File: pr61674.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 UTC_ARGS: --version 2
; RUN: opt -S -passes=globalopt < %s | FileCheck %s

; Test handling of dead constant expressions in CleanupPointerRootUsers().

@g = internal global [2 x [1 x [6 x ptr]]] zeroinitializer

define void @test() {
; CHECK-LABEL: define void @test() local_unnamed_addr {
; CHECK-NEXT:    ret void
;
  store ptr null, ptr getelementptr inbounds ([2 x [1 x [6 x ptr]]], ptr @g, i32 0, i32 1), align 1
  ret void

dead:
  zext i1 icmp ne (ptr getelementptr inbounds ([2 x [1 x [6 x ptr]]], ptr @g, i32 0, i32 1), ptr getelementptr inbounds ([6 x ptr], ptr getelementptr inbounds ([2 x [1 x [6 x ptr]]], ptr @g, i32 0, i32 1), i32 0, i32 5)) to i16
  ret void
}

; uselistorder directives
uselistorder ptr getelementptr inbounds ([2 x [1 x [6 x ptr]]], ptr @g, i32 0, i32 1), { 1, 2, 0 }