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-rw-r--r--lib/Target/Mips/MipsDSPInstrInfo.td34
-rw-r--r--lib/Target/Mips/MipsInstrInfo.td11
-rw-r--r--lib/Target/Mips/MipsSEISelDAGToDAG.cpp2
-rw-r--r--lib/Target/Mips/MipsSEISelLowering.cpp5
-rw-r--r--test/CodeGen/Mips/dsp-patterns.ll113
5 files changed, 147 insertions, 18 deletions
diff --git a/lib/Target/Mips/MipsDSPInstrInfo.td b/lib/Target/Mips/MipsDSPInstrInfo.td
index 3c116e1..df8ba9d 100644
--- a/lib/Target/Mips/MipsDSPInstrInfo.td
+++ b/lib/Target/Mips/MipsDSPInstrInfo.td
@@ -515,27 +515,27 @@ class INSV_DESC_BASE<string instr_asm, SDPatternOperator OpNode,
//===----------------------------------------------------------------------===//
// Addition/subtraction
-class ADDU_QB_DESC : ADDU_QB_DESC_BASE<"addu.qb", int_mips_addu_qb, NoItinerary,
+class ADDU_QB_DESC : ADDU_QB_DESC_BASE<"addu.qb", null_frag, NoItinerary,
DSPRegs, DSPRegs>, IsCommutable;
class ADDU_S_QB_DESC : ADDU_QB_DESC_BASE<"addu_s.qb", int_mips_addu_s_qb,
NoItinerary, DSPRegs, DSPRegs>,
IsCommutable;
-class SUBU_QB_DESC : ADDU_QB_DESC_BASE<"subu.qb", int_mips_subu_qb, NoItinerary,
+class SUBU_QB_DESC : ADDU_QB_DESC_BASE<"subu.qb", null_frag, NoItinerary,
DSPRegs, DSPRegs>;
class SUBU_S_QB_DESC : ADDU_QB_DESC_BASE<"subu_s.qb", int_mips_subu_s_qb,
NoItinerary, DSPRegs, DSPRegs>;
-class ADDQ_PH_DESC : ADDU_QB_DESC_BASE<"addq.ph", int_mips_addq_ph, NoItinerary,
+class ADDQ_PH_DESC : ADDU_QB_DESC_BASE<"addq.ph", null_frag, NoItinerary,
DSPRegs, DSPRegs>, IsCommutable;
class ADDQ_S_PH_DESC : ADDU_QB_DESC_BASE<"addq_s.ph", int_mips_addq_s_ph,
NoItinerary, DSPRegs, DSPRegs>,
IsCommutable;
-class SUBQ_PH_DESC : ADDU_QB_DESC_BASE<"subq.ph", int_mips_subq_ph, NoItinerary,
+class SUBQ_PH_DESC : ADDU_QB_DESC_BASE<"subq.ph", null_frag, NoItinerary,
DSPRegs, DSPRegs>;
class SUBQ_S_PH_DESC : ADDU_QB_DESC_BASE<"subq_s.ph", int_mips_subq_s_ph,
@@ -548,10 +548,10 @@ class ADDQ_S_W_DESC : ADDU_QB_DESC_BASE<"addq_s.w", int_mips_addq_s_w,
class SUBQ_S_W_DESC : ADDU_QB_DESC_BASE<"subq_s.w", int_mips_subq_s_w,
NoItinerary, CPURegs, CPURegs>;
-class ADDSC_DESC : ADDU_QB_DESC_BASE<"addsc", int_mips_addsc, NoItinerary,
+class ADDSC_DESC : ADDU_QB_DESC_BASE<"addsc", null_frag, NoItinerary,
CPURegs, CPURegs>, IsCommutable;
-class ADDWC_DESC : ADDU_QB_DESC_BASE<"addwc", int_mips_addwc, NoItinerary,
+class ADDWC_DESC : ADDU_QB_DESC_BASE<"addwc", null_frag, NoItinerary,
CPURegs, CPURegs>,
IsCommutable, UseDSPCtrl;
@@ -951,7 +951,7 @@ class ABSQ_S_QB_DESC : ABSQ_S_PH_R2_DESC_BASE<"absq_s.qb", int_mips_absq_s_qb,
NoItinerary, DSPRegs>;
// Multiplication
-class MUL_PH_DESC : ADDUH_QB_DESC_BASE<"mul.ph", int_mips_mul_ph, NoItinerary,
+class MUL_PH_DESC : ADDUH_QB_DESC_BASE<"mul.ph", null_frag, NoItinerary,
DSPRegs>, IsCommutable;
class MUL_S_PH_DESC : ADDUH_QB_DESC_BASE<"mul_s.ph", int_mips_mul_s_ph,
@@ -1232,6 +1232,26 @@ def : DSPPat<(store (v2i16 DSPRegs:$val), addr:$a),
def : DSPPat<(store (v4i8 DSPRegs:$val), addr:$a),
(SW (COPY_TO_REGCLASS DSPRegs:$val, CPURegs), addr:$a)>;
+// Binary operations.
