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Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPUInstructions.td')
-rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPUInstructions.td | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstructions.td b/llvm/lib/Target/AMDGPU/AMDGPUInstructions.td new file mode 100644 index 00000000000..81b58c16e0f --- /dev/null +++ b/llvm/lib/Target/AMDGPU/AMDGPUInstructions.td @@ -0,0 +1,123 @@ +//===-- AMDGPUInstructions.td - Common instruction defs ---*- tablegen -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains instruction defs that are common to all hw codegen +// targets. +// +//===----------------------------------------------------------------------===// + +class AMDGPUInst <dag outs, dag ins, string asm, list<dag> pattern> : Instruction { + field bits<16> AMDILOp = 0; + field bits<3> Gen = 0; + + let Namespace = "AMDGPU"; + let OutOperandList = outs; + let InOperandList = ins; + let AsmString = asm; + let Pattern = pattern; + let Itinerary = NullALU; + let TSFlags{42-40} = Gen; + let TSFlags{63-48} = AMDILOp; +} + +class AMDGPUShaderInst <dag outs, dag ins, string asm, list<dag> pattern> + : AMDGPUInst<outs, ins, asm, pattern> { + + field bits<32> Inst = 0xffffffff; + +} + +class Constants { +int TWO_PI = 0x40c90fdb; +int PI = 0x40490fdb; +int TWO_PI_INV = 0x3e22f983; +} +def CONST : Constants; + +def FP_ZERO : PatLeaf < + (fpimm), + [{return N->getValueAPF().isZero();}] +>; + +def FP_ONE : PatLeaf < + (fpimm), + [{return N->isExactlyValue(1.0);}] +>; + +let isCodeGenOnly = 1, isPseudo = 1, usesCustomInserter = 1 in { + +class CLAMP <RegisterClass rc> : AMDGPUShaderInst < + (outs rc:$dst), + (ins rc:$src0), + "CLAMP $dst, $src0", + [(set rc:$dst, (int_AMDIL_clamp rc:$src0, (f32 FP_ZERO), (f32 FP_ONE)))] +>; + +class FABS <RegisterClass rc> : AMDGPUShaderInst < + (outs rc:$dst), + (ins rc:$src0), + "FABS $dst, $src0", + [(set rc:$dst, (fabs rc:$src0))] +>; + +class FNEG <RegisterClass rc> : AMDGPUShaderInst < + (outs rc:$dst), + (ins rc:$src0), + "FNEG $dst, $src0", + [(set rc:$dst, (fneg rc:$src0))] +>; + +} // End isCodeGenOnly = 1, isPseudo = 1, hasCustomInserter = 1 + +/* Generic helper patterns for intrinsics */ +/* -------------------------------------- */ + +class POW_Common <AMDGPUInst log_ieee, AMDGPUInst exp_ieee, AMDGPUInst mul, + RegisterClass rc> : Pat < + (int_AMDGPU_pow rc:$src0, rc:$src1), + (exp_ieee (mul rc:$src1, (log_ieee rc:$src0))) +>; + +/* Other helper patterns */ +/* --------------------- */ + +/* Extract element pattern */ +class Extract_Element <ValueType sub_type, ValueType vec_type, + RegisterClass vec_class, int sub_idx, + SubRegIndex sub_reg>: Pat< + (sub_type (vector_extract (vec_type vec_class:$src), sub_idx)), + (EXTRACT_SUBREG vec_class:$src, sub_reg) +>; + +/* Insert element pattern */ +class Insert_Element <ValueType elem_type, ValueType vec_type, + RegisterClass elem_class, RegisterClass vec_class, + int sub_idx, SubRegIndex sub_reg> : Pat < + + (vec_type (vector_insert (vec_type vec_class:$vec), + (elem_type elem_class:$elem), sub_idx)), + (INSERT_SUBREG vec_class:$vec, elem_class:$elem, sub_reg) +>; + +// Vector Build pattern +class Vector_Build <ValueType vecType, RegisterClass elemClass> : Pat < + (IL_vbuild elemClass:$src), + (INSERT_SUBREG (vecType (IMPLICIT_DEF)), elemClass:$src, sel_x) +>; + +// bitconvert pattern +class BitConvert <ValueType dt, ValueType st, RegisterClass rc> : Pat < + (dt (bitconvert (st rc:$src0))), + (dt rc:$src0) +>; + +include "R600Instructions.td" + +include "SIInstrInfo.td" + |