18 lines · plain
1; Test that the strstr library call simplifier works correctly.2;3; RUN: opt < %s -passes=instcombine -S | FileCheck %s4 5target 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 = private constant [1 x i8] zeroinitializer8 9declare i8 @strstr(ptr, ptr)10 11define i8 @test_no_simplify1(ptr %str) {12; CHECK-LABEL: @test_no_simplify1(13 %ret = call i8 @strstr(ptr %str, ptr @null)14; CHECK-NEXT: call i8 @strstr15 ret i8 %ret16; CHECK-NEXT: ret i8 %ret17}18