| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | |
| ; RUN: opt -passes=simplifycfg,instcombine -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s | |
| %struct.test = type { i8, [3 x i8] } | |
| define i32 @get(ptr nocapture readonly %arg) { | |
| ; CHECK-LABEL: @get( | |
| ; CHECK-NEXT: bb: | |
| ; CHECK-NEXT: [[I1:%.*]] = load i8, ptr [[ARG:%.*]], 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: | |
| %i1 = load i8, ptr %arg, 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 | |
| } |