Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/MemCpyOpt/atomic.ll

@@ -1,41 +0,0 @@
-; RUN: opt -basicaa -memcpyopt -S < %s | 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, i32, i1) nounwind
-
-; memcpyopt should not touch atomic ops
-define void @test1() nounwind uwtable ssp {
-; CHECK: test1
-; CHECK: store atomic
-  %x = alloca [101 x i32], align 16
-  %bc = bitcast [101 x i32]* %x to i8*
-  call void @llvm.memset.p0i8.i64(i8* %bc, i8 0, i64 400, i32 16, 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: test2
-; CHECK: call
-; CHECK-NEXT: store atomic
-; CHECK-NEXT: call
-  %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
-}
-