test/Transforms/FunctionAttrs/2008-09-03-ReadNone.ll


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

; RUN: opt %s -functionattrs -S | grep readnone | count 4
@x = global i32 0

declare i32 @e() readnone

define i32 @f() {
	%tmp = call i32 @e( )		; <i32> [#uses=1]
	ret i32 %tmp
}

define i32 @g() readonly {
	ret i32 0
}

define i32 @h() readnone {
	%tmp = load i32* @x		; <i32> [#uses=1]
	ret i32 %tmp
}