blob: bf862f69e94bcef48ee68daeac8d945bd6d29e7a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
; This testcase exposed a problem with the loop identification pass (LoopInfo).
; Basically, it was incorrectly calculating the loop nesting information.
;
; RUN: opt < %s -loopsimplify
define i32 @yylex() {
br label %loopentry.0
loopentry.0: ; preds = %else.4, %0
br label %loopexit.2
loopexit.2: ; preds = %else.4, %loopexit.2, %loopentry.0
br i1 false, label %loopexit.2, label %else.4
yy_find_action: ; preds = %else.4
br label %else.4
else.4: ; preds = %yy_find_action, %loopexit.2
switch i32 0, label %loopexit.2 [
i32 2, label %yy_find_action
i32 0, label %loopentry.0
]
}
|
