# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - --verify-machineinstrs | FileCheck %s
--- |
define dso_local arm_aapcs_vfpcc void @multi_cond_iter_count(ptr noalias nocapture %0, ptr nocapture readonly %1, i32 %2, i32 %3) {
%5 = icmp eq i32 %3, 2
%6 = select i1 %5, i32 2, i32 4
%7 = icmp eq i32 %3, 4
%8 = select i1 %7, i32 1, i32 %6
%9 = shl i32 %2, %8
%10 = icmp eq i32 %9, 0
%11 = add i32 %9, 3
%12 = lshr i32 %11, 2
%13 = shl nuw i32 %12, 2
%14 = add i32 %13, -4
%15 = lshr i32 %14, 2
%16 = add nuw nsw i32 %15, 1
br i1 %10, label %34, label %17
17: ; preds = %4
%start = call i32 @llvm.start.loop.iterations.i32(i32 %16)
br label %18
18: ; preds = %18, %17
%19 = phi ptr [ %31, %18 ], [ %0, %17 ]
%20 = phi ptr [ %30, %18 ], [ %1, %17 ]
%21 = phi i32 [ %start, %17 ], [ %32, %18 ]
%22 = phi i32 [ %9, %17 ], [ %26, %18 ]
%23 = bitcast ptr %19 to ptr
%24 = bitcast ptr %20 to ptr
%25 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %22)
%26 = sub i32 %22, 4
%27 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %24, i32 4, <4 x i1> %25, <4 x i32> undef)
%28 = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %23, i32 4, <4 x i1> %25, <4 x i32> undef)
%29 = mul nsw <4 x i32> %28, %27
call void @llvm.masked.store.v4i32.p0(<4 x i32> %29, ptr %23, i32 4, <4 x i1> %25)
%30 = getelementptr i32, ptr %20, i32 4
%31 = getelementptr i32, ptr %19, i32 4
%32 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %21, i32 1)
%33 = icmp ne i32 %32, 0
br i1 %33, label %18, label %34
34: ; preds = %18, %4
ret void
}
declare <4 x i32> @llvm.masked.load.v4i32.p0(ptr, i32 immarg, <4 x i1>, <4 x i32>)
declare void @llvm.masked.store.v4i32.p0(<4 x i32>, ptr, i32 immarg, <4 x i1>)
declare i32 @llvm.start.loop.iterations.i32(i32)
declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)
declare <4 x i1> @llvm.arm.mve.vctp32(i32)
...
---
name: multi_cond_iter_count
alignment: 2
tracksRegLiveness: true
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
- { reg: '$r1', virtual-reg: '' }
- { reg: '$r2', virtual-reg: '' }
- { reg: '$r3', virtual-reg: '' }
frameInfo:
stackSize: 8
offsetAdjustment: 0
maxAlignment: 4
fixedStack: []
stack:
- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: multi_cond_iter_count
; CHECK: bb.0 (%ir-block.4):
; CHECK-NEXT: successors: %bb.1(0x80000000)
; CHECK-NEXT: liveins: $lr, $r0, $r1, $r2, $r3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $lr, implicit-def $sp, implicit $sp
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $r7, -8
; CHECK-NEXT: dead $r7 = frame-setup tMOVr $sp, 14 /* CC::al */, $noreg
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_register $r7
; CHECK-NEXT: tCMPi8 renamable $r3, 2, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK-NEXT: $r12 = tMOVr $r3, 14 /* CC::al */, $noreg
; CHECK-NEXT: t2IT 1, 8, implicit-def $itstate
; CHECK-NEXT: $r12 = t2MOVi 4, 1 /* CC::ne */, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
; CHECK-NEXT: tCMPi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK-NEXT: t2IT 0, 8, implicit-def $itstate
; CHECK-NEXT: $r12 = t2MOVi 1, 0 /* CC::eq */, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
; CHECK-NEXT: renamable $r2 = t2LSLrr killed renamable $r2, killed renamable $r12, 14 /* CC::al */, $noreg, def $cpsr
; CHECK-NEXT: t2IT 0, 8, implicit-def $itstate
; CHECK-NEXT: tPOP_RET 0 /* CC::eq */, killed $cpsr, def $r7, def $pc, implicit killed $itstate
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1 (%ir-block.17):
