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;
36 def COND_EQ : PatLeaf <
38 [{switch(N->get()){{default: return false;
39 case ISD::SETOEQ: case ISD::SETUEQ:
40 case ISD::SETEQ: return true;}}}]
43 def COND_NE : PatLeaf <
45 [{switch(N->get()){{default: return false;
46 case ISD::SETONE: case ISD::SETUNE:
47 case ISD::SETNE: return true;}}}]
49 def COND_GT : PatLeaf <
51 [{switch(N->get()){{default: return false;
52 case ISD::SETOGT: case ISD::SETUGT:
53 case ISD::SETGT: return true;}}}]
56 def COND_GE : PatLeaf <
58 [{switch(N->get()){{default: return false;
59 case ISD::SETOGE: case ISD::SETUGE:
60 case ISD::SETGE: return true;}}}]
63 def COND_LT : PatLeaf <
65 [{switch(N->get()){{default: return false;
66 case ISD::SETOLT: case ISD::SETULT:
67 case ISD::SETLT: return true;}}}]
70 def COND_LE : PatLeaf <
72 [{switch(N->get()){{default: return false;
73 case ISD::SETOLE: case ISD::SETULE:
74 case ISD::SETLE: return true;}}}]
78 int TWO_PI = 0x40c90fdb;
80 int TWO_PI_INV = 0x3e22f983;
82 def CONST : Constants;
84 def FP_ZERO : PatLeaf <
86 [{return N->getValueAPF().isZero();}]
89 def FP_ONE : PatLeaf <
91 [{return N->isExactlyValue(1.0);}]
94 let isCodeGenOnly = 1, isPseudo = 1, usesCustomInserter = 1 in {
96 class CLAMP <RegisterClass rc> : AMDGPUShaderInst <
100 [(set rc:$dst, (int_AMDIL_clamp rc:$src0, (f32 FP_ZERO), (f32 FP_ONE)))]
103 class FABS <RegisterClass rc> : AMDGPUShaderInst <
107 [(set rc:$dst, (fabs rc:$src0))]
110 class FNEG <RegisterClass rc> : AMDGPUShaderInst <
114 [(set rc:$dst, (fneg rc:$src0))]
117 } // End isCodeGenOnly = 1, isPseudo = 1, hasCustomInserter = 1
119 /* Generic helper patterns for intrinsics */
120 /* -------------------------------------- */
122 class POW_Common <AMDGPUInst log_ieee, AMDGPUInst exp_ieee, AMDGPUInst mul,
123 RegisterClass rc> : Pat <
124 (int_AMDGPU_pow rc:$src0, rc:$src1),
125 (exp_ieee (mul rc:$src1, (log_ieee rc:$src0)))
128 /* Other helper patterns */
129 /* --------------------- */
131 /* Extract element pattern */
132 class Extract_Element <ValueType sub_type, ValueType vec_type,
133 RegisterClass vec_class, int sub_idx,
134 SubRegIndex sub_reg>: Pat<
135 (sub_type (vector_extract (vec_type vec_class:$src), sub_idx)),
136 (EXTRACT_SUBREG vec_class:$src, sub_reg)
139 /* Insert element pattern */
140 class Insert_Element <ValueType elem_type, ValueType vec_type,
141 RegisterClass elem_class, RegisterClass vec_class,
142 int sub_idx, SubRegIndex sub_reg> : Pat <
144 (vec_type (vector_insert (vec_type vec_class:$vec),
145 (elem_type elem_class:$elem), sub_idx)),
146 (INSERT_SUBREG vec_class:$vec, elem_class:$elem, sub_reg)
149 // Vector Build pattern
150 class Vector_Build <ValueType vecType, RegisterClass elemClass> : Pat <
151 (IL_vbuild elemClass:$src),
152 (INSERT_SUBREG (vecType (IMPLICIT_DEF)), elemClass:$src, sel_x)
155 // bitconvert pattern
156 class BitConvert <ValueType dt, ValueType st, RegisterClass rc> : Pat <
157 (dt (bitconvert (st rc:$src0))),
161 include "R600Instructions.td"
163 include "SIInstrInfo.td"