| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; This test makes sure that these instructions are properly eliminated. |
| ; |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| define i32 @shl_C1_add_A_C2_i32(i16 %A) { |
| ; CHECK-LABEL: @shl_C1_add_A_C2_i32( |
| ; CHECK-NEXT: [[B:%.*]] = zext i16 [[A:%.*]] to i32 |
| ; CHECK-NEXT: [[D:%.*]] = shl i32 192, [[B]] |
| ; CHECK-NEXT: ret i32 [[D]] |
| ; |
| %B = zext i16 %A to i32 |
| %C = add i32 %B, 5 |
| %D = shl i32 6, %C |
| ret i32 %D |
| } |
| |
| define i32 @ashr_C1_add_A_C2_i32(i32 %A) { |
| ; CHECK-LABEL: @ashr_C1_add_A_C2_i32( |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| %B = and i32 %A, 65535 |
| %C = add i32 %B, 5 |
| %D = ashr i32 6, %C |
| ret i32 %D |
| } |
| |
| define i32 @lshr_C1_add_A_C2_i32(i32 %A) { |
| ; CHECK-LABEL: @lshr_C1_add_A_C2_i32( |
| ; CHECK-NEXT: [[B:%.*]] = and i32 [[A:%.*]], 65535 |
| ; CHECK-NEXT: [[D:%.*]] = shl i32 192, [[B]] |
| ; CHECK-NEXT: ret i32 [[D]] |
| ; |
| %B = and i32 %A, 65535 |
| %C = add i32 %B, 5 |
| %D = shl i32 6, %C |
| ret i32 %D |
| } |
| |
| define <4 x i32> @shl_C1_add_A_C2_v4i32(<4 x i16> %A) { |
| ; CHECK-LABEL: @shl_C1_add_A_C2_v4i32( |
| ; CHECK-NEXT: [[B:%.*]] = zext <4 x i16> [[A:%.*]] to <4 x i32> |
| ; CHECK-NEXT: [[D:%.*]] = shl <4 x i32> <i32 6, i32 4, i32 poison, i32 -458752>, [[B]] |
| ; CHECK-NEXT: ret <4 x i32> [[D]] |
| ; |
| %B = zext <4 x i16> %A to <4 x i32> |
| %C = add <4 x i32> %B, <i32 0, i32 1, i32 50, i32 16> |
| %D = shl <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %C |
| ret <4 x i32> %D |
| } |
| |
| define <4 x i32> @ashr_C1_add_A_C2_v4i32(<4 x i32> %A) { |
| ; CHECK-LABEL: @ashr_C1_add_A_C2_v4i32( |
| ; CHECK-NEXT: [[B:%.*]] = and <4 x i32> [[A:%.*]], <i32 0, i32 15, i32 255, i32 65535> |
| ; CHECK-NEXT: [[D:%.*]] = ashr <4 x i32> <i32 6, i32 1, i32 poison, i32 -1>, [[B]] |
| ; CHECK-NEXT: ret <4 x i32> [[D]] |
| ; |
| %B = and <4 x i32> %A, <i32 0, i32 15, i32 255, i32 65535> |
| %C = add <4 x i32> %B, <i32 0, i32 1, i32 50, i32 16> |
| %D = ashr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %C |
| ret <4 x i32> %D |
| } |
| |
| define <4 x i32> @lshr_C1_add_A_C2_v4i32(<4 x i32> %A) { |
| ; CHECK-LABEL: @lshr_C1_add_A_C2_v4i32( |
| ; CHECK-NEXT: [[B:%.*]] = and <4 x i32> [[A:%.*]], <i32 0, i32 15, i32 255, i32 65535> |
| ; CHECK-NEXT: [[D:%.*]] = lshr <4 x i32> <i32 6, i32 1, i32 poison, i32 65535>, [[B]] |
| ; CHECK-NEXT: ret <4 x i32> [[D]] |
| ; |
| %B = and <4 x i32> %A, <i32 0, i32 15, i32 255, i32 65535> |
