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      1 ; RUN: llc -mtriple=x86_64-apple-darwin -mcpu=nehalem < %s | FileCheck %s
      2 
      3 @a = common global [3 x i64] zeroinitializer, align 16
      4 
      5 define i32 @main() nounwind ssp {
      6 ; CHECK: movups
      7 entry:
      8   %retval = alloca i32, align 4
      9   store i32 0, i32* %retval
     10   call void @llvm.memset.p0i8.i64(i8* bitcast (i64* getelementptr inbounds ([3 x i64], [3 x i64]* @a, i32 0, i64 1) to i8*), i8 0, i64 16, i32 1, i1 false)
     11   %0 = load i32, i32* %retval
     12   ret i32 %0
     13 }
     14 
     15 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
     16