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[AMDGPU] Split dot-insts feature

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Differential Revision: https://reviews.llvm.org/D57971

llvm-svn: 353587
This commit is contained in:
Stanislav Mekhanoshin 2019-02-09 00:34:21 +00:00
parent 4ef25cfd76
commit 4063d7d54a
5 changed files with 56 additions and 24 deletions
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22
lib/Target/AMDGPU/AMDGPU.td
View File

@ -269,10 +269,16 @@ def FeatureDLInsts : SubtargetFeature<"dl-insts",
"Has v_fmac_f32 and v_xnor_b32 instructions"
>;
def FeatureDotInsts : SubtargetFeature<"dot-insts",
"HasDotInsts",
def FeatureDot1Insts : SubtargetFeature<"dot1-insts",
"HasDot1Insts",
"true",
"Has v_dot* instructions"
"Has v_dot4_i32_i8 and v_dot8_i32_i4 instructions"
>;
def FeatureDot2Insts : SubtargetFeature<"dot2-insts",
"HasDot2Insts",
"true",
"Has v_dot2_f32_f16, v_dot2_i32_i16, v_dot2_u32_u16, v_dot4_u32_u8, v_dot8_u32_u4 instructions"
>;
def FeatureSRAMECC : SubtargetFeature<"sram-ecc",
@ -570,7 +576,8 @@ def FeatureISAVersion9_0_6 : FeatureSet<
FeatureFmaMixInsts,
FeatureLDSBankCount32,
FeatureDLInsts,
FeatureDotInsts,
FeatureDot1Insts,
FeatureDot2Insts,
FeatureSRAMECC,
FeatureCodeObjectV3]>;
@ -769,8 +776,11 @@ def HasFmaMixInsts : Predicate<"Subtarget->hasFmaMixInsts()">,
def HasDLInsts : Predicate<"Subtarget->hasDLInsts()">,
AssemblerPredicate<"FeatureDLInsts">;
def HasDotInsts : Predicate<"Subtarget->hasDotInsts()">,
AssemblerPredicate<"FeatureDotInsts">;
def HasDot1Insts : Predicate<"Subtarget->hasDot1Insts()">,
AssemblerPredicate<"FeatureDot1Insts">;
def HasDot2Insts : Predicate<"Subtarget->hasDot2Insts()">,
AssemblerPredicate<"FeatureDot2Insts">;
def EnableLateCFGStructurize : Predicate<

3
lib/Target/AMDGPU/AMDGPUSubtarget.cpp
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@ -206,7 +206,8 @@ GCNSubtarget::GCNSubtarget(const Triple &TT, StringRef GPU, StringRef FS,
HasDPP(false),
HasR128A16(false),
HasDLInsts(false),
HasDotInsts(false),
HasDot1Insts(false),
HasDot2Insts(false),
EnableSRAMECC(false),
FlatAddressSpace(false),
FlatInstOffsets(false),

11
lib/Target/AMDGPU/AMDGPUSubtarget.h
View File

@ -332,7 +332,8 @@ protected:
bool HasDPP;
bool HasR128A16;
bool HasDLInsts;
bool HasDotInsts;
bool HasDot1Insts;
bool HasDot2Insts;
bool EnableSRAMECC;
bool FlatAddressSpace;
bool FlatInstOffsets;
@ -666,8 +667,12 @@ public:
return HasDLInsts;
}
bool hasDotInsts() const {
return HasDotInsts;
bool hasDot1Insts() const {
return HasDot1Insts;
}
bool hasDot2Insts() const {
return HasDot2Insts;
}
bool isSRAMECCEnabled() const {

2
lib/Target/AMDGPU/SIISelLowering.cpp
View File

@ -8708,7 +8708,7 @@ SDValue SITargetLowering::performFMACombine(SDNode *N,
EVT VT = N->getValueType(0);
SDLoc SL(N);
if (!Subtarget->hasDotInsts() || VT != MVT::f32)
if (!Subtarget->hasDot2Insts() || VT != MVT::f32)
return SDValue();
// FMA((F32)S0.x, (F32)S1. x, FMA((F32)S0.y, (F32)S1.y, (F32)z)) ->

