[llvm] r336728 - [X86] Remove X86ISD::MOVLPS and X86ISD::MOVLPD. NFCI

Mikael Holmén via llvm-commits llvm-commits at lists.llvm.org
Wed Jul 11 05:19:04 PDT 2018


Hi,

Indeed, with that patch "my" case doesn't hit the assertion anymore either.

Thanks,
Mikael

On 07/11/2018 02:03 PM, Andrea Di Biagio wrote:
> For the record.
> The instructions affected by the missing `mayLoad` flag are:
>    MOVLPSrm
>    VMOVLPSrm
>    VMOVLPSZ128rm
> 
> The diff below would fix the issue with the (V)MOVLPSrm.
> 
> Index: lib/Target/X86/X86InstrSSE.td
> ===================================================================
> --- lib/Target/X86/X86InstrSSE.td       (revision 336790)
> +++ lib/Target/X86/X86InstrSSE.td       (working copy)
> @@ -650,14 +650,17 @@
> 
>   multiclass sse12_mov_hilo_packed<bits<8>opc, SDPatternOperator psnode,
>                                    SDPatternOperator pdnode, string 
> base_opc> {
> -  let Predicates = [UseAVX] in
> +
> +  let mayLoad = 1 in {
> +    let Predicates = [UseAVX] in
>       defm V#NAME : sse12_mov_hilo_packed_base<opc, psnode, pdnode, 
> base_opc,
>                                       "\t{$src2, $src1, $dst|$dst, 
> $src1, $src2}">,
>                                       VEX_4V, VEX_WIG;
> 
> -  let Constraints = "$src1 = $dst" in
> +    let Constraints = "$src1 = $dst" in
>       defm NAME : sse12_mov_hilo_packed_base<opc, psnode, pdnode, base_opc,
>                                       "\t{$src2, $dst|$dst, $src2}">;
> +  }
>   }
> 
>   defm MOVL : sse12_mov_hilo_packed<0x12, null_frag, null_frag, "movlp">;
> 
> On Wed, Jul 11, 2018 at 12:34 PM, Andrea Di Biagio 
> <andrea.dibiagio at gmail.com <mailto:andrea.dibiagio at gmail.com>> wrote:
> 
>     I found a similar issue.
> 
> 
>     Before 336728, the "mayLoad" flag for the (V)MOVLPSrm was
>     automatically inferred (in utils/Tablegen/CodeGenDAGPatterns.cpp)
>     directly from the default pattern associated with the instruction
>     definition.
> 
>     With 336728, `X86Movlps` is gone. However, the instruction
>     definition in tablegen leaves the "mayLoad" flag unset for the
>     (V)MOVLPSrm.
>     Later on, CodeGenDAGPatterns::InferInstructionFlags() sees that
>     (V)MOVLPSrm has undefined flags and no pattern. So, it
>     conservatively sets the "hasSideEffects" flag to true.
> 
>     The assert is probably a consequence of all of this:
> 
>     there is no 'mayLoad' associated with (V)MOVLPSrm, however,
>     VMOVLPSrm is used as the variant to use with a folded memory operand.
> 
> 
>     On Wed, Jul 11, 2018 at 12:04 PM, Mikael Holmén via llvm-commits
>     <llvm-commits at lists.llvm.org <mailto:llvm-commits at lists.llvm.org>>
>     wrote:
> 
>         Hi Craig,
> 
>         The following (llvm-stress generated and bugpoint reduced) case
>         starts to crash the register allocator with this patch:
> 
>           llc -march=x86-64 -mcpu=corei7 -o /dev/null fold.ll
> 
>         gives
> 
>         llc: ../lib/CodeGen/TargetInstrInfo.cpp:594: llvm::MachineInstr
>         *llvm::TargetInstrInfo::foldMemoryOperand(llvm::MachineInstr &,
>         ArrayRef<unsigned int>, int, llvm::LiveIntervals *) const:
>         Assertion `(!(Flags & MachineMemOperand::MOLoad) ||
>         NewMI->mayLoad()) && "Folded a use to a non-load!"' failed.
