; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -basic-aa -memcpyopt -S < %s -enable-memcpyopt-memoryssa=0 | FileCheck %s
; RUN: opt -basic-aa -memcpyopt -S < %s -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s

target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-apple-macosx10.7.0"

@x = global i32 0

declare void @otherf(i32*)

declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind

; memcpyopt should not touch atomic ops
define void @test1() nounwind uwtable ssp {
; CHECK-LABEL: @test1(
; CHECK-NEXT:    [[X:%.*]] = alloca [101 x i32], align 16
; CHECK-NEXT:    [[BC:%.*]] = bitcast [101 x i32]* [[X]] to i8*
; CHECK-NEXT:    call void @llvm.memset.p0i8.i64(i8* align 16 [[BC]], i8 0, i64 400, i1 false)
; CHECK-NEXT:    [[GEP1:%.*]] = getelementptr inbounds [101 x i32], [101 x i32]* [[X]], i32 0, i32 100
; CHECK-NEXT:    store atomic i32 0, i32* [[GEP1]] unordered, align 4
; CHECK-NEXT:    [[GEP2:%.*]] = getelementptr inbounds [101 x i32], [101 x i32]* [[X]], i32 0, i32 0
; CHECK-NEXT:    call void @otherf(i32* [[GEP2]])
; CHECK-NEXT:    ret void
;
  %x = alloca [101 x i32], align 16
  %bc = bitcast [101 x i32]* %x to i8*
  call void @llvm.memset.p0i8.i64(i8* align 16 %bc, i8 0, i64 400, i1 false)
  %gep1 = getelementptr inbounds [101 x i32], [101 x i32]* %x, i32 0, i32 100
  store atomic i32 0, i32* %gep1 unordered, align 4
  %gep2 = getelementptr inbounds [101 x i32], [101 x i32]* %x, i32 0, i32 0
  call void @otherf(i32* %gep2)
  ret void
}

; memcpyopt across unordered store
define void @test2() nounwind uwtable ssp {
; CHECK-LABEL: @test2(
; CHECK-NEXT:    [[OLD:%.*]] = alloca i32, align 4
; CHECK-NEXT:    [[NEW:%.*]] = alloca i32, align 4
; CHECK-NEXT:    call void @otherf(i32* nocapture [[NEW]])
; CHECK-NEXT:    store atomic i32 0, i32* @x unordered, align 4
; CHECK-NEXT:    call void @otherf(i32* nocapture [[NEW]])
; CHECK-NEXT:    ret void
;
  %old = alloca i32
  %new = alloca i32
  call void @otherf(i32* nocapture %old)
  store atomic i32 0, i32* @x unordered, align 4
  %v = load i32, i32* %old
  store i32 %v, i32* %new
  call void @otherf(i32* nocapture %new)
  ret void
}

