| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -instcombine -S < %s | FileCheck %s |
| |
| %struct.test = type { i8, [3 x i8] } |
| |
| define i32 @get(%struct.test* nocapture readonly %arg) { |
| ; CHECK-LABEL: @get( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[I:%.*]] = getelementptr inbounds [[STRUCT_TEST:%.*]], %struct.test* [[ARG:%.*]], i64 0, i32 0 |
| ; CHECK-NEXT: [[I1:%.*]] = load i8, i8* [[I]], align 4 |
| ; CHECK-NEXT: [[TMP0:%.*]] = and i8 [[I1]], 3 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i8 [[TMP0]], 0 |
| ; CHECK-NEXT: [[I9:%.*]] = zext i1 [[TMP1]] to i32 |
| ; CHECK-NEXT: ret i32 [[I9]] |
| ; |
| bb: |
| %i = getelementptr inbounds %struct.test, %struct.test* %arg, i64 0, i32 0 |
| %i1 = load i8, i8* %i, align 4 |
| %i2 = and i8 %i1, 1 |
| %i3 = icmp eq i8 %i2, 0 |
| br i1 %i3, label %bb4, label %bb8 |
| |
| bb4: |
| %i5 = lshr i8 %i1, 1 |
| %i6 = and i8 %i5, 1 |
| %i7 = zext i8 %i6 to i32 |
| br label %bb8 |
| |
| bb8: |
| %i9 = phi i32 [ 1, %bb ], [ %i7, %bb4 ] |
| ret i32 %i9 |
| } |
