File: dead-allocation.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; Eliminate the dead allocation instruction
; REQUIRES: arm-registered-target
; RUN: opt -codegenprepare < %s -S | FileCheck %s

target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "armv7--linux-gnueabihf"

@.str = private unnamed_addr constant [2 x i8] c"a\00", align 1

define void @func() {
; CHECK-LABEL: @func(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    ret void
;
entry:
  %0 = tail call noalias noundef nonnull dereferenceable(32) ptr @_Znwm(i64 noundef 32)
  %1 = icmp ugt ptr %0, @.str
  tail call void @llvm.assume(i1 %1)
  ret void
}

declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr
declare void @llvm.assume(i1 noundef)