42
lib/Target/AMDGPU/VOP3PInstructions.td
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@ -238,29 +238,39 @@ class UDot2Pat<Instruction Inst> : GCNPat <
(AMDGPUmul_u24_oneuse (and i32:$src0, (i32 65535)),
(and i32:$src1, (i32 65535)))
),
(Inst (i32 8), $src0, (i32 8), $src1, (i32 8), $src2, (i1 0))
>;
(Inst (i32 8), $src0, (i32 8), $src1, (i32 8), $src2, (i1 0))> {
let SubtargetPredicate = !cast<VOP_Pseudo>(Inst).SubtargetPredicate;
}
class SDot2Pat<Instruction Inst> : GCNPat <
(add (add_oneuse (AMDGPUmul_i24_oneuse (sra i32:$src0, (i32 16)),
(sra i32:$src1, (i32 16))), i32:$src2),
(AMDGPUmul_i24_oneuse (sext_inreg i32:$src0, i16),
(sext_inreg i32:$src1, i16))),
(Inst (i32 8), $src0, (i32 8), $src1, (i32 8), $src2, (i1 0))
>;
(Inst (i32 8), $src0, (i32 8), $src1, (i32 8), $src2, (i1 0))> {
let SubtargetPredicate = !cast<VOP_Pseudo>(Inst).SubtargetPredicate;
}
let SubtargetPredicate = HasDotInsts in {
let SubtargetPredicate = HasDot2Insts in {
def V_DOT2_F32_F16 : VOP3PInst<"v_dot2_f32_f16", VOP3_Profile<VOP_F32_V2F16_V2F16_F32>>;
def V_DOT2_I32_I16 : VOP3PInst<"v_dot2_i32_i16", VOP3_Profile<VOP_I32_V2I16_V2I16_I32>>;
def V_DOT2_U32_U16 : VOP3PInst<"v_dot2_u32_u16", VOP3_Profile<VOP_I32_V2I16_V2I16_I32>>;
def V_DOT4_I32_I8 : VOP3PInst<"v_dot4_i32_i8", VOP3_Profile<VOP_I32_I32_I32_I32, VOP3_PACKED>>;
def V_DOT4_U32_U8 : VOP3PInst<"v_dot4_u32_u8", VOP3_Profile<VOP_I32_I32_I32_I32, VOP3_PACKED>>;
def V_DOT8_I32_I4 : VOP3PInst<"v_dot8_i32_i4", VOP3_Profile<VOP_I32_I32_I32_I32, VOP3_PACKED>>;
def V_DOT8_U32_U4 : VOP3PInst<"v_dot8_u32_u4", VOP3_Profile<VOP_I32_I32_I32_I32, VOP3_PACKED>>;
} // End SubtargetPredicate = HasDot2Insts
let SubtargetPredicate = HasDot1Insts in {
def V_DOT4_I32_I8 : VOP3PInst<"v_dot4_i32_i8", VOP3_Profile<VOP_I32_I32_I32_I32, VOP3_PACKED>>;
def V_DOT8_I32_I4 : VOP3PInst<"v_dot8_i32_i4", VOP3_Profile<VOP_I32_I32_I32_I32, VOP3_PACKED>>;
} // End SubtargetPredicate = HasDot1Insts
multiclass DotPats<SDPatternOperator dot_op,
VOP3PInst dot_inst> {
let SubtargetPredicate = dot_inst.SubtargetPredicate in
def : GCNPat <
(dot_op (dot_inst.Pfl.Src0VT (VOP3PMods0 dot_inst.Pfl.Src0VT:$src0, i32:$src0_modifiers)),
(dot_inst.Pfl.Src1VT (VOP3PMods dot_inst.Pfl.Src1VT:$src1, i32:$src1_modifiers)),
@ -280,12 +290,14 @@ def : UDot2Pat<V_DOT2_U32_U16>;
