xref: /llvm-project/llvm/test/Transforms/GlobalOpt/dead-constant-user.ll (revision deab451e7a7f2dff42097049274637052c87eabd)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -passes='function(instsimplify),globalopt' < %s | FileCheck %s
3; RUN: opt -S -passes='function(instsimplify)' < %s | opt -S -passes=globalopt | FileCheck %s
4
5@g = internal global [6 x ptr] undef
6
7define void @test1() {
8; CHECK-LABEL: @test1(
9; CHECK-NEXT:    ret void
10;
11  %cmp = icmp ne ptr getelementptr (i8, ptr @g, i64 3), null
12  %add = add i1 %cmp, 1
13  %xor4 = xor i1 %add, 0
14  %t0 = load ptr, ptr getelementptr (i8, ptr @g, i64 3), align 1
15  %t1 = load i16, ptr %t0, align 1
16  ret void
17}
18
19define void @test2() {
20; CHECK-LABEL: @test2(
21; CHECK-NEXT:    ret void
22;
23  store ptr null, ptr getelementptr inbounds ([6 x ptr], ptr @g, i32 0, i32 5)
24  ret void
25}
26