1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc %s -o - -fast-isel=true -O1 -verify-machineinstrs | FileCheck %s
4 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
5 target triple = "arm64-apple-ios8.0.0"
7 ; The machine verifier was asserting on this test because the AND instruction was
8 ; sunk below the test which killed %tmp340.
9 ; The kill flags on the test had to be cleared because the AND was going to read
10 ; registers in a BB after the test instruction.
12 define i32 @test(ptr %ptr) {
14 ; CHECK: ; %bb.0: ; %bb
15 ; CHECK-NEXT: mov x8, x0
16 ; CHECK-NEXT: mov w9, wzr
17 ; CHECK-NEXT: LBB0_1: ; %.thread
18 ; CHECK-NEXT: ; =>This Inner Loop Header: Depth=1
19 ; CHECK-NEXT: lsr w11, w9, #1
20 ; CHECK-NEXT: sub w10, w9, #1
21 ; CHECK-NEXT: mov w9, w11
22 ; CHECK-NEXT: tbnz w10, #0, LBB0_1
23 ; CHECK-NEXT: ; %bb.2: ; %bb343
24 ; CHECK-NEXT: and w9, w10, #0x1
25 ; CHECK-NEXT: mov w0, #-1
26 ; CHECK-NEXT: str w9, [x8]
31 .thread: ; preds = %.thread, %bb
32 %loc = phi i32 [ %next_iter, %.thread ], [ 0, %bb ]
33 %next_iter = lshr i32 %loc, 1
34 %tmp340 = sub i32 %loc, 1
35 %tmp341 = and i32 %tmp340, 1
36 %tmp342 = icmp eq i32 %tmp341, 0
37 br i1 %tmp342, label %bb343, label %.thread
39 bb343: ; preds = %.thread
40 store i32 %tmp341, ptr %ptr, align 4