def : SDot2Pat<V_DOT2_I32_I16>;
foreach Type = ["U", "I"] in
let SubtargetPredicate = !cast<VOP_Pseudo>("V_DOT4_"#Type#"32_"#Type#8).SubtargetPredicate in
def : GCNPat <
!cast<dag>(!foldl((i32 i32:$src2), [0, 1, 2, 3], lhs, y,
(add_oneuse lhs, (!cast<PatFrag>("Mul"#Type#"_Elt"#y) i32:$src0, i32:$src1)))),
(!cast<VOP3PInst>("V_DOT4_"#Type#"32_"#Type#8) (i32 8), $src0, (i32 8), $src1, (i32 8), $src2, (i1 0))>;
foreach Type = ["U", "I"] in
let SubtargetPredicate = !cast<VOP_Pseudo>("V_DOT8_"#Type#"32_"#Type#4).SubtargetPredicate in
def : GCNPat <
!cast<dag>(!foldl((add_oneuse i32:$src2, (!cast<PatFrag>("Mul"#Type#"0_4bit") i32:$src0, i32:$src1)),
[1, 2, 3, 4, 5, 6, 7], lhs, y,
@ -295,14 +307,13 @@ foreach Type = ["U", "I"] in
// Different variants of dot8 code-gen dag patterns are not generated through table-gen due to a huge increase
// in the compile time. Directly handle the pattern generated by the FE here.
foreach Type = ["U", "I"] in
let SubtargetPredicate = !cast<VOP_Pseudo>("V_DOT8_"#Type#"32_"#Type#4).SubtargetPredicate in
def : GCNPat <
!cast<dag>(!foldl((add_oneuse i32:$src2, (!cast<PatFrag>("Mul"#Type#"0_4bit") i32:$src0, i32:$src1)),
[7, 1, 2, 3, 4, 5, 6], lhs, y,
(NonACAdd_oneuse lhs, (!cast<PatFrag>("Mul"#Type#y#"_4bit") i32:$src0, i32:$src1)))),
(!cast<VOP3PInst>("V_DOT8_"#Type#"32_"#Type#4) (i32 8), $src0, (i32 8), $src1, (i32 8), $src2, (i1 0))>;
} // End SubtargetPredicate = HasDotInsts
multiclass VOP3P_Real_vi<bits<10> op> {
def _vi : VOP3P_Real<!cast<VOP3_Pseudo>(NAME), SIEncodingFamily.VI>,
VOP3Pe <op, !cast<VOP3_Pseudo>(NAME).Pfl> {
@ -351,14 +362,19 @@ defm V_FMA_MIXHI_F16 : VOP3P_Real_vi <0x3a2>;
}
let SubtargetPredicate = HasDotInsts in {
let SubtargetPredicate = HasDot2Insts in {
defm V_DOT2_F32_F16 : VOP3P_Real_vi <0x3a3>;
defm V_DOT2_I32_I16 : VOP3P_Real_vi <0x3a6>;
defm V_DOT2_U32_U16 : VOP3P_Real_vi <0x3a7>;
defm V_DOT4_I32_I8 : VOP3P_Real_vi <0x3a8>;
defm V_DOT4_U32_U8 : VOP3P_Real_vi <0x3a9>;
defm V_DOT8_I32_I4 : VOP3P_Real_vi <0x3aa>;
defm V_DOT8_U32_U4 : VOP3P_Real_vi <0x3ab>;
} // End SubtargetPredicate = HasDotInsts
} // End SubtargetPredicate = HasDot2Insts
let SubtargetPredicate = HasDot1Insts in {
defm V_DOT4_I32_I8 : VOP3P_Real_vi <0x3a8>;
defm V_DOT8_I32_I4 : VOP3P_Real_vi <0x3aa>;
} // End SubtargetPredicate = HasDot1Insts