1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=newgvn -S | FileCheck %s
5 define i8 @src(ptr %a, ptr %b, i1 %c) {
7 ; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[BB2:%.*]]
9 ; CHECK-NEXT: [[LB1:%.*]] = load i8, ptr [[B:%.*]], align 1
10 ; CHECK-NEXT: [[TOBOOL3_NOT_I:%.*]] = icmp eq i8 [[LB1]], 0
11 ; CHECK-NEXT: br i1 [[TOBOOL3_NOT_I]], label [[BB4:%.*]], label [[BB3:%.*]]
13 ; CHECK-NEXT: [[LB2:%.*]] = load i8, ptr [[B]], align 1
14 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i8 0, [[LB2]]
15 ; CHECK-NEXT: tail call void @llvm.assume(i1 [[CMP_NOT_I]])
16 ; CHECK-NEXT: br label [[BB3]]
18 ; CHECK-NEXT: [[LA:%.*]] = load i8, ptr [[A:%.*]], align 1
19 ; CHECK-NEXT: br label [[BB4]]
21 ; CHECK-NEXT: ret i8 0
23 br i1 %c, label %bb1, label %bb2
26 %lb1 = load i8, ptr %b
27 %tobool3.not.i = icmp eq i8 %lb1, 0
28 br i1 %tobool3.not.i, label %bb4, label %bb3
31 %lb2 = load i8, ptr %b
32 %cmp.not.i = icmp ult i8 0, %lb2
33 tail call void @llvm.assume(i1 %cmp.not.i)
37 %p = phi i8 [ %lb1, %bb1 ], [ %lb2, %bb2 ]
46 declare void @llvm.assume(i1)