File: memcmp-03.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; Test memcmp with 0 size.

; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; REQUIRES: asserts

declare i32 @memcmp(ptr nocapture, ptr nocapture, i64)

define hidden void @fun() {
; CHECK-LABEL: fun
entry:
  %len = extractvalue [2 x i64] zeroinitializer, 1
  br i1 undef, label %end, label %call

call:
  %res = tail call signext i32 @memcmp(ptr noundef undef, ptr noundef undef, i64 noundef %len)
  unreachable

end:
  unreachable
}