diff --git a/llvm/test/CodeGen/Thumb2/LowOverheadLoops/iv-vcmp.mir b/llvm/test/CodeGen/Thumb2/LowOverheadLoops/iv-vcmp.mir new file mode 100644 index 0000000000000..f51ccfc0c32c2 --- /dev/null +++ b/llvm/test/CodeGen/Thumb2/LowOverheadLoops/iv-vcmp.mir @@ -0,0 +1,166 @@ +# 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 -verify-machineinstrs -o - | FileCheck %s +--- | + + ; Function Attrs: nofree norecurse nounwind + define dso_local arm_aapcs_vfpcc void @test(i32* noalias nocapture %a, i32* nocapture readonly %b, i32 %N) local_unnamed_addr #0 { + entry: + %cmp9 = icmp eq i32 %N, 0 + %0 = add i32 %N, 3 + %1 = lshr i32 %0, 2 + %2 = shl nuw i32 %1, 2 + %3 = add i32 %2, -4 + %4 = lshr i32 %3, 2 + %5 = add nuw nsw i32 %4, 1 + br i1 %cmp9, label %for.cond.cleanup, label %vector.ph + + vector.ph: ; preds = %entry + %div = lshr i32 %N, 1 + %trip.count.minus.1 = add i32 %N, -1 + %broadcast.splatinsert = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0 + %broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer + call void @llvm.set.loop.iterations.i32(i32 %5) + br label %vector.body + + vector.body: ; preds = %vector.body, %vector.ph + %lsr.iv3 = phi i32* [ %scevgep4, %vector.body ], [ %b, %vector.ph ] + %lsr.iv1 = phi i32* [ %scevgep, %vector.body ], [ %a, %vector.ph ] + %vec.ind = phi <4 x i32> [ , %vector.ph ], [ %vec.ind.next, %vector.body ] + %elts.rem = phi i32 [ %N, %vector.ph ], [ %elts.rem.next, %vector.body ] + %6 = phi i32 [ %5, %vector.ph ], [ %12, %vector.body ] + %lsr.iv35 = bitcast i32* %lsr.iv3 to <4 x i32>* + %lsr.iv12 = bitcast i32* %lsr.iv1 to <4 x i32>* + %7 = insertelement <4 x i32> undef, i32 %div, i32 0 + %8 = shufflevector <4 x i32> %7, <4 x i32> undef, <4 x i32> zeroinitializer + %9 = icmp ult <4 x i32> %vec.ind, %8 + %10 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %elts.rem) + %11 = and <4 x i1> %9, %10 + %wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %lsr.iv35, i32 4, <4 x i1> %11, <4 x i32> undef) + call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %wide.masked.load, <4 x i32>* %lsr.iv12, i32 4, <4 x i1> %11) + %vec.ind.next = add <4 x i32> %vec.ind, + %elts.rem.next = sub i32 %elts.rem, 4 + %scevgep = getelementptr i32, i32* %lsr.iv1, i32 4 + %scevgep4 = getelementptr i32, i32* %lsr.iv3, i32 4 + %12 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %6, i32 1) + %13 = icmp ne i32 %12, 0 + br i1 %13, label %vector.body, label %for.cond.cleanup + + for.cond.cleanup: ; preds = %vector.body, %entry + ret void + } + + declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>) + declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>) + declare <4 x i1> @llvm.arm.mve.vctp32(i32) + declare void @llvm.set.loop.iterations.i32(i32) + declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32) + +... +--- +name: test +alignment: 16 +tracksRegLiveness: true +registers: [] +liveins: + - { reg: '$r0', virtual-reg: '' } + - { reg: '$r1', virtual-reg: '' } + - { reg: '$r2', virtual-reg: '' } +frameInfo: + stackSize: 8 + offsetAdjustment: 0 + maxAlignment: 4 +fixedStack: [] +stack: + - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4, + stack-id: default, callee-saved-register: '$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: + - id: 0 + value: '<4 x i32> ' + alignment: 16 + isTargetSpecific: false +machineFunctionInfo: {} +body: | + ; CHECK-LABEL: name: test + ; CHECK: bb.0.entry: + ; CHECK: successors: %bb.1(0x80000000) + ; CHECK: liveins: $lr, $r0, $r1, $r2 + ; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $lr, implicit-def $sp, implicit $sp + ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 8 + ; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4 + ; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -8 + ; CHECK: dead $r7 = frame-setup tMOVr $sp, 14 /* CC::al */, $noreg + ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_register $r7 + ; CHECK: tCMPi8 renamable $r2, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr + ; CHECK: t2IT 0, 8, implicit-def $itstate + ; CHECK: frame-destroy tPOP_RET 0 /* CC::eq */, killed $cpsr, def $r7, def $pc, implicit killed $itstate + ; CHECK: renamable $q2 = MVE_VMOVimmi32 4, 0, $noreg, undef renamable $q2 + ; CHECK: renamable $r3 = tLEApcrel %const.0, 14 /* CC::al */, $noreg + ; CHECK: renamable $q0 = MVE_VLDRWU32 killed renamable $r3, 0, 0, $noreg :: (load 16 from constant-pool) + ; CHECK: renamable $r3, dead $cpsr = tLSRri renamable $r2, 1, 14 /* CC::al */, $noreg + ; CHECK: renamable $q1 = MVE_VDUP32 killed renamable $r3, 0, $noreg, undef renamable $q1 + ; CHECK: $lr = MVE_DLSTP_32 killed renamable $r2 + ; CHECK: bb.1.vector.body: + ; CHECK: successors: %bb.1(0x7c000000), %bb.2(0x04000000) + ; CHECK: liveins: $lr, $q0, $q1, $q2, $r0, $r1 + ; CHECK: renamable $vpr = MVE_VCMPu32 renamable $q1, renamable $q0, 8, 0, killed $noreg + ; CHECK: MVE_VPST 4, implicit $vpr + ; CHECK: renamable $r1, renamable $q3 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.lsr.iv35, align 4) + ; CHECK: renamable $r0 = MVE_VSTRWU32_post killed renamable $q3, killed renamable $r0, 16, 1, killed renamable $vpr :: (store 16 into %ir.lsr.iv12, align 4) + ; CHECK: renamable $q0 = MVE_VADDi32 killed renamable $q0, renamable $q2, 0, $noreg, undef renamable $q0 + ; CHECK: $lr = MVE_LETP killed renamable $lr, %bb.1 + ; CHECK: bb.2.for.cond.cleanup: + ; CHECK: frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc + ; CHECK: bb.3 (align 16): + ; CHECK: CONSTPOOL_ENTRY 0, %const.0, 16 + bb.0.entry: + successors: %bb.1(0x80000000) + liveins: $r0, $r1, $r2, $lr + + frame-setup tPUSH 14 /* CC::al */, $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 /* CC::al */, $noreg + frame-setup CFI_INSTRUCTION def_cfa_register $r7 + tCMPi8 renamable $r2, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr + t2IT 0, 8, implicit-def $itstate + frame-destroy tPOP_RET 0 /* CC::eq */, killed $cpsr, def $r7, def $pc, implicit killed $itstate + renamable $r3, dead $cpsr = tADDi3 renamable $r2, 3, 14 /* CC::al */, $noreg + renamable $q2 = MVE_VMOVimmi32 4, 0, $noreg, undef renamable $q2 + renamable $r3 = t2BICri killed renamable $r3, 3, 14 /* CC::al */, $noreg, $noreg + renamable $r12 = t2SUBri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg + renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg + renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $r12, 19, 14 /* CC::al */, $noreg, $noreg + renamable $r3 = tLEApcrel %const.0, 14 /* CC::al */, $noreg + renamable $q0 = MVE_VLDRWU32 killed renamable $r3, 0, 0, $noreg :: (load 16 from constant-pool) + renamable $r3, dead $cpsr = tLSRri renamable $r2, 1, 14 /* CC::al */, $noreg + renamable $q1 = MVE_VDUP32 killed renamable $r3, 0, $noreg, undef renamable $q1 + t2DoLoopStart renamable $lr + + bb.1.vector.body: + successors: %bb.1(0x7c000000), %bb.2(0x04000000) + liveins: $lr, $q0, $q1, $q2, $r0, $r1, $r2 + + renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg + renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14 /* CC::al */, $noreg + MVE_VPST 2, implicit $vpr + renamable $vpr = MVE_VCMPu32 renamable $q1, renamable $q0, 8, 1, killed renamable $vpr + renamable $r1, renamable $q3 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.lsr.iv35, align 4) + renamable $r0 = MVE_VSTRWU32_post killed renamable $q3, killed renamable $r0, 16, 1, killed renamable $vpr :: (store 16 into %ir.lsr.iv12, align 4) + renamable $q0 = MVE_VADDi32 killed renamable $q0, renamable $q2, 0, $noreg, undef renamable $q0 + renamable $lr = t2LoopDec killed renamable $lr, 1 + t2LoopEnd renamable $lr, %bb.1, implicit-def dead $cpsr + tB %bb.2, 14 /* CC::al */, $noreg + + bb.2.for.cond.cleanup: + frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc + + bb.3 (align 16): + CONSTPOOL_ENTRY 0, %const.0, 16 + +...