blob: be8797176e60188bde1b9cc78d7b33739249ce4a (
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
25
26
27
28
29
30
31
32
|
; RUN: llc -mtriple=aarch64 -verify-machineinstrs < %s | FileCheck %s
declare void @foo()
; Check that the inverted or doesn't inhibit the splitting of the
; complex conditional into three branch instructions.
; CHECK-LABEL: test_and_not
; CHECK: cbz w0, [[L:\.LBB[0-9_]+]]
; CHECK: cmp w1, #2
; CHECK: b.lo [[L]]
; CHECK: cmp w2, #2
; CHECK: b.hi [[L]]
define void @test_and_not(i32 %a, i32 %b, i32 %c) {
bb1:
%cmp1 = icmp ult i32 %a, 1
%cmp2 = icmp ult i32 %b, 2
%cmp3 = icmp ult i32 %c, 3
%or = or i1 %cmp1, %cmp2
%not.or = xor i1 %or, -1
%and = and i1 %not.or, %cmp3
br i1 %and, label %bb2, label %bb3
bb2:
ret void
bb3:
call void @foo()
ret void
}
|