| ; 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 |
| } |