+class DSPBinPat<Instruction Inst, ValueType ValTy, SDPatternOperator Node,
+ Predicate Pred = HasDSP> :
+ DSPPat<(Node ValTy:$a, ValTy:$b), (Inst ValTy:$a, ValTy:$b), Pred>;
+
+def : DSPBinPat<ADDQ_PH, v2i16, int_mips_addq_ph>;
+def : DSPBinPat<ADDQ_PH, v2i16, add>;
+def : DSPBinPat<SUBQ_PH, v2i16, int_mips_subq_ph>;
+def : DSPBinPat<SUBQ_PH, v2i16, sub>;
+def : DSPBinPat<MUL_PH, v2i16, int_mips_mul_ph, HasDSPR2>;
+def : DSPBinPat<MUL_PH, v2i16, mul, HasDSPR2>;
+def : DSPBinPat<ADDU_QB, v4i8, int_mips_addu_qb>;
+def : DSPBinPat<ADDU_QB, v4i8, add>;
+def : DSPBinPat<SUBU_QB, v4i8, int_mips_subu_qb>;
+def : DSPBinPat<SUBU_QB, v4i8, sub>;
+def : DSPBinPat<ADDSC, i32, int_mips_addsc>;
+def : DSPBinPat<ADDSC, i32, addc>;
+def : DSPBinPat<ADDWC, i32, int_mips_addwc>;
+def : DSPBinPat<ADDWC, i32, adde>;
+
// Extr patterns.
class EXTR_W_TY1_R2_Pat<SDPatternOperator OpNode, Instruction Instr> :
DSPPat<(i32 (OpNode CPURegs:$rs, ACRegsDSP:$ac)),
diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index 3a82e81..44e9fb8 100644
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -179,6 +179,7 @@ def NoNaNsFPMath : Predicate<"TM.Options.NoNaNsFPMath">,
AssemblerPredicate<"FeatureMips32">;
def HasStdEnc : Predicate<"Subtarget.hasStandardEncoding()">,
AssemblerPredicate<"!FeatureMips16">;
+def NotDSP : Predicate<"!Subtarget.hasDSP()">;
class MipsPat<dag pattern, dag result> : Pat<pattern, result> {
let Predicates = [HasStdEnc];
@@ -1128,10 +1129,12 @@ def : MipsPat<(i32 imm:$imm),
// Carry MipsPatterns
def : MipsPat<(subc CPURegs:$lhs, CPURegs:$rhs),
(SUBu CPURegs:$lhs, CPURegs:$rhs)>;
-def : MipsPat<(addc CPURegs:$lhs, CPURegs:$rhs),
- (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
-def : MipsPat<(addc CPURegs:$src, immSExt16:$imm),
- (ADDiu CPURegs:$src, imm:$imm)>;
+let Predicates = [HasStdEnc, NotDSP] in {
+ def : MipsPat<(addc CPURegs:$lhs, CPURegs:$rhs),
+ (ADDu CPURegs:$lhs, CPURegs:$rhs)>;
+ def : MipsPat<(addc CPURegs:$src, immSExt16:$imm),
+ (ADDiu CPURegs:$src, imm:$imm)>;
+}
// Call
def : MipsPat<(MipsJmpLink (i32 tglobaladdr:$dst)),
diff --git a/lib/Target/Mips/MipsSEISelDAGToDAG.cpp b/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
index e0f5832..0114687 100644
--- a/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
+++ b/lib/Target/Mips/MipsSEISelDAGToDAG.cpp
@@ -303,6 +303,8 @@ std::pair<bool, SDNode*> MipsSEDAGToDAGISel::selectNode(SDNode *Node) {
}
case ISD::ADDE: {
+ if (Subtarget.hasDSP()) // Select DSP instructions, ADDSC and ADDWC.
