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      1 ; RUN: opt -S -instcombine < %s | FileCheck %s
      2 ; PR2297
      3 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
      4 target triple = "i386-apple-darwin8"
      5 
      6 define i32 @a() nounwind  {
      7 entry:
      8 	%"alloca point" = bitcast i32 0 to i32		; <i32> [#uses=0]
      9 	%tmp1 = call i8* @malloc( i32 10 ) nounwind 		; <i8*> [#uses=5]
     10 	%tmp3 = getelementptr i8, i8* %tmp1, i32 1		; <i8*> [#uses=1]
     11 	store i8 0, i8* %tmp3, align 1
     12 	%tmp5 = getelementptr i8, i8* %tmp1, i32 0		; <i8*> [#uses=1]
     13 	store i8 1, i8* %tmp5, align 1
     14 ; CHECK: store
     15 ; CHECK: store
     16 ; CHECK-NEXT: strlen
     17 ; CHECK-NEXT: store
     18 	%tmp7 = call i32 @strlen( i8* %tmp1 ) nounwind readonly 		; <i32> [#uses=1]
     19 	%tmp9 = getelementptr i8, i8* %tmp1, i32 0		; <i8*> [#uses=1]
     20 	store i8 0, i8* %tmp9, align 1
     21 	%tmp11 = call i32 (...) @b( i8* %tmp1 ) nounwind 		; <i32> [#uses=0]
     22 	br label %return
     23 
     24 return:		; preds = %entry
     25 	ret i32 %tmp7
     26 }
     27 
     28 declare i8* @malloc(i32) nounwind 
     29 
     30 declare i32 @strlen(i8*) nounwind readonly 
     31 
     32 declare i32 @b(...)
     33