 %or) local_unnamed_addr #0 { |
| ; CHECK-LABEL: @constantexpr( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[R:%.*]] = xor i8 [[OR:%.*]], xor (i8 ptrtoint (i32* @global_constant to i8), i8 ptrtoint (i32* @global_constant2 to i8)) |
| ; CHECK-NEXT: ret i8 [[R]] |
| ; |
| entry: |
| %r = xor i8 %or, xor (i8 xor (i8 ptrtoint (i32* @global_constant to i8), i8 -1), i8 xor (i8 ptrtoint (i32* @global_constant2 to i8), i8 -1)) |
| ret i8 %r |
| } |
| |
| @global_constant3 = external global [6 x [1 x i64]], align 1 |
| @global_constant4 = external global i64, align 1 |
| @global_constant5 = external global i16*, align 1 |
| |
| define i16 @constantexpr2() { |
| ; CHECK-LABEL: @constantexpr2( |
| ; CHECK-NEXT: [[I2:%.*]] = load i16*, i16** @global_constant5, align 1 |
| ; CHECK-NEXT: [[I3:%.*]] = load i16, i16* [[I2]], align 1 |
| ; CHECK-NEXT: [[I5:%.*]] = xor i16 [[I3]], xor (i16 zext (i1 icmp ne (i64* getelementptr inbounds ([6 x [1 x i64]], [6 x [1 x i64]]* @global_constant3, i64 0, i64 5, i64 0), i64* @global_constant4) to i16), i16 -1) |
| ; CHECK-NEXT: ret i16 [[I5]] |
| ; |
| %i0 = icmp ne i64* getelementptr inbounds ([6 x [1 x i64]], [6 x [1 x i64]]* @global_constant3, i16 0, i16 5, i16 0), @global_constant4 |
| %i1 = zext i1 %i0 to i16 |
| %i2 = load i16*, i16** @global_constant5, align 1 |
| %i3 = load i16, i16* %i2, align 1 |
| %i4 = xor i16 %i3, %i1 |
| %i5 = xor i16 %i4, -1 |
| ret i16 %i5 |
| } |