mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-07 12:07:17 +00:00
7f40dea2f1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48530 91177308-0d34-0410-b5e6-96231b3b80d8
13 lines
385 B
LLVM
13 lines
385 B
LLVM
; With sub reassociation, constant folding can eliminate all of the constants.
|
|
;
|
|
; RUN: llvm-as < %s | opt -reassociate -constprop -instcombine -dce | llvm-dis | not grep add
|
|
|
|
define i32 @test(i32 %A, i32 %B) {
|
|
%W = add i32 5, %B ; <i32> [#uses=1]
|
|
%X = add i32 -7, %A ; <i32> [#uses=1]
|
|
%Y = sub i32 %X, %W ; <i32> [#uses=1]
|
|
%Z = add i32 %Y, 12 ; <i32> [#uses=1]
|
|
ret i32 %Z
|
|
}
|
|
|