| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -S -passes='move-auto-init' -verify-memoryssa | FileCheck %s |
| |
| ; Make sure that volatile operationsa re not moved. This is overly conservative. |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define void @foo(i32 %x) { |
| ; CHECK-LABEL: @foo( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[VAL:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: store volatile i32 -1431655766, ptr [[VAL]], align 4, !annotation !0 |
| ; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[X:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] |
| ; CHECK: if.then: |
| ; CHECK-NEXT: call void @dump(ptr [[VAL]]) |
| ; CHECK-NEXT: br label [[IF_END]] |
| ; CHECK: if.end: |
| ; CHECK-NEXT: ret void |
| ; |
| |
| entry: |
| %val = alloca i32, align 4 |
| store volatile i32 -1431655766, ptr %val, align 4, !annotation !0 |
| %tobool = icmp ne i32 %x, 0 |
| br i1 %tobool, label %if.then, label %if.end |
| |
| if.then: |
| call void @dump(ptr %val) |
| br label %if.end |
| |
| if.end: |
| ret void |
| } |
| |
| declare void @dump(ptr) |
| |
| !0 = !{!"auto-init"} |
