File: wcslen-2.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; Test that the wcslen library call simplifier works correctly.
;
; RUN: opt < %s -passes=instcombine -S | FileCheck %s

target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"

!0 = !{i32 1, !"wchar_size", i32 4}
!llvm.module.flags = !{!0}

@hello = constant [6 x i32] [i32 104, i32 101, i32 108, i32 108, i32 111, i32 0]

declare i64 @wcslen(ptr, i32)

define i64 @test_no_simplify1() {
; CHECK-LABEL: @test_no_simplify1(
  %hello_l = call i64 @wcslen(ptr @hello, i32 187)
; CHECK-NEXT: %hello_l = call i64 @wcslen
  ret i64 %hello_l
; CHECK-NEXT: ret i64 %hello_l
}