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      1 ; RUN: llc < %s -combiner-alias-analysis -march=x86-64 -mcpu=core2 | FileCheck %s
      2 
      3 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"
      4 target triple = "x86_64-apple-darwin10.4"
      5 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
      6 
      7 define fastcc i32 @cli_magic_scandesc(i8* %in) nounwind ssp {
      8 entry:
      9   %a = alloca [64 x i8]
     10   %b = getelementptr inbounds [64 x i8]* %a, i64 0, i32 0
     11   %c = getelementptr inbounds [64 x i8]* %a, i64 0, i32 30
     12   %d = load i8* %b, align 8
     13   %e = load i8* %c, align 8
     14   %f = bitcast [64 x i8]* %a to i8*
     15   call void @llvm.memcpy.p0i8.p0i8.i64(i8* %f, i8* %in, i64 64, i32 8, i1 false) nounwind
     16   store i8 %d, i8* %b, align 8
     17   store i8 %e, i8* %c, align 8
     18   ret i32 0
     19 }
     20 
     21 ; CHECK: movq	___stack_chk_guard@GOTPCREL(%rip)
     22 ; CHECK: movb   38(%rsp), [[R0:%.+]]
     23 ; CHECK: movb   8(%rsp), [[R1:%.+]]
     24 ; CHECK: movb   [[R1]], 8(%rsp)
     25 ; CHECK: movb   [[R0]], 38(%rsp)
     26 ; CHECK: callq	___stack_chk_fail
     27