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 3 4target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" 5target triple = "arm64-apple-ios8.0.0" 6 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. 11 12define i32 @test(ptr %ptr) { 13; CHECK-LABEL: test: 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] 27; CHECK-NEXT: ret 28bb: 29 br label %.thread 30 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 38 39bb343: ; preds = %.thread 40 store i32 %tmp341, ptr %ptr, align 4 41 ret i32 -1 42} 43