>         Stack dump:
>         0.      Program arguments: build-all/bin/llc -march=x86-64
>         -mcpu=corei7 -o /dev/null fold.ll
>         1.      Running pass 'Function Pass Manager' on module 'fold.ll'.
>         2.      Running pass 'Greedy Register Allocator' on function
>         '@autogen_SD17302'
>         #0 0x0000000001ff28f4 PrintStackTraceSignalHandler(void*)
>         (build-all/bin/llc+0x1ff28f4)
>         #1 0x0000000001ff0b60 llvm::sys::RunSignalHandlers()
>         (build-all/bin/llc+0x1ff0b60)
>         #2 0x0000000001ff2c58 SignalHandler(int)
>         (build-all/bin/llc+0x1ff2c58)
>         #3 0x00007f7b62559330 __restore_rt
>         (/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
>         #4 0x00007f7b61148c37 gsignal
>         /build/eglibc-ripdx6/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
>         #5 0x00007f7b6114c028 abort
>         /build/eglibc-ripdx6/eglibc-2.19/stdlib/abort.c:91:0
>         #6 0x00007f7b61141bf6 __assert_fail_base
>         /build/eglibc-ripdx6/eglibc-2.19/assert/assert.c:92:0
>         #7 0x00007f7b61141ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
>         #8 0x000000000188be0d
>         llvm::TargetInstrInfo::foldMemoryOperand(llvm::MachineInstr&,
>         llvm::ArrayRef<unsigned int>, int, llvm::LiveIntervals*) const
>         (build-all/bin/llc+0x188be0d)
>         #9 0x00000000018e6607 (anonymous
>         namespace)::InlineSpiller::foldMemoryOperand(llvm::ArrayRef<std::pair<llvm::MachineInstr*,
>         unsigned int> >, llvm::MachineInstr*) (build-all/bin/llc+0x18e6607)
>         #10 0x00000000018decc5 (anonymous
>         namespace)::InlineSpiller::spill(llvm::LiveRangeEdit&)
>         (build-all/bin/llc+0x18decc5)
>         #11 0x00000000017eb5d9 (anonymous
>         namespace)::RAGreedy::selectOrSplitImpl(llvm::LiveInterval&,
>         llvm::SmallVectorImpl<unsigned int>&, llvm::SmallSet<unsigned
>         int, 16u, std::less<unsigned int> >&, unsigned int)
>         (build-all/bin/llc+0x17eb5d9)
>         #12 0x00000000017ea1aa (anonymous
>         namespace)::RAGreedy::selectOrSplit(llvm::LiveInterval&,
>         llvm::SmallVectorImpl<unsigned int>&) (build-all/bin/llc+0x17ea1aa)
>         #13 0x000000000190ab1a llvm::RegAllocBase::allocatePhysRegs()
>         (build-all/bin/llc+0x190ab1a)
>         #14 0x00000000017e8ed1 (anonymous
>         namespace)::RAGreedy::runOnMachineFunction(llvm::MachineFunction&)
>         (build-all/bin/llc+0x17e8ed1)
>         #15 0x0000000001713749
>         llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
>         (build-all/bin/llc+0x1713749)
>         #16 0x0000000001a3cc7a
>         llvm::FPPassManager::runOnFunction(llvm::Function&)
>         (build-all/bin/llc+0x1a3cc7a)
>         #17 0x0000000001a3ced8
>         llvm::FPPassManager::runOnModule(llvm::Module&)
>         (build-all/bin/llc+0x1a3ced8)
>         #18 0x0000000001a3d40d
>         llvm::legacy::PassManagerImpl::run(llvm::Module&)
>         (build-all/bin/llc+0x1a3d40d)
>         #19 0x00000000006fccb9 compileModule(char**, llvm::LLVMContext&)
>         (build-all/bin/llc+0x6fccb9)
>         #20 0x00000000006fa2b0 main (build-all/bin/llc+0x6fa2b0)
>         #21 0x00007f7b61133f45 __libc_start_main
>         /build/eglibc-ripdx6/eglibc-2.19/csu/libc-start.c:321:0
>         #22 0x00000000006f7b0a _start (build-all/bin/llc+0x6f7b0a)
>         Abort
> 
>         NewMI is
> 
>            %26:vr128 = MOVLPSrm %26:vr128, %stack.1, 1, $noreg, 8, $noreg
> 
>         when it crashes.
