llvm-project/llvm/test/Transforms/GlobalOpt/dead-constant-user.ll
Nikita Popov deab451e7a
[IR] Remove support for icmp and fcmp constant expressions (#93038)
Remove support for the icmp and fcmp constant expressions.

This is part of:
https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179

As usual, many of the updated tests will no longer test what they were
originally intended to -- this is hard to preserve when constant
expressions get removed, and in many cases just impossible as the
existence of a specific kind of constant expression was the cause of the
issue in the first place.
2024-06-04 08:31:03 +02:00

26 lines
748 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes='function(instsimplify),globalopt' < %s | FileCheck %s
; RUN: opt -S -passes='function(instsimplify)' < %s | opt -S -passes=globalopt | FileCheck %s
@g = internal global [6 x ptr] undef
define void @test1() {
; CHECK-LABEL: @test1(
; CHECK-NEXT: ret void
;
%cmp = icmp ne ptr getelementptr (i8, ptr @g, i64 3), null
%add = add i1 %cmp, 1
%xor4 = xor i1 %add, 0
%t0 = load ptr, ptr getelementptr (i8, ptr @g, i64 3), align 1
%t1 = load i16, ptr %t0, align 1
ret void
}
define void @test2() {
; CHECK-LABEL: @test2(
; CHECK-NEXT: ret void
;
store ptr null, ptr getelementptr inbounds ([6 x ptr], ptr @g, i32 0, i32 5)
ret void
}