def Alpha_cvttq : SDNode<"AlphaISD::CVTTQ_" , SDTFPUnaryOp, []>;
def Alpha_gprello : SDNode<"AlphaISD::GPRelLo", SDTIntBinOp, []>;
def Alpha_gprelhi : SDNode<"AlphaISD::GPRelHi", SDTIntBinOp, []>;
-def Alpha_rellit : SDNode<"AlphaISD::RelLit", SDTIntBinOp, []>;
+def Alpha_rellit : SDNode<"AlphaISD::RelLit", SDTIntBinOp, [SDNPMayLoad]>;
-def retflag : SDNode<"AlphaISD::RET_FLAG", SDTRet,
- [SDNPHasChain, SDNPOptInFlag]>;
+def retflag : SDNode<"AlphaISD::RET_FLAG", SDTNone,
+ [SDNPHasChain, SDNPOptInFlag]>;
// These are target-independent nodes, but have target-specific formats.
def SDT_AlphaCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i64> ]>;
SDTCisVT<1, i64> ]>;
def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_AlphaCallSeqStart,
- [SDNPHasChain, SDNPOutFlag]>;
+ [SDNPHasChain, SDNPOutFlag]>;
def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_AlphaCallSeqEnd,
[SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
//Paterns for matching
//********************
def invX : SDNodeXForm<imm, [{ //invert
- return getI64Imm(~N->getValue());
+ return getI64Imm(~N->getZExtValue());
}]>;
def negX : SDNodeXForm<imm, [{ //negate
- return getI64Imm(~N->getValue() + 1);
+ return getI64Imm(~N->getZExtValue() + 1);
}]>;
def SExt32 : SDNodeXForm<imm, [{ //signed extend int to long
- return getI64Imm(((int64_t)N->getValue() << 32) >> 32);
+ return getI64Imm(((int64_t)N->getZExtValue() << 32) >> 32);
}]>;
def SExt16 : SDNodeXForm<imm, [{ //signed extend int to long
- return getI64Imm(((int64_t)N->getValue() << 48) >> 48);
+ return getI64Imm(((int64_t)N->getZExtValue() << 48) >> 48);
}]>;
def LL16 : SDNodeXForm<imm, [{ //lda part of constant
- return getI64Imm(get_lda16(N->getValue()));
+ return getI64Imm(get_lda16(N->getZExtValue()));
}]>;
def LH16 : SDNodeXForm<imm, [{ //ldah part of constant (or more if too big)
- return getI64Imm(get_ldah16(N->getValue()));
+ return getI64Imm(get_ldah16(N->getZExtValue()));
}]>;
def iZAPX : SDNodeXForm<and, [{ // get imm to ZAPi
ConstantSDNode *RHS = cast<ConstantSDNode>(N->getOperand(1));
- return getI64Imm(get_zapImm(SDOperand(), RHS->getValue()));
+ return getI64Imm(get_zapImm(SDValue(), RHS->getZExtValue()));
}]>;
def nearP2X : SDNodeXForm<imm, [{
- return getI64Imm(Log2_64(getNearPower2((uint64_t)N->getValue())));
+ return getI64Imm(Log2_64(getNearPower2((uint64_t)N->getZExtValue())));
}]>;
def nearP2RemX : SDNodeXForm<imm, [{
- uint64_t x = abs(N->getValue() - getNearPower2((uint64_t)N->getValue()));
+ uint64_t x =
+ abs64(N->getZExtValue() - getNearPower2((uint64_t)N->getZExtValue()));
return getI64Imm(Log2_64(x));
}]>;
def immUExt8 : PatLeaf<(imm), [{ //imm fits in 8 bit zero extended field
- return (uint64_t)N->getValue() == (uint8_t)N->getValue();
+ return (uint64_t)N->getZExtValue() == (uint8_t)N->getZExtValue();
}]>;
def immUExt8inv : PatLeaf<(imm), [{ //inverted imm fits in 8 bit zero extended field
- return (uint64_t)~N->getValue() == (uint8_t)~N->getValue();
+ return (uint64_t)~N->getZExtValue() == (uint8_t)~N->getZExtValue();
}], invX>;
def immUExt8neg : PatLeaf<(imm), [{ //negated imm fits in 8 bit zero extended field
- return ((uint64_t)~N->getValue() + 1) == (uint8_t)((uint64_t)~N->getValue() + 1);
+ return ((uint64_t)~N->getZExtValue() + 1) ==
+ (uint8_t)((uint64_t)~N->getZExtValue() + 1);
}], negX>;
def immSExt16 : PatLeaf<(imm), [{ //imm fits in 16 bit sign extended field
- return ((int64_t)N->getValue() << 48) >> 48 == (int64_t)N->getValue();
+ return ((int64_t)N->getZExtValue() << 48) >> 48 ==
+ (int64_t)N->getZExtValue();
}]>;
def immSExt16int : PatLeaf<(imm), [{ //(int)imm fits in a 16 bit sign extended field
- return ((int64_t)N->getValue() << 48) >> 48 == ((int64_t)N->getValue() << 32) >> 32;
+ return ((int64_t)N->getZExtValue() << 48) >> 48 ==
+ ((int64_t)N->getZExtValue() << 32) >> 32;
}], SExt16>;
-def zappat : PatFrag<(ops node:$LHS), (and node:$LHS, imm:$L), [{
- if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N->getOperand(1))) {
- uint64_t build = get_zapImm(N->getOperand(0), (uint64_t)RHS->getValue());
- return build != 0;
