blob: b96a4a6bb12a9d63ca6b631af1b778b68d2d042c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
|
; This test checks to make sure that 'br X, Dest, Dest' is folded into
; 'br Dest'. This can only happen after the 'Z' block is eliminated. This is
; due to the fact that the SimplifyCFG function does not use
; the ConstantFoldTerminator function.
; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | not grep 'br bool %c2'
declare void %noop()
int %test(bool %c1, bool %c2) {
call void %noop()
br bool %c1, label %A, label %Y
A:
call void %noop()
br bool %c2, label %Z, label %X ; Can be converted to unconditional br
Z:
br label %X
X:
call void %noop()
ret int 0
Y:
call void %noop()
br label %X
}
|