llvm-6502/test/CodeGen/X86/2009-11-16-UnfoldMemOpBug.ll

29 lines
833 B
LLVM

; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
; rdar://7396984
@str = private constant [28 x i8] c"xxxxxxxxxxxxxxxxxxxxxxxxxxx\00", align 1
define void @t(i32 %count) ssp nounwind {
entry:
; CHECK: t:
; CHECK: movq ___stack_chk_guard@GOTPCREL(%rip)
; CHECK: movups L_str(%rip), %xmm0
%tmp0 = alloca [60 x i8], align 1
%tmp1 = getelementptr inbounds [60 x i8]* %tmp0, i64 0, i64 0
br label %bb1
bb1:
; CHECK: LBB1_1:
; CHECK: movaps %xmm0, (%rsp)
%tmp2 = phi i32 [ %tmp3, %bb1 ], [ 0, %entry ]
call void @llvm.memcpy.i64(i8* %tmp1, i8* getelementptr inbounds ([28 x i8]* @str, i64 0, i64 0), i64 28, i32 1)
%tmp3 = add i32 %tmp2, 1
%tmp4 = icmp eq i32 %tmp3, %count
br i1 %tmp4, label %bb2, label %bb1
bb2:
ret void
}
declare void @llvm.memcpy.i64(i8* nocapture, i8* nocapture, i64, i32) nounwind