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
33
34
35
36
37
38
39
40
41
42
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc %s -o - -fast-isel=true -O1 -verify-machineinstrs | FileCheck %s
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios8.0.0"
; The machine verifier was asserting on this test because the AND instruction was
; sunk below the test which killed %tmp340.
; The kill flags on the test had to be cleared because the AND was going to read
; registers in a BB after the test instruction.
define i32 @test(ptr %ptr) {
; CHECK-LABEL: test:
; CHECK: ; %bb.0: ; %bb
; CHECK-NEXT: mov x8, x0
; CHECK-NEXT: mov w9, wzr
; CHECK-NEXT: LBB0_1: ; %.thread
; CHECK-NEXT: ; =>This Inner Loop Header: Depth=1
; CHECK-NEXT: lsr w11, w9, #1
; CHECK-NEXT: sub w10, w9, #1
; CHECK-NEXT: mov w9, w11
; CHECK-NEXT: tbnz w10, #0, LBB0_1
; CHECK-NEXT: ; %bb.2: ; %bb343
; CHECK-NEXT: and w9, w10, #0x1
; CHECK-NEXT: mov w0, #-1
; CHECK-NEXT: str w9, [x8]
; CHECK-NEXT: ret
bb:
br label %.thread
.thread: ; preds = %.thread, %bb
%loc = phi i32 [ %next_iter, %.thread ], [ 0, %bb ]
%next_iter = lshr i32 %loc, 1
%tmp340 = sub i32 %loc, 1
%tmp341 = and i32 %tmp340, 1
%tmp342 = icmp eq i32 %tmp341, 0
br i1 %tmp342, label %bb343, label %.thread
bb343: ; preds = %.thread
store i32 %tmp341, ptr %ptr, align 4
ret i32 -1
}
|
