mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-30 02:32:08 +00:00
dbcc2f7b0b
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20833 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
569 B
LLVM
27 lines
569 B
LLVM
; RUN: llvm-as < %s | opt -ds-aa -load-vn -gcse | llvm-dis | grep 'load int\* %L'
|
|
|
|
%G = internal global int* null
|
|
|
|
int %caller(bool %P) {
|
|
%L = alloca int
|
|
call void %callee(bool %P, int* %L)
|
|
|
|
;; At this point, G could point to L, so we can't eliminate these operations.
|
|
%GP = load int** %G
|
|
store int 17, int* %L
|
|
store int 18, int* %GP ;; might clober L
|
|
|
|
%A = load int* %L ;; is not necessarily 17!
|
|
ret int %A
|
|
}
|
|
|
|
internal void %callee(bool %Cond, int* %P) {
|
|
br bool %Cond, label %T, label %F
|
|
T:
|
|
store int* %P, int** %G
|
|
ret void
|
|
F:
|
|
ret void
|
|
}
|
|
|