| ; RUN: opt < %s -simplifycfg -S | FileCheck %s |
| ; PR2967 |
| |
| target datalayout = |
| "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32" |
| target triple = "i386-pc-linux-gnu" |
| |
| define void @test1(i32 %x) nounwind { |
| entry: |
| %0 = icmp eq i32 %x, 0 ; <i1> [#uses=1] |
| br i1 %0, label %bb, label %return |
| |
| bb: ; preds = %entry |
| %1 = volatile load i32* null |
| unreachable |
| |
| br label %return |
| return: ; preds = %entry |
| ret void |
| ; CHECK: @test1 |
| ; CHECK: volatile load |
| } |
| |
| ; rdar://7958343 |
| define void @test2() nounwind { |
| entry: |
| store i32 4,i32* null |
| ret void |
| |
| ; CHECK: @test2 |
| ; CHECK: call void @llvm.trap |
| ; CHECK: unreachable |
| } |
| |
| ; PR7369 |
| define void @test3() nounwind { |
| entry: |
| volatile store i32 4, i32* null |
| ret void |
| |
| ; CHECK: @test3 |
| ; CHECK: volatile store i32 4, i32* null |
| ; CHECK: ret |
| } |