> 
>         Regards,
>         Mikael
> 
> 
>         On 07/10/2018 11:00 PM, Craig Topper via llvm-commits wrote:
> 
>             Author: ctopper
>             Date: Tue Jul 10 14:00:22 2018
>             New Revision: 336728
> 
>             URL: http://llvm.org/viewvc/llvm-project?rev=336728&view=rev
>             <http://llvm.org/viewvc/llvm-project?rev=336728&view=rev>
>             Log:
>             [X86] Remove X86ISD::MOVLPS and X86ISD::MOVLPD. NFCI
> 
>             These ISD nodes try to select the MOVLPS and MOVLPD
>             instructions which are special load only instructions. They
>             load data and merge it into the lower 64-bits of an XMM
>             register. They are logically equivalent to our MOVSD node
>             plus a load.
> 
>             There was only one place in X86ISelLowering that used MOVLPD
>             and no places that selected MOVLPS. The one place that
>             selected MOVLPD had to choose between it and MOVSD based on
>             whether there was a load. But lowering is too early to tell
>             if the load can really be folded. So in isel we have
>             patterns that use MOVSD for MOVLPD if we can't find a load.
> 
>             We also had patterns that select the MOVLPD instruction for
>             a MOVSD if we can find a load, but didn't choose the MOVLPD
>             ISD opcode for some reason.
> 
>             So it seems better to just standardize on MOVSD ISD opcode
>             and manage MOVSD vs MOVLPD instruction with isel patterns.
> 
>             Modified:
>                   llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
>                   llvm/trunk/lib/Target/X86/X86ISelLowering.h
>                   llvm/trunk/lib/Target/X86/X86InstrAVX512.td
>                   llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td
>                   llvm/trunk/lib/Target/X86/X86InstrSSE.td
> 
>             Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
>             URL:
>             http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=336728&r1=336727&r2=336728&view=diff
>             <http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=336728&r1=336727&r2=336728&view=diff>
>             ==============================================================================
>             --- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
>             +++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Tue Jul 10
>             14:00:22 2018
>             @@ -4369,8 +4369,6 @@ static bool isTargetShuffle(unsigned Opc
>                  case X86ISD::VSRLDQ:
>                  case X86ISD::MOVLHPS:
>                  case X86ISD::MOVHLPS:
>             -  case X86ISD::MOVLPS:
>             -  case X86ISD::MOVLPD:
>                  case X86ISD::MOVSHDUP:
>                  case X86ISD::MOVSLDUP:
>                  case X86ISD::MOVDDUP:
>             @@ -5951,10 +5949,6 @@ static bool getTargetShuffleMask(SDNode
>                    DecodeMOVDDUPMask(NumElems, Mask);
>                    IsUnary = true;
>                    break;
>             -  case X86ISD::MOVLPD:
>             -  case X86ISD::MOVLPS:
>             -    // Not yet implemented
>             -    return false;
>                  case X86ISD::VPERMIL2: {
>                    assert(N->getOperand(0).getValueType() == VT &&
>             "Unexpected value type");
>                    assert(N->getOperand(1).getValueType() == VT &&
>             "Unexpected value type");
>             @@ -11363,8 +11357,7 @@ static SDValue lowerV2F64VectorShuffle(c
>                      // We can either use a special instruction to load
>             over the low double or
>                      // to move just the low double.