+ break;
SDValue InFlag = Node->getOperand(2);
Result = selectAddESubE(Mips::ADDu, InFlag, InFlag.getValue(0), DL, Node);
return std::make_pair(true, Result);
diff --git a/lib/Target/Mips/MipsSEISelLowering.cpp b/lib/Target/Mips/MipsSEISelLowering.cpp
index 805228b..70ba985 100644
--- a/lib/Target/Mips/MipsSEISelLowering.cpp
+++ b/lib/Target/Mips/MipsSEISelLowering.cpp
@@ -45,12 +45,17 @@ MipsSETargetLowering::MipsSETargetLowering(MipsTargetMachine &TM)
for (unsigned Opc = 0; Opc < ISD::BUILTIN_OP_END; ++Opc)
setOperationAction(Opc, VecTys[i], Expand);
+ setOperationAction(ISD::ADD, VecTys[i], Legal);
+ setOperationAction(ISD::SUB, VecTys[i], Legal);
setOperationAction(ISD::LOAD, VecTys[i], Legal);
setOperationAction(ISD::STORE, VecTys[i], Legal);
setOperationAction(ISD::BITCAST, VecTys[i], Legal);
}
}
+ if (Subtarget->hasDSPR2())
+ setOperationAction(ISD::MUL, MVT::v2i16, Legal);
+
if (!TM.Options.UseSoftFloat) {
addRegisterClass(MVT::f32, &Mips::FGR32RegClass);
diff --git a/test/CodeGen/Mips/dsp-patterns.ll b/test/CodeGen/Mips/dsp-patterns.ll
index 0752f69..8fb86c2 100644
--- a/test/CodeGen/Mips/dsp-patterns.ll
+++ b/test/CodeGen/Mips/dsp-patterns.ll
@@ -1,7 +1,8 @@
-; RUN: llc -march=mips -mattr=dsp < %s | FileCheck %s
+; RUN: llc -march=mips -mattr=dsp < %s | FileCheck %s -check-prefix=R1
+; RUN: llc -march=mips -mattr=dspr2 < %s | FileCheck %s -check-prefix=R2
-; CHECK: test_lbux:
-; CHECK: lbux ${{[0-9]+}}
+; R1: test_lbux:
+; R1: lbux ${{[0-9]+}}
define zeroext i8 @test_lbux(i8* nocapture %b, i32 %i) {
entry:
@@ -10,8 +11,8 @@ entry:
ret i8 %0
}
-; CHECK: test_lhx:
-; CHECK: lhx ${{[0-9]+}}
+; R1: test_lhx:
+; R1: lhx ${{[0-9]+}}
define signext i16 @test_lhx(i16* nocapture %b, i32 %i) {
entry:
@@ -20,8 +21,8 @@ entry:
ret i16 %0
}
-; CHECK: test_lwx:
-; CHECK: lwx ${{[0-9]+}}
+; R1: test_lwx:
+; R1: lwx ${{[0-9]+}}
define i32 @test_lwx(i32* nocapture %b, i32 %i) {
entry:
@@ -29,3 +30,101 @@ entry:
%0 = load i32* %add.ptr, align 4
ret i32 %0
}
+
+; R1: test_add_v2q15_:
+; R1: addq.ph ${{[0-9]+}}
+
+define { i32 } @test_add_v2q15_(i32 %a.coerce, i32 %b.coerce) {
+entry:
+ %0 = bitcast i32 %a.coerce to <2 x i16>
+ %1 = bitcast i32 %b.coerce to <2 x i16>
+ %add = add <2 x i16> %0, %1
+ %2 = bitcast <2 x i16> %add to i32
+ %.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
+ ret { i32 } %.fca.0.insert
+}
+
+; R1: test_sub_v2q15_:
+; R1: subq.ph ${{[0-9]+}}
+
+define { i32 } @test_sub_v2q15_(i32 %a.coerce, i32 %b.coerce) {
+entry:
+ %0 = bitcast i32 %a.coerce to <2 x i16>
+ %1 = bitcast i32 %b.coerce to <2 x i16>
+ %sub = sub <2 x i16> %0, %1
+ %2 = bitcast <2 x i16> %sub to i32
+ %.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
+ ret { i32 } %.fca.0.insert
+}
+
+; R2: test_mul_v2q15_:
+; R2: mul.ph ${{[0-9]+}}
+
+; mul.ph is an R2 instruction. Check that multiply node gets expanded.
