| ; RUN: opt -S -simplifycfg < %s | FileCheck %s |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @GV = external constant i64* |
| |
| define i64* @test1(i1 %cond, i8* %P) { |
| entry: |
| br i1 %cond, label %if, label %then |
| |
| then: |
| %bc = bitcast i8* %P to i64* |
| br label %join |
| |
| if: |
| %load = load i64*, i64** @GV, align 8, !dereferenceable !0 |
| br label %join |
| |
| join: |
| %phi = phi i64* [ %bc, %then ], [ %load, %if ] |
| ret i64* %phi |
| } |
| |
| ; CHECK-LABEL: define i64* @test1( |
| ; CHECK: %[[bc:.*]] = bitcast i8* %P to i64* |
| ; CHECK: %[[load:.*]] = load i64*, i64** @GV, align 8{{$}} |
| ; CHECK: %[[phi:.*]] = select i1 %cond, i64* %[[load]], i64* %[[bc]] |
| ; CHECK: ret i64* %[[phi]] |
| |
| |
| !0 = !{i64 8} |