>                      return DAG.getNode(
>             -          isShuffleFoldableLoad(V1S) ? X86ISD::MOVLPD :
>             X86ISD::MOVSD,
>             -          DL, MVT::v2f64, V2,
>             +          X86ISD::MOVSD, DL, MVT::v2f64, V2,
>                          DAG.getNode(ISD::SCALAR_TO_VECTOR, DL,
>             MVT::v2f64, V1S));
>                    if (Subtarget.hasSSE41())
>             @@ -26041,8 +26034,6 @@ const char *X86TargetLowering::getTarget
>                  case X86ISD::SHUF128:            return "X86ISD::SHUF128";
>                  case X86ISD::MOVLHPS:            return "X86ISD::MOVLHPS";
>                  case X86ISD::MOVHLPS:            return "X86ISD::MOVHLPS";
>             -  case X86ISD::MOVLPS:             return "X86ISD::MOVLPS";
>             -  case X86ISD::MOVLPD:             return "X86ISD::MOVLPD";
>                  case X86ISD::MOVDDUP:            return "X86ISD::MOVDDUP";
>                  case X86ISD::MOVSHDUP:           return "X86ISD::MOVSHDUP";
>                  case X86ISD::MOVSLDUP:           return "X86ISD::MOVSLDUP";
> 
>             Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.h
>             URL:
>             http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.h?rev=336728&r1=336727&r2=336728&view=diff
>             <http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.h?rev=336728&r1=336727&r2=336728&view=diff>
>             ==============================================================================
>             --- llvm/trunk/lib/Target/X86/X86ISelLowering.h (original)
>             +++ llvm/trunk/lib/Target/X86/X86ISelLowering.h Tue Jul 10
>             14:00:22 2018
>             @@ -408,8 +408,6 @@ namespace llvm {
>                      MOVSLDUP,
>                      MOVLHPS,
>                      MOVHLPS,
>             -      MOVLPS,
>             -      MOVLPD,
>                      MOVSD,
>                      MOVSS,
>                      UNPCKL,
> 
>             Modified: llvm/trunk/lib/Target/X86/X86InstrAVX512.td
>             URL:
>             http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrAVX512.td?rev=336728&r1=336727&r2=336728&view=diff
>             <http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrAVX512.td?rev=336728&r1=336727&r2=336728&view=diff>
>             ==============================================================================
>             --- llvm/trunk/lib/Target/X86/X86InstrAVX512.td (original)
>             +++ llvm/trunk/lib/Target/X86/X86InstrAVX512.td Tue Jul 10
>             14:00:22 2018
>             @@ -4439,11 +4439,6 @@ let Predicates = [HasAVX512] in {
>                    def : Pat<(v2f64 (X86Movsd VR128X:$src1,
>             (scalar_to_vector FR64X:$src2))),
>                            (VMOVSDZrr VR128X:$src1, (COPY_TO_REGCLASS
>             FR64X:$src2, VR128X))>;
>             -
>             -  def : Pat<(v2f64 (X86Movlpd VR128X:$src1, VR128X:$src2)),
>             -            (VMOVSDZrr VR128X:$src1, VR128X:$src2)>;
>             -  def : Pat<(v4f32 (X86Movlps VR128X:$src1, VR128X:$src2)),
>             -            (VMOVSDZrr VR128X:$src1, VR128X:$src2)>;
>                }
>                  let ExeDomain = SSEPackedInt, SchedRW =
>             [SchedWriteVecLogic.XMM] in {
>             @@ -6405,7 +6400,8 @@ def VMOVHLPSZrr : AVX512PSI<0x12, MRMSrc
>                // All patterns was taken from SSS implementation.
