20 lines
526 B
LLVM
20 lines
526 B
LLVM
; This bug has to do with the fact that constant propagation was implemented in
|
|
; terms of _logical_ not (! in C) instead of _bitwise_ not (~ in C). This was
|
|
; due to a spec change.
|
|
|
|
; Fix #2: The unary not instruction now no longer exists. Change to xor.
|
|
|
|
; RUN: opt < %s -instsimplify -S | \
|
|
; RUN: not grep "i32 0"
|
|
|
|
define i32 @test1() {
|
|
%R = xor i32 123, -1 ; <i32> [#uses=1]
|
|
ret i32 %R
|
|
}
|
|
|
|
define i32 @test2() {
|
|
%R = xor i32 -123, -1 ; <i32> [#uses=1]
|
|
ret i32 %R
|
|
}
|
|
|