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722e9e6d0a
Add pseudo conditional store instructions, so that we use:
branch foo:
store
foo:
instead of:
load
branch foo:
move
foo:
store
z196 has real 32-bit and 64-bit conditional stores, but we don't use
any z196 instructions yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185065 91177308-0d34-0410-b5e6-96231b3b80d8
234 lines
12 KiB
TableGen
234 lines
12 KiB
TableGen
//===-- SystemZOperators.td - SystemZ-specific operators ------*- tblgen-*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Type profiles
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//===----------------------------------------------------------------------===//
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def SDT_CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i64>]>;
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def SDT_CallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i64>,
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SDTCisVT<1, i64>]>;
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def SDT_ZCall : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
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def SDT_ZCmp : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
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def SDT_ZBRCCMask : SDTypeProfile<0, 2,
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[SDTCisVT<0, i8>,
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SDTCisVT<1, OtherVT>]>;
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def SDT_ZSelectCCMask : SDTypeProfile<1, 3,
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[SDTCisSameAs<0, 1>,
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SDTCisSameAs<1, 2>,
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SDTCisVT<3, i8>]>;
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def SDT_ZWrapPtr : SDTypeProfile<1, 1,
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[SDTCisSameAs<0, 1>,
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SDTCisPtrTy<0>]>;
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def SDT_ZAdjDynAlloc : SDTypeProfile<1, 0, [SDTCisVT<0, i64>]>;
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def SDT_ZExtractAccess : SDTypeProfile<1, 1,
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[SDTCisVT<0, i32>,
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SDTCisVT<1, i8>]>;
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def SDT_ZGR128Binary32 : SDTypeProfile<1, 2,
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[SDTCisVT<0, untyped>,
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SDTCisVT<1, untyped>,
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SDTCisVT<2, i32>]>;
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def SDT_ZGR128Binary64 : SDTypeProfile<1, 2,
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[SDTCisVT<0, untyped>,
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SDTCisVT<1, untyped>,
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SDTCisVT<2, i64>]>;
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def SDT_ZAtomicLoadBinaryW : SDTypeProfile<1, 5,
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[SDTCisVT<0, i32>,
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SDTCisPtrTy<1>,
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SDTCisVT<2, i32>,
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SDTCisVT<3, i32>,
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SDTCisVT<4, i32>,
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SDTCisVT<5, i32>]>;
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def SDT_ZAtomicCmpSwapW : SDTypeProfile<1, 6,
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[SDTCisVT<0, i32>,
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SDTCisPtrTy<1>,
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SDTCisVT<2, i32>,
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SDTCisVT<3, i32>,
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SDTCisVT<4, i32>,
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SDTCisVT<5, i32>,
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SDTCisVT<6, i32>]>;
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//===----------------------------------------------------------------------===//
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// Node definitions
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//===----------------------------------------------------------------------===//
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// These are target-independent nodes, but have target-specific formats.
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def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_CallSeqStart,
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[SDNPHasChain, SDNPSideEffect, SDNPOutGlue]>;
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def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_CallSeqEnd,
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[SDNPHasChain, SDNPSideEffect, SDNPOptInGlue,
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SDNPOutGlue]>;
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// Nodes for SystemZISD::*. See SystemZISelLowering.h for more details.
