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; Test that the strcspn library call simplifier works correctly.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
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-S128"
@null = constant [1 x i8] zeroinitializer
declare double @strcspn(i8*, i8*)
; Check that strcspn functions with the wrong prototype aren't simplified.
define double @test_no_simplify1(i8* %pat) {
; CHECK: @test_no_simplify1
%str = getelementptr [1 x i8]* @null, i32 0, i32 0
%ret = call double @strcspn(i8* %str, i8* %pat)
; CHECK-NEXT: call double @strcspn
ret double %ret
; CHECK-NEXT: ret double %ret
}
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