mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 22:32:47 +00:00
ec9a35a6f9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47793 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
432 B
LLVM
15 lines
432 B
LLVM
; This testcase shows a bug where an common subexpression exists, but there
|
|
; is no shared dominator block that the expression can be hoisted out to.
|
|
;
|
|
; RUN: llvm-as < %s | opt -gcse | llvm-dis
|
|
|
|
define i32 @test(i32 %X, i32 %Y) {
|
|
%Z = add i32 %X, %Y ; <i32> [#uses=1]
|
|
ret i32 %Z
|
|
|
|
Unreachable: ; No predecessors!
|
|
%Q = add i32 %X, %Y ; <i32> [#uses=1]
|
|
ret i32 %Q
|
|
}
|
|
|