>               
>             //===----------------------------------------------------------------------===//
>                -multiclass avx512_mov_hilo_packed<bits<8> opc, string
>             OpcodeStr, SDNode OpNode,
>             +multiclass avx512_mov_hilo_packed<bits<8> opc, string
>             OpcodeStr,
>             +                                  SDPatternOperator OpNode,
>                                                  X86VectorVTInfo _> {
>                  let ExeDomain = _.ExeDomain in
>                  def rm : AVX512<opc, MRMSrcMem, (outs _.RC:$dst),
>             @@ -6423,9 +6419,9 @@ defm VMOVHPSZ128 : avx512_mov_hilo_packe
>                                                  v4f32x_info>,
>             EVEX_CD8<32, CD8VT2>, PS;
>                defm VMOVHPDZ128 : avx512_mov_hilo_packed<0x16,
>             "vmovhpd", X86Unpckl,
>                                                  v2f64x_info>,
>             EVEX_CD8<64, CD8VT1>, PD, VEX_W;
>             -defm VMOVLPSZ128 : avx512_mov_hilo_packed<0x12, "vmovlps",
>             X86Movlps,
>             +defm VMOVLPSZ128 : avx512_mov_hilo_packed<0x12, "vmovlps",
>             null_frag,
>                                                  v4f32x_info>,
>             EVEX_CD8<32, CD8VT2>, PS;
>             -defm VMOVLPDZ128 : avx512_mov_hilo_packed<0x12, "vmovlpd",
>             X86Movlpd,
>             +defm VMOVLPDZ128 : avx512_mov_hilo_packed<0x12, "vmovlpd",
>             null_frag,
>                                                  v2f64x_info>,
>             EVEX_CD8<64, CD8VT1>, PD, VEX_W;
>                  let Predicates = [HasAVX512] in {
>             @@ -6440,12 +6436,7 @@ let Predicates = [HasAVX512] in {
>                  def : Pat<(v2f64 (X86Unpckl VR128X:$src1,
>                                    (bc_v2f64 (v2i64 (scalar_to_vector
>             (loadi64 addr:$src2)))))),
>                           (VMOVHPDZ128rm VR128X:$src1, addr:$src2)>;
>             -  // VMOVLPS patterns
>             -  def : Pat<(v4f32 (X86Movlps VR128X:$src1, (load
>             addr:$src2))),
>             -          (VMOVLPSZ128rm VR128X:$src1, addr:$src2)>;
>                  // VMOVLPD patterns
>             -  def : Pat<(v2f64 (X86Movlpd VR128X:$src1, (load
>             addr:$src2))),
>             -          (VMOVLPDZ128rm VR128X:$src1, addr:$src2)>;
>                  def : Pat<(v2f64 (X86Movsd VR128X:$src1,
>                                           (v2f64 (scalar_to_vector
>             (loadf64 addr:$src2))))),
>                          (VMOVLPDZ128rm VR128X:$src1, addr:$src2)>;
>             @@ -6487,14 +6478,6 @@ let Predicates = [HasAVX512] in {
>                                           (v2f64 (X86VPermilpi
>             VR128X:$src, (i8 1))),
>                                           (iPTR 0))), addr:$dst),
>                           (VMOVHPDZ128mr addr:$dst, VR128X:$src)>;
>             -  // VMOVLPS patterns
>             -  def : Pat<(store (v4f32 (X86Movlps (load addr:$src1),
>             VR128X:$src2)),
>             -                   addr:$src1),
>             -            (VMOVLPSZ128mr addr:$src1, VR128X:$src2)>;
>             -  // VMOVLPD patterns
>             -  def : Pat<(store (v2f64 (X86Movlpd (load addr:$src1),
>             VR128X:$src2)),
>             -                   addr:$src1),
>             -            (VMOVLPDZ128mr addr:$src1, VR128X:$src2)>;
>                }
>               
>             //===----------------------------------------------------------------------===//
>                // FMA - Fused Multiply Operations
> 
>             Modified: llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td
>             URL:
>             http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td?rev=336728&r1=336727&r2=336728&view=diff
>             <http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td?rev=336728&r1=336727&r2=336728&view=diff>
>             ==============================================================================
