xref: /llvm-project/llvm/test/CodeGen/X86/2009-11-16-UnfoldMemOpBug.ll (revision 2f448bf509432c1a19ec46ab8cbc7353c03c6280)
1; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s
2; rdar://7396984
3
4@str = private unnamed_addr constant [28 x i8] c"xxxxxxxxxxxxxxxxxxxxxxxxxxx\00", align 1
5
6define void @t(i32 %count) ssp nounwind {
7entry:
8; CHECK-LABEL: t:
9; CHECK: movups L_str+12(%rip), %xmm0
10; CHECK: movups L_str(%rip), %xmm1
11  %tmp0 = alloca [60 x i8], align 1
12  br label %bb1
13
14bb1:
15; CHECK: LBB0_1:
16; CHECK: movups %xmm0, 12(%rsp)
17; CHECK: movaps %xmm1, (%rsp)
18  %tmp2 = phi i32 [ %tmp3, %bb1 ], [ 0, %entry ]
19  call void @llvm.memcpy.p0.p0.i64(ptr %tmp0, ptr @str, i64 28, i1 false)
20  %tmp3 = add i32 %tmp2, 1
21  %tmp4 = icmp eq i32 %tmp3, %count
22  br i1 %tmp4, label %bb2, label %bb1
23
24bb2:
25  ret void
26}
27
28declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind
29