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      1 ; RUN: opt < %s -instcombine -S | not grep call
      2 ; RUN: opt < %s -std-compile-opts -S | not grep xyz
      3 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
      4 
      5 @.str = internal constant [4 x i8] c"xyz\00"		; <[4 x i8]*> [#uses=1]
      6 
      7 define void @foo(i8* %P) {
      8 entry:
      9   %P_addr = alloca i8*
     10   store i8* %P, i8** %P_addr
     11   %tmp = load i8** %P_addr, align 4
     12   %tmp1 = getelementptr [4 x i8]* @.str, i32 0, i32 0
     13   call void @llvm.memcpy.p0i8.p0i8.i32(i8* %tmp, i8* %tmp1, i32 4, i32 1, i1 false)
     14   br label %return
     15 
     16 return:                                           ; preds = %entry
     17   ret void
     18 }
     19 
     20 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
     21