- }
- return false;
+def zappat : PatFrag<(ops node:$LHS), (and node:$LHS, imm), [{
+ ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N->getOperand(1));
+ if (!RHS) return 0;
+ uint64_t build = get_zapImm(N->getOperand(0), (uint64_t)RHS->getZExtValue());
+ return build != 0;
}]>;
def immFPZ : PatLeaf<(fpimm), [{ //the only fpconstant nodes are +/- 0.0
return true;
}]>;
-def immRem1 : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),1, 0);}]>;
-def immRem2 : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),2, 0);}]>;
-def immRem3 : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),3, 0);}]>;
-def immRem4 : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),4, 0);}]>;
-def immRem5 : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),5, 0);}]>;
-def immRem1n : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),1, 1);}]>;
-def immRem2n : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),2, 1);}]>;
-def immRem3n : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),3, 1);}]>;
-def immRem4n : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),4, 1);}]>;
-def immRem5n : PatLeaf<(imm), [{return chkRemNearPower2(N->getValue(),5, 1);}]>;
+def immRem1 :PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),1,0);}]>;
+def immRem2 :PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),2,0);}]>;
+def immRem3 :PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),3,0);}]>;
+def immRem4 :PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),4,0);}]>;
+def immRem5 :PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),5,0);}]>;
+def immRem1n:PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),1,1);}]>;
+def immRem2n:PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),2,1);}]>;
+def immRem3n:PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),3,1);}]>;
+def immRem4n:PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),4,1);}]>;
+def immRem5n:PatLeaf<(imm),[{return chkRemNearPower2(N->getZExtValue(),5,1);}]>;
def immRemP2n : PatLeaf<(imm), [{
- return isPowerOf2_64(getNearPower2((uint64_t)N->getValue()) - N->getValue());
+ return isPowerOf2_64(getNearPower2((uint64_t)N->getZExtValue()) -
+ N->getZExtValue());
}]>;
def immRemP2 : PatLeaf<(imm), [{
- return isPowerOf2_64(N->getValue() - getNearPower2((uint64_t)N->getValue()));
+ return isPowerOf2_64(N->getZExtValue() -
+ getNearPower2((uint64_t)N->getZExtValue()));
}]>;
def immUExt8ME : PatLeaf<(imm), [{ //use this imm for mulqi
- int64_t d = abs((int64_t)N->getValue() - (int64_t)getNearPower2((uint64_t)N->getValue()));
+ int64_t d = abs64((int64_t)N->getZExtValue() -
+ (int64_t)getNearPower2((uint64_t)N->getZExtValue()));
if (isPowerOf2_64(d)) return false;
switch (d) {
case 1: case 3: case 5: return false;
- default: return (uint64_t)N->getValue() == (uint8_t)N->getValue();
+ default: return (uint64_t)N->getZExtValue() == (uint8_t)N->getZExtValue();
};
}]>;
//Pseudo ops for selection
-let isImplicitDef = 1 in {
-def IDEF_I : PseudoInstAlpha<(outs GPRC:$RA), (ins), ";#idef $RA",
- [(set GPRC:$RA, (undef))], s_pseudo>;
-def IDEF_F32 : PseudoInstAlpha<(outs F4RC:$RA), (ins), ";#idef $RA",
- [(set F4RC:$RA, (undef))], s_pseudo>;
-def IDEF_F64 : PseudoInstAlpha<(outs F8RC:$RA), (ins), ";#idef $RA",
- [(set F8RC:$RA, (undef))], s_pseudo>;
-}
-
def WTF : PseudoInstAlpha<(outs), (ins variable_ops), "#wtf", [], s_pseudo>;
-let isLoad = 1, hasCtrlDep = 1, Defs = [R30], Uses = [R30] in {
+let hasCtrlDep = 1, Defs = [R30], Uses = [R30] in {
def ADJUSTSTACKUP : PseudoInstAlpha<(outs), (ins s64imm:$amt),
"; ADJUP $amt",
- [(callseq_start imm:$amt)], s_pseudo>;
+ [(callseq_start timm:$amt)], s_pseudo>;
def ADJUSTSTACKDOWN : PseudoInstAlpha<(outs), (ins s64imm:$amt1, s64imm:$amt2),
"; ADJDOWN $amt1",
- [(callseq_end imm:$amt1, imm:$amt2)], s_pseudo>;
+ [(callseq_end timm:$amt1, timm:$amt2)], s_pseudo>;
}
def ALTENT : PseudoInstAlpha<(outs), (ins s64imm:$TARGET), "$$$TARGET..ng:\n", [], s_pseudo>;
"LSMARKER$$$i$$$j$$$k$$$m:", [], s_pseudo>;
+let usesCustomInserter = 1 in { // Expanded after instruction selection.