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def z_retflag : SDNode<"SystemZISD::RET_FLAG", SDTNone,
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[SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
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def z_call : SDNode<"SystemZISD::CALL", SDT_ZCall,
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[SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
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SDNPVariadic]>;
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def z_pcrel_wrapper : SDNode<"SystemZISD::PCREL_WRAPPER", SDT_ZWrapPtr, []>;
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def z_cmp : SDNode<"SystemZISD::CMP", SDT_ZCmp, [SDNPOutGlue]>;
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def z_ucmp : SDNode<"SystemZISD::UCMP", SDT_ZCmp, [SDNPOutGlue]>;
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def z_br_ccmask : SDNode<"SystemZISD::BR_CCMASK", SDT_ZBRCCMask,
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[SDNPHasChain, SDNPInGlue]>;
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def z_select_ccmask : SDNode<"SystemZISD::SELECT_CCMASK", SDT_ZSelectCCMask,
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[SDNPInGlue]>;
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def z_adjdynalloc : SDNode<"SystemZISD::ADJDYNALLOC", SDT_ZAdjDynAlloc>;
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def z_extract_access : SDNode<"SystemZISD::EXTRACT_ACCESS",
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SDT_ZExtractAccess>;
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def z_umul_lohi64 : SDNode<"SystemZISD::UMUL_LOHI64", SDT_ZGR128Binary64>;
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def z_sdivrem64 : SDNode<"SystemZISD::SDIVREM64", SDT_ZGR128Binary64>;
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def z_udivrem32 : SDNode<"SystemZISD::UDIVREM32", SDT_ZGR128Binary32>;
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def z_udivrem64 : SDNode<"SystemZISD::UDIVREM64", SDT_ZGR128Binary64>;
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class AtomicWOp<string name, SDTypeProfile profile = SDT_ZAtomicLoadBinaryW>
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: SDNode<"SystemZISD::"##name, profile,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def z_atomic_swapw : AtomicWOp<"ATOMIC_SWAPW">;
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def z_atomic_loadw_add : AtomicWOp<"ATOMIC_LOADW_ADD">;
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def z_atomic_loadw_sub : AtomicWOp<"ATOMIC_LOADW_SUB">;
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def z_atomic_loadw_and : AtomicWOp<"ATOMIC_LOADW_AND">;
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def z_atomic_loadw_or : AtomicWOp<"ATOMIC_LOADW_OR">;
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def z_atomic_loadw_xor : AtomicWOp<"ATOMIC_LOADW_XOR">;
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def z_atomic_loadw_nand : AtomicWOp<"ATOMIC_LOADW_NAND">;
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def z_atomic_loadw_min : AtomicWOp<"ATOMIC_LOADW_MIN">;
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def z_atomic_loadw_max : AtomicWOp<"ATOMIC_LOADW_MAX">;
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def z_atomic_loadw_umin : AtomicWOp<"ATOMIC_LOADW_UMIN">;
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def z_atomic_loadw_umax : AtomicWOp<"ATOMIC_LOADW_UMAX">;
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def z_atomic_cmp_swapw : AtomicWOp<"ATOMIC_CMP_SWAPW", SDT_ZAtomicCmpSwapW>;
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//===----------------------------------------------------------------------===//
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// Pattern fragments
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//===----------------------------------------------------------------------===//
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// Register sign-extend operations. Sub-32-bit values are represented as i32s.
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def sext8 : PatFrag<(ops node:$src), (sext_inreg node:$src, i8)>;
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def sext16 : PatFrag<(ops node:$src), (sext_inreg node:$src, i16)>;
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def sext32 : PatFrag<(ops node:$src), (sext (i32 node:$src))>;
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// Register zero-extend operations. Sub-32-bit values are represented as i32s.
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def zext8 : PatFrag<(ops node:$src), (and node:$src, 0xff)>;
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def zext16 : PatFrag<(ops node:$src), (and node:$src, 0xffff)>;
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def zext32 : PatFrag<(ops node:$src), (zext (i32 node:$src))>;
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// Typed floating-point loads.
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def loadf32 : PatFrag<(ops node:$src), (f32 (load node:$src))>;
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def loadf64 : PatFrag<(ops node:$src), (f64 (load node:$src))>;
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// Extending loads in which the extension type doesn't matter.
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def anyextload : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
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return cast<LoadSDNode>(N)->getExtensionType() != ISD::NON_EXTLOAD;
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}]>;
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def anyextloadi8 : PatFrag<(ops node:$ptr), (anyextload node:$ptr), [{
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return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i8;
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}]>;
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def anyextloadi16 : PatFrag<(ops node:$ptr), (anyextload node:$ptr), [{
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return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i16;
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}]>;
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def anyextloadi32 : PatFrag<(ops node:$ptr), (anyextload node:$ptr), [{
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return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
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}]>;
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// Aligned loads.
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class AlignedLoad<SDPatternOperator load>
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: PatFrag<(ops node:$addr), (load node:$addr), [{
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LoadSDNode *Load = cast<LoadSDNode>(N);
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return Load->getAlignment() >= Load->getMemoryVT().getStoreSize();
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}]>;
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def aligned_load : AlignedLoad<load>;
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def aligned_sextloadi16 : AlignedLoad<sextloadi16>;
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def aligned_sextloadi32 : AlignedLoad<sextloadi32>;
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def aligned_zextloadi16 : AlignedLoad<zextloadi16>;
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def aligned_zextloadi32 : AlignedLoad<zextloadi32>;
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// Aligned stores.
