mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-19 19:29:31 +00:00
14d7f5dfdd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6689 91177308-0d34-0410-b5e6-96231b3b80d8
26 lines
438 B
LLVM
26 lines
438 B
LLVM
; This testcase ensures that redundant loads are preserved when they are not
|
|
; allowed to be eliminated.
|
|
; RUN: as < %s | opt -load-vn -gcse | dis | grep sub
|
|
;
|
|
int %test1(int* %P) {
|
|
%A = load int* %P
|
|
store int 1, int* %P
|
|
%B = load int* %P
|
|
%C = sub int %A, %B
|
|
ret int %C
|
|
}
|
|
|
|
int %test2(int* %P) {
|
|
%A = load int* %P
|
|
br label %BB2
|
|
BB2:
|
|
store int 5, int* %P
|
|
br label %BB3
|
|
BB3:
|
|
%B = load int* %P
|
|
%C = sub int %A, %B
|
|
ret int %C
|
|
}
|
|
|
|
|