mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-02 00:42:52 +01:00
34 lines
1011 B
LLVM
34 lines
1011 B
LLVM
; RUN: llvm-as < %s | opt -sretpromotion | llvm-dis > %t
|
|
; RUN: cat %t | grep sret | count 1
|
|
|
|
; This function is promotable
|
|
define internal void @promotable({i32, i32}* sret %s) {
|
|
%A = getelementptr {i32, i32}* %s, i32 0, i32 0
|
|
store i32 0, i32* %A
|
|
%B = getelementptr {i32, i32}* %s, i32 0, i32 0
|
|
store i32 1, i32* %B
|
|
ret void
|
|
}
|
|
|
|
; This function is not promotable (due to it's use below)
|
|
define internal void @notpromotable({i32, i32}* sret %s) {
|
|
%A = getelementptr {i32, i32}* %s, i32 0, i32 0
|
|
store i32 0, i32* %A
|
|
%B = getelementptr {i32, i32}* %s, i32 0, i32 0
|
|
store i32 1, i32* %B
|
|
ret void
|
|
}
|
|
|
|
define void @caller({i32, i32}* %t) {
|
|
%s = alloca {i32, i32}
|
|
call void @promotable({i32, i32}* %s)
|
|
%A = getelementptr {i32, i32}* %s, i32 0, i32 0
|
|
%a = load i32* %A
|
|
%B = getelementptr {i32, i32}* %s, i32 0, i32 0
|
|
%b = load i32* %B
|
|
; This passes in something that's not an alloca, which makes the argument not
|
|
; promotable
|
|
call void @notpromotable({i32, i32}* %t)
|
|
ret void
|
|
}
|