| ; 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-LABEL: @test_no_simplify1( |
| %str = getelementptr [1 x i8], [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 |
| } |