+; R1: test_mul_v2q15_:
+; R1: mul ${{[0-9]+}}
+; R1: mul ${{[0-9]+}}
+
+define { i32 } @test_mul_v2q15_(i32 %a.coerce, i32 %b.coerce) {
+entry:
+ %0 = bitcast i32 %a.coerce to <2 x i16>
+ %1 = bitcast i32 %b.coerce to <2 x i16>
+ %mul = mul <2 x i16> %0, %1
+ %2 = bitcast <2 x i16> %mul to i32
+ %.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
+ ret { i32 } %.fca.0.insert
+}
+
+; R1: test_add_v4i8_:
+; R1: addu.qb ${{[0-9]+}}
+
+define { i32 } @test_add_v4i8_(i32 %a.coerce, i32 %b.coerce) {
+entry:
+ %0 = bitcast i32 %a.coerce to <4 x i8>
+ %1 = bitcast i32 %b.coerce to <4 x i8>
+ %add = add <4 x i8> %0, %1
+ %2 = bitcast <4 x i8> %add to i32
+ %.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
+ ret { i32 } %.fca.0.insert
+}
+
+; R1: test_sub_v4i8_:
+; R1: subu.qb ${{[0-9]+}}
+
+define { i32 } @test_sub_v4i8_(i32 %a.coerce, i32 %b.coerce) {
+entry:
+ %0 = bitcast i32 %a.coerce to <4 x i8>
+ %1 = bitcast i32 %b.coerce to <4 x i8>
+ %sub = sub <4 x i8> %0, %1
+ %2 = bitcast <4 x i8> %sub to i32
+ %.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
+ ret { i32 } %.fca.0.insert
+}
+
+; DSP-ASE doesn't have a v4i8 multiply instruction. Check that multiply node gets expanded.
+; R2: test_mul_v4i8_:
+; R2: mul ${{[0-9]+}}
+; R2: mul ${{[0-9]+}}
+; R2: mul ${{[0-9]+}}
+; R2: mul ${{[0-9]+}}
+
+define { i32 } @test_mul_v4i8_(i32 %a.coerce, i32 %b.coerce) {
+entry:
+ %0 = bitcast i32 %a.coerce to <4 x i8>
+ %1 = bitcast i32 %b.coerce to <4 x i8>
+ %mul = mul <4 x i8> %0, %1
+ %2 = bitcast <4 x i8> %mul to i32
+ %.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
+ ret { i32 } %.fca.0.insert
+}
+
+; R1: test_addsc:
+; R1: addsc ${{[0-9]+}}
+; R1: addwc ${{[0-9]+}}
+
+define i64 @test_addsc(i64 %a, i64 %b) {
+entry:
+ %add = add nsw i64 %b, %a
+ ret i64 %add
+}
+
generated by cgit v1.1 at 2025-01-13 09:35:15 +0000