1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; Test that the strlen library call simplifier works correctly.
4 ; RUN: opt < %s -instcombine -S | FileCheck %s
6 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"
8 @hello = constant [6 x i8] c"hello\00"
10 declare i32 @strlen(i8*, i32)
12 define i32 @test_no_simplify1() {
13 ; CHECK-LABEL: @test_no_simplify1(
14 ; CHECK-NEXT: [[HELLO_L:%.*]] = call i32 @strlen(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @hello, i32 0, i32 0), i32 187)
15 ; CHECK-NEXT: ret i32 [[HELLO_L]]
17 %hello_p = getelementptr [6 x i8], [6 x i8]* @hello, i32 0, i32 0
18 %hello_l = call i32 @strlen(i8* %hello_p, i32 187)