1 ; Test that the strcspn library call simplifier works correctly. 2 ; 3 ; RUN: opt < %s -instcombine -S | FileCheck %s 4 5 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" 6 7 @null = constant [1 x i8] zeroinitializer 8 9 declare double @strcspn(i8*, i8*) 10 11 ; Check that strcspn functions with the wrong prototype aren't simplified. 12 13 define double @test_no_simplify1(i8* %pat) { 14 ; CHECK-LABEL: @test_no_simplify1( 15 %str = getelementptr [1 x i8], [1 x i8]* @null, i32 0, i32 0 16 17 %ret = call double @strcspn(i8* %str, i8* %pat) 18 ; CHECK-NEXT: call double @strcspn 19 ret double %ret 20 ; CHECK-NEXT: ret double %ret 21 } 22