; CHECK-NEXT: successors: %bb.2(0x80000000)
; CHECK-NEXT: liveins: $r0, $r1, $r2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $r3 = tMOVr $r0, 14 /* CC::al */, $noreg
; CHECK-NEXT: $lr = MVE_DLSTP_32 killed renamable $r2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2 (%ir-block.18):
; CHECK-NEXT: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
; CHECK-NEXT: liveins: $lr, $r0, $r1, $r3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 0, $noreg, $noreg
; CHECK-NEXT: renamable $r3, renamable $q1 = MVE_VLDRWU32_post killed renamable $r3, 16, 0, $noreg, $noreg
; CHECK-NEXT: renamable $q0 = nsw MVE_VMULi32 killed renamable $q1, killed renamable $q0, 0, $noreg, $noreg, undef renamable $q0
; CHECK-NEXT: MVE_VSTRWU32 killed renamable $q0, killed renamable $r0, 0, 0, killed $noreg, $noreg
; CHECK-NEXT: $r0 = tMOVr $r3, 14 /* CC::al */, $noreg
; CHECK-NEXT: $lr = MVE_LETP killed renamable $lr, %bb.2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3 (%ir-block.34):
; CHECK-NEXT: tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
bb.0 (%ir-block.4):
successors: %bb.1(0x80000000)
liveins: $r0, $r1, $r2, $r3, $lr
frame-setup tPUSH 14, $noreg, killed $lr, implicit-def $sp, implicit $sp
frame-setup CFI_INSTRUCTION def_cfa_offset 8
frame-setup CFI_INSTRUCTION offset $lr, -4
frame-setup CFI_INSTRUCTION offset $r7, -8
$r7 = frame-setup tMOVr $sp, 14, $noreg
frame-setup CFI_INSTRUCTION def_cfa_register $r7
tCMPi8 renamable $r3, 2, 14, $noreg, implicit-def $cpsr
$r12 = tMOVr $r3, 14, $noreg
t2IT 1, 8, implicit-def $itstate
$r12 = t2MOVi 4, 1, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
tCMPi8 killed renamable $r3, 4, 14, $noreg, implicit-def $cpsr
t2IT 0, 8, implicit-def $itstate
$r12 = t2MOVi 1, 0, killed $cpsr, $noreg, implicit killed renamable $r12, implicit killed $itstate
renamable $r2 = t2LSLrr killed renamable $r2, killed renamable $r12, 14, $noreg, def $cpsr
t2IT 0, 8, implicit-def $itstate
tPOP_RET 0, killed $cpsr, def $r7, def $pc, implicit killed $itstate
bb.1 (%ir-block.17):
successors: %bb.2(0x80000000)
liveins: $r0, $r1, $r2, $r3, $lr
renamable $r3, dead $cpsr = tADDi3 renamable $r2, 3, 14, $noreg
renamable $r3 = t2BICri killed renamable $r3, 3, 14, $noreg, $noreg
renamable $r12 = t2SUBri killed renamable $r3, 4, 14, $noreg, $noreg
renamable $r3, dead $cpsr = tMOVi8 1, 14, $noreg
renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $r12, 19, 14, $noreg, $noreg
$r3 = tMOVr $r0, 14, $noreg
$lr = t2DoLoopStart renamable $lr
bb.2 (%ir-block.18):
successors: %bb.2(0x7c000000), %bb.3(0x04000000)
liveins: $lr, $r0, $r1, $r2, $r3
renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg, $noreg
MVE_VPST 4, implicit $vpr
renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr, $noreg
renamable $r3, renamable $q1 = MVE_VLDRWU32_post killed renamable $r3, 16, 1, renamable $vpr, $noreg
renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14, $noreg
renamable $q0 = nsw MVE_VMULi32 killed renamable $q1, killed renamable $q0, 0, $noreg, $noreg, undef renamable $q0
MVE_VPST 8, implicit $vpr
MVE_VSTRWU32 killed renamable $q0, killed renamable $r0, 0, 1, killed renamable $vpr, $noreg
renamable $lr = t2LoopDec killed renamable $lr, 1
$r0 = tMOVr $r3, 14, $noreg
t2LoopEnd renamable $lr, %bb.2, implicit-def dead $cpsr
tB %bb.3, 14, $noreg
bb.3 (%ir-block.34):
tPOP_RET 14, $noreg, def $r7, def $pc
...
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