+def CAS32 : PseudoInstAlpha<(outs GPRC:$dst), (ins GPRC:$ptr, GPRC:$cmp, GPRC:$swp), "",
+ [(set GPRC:$dst, (atomic_cmp_swap_32 GPRC:$ptr, GPRC:$cmp, GPRC:$swp))], s_pseudo>;
+def CAS64 : PseudoInstAlpha<(outs GPRC:$dst), (ins GPRC:$ptr, GPRC:$cmp, GPRC:$swp), "",
+ [(set GPRC:$dst, (atomic_cmp_swap_64 GPRC:$ptr, GPRC:$cmp, GPRC:$swp))], s_pseudo>;
+
+def LAS32 : PseudoInstAlpha<(outs GPRC:$dst), (ins GPRC:$ptr, GPRC:$swp), "",
+ [(set GPRC:$dst, (atomic_load_add_32 GPRC:$ptr, GPRC:$swp))], s_pseudo>;
+def LAS64 :PseudoInstAlpha<(outs GPRC:$dst), (ins GPRC:$ptr, GPRC:$swp), "",
+ [(set GPRC:$dst, (atomic_load_add_64 GPRC:$ptr, GPRC:$swp))], s_pseudo>;
+
+def SWAP32 : PseudoInstAlpha<(outs GPRC:$dst), (ins GPRC:$ptr, GPRC:$swp), "",
+ [(set GPRC:$dst, (atomic_swap_32 GPRC:$ptr, GPRC:$swp))], s_pseudo>;
+def SWAP64 :PseudoInstAlpha<(outs GPRC:$dst), (ins GPRC:$ptr, GPRC:$swp), "",
+ [(set GPRC:$dst, (atomic_swap_64 GPRC:$ptr, GPRC:$swp))], s_pseudo>;
+}
+
//***********************
//Real instructions
//***********************
def ZAPNOTi : OFormL<0x12, 0x31, "zapnot $RA,$L,$RC", [], s_ishf>;
// Define the pattern that produces ZAPNOTi.
-def : Pat<(i64 (zappat GPRC:$RA):$imm),
+def : Pat<(zappat:$imm GPRC:$RA),
(ZAPNOTi GPRC:$RA, (iZAPX GPRC:$imm))>;
def : Pat<(setune GPRC:$X, immUExt8:$Y), (CMPEQi (CMPEQ GPRC:$X, immUExt8:$Y), 0)>;
-let isReturn = 1, isTerminator = 1, Ra = 31, Rb = 26, disp = 1, Uses = [R26] in {
- def RETDAG : MbrForm< 0x1A, 0x02, (ops), "ret $$31,($$26),1", s_jsr>; //Return from subroutine
- def RETDAGp : MbrpForm< 0x1A, 0x02, (ops), "ret $$31,($$26),1", [(retflag)], s_jsr>; //Return from subroutine
+let isReturn = 1, isTerminator = 1, isBarrier = 1, Ra = 31, Rb = 26, disp = 1, Uses = [R26] in {
+ def RETDAG : MbrForm< 0x1A, 0x02, (ins), "ret $$31,($$26),1", s_jsr>; //Return from subroutine
+ def RETDAGp : MbrpForm< 0x1A, 0x02, (ins), "ret $$31,($$26),1", [(retflag)], s_jsr>; //Return from subroutine
}
let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1, Ra = 31, disp = 0 in
-def JMP : MbrpForm< 0x1A, 0x00, (ops GPRC:$RS), "jmp $$31,($RS),0",
+def JMP : MbrpForm< 0x1A, 0x00, (ins GPRC:$RS), "jmp $$31,($RS),0",
[(brind GPRC:$RS)], s_jsr>; //Jump
let isCall = 1, Ra = 26,
F0, F1,
F10, F11, F12, F13, F14, F15, F16, F17, F18, F19,
F20, F21, F22, F23, F24, F25, F26, F27, F28, F29, F30], Uses = [R27, R29] in {
- def JSR : MbrForm< 0x1A, 0x01, (ops ), "jsr $$26,($$27),0", s_jsr>; //Jump to subroutine
+ def JSR : MbrForm< 0x1A, 0x01, (ins), "jsr $$26,($$27),0", s_jsr>; //Jump to subroutine
}
let isCall = 1, Ra = 23, Rb = 27, disp = 0,
Defs = [R23, R24, R25, R27, R28], Uses = [R24, R25, R27] in
- def JSRs : MbrForm< 0x1A, 0x01, (ops ), "jsr $$23,($$27),0", s_jsr>; //Jump to div or rem
+ def JSRs : MbrForm< 0x1A, 0x01, (ins), "jsr $$23,($$27),0", s_jsr>; //Jump to div or rem