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class AlignedStore<SDPatternOperator store>
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: PatFrag<(ops node:$src, node:$addr), (store node:$src, node:$addr), [{
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StoreSDNode *Store = cast<StoreSDNode>(N);
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return Store->getAlignment() >= Store->getMemoryVT().getStoreSize();
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}]>;
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def aligned_store : AlignedStore<store>;
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def aligned_truncstorei16 : AlignedStore<truncstorei16>;
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def aligned_truncstorei32 : AlignedStore<truncstorei32>;
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// Non-volatile loads. Used for instructions that might access the storage
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// location multiple times.
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class NonvolatileLoad<SDPatternOperator load>
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: PatFrag<(ops node:$addr), (load node:$addr), [{
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LoadSDNode *Load = cast<LoadSDNode>(N);
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return !Load->isVolatile();
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}]>;
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def nonvolatile_load : NonvolatileLoad<load>;
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def nonvolatile_anyextloadi8 : NonvolatileLoad<anyextloadi8>;
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def nonvolatile_anyextloadi16 : NonvolatileLoad<anyextloadi16>;
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def nonvolatile_anyextloadi32 : NonvolatileLoad<anyextloadi32>;
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// Non-volatile stores.
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class NonvolatileStore<SDPatternOperator store>
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: PatFrag<(ops node:$src, node:$addr), (store node:$src, node:$addr), [{
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StoreSDNode *Store = cast<StoreSDNode>(N);
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return !Store->isVolatile();
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}]>;
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def nonvolatile_store : NonvolatileStore<store>;
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def nonvolatile_truncstorei8 : NonvolatileStore<truncstorei8>;
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def nonvolatile_truncstorei16 : NonvolatileStore<truncstorei16>;
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def nonvolatile_truncstorei32 : NonvolatileStore<truncstorei32>;
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// Insertions.
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def inserti8 : PatFrag<(ops node:$src1, node:$src2),
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(or (and node:$src1, -256), node:$src2)>;
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def insertll : PatFrag<(ops node:$src1, node:$src2),
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(or (and node:$src1, 0xffffffffffff0000), node:$src2)>;
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def insertlh : PatFrag<(ops node:$src1, node:$src2),
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(or (and node:$src1, 0xffffffff0000ffff), node:$src2)>;
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def inserthl : PatFrag<(ops node:$src1, node:$src2),
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(or (and node:$src1, 0xffff0000ffffffff), node:$src2)>;
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def inserthh : PatFrag<(ops node:$src1, node:$src2),
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(or (and node:$src1, 0x0000ffffffffffff), node:$src2)>;
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def insertlf : PatFrag<(ops node:$src1, node:$src2),
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(or (and node:$src1, 0xffffffff00000000), node:$src2)>;
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def inserthf : PatFrag<(ops node:$src1, node:$src2),
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(or (and node:$src1, 0x00000000ffffffff), node:$src2)>;
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// ORs that can be treated as insertions.
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def or_as_inserti8 : PatFrag<(ops node:$src1, node:$src2),
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(or node:$src1, node:$src2), [{
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unsigned BitWidth = N->getValueType(0).getScalarType().getSizeInBits();
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return CurDAG->MaskedValueIsZero(N->getOperand(0),
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APInt::getLowBitsSet(BitWidth, 8));
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}]>;
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// ORs that can be treated as reversed insertions.
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def or_as_revinserti8 : PatFrag<(ops node:$src1, node:$src2),
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(or node:$src1, node:$src2), [{
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unsigned BitWidth = N->getValueType(0).getScalarType().getSizeInBits();
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return CurDAG->MaskedValueIsZero(N->getOperand(1),
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APInt::getLowBitsSet(BitWidth, 8));
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}]>;
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// Fused multiply-add and multiply-subtract, but with the order of the
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// operands matching SystemZ's MA and MS instructions.
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def z_fma : PatFrag<(ops node:$src1, node:$src2, node:$src3),
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(fma node:$src2, node:$src3, node:$src1)>;
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def z_fms : PatFrag<(ops node:$src1, node:$src2, node:$src3),
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(fma node:$src2, node:$src3, (fneg node:$src1))>;
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// Floating-point negative absolute.
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def fnabs : PatFrag<(ops node:$ptr), (fneg (fabs node:$ptr))>;
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// Create a unary operator that loads from memory and then performs
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// the given operation on it.
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class loadu<SDPatternOperator operator, SDPatternOperator load = load>
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: PatFrag<(ops node:$addr), (operator (load node:$addr))>;
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// Create a store operator that performs the given unary operation
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// on the value before storing it.
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class storeu<SDPatternOperator operator, SDPatternOperator store = store>
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: PatFrag<(ops node:$value, node:$addr),
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(store (operator node:$value), node:$addr)>;
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