| ; RUN: opt < %s -newgvn -S | FileCheck %s | |
| ; CHECK-LABEL: @test1 | |
| ; CHECK: ret i32 %arg | |
| define i32 @test1(i32 %arg) { | |
| %cmp = icmp sge i32 %arg, 5 | |
| call void @llvm.assume(i1 %cmp) | |
| ret i32 %arg | |
| } | |
| ; CHECK-LABEL: @test2 | |
| ; CHECK: ret i32 %arg | |
| define i32 @test2(i32 %arg, i1 %b) { | |
| br label %bb | |
| bb: | |
| %a = phi i32 [ 1, %0 ], [ 2, %bb ] | |
| %cmp = icmp eq i32 %arg, %a | |
| call void @llvm.assume(i1 %cmp) | |
| br i1 %b, label %bb, label %end | |
| end: | |
| ret i32 %arg | |
| } | |
| declare void @llvm.assume(i1 %cond) |