1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
; This testcase can be simplified by "realizing" that alloca can never return
; null.
; RUN: opt < %s -instcombine -simplifycfg -S | not grep br
declare i32 @bitmap_clear(...)
define i32 @oof() {
entry:
%live_head = alloca i32 ; <i32*> [#uses=2]
%tmp.1 = icmp ne i32* %live_head, null ; <i1> [#uses=1]
br i1 %tmp.1, label %then, label %UnifiedExitNode
then: ; preds = %entry
%tmp.4 = call i32 (...)* @bitmap_clear( i32* %live_head ) ; <i32> [#uses=0]
br label %UnifiedExitNode
UnifiedExitNode: ; preds = %then, %entry
ret i32 0
}
|