>             --- llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td
>             (original)
>             +++ llvm/trunk/lib/Target/X86/X86InstrFragmentsSIMD.td Tue
>             Jul 10 14:00:22 2018
>             @@ -374,9 +374,6 @@ def X86Movss : SDNode<"X86ISD::MOVSS", S
>                def X86Movlhps : SDNode<"X86ISD::MOVLHPS", SDTShuff2Op>;
>                def X86Movhlps : SDNode<"X86ISD::MOVHLPS", SDTShuff2Op>;
>                -def X86Movlps : SDNode<"X86ISD::MOVLPS", SDTShuff2Op>;
>             -def X86Movlpd : SDNode<"X86ISD::MOVLPD", SDTShuff2Op>;
>             -
>                def SDTPack : SDTypeProfile<1, 2, [SDTCisVec<0>,
>             SDTCisInt<0>,
>                                                   SDTCisVec<1>,
>             SDTCisInt<1>,
>                                                   SDTCisSameSizeAs<0,1>,
> 
>             Modified: llvm/trunk/lib/Target/X86/X86InstrSSE.td
>             URL:
>             http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrSSE.td?rev=336728&r1=336727&r2=336728&view=diff
>             <http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrSSE.td?rev=336728&r1=336727&r2=336728&view=diff>
>             ==============================================================================
>             --- llvm/trunk/lib/Target/X86/X86InstrSSE.td (original)
>             +++ llvm/trunk/lib/Target/X86/X86InstrSSE.td Tue Jul 10
>             14:00:22 2018
>             @@ -305,15 +305,6 @@ let Predicates = [UseAVX] in {
>                    def : Pat<(v2f64 (X86Movsd VR128:$src1,
>             (scalar_to_vector FR64:$src2))),
>                            (VMOVSDrr VR128:$src1, (COPY_TO_REGCLASS
>             FR64:$src2, VR128))>;
>             -
>             -  // FIXME: Instead of a X86Movlps there should be a
>             X86Movsd here, the problem
>             -  // is during lowering, where it's not possible to
>             recognize the fold cause
>             -  // it has two uses through a bitcast. One use disappears
>             at isel time and the
>             -  // fold opportunity reappears.
>             -  def : Pat<(v2f64 (X86Movlpd VR128:$src1, VR128:$src2)),
>             -            (VMOVSDrr VR128:$src1, VR128:$src2)>;
>             -  def : Pat<(v4f32 (X86Movlps VR128:$src1, VR128:$src2)),
>             -            (VMOVSDrr VR128:$src1, VR128:$src2)>;
>                }
>                  let Predicates = [UseSSE1] in {
>             @@ -372,15 +363,6 @@ let Predicates = [UseSSE2] in {
>                    def : Pat<(v2f64 (X86Movsd VR128:$src1,
>             (scalar_to_vector FR64:$src2))),
>                            (MOVSDrr VR128:$src1, (COPY_TO_REGCLASS
>             FR64:$src2, VR128))>;
>             -
>             -  // FIXME: Instead of a X86Movlps there should be a
>             X86Movsd here, the problem
>             -  // is during lowering, where it's not possible to
>             recognize the fold because
>             -  // it has two uses through a bitcast. One use disappears
>             at isel time and the
>             -  // fold opportunity reappears.
>             -  def : Pat<(v2f64 (X86Movlpd VR128:$src1, VR128:$src2)),
>             -            (MOVSDrr VR128:$src1, VR128:$src2)>;
>             -  def : Pat<(v4f32 (X86Movlps VR128:$src1, VR128:$src2)),
>             -            (MOVSDrr VR128:$src1, VR128:$src2)>;
>                }
>                  // Aliases to help the assembler pick two byte VEX
>             encodings by swapping the
>             @@ -692,8 +674,8 @@ multiclass sse12_mov_hilo_packed_base<bi
>                     Sched<[SchedWriteFShuffle.XMM.Folded, ReadAfterLd]>;
>                }
>                -multiclass sse12_mov_hilo_packed<bits<8>opc, SDNode
>             psnode, SDNode pdnode,
>             -                                 string base_opc> {
>             +multiclass sse12_mov_hilo_packed<bits<8>opc,
>             SDPatternOperator psnode,
>             +                                 SDPatternOperator pdnode,
>             string base_opc> {
