Home | History | Annotate | Download | only in InstCombine
      1 ; Test that the strpbrk library call simplifier works correctly.
      2 ;
      3 ; RUN: opt < %s -instcombine -S | FileCheck %s
      4 
      5 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"
      6 
      7 @hello = constant [12 x i8] c"hello world\00"
      8 @w = constant [2 x i8] c"w\00"
      9 
     10 declare i16* @strpbrk(i8*, i8*)
     11 
     12 ; Check that 'strpbrk' functions with the wrong prototype aren't simplified.
     13 
     14 define i16* @test_no_simplify1() {
     15 ; CHECK-LABEL: @test_no_simplify1(
     16   %str = getelementptr [12 x i8], [12 x i8]* @hello, i32 0, i32 0
     17   %pat = getelementptr [2 x i8], [2 x i8]* @w, i32 0, i32 0
     18 
     19   %ret = call i16* @strpbrk(i8* %str, i8* %pat)
     20 ; CHECK-NEXT: %ret = call i16* @strpbrk
     21   ret i16* %ret
     22 ; CHECK-NEXT: ret i16* %ret
     23 }
     24