| %C = add <4 x i32> %B, <i32 0, i32 1, i32 50, i32 16> |
| %D = lshr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %C |
| ret <4 x i32> %D |
| } |
| |
| define <4 x i32> @shl_C1_add_A_C2_v4i32_splat(i16 %I) { |
| ; CHECK-LABEL: @shl_C1_add_A_C2_v4i32_splat( |
| ; CHECK-NEXT: [[A:%.*]] = zext i16 [[I:%.*]] to i32 |
| ; CHECK-NEXT: [[B:%.*]] = insertelement <4 x i32> poison, i32 [[A]], i32 0 |
| ; CHECK-NEXT: [[C:%.*]] = shufflevector <4 x i32> [[B]], <4 x i32> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[E:%.*]] = shl <4 x i32> <i32 6, i32 4, i32 poison, i32 -458752>, [[C]] |
| ; CHECK-NEXT: ret <4 x i32> [[E]] |
| ; |
| %A = zext i16 %I to i32 |
| %B = insertelement <4 x i32> poison, i32 %A, i32 0 |
| %C = shufflevector <4 x i32> %B, <4 x i32> poison, <4 x i32> zeroinitializer |
| %D = add <4 x i32> %C, <i32 0, i32 1, i32 50, i32 16> |
| %E = shl <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %D |
| ret <4 x i32> %E |
| } |
| |
| define <4 x i32> @ashr_C1_add_A_C2_v4i32_splat(i16 %I) { |
| ; CHECK-LABEL: @ashr_C1_add_A_C2_v4i32_splat( |
| ; CHECK-NEXT: [[A:%.*]] = zext i16 [[I:%.*]] to i32 |
| ; CHECK-NEXT: [[B:%.*]] = insertelement <4 x i32> poison, i32 [[A]], i32 0 |
| ; CHECK-NEXT: [[C:%.*]] = shufflevector <4 x i32> [[B]], <4 x i32> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[E:%.*]] = ashr <4 x i32> <i32 6, i32 1, i32 poison, i32 -1>, [[C]] |
| ; CHECK-NEXT: ret <4 x i32> [[E]] |
| ; |
| %A = zext i16 %I to i32 |
| %B = insertelement <4 x i32> poison, i32 %A, i32 0 |
| %C = shufflevector <4 x i32> %B, <4 x i32> poison, <4 x i32> zeroinitializer |
| %D = add <4 x i32> %C, <i32 0, i32 1, i32 50, i32 16> |
| %E = ashr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %D |
| ret <4 x i32> %E |
| } |
| |
| define <4 x i32> @lshr_C1_add_A_C2_v4i32_splat(i16 %I) { |
| ; CHECK-LABEL: @lshr_C1_add_A_C2_v4i32_splat( |
| ; CHECK-NEXT: [[A:%.*]] = zext i16 [[I:%.*]] to i32 |
| ; CHECK-NEXT: [[B:%.*]] = insertelement <4 x i32> poison, i32 [[A]], i32 0 |
| ; CHECK-NEXT: [[C:%.*]] = shufflevector <4 x i32> [[B]], <4 x i32> poison, <4 x i32> zeroinitializer |
| ; CHECK-NEXT: [[E:%.*]] = lshr <4 x i32> <i32 6, i32 1, i32 poison, i32 65535>, [[C]] |
| ; CHECK-NEXT: ret <4 x i32> [[E]] |
| ; |
| %A = zext i16 %I to i32 |
| %B = insertelement <4 x i32> poison, i32 %A, i32 0 |
| %C = shufflevector <4 x i32> %B, <4 x i32> poison, <4 x i32> zeroinitializer |
| %D = add <4 x i32> %C, <i32 0, i32 1, i32 50, i32 16> |
| %E = lshr <4 x i32> <i32 6, i32 2, i32 1, i32 -7>, %D |
| ret <4 x i32> %E |
| } |