>                  let Predicates = [UseAVX] in
>                    defm V#NAME : sse12_mov_hilo_packed_base<opc, psnode,
>             pdnode, base_opc,
>                                                    "\t{$src2, $src1,
>             $dst|$dst, $src1, $src2}">,
>             @@ -704,7 +686,7 @@ multiclass sse12_mov_hilo_packed<bits<8>
>                                                    "\t{$src2, $dst|$dst,
>             $src2}">;
>                }
>                -defm MOVL : sse12_mov_hilo_packed<0x12, X86Movlps,
>             X86Movlpd, "movlp">;
>             +defm MOVL : sse12_mov_hilo_packed<0x12, null_frag,
>             null_frag, "movlp">;
>                  let SchedRW = [WriteFStore] in {
>                let Predicates = [UseAVX] in {
>             @@ -730,24 +712,10 @@ def MOVLPDmr : PDI<0x13, MRMDestMem, (ou
>                } // SchedRW
>                  let Predicates = [UseAVX] in {
>             -  // Shuffle with VMOVLPS
>             -  def : Pat<(v4f32 (X86Movlps VR128:$src1, (load addr:$src2))),
>             -            (VMOVLPSrm VR128:$src1, addr:$src2)>;
>             -
>                  // Shuffle with VMOVLPD
>             -  def : Pat<(v2f64 (X86Movlpd VR128:$src1, (load addr:$src2))),
>             -            (VMOVLPDrm VR128:$src1, addr:$src2)>;
>                  def : Pat<(v2f64 (X86Movsd VR128:$src1,
>                                             (v2f64 (scalar_to_vector
>             (loadf64 addr:$src2))))),
>                            (VMOVLPDrm VR128:$src1, addr:$src2)>;
>             -
>             -  // Store patterns
>             -  def : Pat<(store (v4f32 (X86Movlps (load addr:$src1),
>             VR128:$src2)),
>             -                   addr:$src1),
>             -            (VMOVLPSmr addr:$src1, VR128:$src2)>;
>             -  def : Pat<(store (v2f64 (X86Movlpd (load addr:$src1),
>             VR128:$src2)),
>             -                   addr:$src1),
>             -            (VMOVLPDmr addr:$src1, VR128:$src2)>;
>                }
>                  let Predicates = [UseSSE1] in {
>             @@ -755,32 +723,13 @@ let Predicates = [UseSSE1] in {
>                  def : Pat<(store (i64 (extractelt (bc_v2i64 (v4f32
>             VR128:$src2)),
>                                                 (iPTR 0))), addr:$src1),
>                            (MOVLPSmr addr:$src1, VR128:$src2)>;
>             -
>             -  // Shuffle with MOVLPS
>             -  def : Pat<(v4f32 (X86Movlps VR128:$src1, (load addr:$src2))),
>             -            (MOVLPSrm VR128:$src1, addr:$src2)>;
>             -  def : Pat<(X86Movlps VR128:$src1,
>             -                      (bc_v4f32 (v2i64 (scalar_to_vector
>             (loadi64 addr:$src2))))),
>             -            (MOVLPSrm VR128:$src1, addr:$src2)>;
>             -
>             -  // Store patterns
>             -  def : Pat<(store (v4f32 (X86Movlps (load addr:$src1),
>             VR128:$src2)),
>             -                                      addr:$src1),
>             -            (MOVLPSmr addr:$src1, VR128:$src2)>;
>                }
>                  let Predicates = [UseSSE2] in {
>                  // Shuffle with MOVLPD
>             -  def : Pat<(v2f64 (X86Movlpd VR128:$src1, (load addr:$src2))),
>             -            (MOVLPDrm VR128:$src1, addr:$src2)>;
>                  def : Pat<(v2f64 (X86Movsd VR128:$src1,
>                                             (v2f64 (scalar_to_vector
>             (loadf64 addr:$src2))))),
>                            (MOVLPDrm VR128:$src1, addr:$src2)>;
>             -
>             -  // Store patterns
>             -  def : Pat<(store (v2f64 (X86Movlpd (load addr:$src1),
>             VR128:$src2)),
>             -                           addr:$src1),
>             -            (MOVLPDmr addr:$src1, VR128:$src2)>;
>                }
>                 
>             //===----------------------------------------------------------------------===//
> 
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