blob: 750947dc26186fd3ab321eaf903a2f978ad1dd03 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve -verify-machineinstrs %s -o - | FileCheck %s
; This test has an instruction that gets sunk into the loop, that is a
; active.lane.mask operand. (%exitcount.ptrcnt.to.int = ptrtoint). We
; need to make sure it is loop invariant.
define i32 @a(ptr readnone %b, ptr %c) {
; CHECK-LABEL: a:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r4, lr}
; CHECK-NEXT: push {r4, lr}
; CHECK-NEXT: cmp r0, r1
; CHECK-NEXT: it ls
; CHECK-NEXT: popls {r4, pc}
; CHECK-NEXT: .LBB0_1: @ %while.body.preheader
; CHECK-NEXT: subs r4, r0, r1
; CHECK-NEXT: movs r2, #0
; CHECK-NEXT: mov r3, r1
; CHECK-NEXT: dlstp.8 lr, r4
; CHECK-NEXT: .LBB0_2: @ %vector.body
; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT: adds r0, r1, r2
; CHECK-NEXT: vidup.u8 q0, r0, #1
; CHECK-NEXT: adds r2, #16
; CHECK-NEXT: vstrb.8 q0, [r3], #16
; CHECK-NEXT: letp lr, .LBB0_2
; CHECK-NEXT: @ %bb.3: @ %while.end
; CHECK-NEXT: pop {r4, pc}
entry:
%cmp3 = icmp ugt ptr %b, %c
br i1 %cmp3, label %while.body.preheader, label %while.end
while.body.preheader: ; preds = %entry
%c5 = ptrtoint ptr %c to i32
%0 = sub i32 0, %c5
%uglygep = getelementptr i8, ptr %b, i32 %0
%exitcount.ptrcnt.to.int = ptrtoint ptr %uglygep to i32
%n.rnd.up = add i32 %exitcount.ptrcnt.to.int, 15
%n.vec = and i32 %n.rnd.up, -16
br label %vector.body
vector.body: ; preds = %vector.body, %while.body.preheader
%index = phi i32 [ 0, %while.body.preheader ], [ %index.next, %vector.body ]
%next.gep = getelementptr i8, ptr %c, i32 %index
%1 = or i32 %index, 1
%next.gep7 = getelementptr i8, ptr %c, i32 %1
%2 = or i32 %index, 2
%next.gep8 = getelementptr i8, ptr %c, i32 %2
%3 = or i32 %index, 3
%next.gep9 = getelementptr i8, ptr %c, i32 %3
%4 = or i32 %index, 4
%next.gep10 = getelementptr i8, ptr %c, i32 %4
%5 = or i32 %index, 5
%next.gep11 = getelementptr i8, ptr %c, i32 %5
%6 = or i32 %index, 6
%next.gep12 = getelementptr i8, ptr %c, i32 %6
%7 = or i32 %index, 7
%next.gep13 = getelementptr i8, ptr %c, i32 %7
%8 = or i32 %index, 8
%next.gep14 = getelementptr i8, ptr %c, i32 %8
%9 = or i32 %index, 9
%next.gep15 = getelementptr i8, ptr %c, i32 %9
%10 = or i32 %index, 10
%next.gep16 = getelementptr i8, ptr %c, i32 %10
%11 = or i32 %index, 11
%next.gep17 = getelementptr i8, ptr %c, i32 %11
%12 = or i32 %index, 12
%next.gep18 = getelementptr i8, ptr %c, i32 %12
%13 = or i32 %index, 13
%next.gep19 = getelementptr i8, ptr %c, i32 %13
%14 = or i32 %index, 14
%next.gep20 = getelementptr i8, ptr %c, i32 %14
%15 = or i32 %index, 15
%next.gep21 = getelementptr i8, ptr %c, i32 %15
%16 = insertelement <16 x ptr> poison, ptr %next.gep, i32 0
%17 = insertelement <16 x ptr> %16, ptr %next.gep7, i32 1
%18 = insertelement <16 x ptr> %17, ptr %next.gep8, i32 2
%19 = insertelement <16 x ptr> %18, ptr %next.gep9, i32 3
%20 = insertelement <16 x ptr> %19, ptr %next.gep10, i32 4
%21 = insertelement <16 x ptr> %20, ptr %next.gep11, i32 5
%22 = insertelement <16 x ptr> %21, ptr %next.gep12, i32 6
%23 = insertelement <16 x ptr> %22, ptr %next.gep13, i32 7
%24 = insertelement <16 x ptr> %23, ptr %next.gep14, i32 8
%25 = insertelement <16 x ptr> %24, ptr %next.gep15, i32 9
%26 = insertelement <16 x ptr> %25, ptr %next.gep16, i32 10
%27 = insertelement <16 x ptr> %26, ptr %next.gep17, i32 11
%28 = insertelement <16 x ptr> %27, ptr %next.gep18, i32 12
%29 = insertelement <16 x ptr> %28, ptr %next.gep19, i32 13
%30 = insertelement <16 x ptr> %29, ptr %next.gep20, i32 14
%31 = insertelement <16 x ptr> %30, ptr %next.gep21, i32 15
%active.lane.mask = call <16 x i1> @llvm.get.active.lane.mask.v16i1.i32(i32 %index, i32 %exitcount.ptrcnt.to.int)
%32 = ptrtoint <16 x ptr> %31 to <16 x i32>
%33 = trunc <16 x i32> %32 to <16 x i8>
call void @llvm.masked.store.v16i8.p0(<16 x i8> %33, ptr %next.gep, i32 1, <16 x i1> %active.lane.mask)
%index.next = add i32 %index, 16
%34 = icmp eq i32 %index.next, %n.vec
br i1 %34, label %while.end, label %vector.body
while.end: ; preds = %vector.body, %entry
ret i32 undef
}
declare <16 x i1> @llvm.get.active.lane.mask.v16i1.i32(i32, i32)
declare void @llvm.masked.store.v16i8.p0(<16 x i8>, ptr, i32 immarg, <16 x i1>)