| OLD | NEW |
| 1 ; This is a test of C-level conversion operations that clang lowers | 1 ; This is a test of C-level conversion operations that clang lowers |
| 2 ; into pairs of shifts. | 2 ; into pairs of shifts. |
| 3 | 3 |
| 4 ; RUN: %p2i -i %s --filetype=obj --disassemble --no-local-syms --args -O2 \ | 4 ; RUN: %p2i -i %s --filetype=obj --disassemble --no-local-syms --args -O2 \ |
| 5 ; RUN: | FileCheck %s | 5 ; RUN: | FileCheck %s |
| 6 ; RUN: %p2i -i %s --filetype=obj --disassemble --no-local-syms --args -Om1 \ | 6 ; RUN: %p2i -i %s --filetype=obj --disassemble --no-local-syms --args -Om1 \ |
| 7 ; RUN: | FileCheck %s | 7 ; RUN: | FileCheck %s |
| 8 | 8 |
| 9 @i1 = internal global [4 x i8] zeroinitializer, align 4 | 9 @i1 = internal global [4 x i8] zeroinitializer, align 4 |
| 10 @i2 = internal global [4 x i8] zeroinitializer, align 4 | 10 @i2 = internal global [4 x i8] zeroinitializer, align 4 |
| 11 @u1 = internal global [4 x i8] zeroinitializer, align 4 | 11 @u1 = internal global [4 x i8] zeroinitializer, align 4 |
| 12 | 12 |
| 13 define void @conv1() { | 13 define void @conv1() { |
| 14 entry: | 14 entry: |
| 15 %__0 = bitcast [4 x i8]* @u1 to i32* | 15 %__0 = bitcast [4 x i8]* @u1 to i32* |
| 16 %v0 = load i32* %__0, align 1 | 16 %v0 = load i32, i32* %__0, align 1 |
| 17 %sext = shl i32 %v0, 24 | 17 %sext = shl i32 %v0, 24 |
| 18 %v1 = ashr i32 %sext, 24 | 18 %v1 = ashr i32 %sext, 24 |
| 19 %__4 = bitcast [4 x i8]* @i1 to i32* | 19 %__4 = bitcast [4 x i8]* @i1 to i32* |
| 20 store i32 %v1, i32* %__4, align 1 | 20 store i32 %v1, i32* %__4, align 1 |
| 21 ret void | 21 ret void |
| 22 } | 22 } |
| 23 ; CHECK-LABEL: conv1 | 23 ; CHECK-LABEL: conv1 |
| 24 ; CHECK: shl {{.*}},0x18 | 24 ; CHECK: shl {{.*}},0x18 |
| 25 ; CHECK: sar {{.*}},0x18 | 25 ; CHECK: sar {{.*}},0x18 |
| 26 | 26 |
| 27 define void @conv2() { | 27 define void @conv2() { |
| 28 entry: | 28 entry: |
| 29 %__0 = bitcast [4 x i8]* @u1 to i32* | 29 %__0 = bitcast [4 x i8]* @u1 to i32* |
| 30 %v0 = load i32* %__0, align 1 | 30 %v0 = load i32, i32* %__0, align 1 |
| 31 %sext1 = shl i32 %v0, 16 | 31 %sext1 = shl i32 %v0, 16 |
| 32 %v1 = ashr i32 %sext1, 16 | 32 %v1 = ashr i32 %sext1, 16 |
| 33 %__4 = bitcast [4 x i8]* @i2 to i32* | 33 %__4 = bitcast [4 x i8]* @i2 to i32* |
| 34 store i32 %v1, i32* %__4, align 1 | 34 store i32 %v1, i32* %__4, align 1 |
| 35 ret void | 35 ret void |
| 36 } | 36 } |
| 37 ; CHECK-LABEL: conv2 | 37 ; CHECK-LABEL: conv2 |
| 38 ; CHECK: shl {{.*}},0x10 | 38 ; CHECK: shl {{.*}},0x10 |
| 39 ; CHECK: sar {{.*}},0x10 | 39 ; CHECK: sar {{.*}},0x10 |
| OLD | NEW |