1 //===-- AMDGPUInstructions.td - Common instruction defs ---*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains instruction defs that are common to all hw codegen
13 //===----------------------------------------------------------------------===//
15 class AMDGPUInst <dag outs, dag ins, string asm, list<dag> pattern> : Instruction {
16 field bits<16> AMDILOp = 0;
17 field bits<3> Gen = 0;
19 let Namespace = "AMDGPU";
20 let OutOperandList = outs;
21 let InOperandList = ins;
23 let Pattern = pattern;
24 let Itinerary = NullALU;
25 let TSFlags{42-40} = Gen;
26 let TSFlags{63-48} = AMDILOp;
29 class AMDGPUShaderInst <dag outs, dag ins, string asm, list<dag> pattern>
30 : AMDGPUInst<outs, ins, asm, pattern> {
32 field bits<32> Inst = 0xffffffff;
37 int TWO_PI = 0x40c90fdb;
39 int TWO_PI_INV = 0x3e22f983;
41 def CONST : Constants;
43 def FP_ZERO : PatLeaf <
45 [{return N->getValueAPF().isZero();}]
48 def FP_ONE : PatLeaf <
50 [{return N->isExactlyValue(1.0);}]
53 let isCodeGenOnly = 1, isPseudo = 1, usesCustomInserter = 1 in {
55 class CLAMP <RegisterClass rc> : AMDGPUShaderInst <
59 [(set rc:$dst, (int_AMDIL_clamp rc:$src0, (f32 FP_ZERO), (f32 FP_ONE)))]
62 class FABS <RegisterClass rc> : AMDGPUShaderInst <
66 [(set rc:$dst, (fabs rc:$src0))]
69 class FNEG <RegisterClass rc> : AMDGPUShaderInst <
73 [(set rc:$dst, (fneg rc:$src0))]
76 } // End isCodeGenOnly = 1, isPseudo = 1, hasCustomInserter = 1
78 /* Generic helper patterns for intrinsics */
79 /* -------------------------------------- */
81 class POW_Common <AMDGPUInst log_ieee, AMDGPUInst exp_ieee, AMDGPUInst mul,
82 RegisterClass rc> : Pat <
83 (int_AMDGPU_pow rc:$src0, rc:$src1),
84 (exp_ieee (mul rc:$src1, (log_ieee rc:$src0)))
87 /* Other helper patterns */
88 /* --------------------- */
90 /* Extract element pattern */
91 class Extract_Element <ValueType sub_type, ValueType vec_type,
92 RegisterClass vec_class, int sub_idx,
93 SubRegIndex sub_reg>: Pat<
94 (sub_type (vector_extract (vec_type vec_class:$src), sub_idx)),
95 (EXTRACT_SUBREG vec_class:$src, sub_reg)
98 /* Insert element pattern */
99 class Insert_Element <ValueType elem_type, ValueType vec_type,
100 RegisterClass elem_class, RegisterClass vec_class,
101 int sub_idx, SubRegIndex sub_reg> : Pat <
103 (vec_type (vector_insert (vec_type vec_class:$vec),
104 (elem_type elem_class:$elem), sub_idx)),
105 (INSERT_SUBREG vec_class:$vec, elem_class:$elem, sub_reg)
108 // Vector Build pattern
109 class Vector_Build <ValueType vecType, RegisterClass elemClass> : Pat <
110 (IL_vbuild elemClass:$src),
111 (INSERT_SUBREG (vecType (IMPLICIT_DEF)), elemClass:$src, sel_x)
114 // bitconvert pattern
115 class BitConvert <ValueType dt, ValueType st, RegisterClass rc> : Pat <
116 (dt (bitconvert (st rc:$src0))),
120 include "R600Instructions.td"
122 include "SIInstrInfo.td"