17 lines
487 B
LLVM
17 lines
487 B
LLVM
; Promoting some values allows promotion of other values.
|
|
; RUN: opt < %s -passes=mem2reg -S | not grep alloca
|
|
|
|
define i32 @test2() {
|
|
%result = alloca i32 ; <ptr> [#uses=2]
|
|
%a = alloca i32 ; <ptr> [#uses=2]
|
|
%p = alloca ptr ; <ptr> [#uses=2]
|
|
store i32 0, ptr %a
|
|
store ptr %a, ptr %p
|
|
%tmp.0 = load ptr, ptr %p ; <ptr> [#uses=1]
|
|
%tmp.1 = load i32, ptr %tmp.0 ; <i32> [#uses=1]
|
|
store i32 %tmp.1, ptr %result
|
|
%tmp.2 = load i32, ptr %result ; <i32> [#uses=1]
|
|
ret i32 %tmp.2
|
|
}
|
|
|