-def JSR_COROUTINE : MbrForm< 0x1A, 0x03, (ops GPRC:$RD, GPRC:$RS, s14imm:$DISP), "jsr_coroutine $RD,($RS),$DISP", s_jsr>; //Jump to subroutine return
+def JSR_COROUTINE : MbrForm< 0x1A, 0x03, (ins GPRC:$RD, GPRC:$RS, s14imm:$DISP), "jsr_coroutine $RD,($RS),$DISP", s_jsr>; //Jump to subroutine return
-let OutOperandList = (ops GPRC:$RA), InOperandList = (ops s64imm:$DISP, GPRC:$RB) in {
-def LDQ : MForm<0x29, 0, 1, "ldq $RA,$DISP($RB)",
+let OutOperandList = (outs GPRC:$RA), InOperandList = (ins s64imm:$DISP, GPRC:$RB) in {
+def LDQ : MForm<0x29, 1, "ldq $RA,$DISP($RB)",
[(set GPRC:$RA, (load (add GPRC:$RB, immSExt16:$DISP)))], s_ild>;
-def LDQr : MForm<0x29, 0, 1, "ldq $RA,$DISP($RB)\t\t!gprellow",
+def LDQr : MForm<0x29, 1, "ldq $RA,$DISP($RB)\t\t!gprellow",
[(set GPRC:$RA, (load (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB)))], s_ild>;
-def LDL : MForm<0x28, 0, 1, "ldl $RA,$DISP($RB)",
+def LDL : MForm<0x28, 1, "ldl $RA,$DISP($RB)",
[(set GPRC:$RA, (sextloadi32 (add GPRC:$RB, immSExt16:$DISP)))], s_ild>;
-def LDLr : MForm<0x28, 0, 1, "ldl $RA,$DISP($RB)\t\t!gprellow",
+def LDLr : MForm<0x28, 1, "ldl $RA,$DISP($RB)\t\t!gprellow",
[(set GPRC:$RA, (sextloadi32 (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB)))], s_ild>;
-def LDBU : MForm<0x0A, 0, 1, "ldbu $RA,$DISP($RB)",
+def LDBU : MForm<0x0A, 1, "ldbu $RA,$DISP($RB)",
[(set GPRC:$RA, (zextloadi8 (add GPRC:$RB, immSExt16:$DISP)))], s_ild>;
-def LDBUr : MForm<0x0A, 0, 1, "ldbu $RA,$DISP($RB)\t\t!gprellow",
+def LDBUr : MForm<0x0A, 1, "ldbu $RA,$DISP($RB)\t\t!gprellow",
[(set GPRC:$RA, (zextloadi8 (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB)))], s_ild>;
-def LDWU : MForm<0x0C, 0, 1, "ldwu $RA,$DISP($RB)",
+def LDWU : MForm<0x0C, 1, "ldwu $RA,$DISP($RB)",
[(set GPRC:$RA, (zextloadi16 (add GPRC:$RB, immSExt16:$DISP)))], s_ild>;
-def LDWUr : MForm<0x0C, 0, 1, "ldwu $RA,$DISP($RB)\t\t!gprellow",
+def LDWUr : MForm<0x0C, 1, "ldwu $RA,$DISP($RB)\t\t!gprellow",
[(set GPRC:$RA, (zextloadi16 (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB)))], s_ild>;
}
-let OutOperandList = (ops), InOperandList = (ops GPRC:$RA, s64imm:$DISP, GPRC:$RB) in {
-def STB : MForm<0x0E, 1, 0, "stb $RA,$DISP($RB)",
- [(truncstorei8 GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_ist>;
-def STBr : MForm<0x0E, 1, 0, "stb $RA,$DISP($RB)\t\t!gprellow",
- [(truncstorei8 GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_ist>;
-def STW : MForm<0x0D, 1, 0, "stw $RA,$DISP($RB)",
- [(truncstorei16 GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_ist>;
-def STWr : MForm<0x0D, 1, 0, "stw $RA,$DISP($RB)\t\t!gprellow",
- [(truncstorei16 GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_ist>;
-def STL : MForm<0x2C, 1, 0, "stl $RA,$DISP($RB)",
- [(truncstorei32 GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_ist>;
-def STLr : MForm<0x2C, 1, 0, "stl $RA,$DISP($RB)\t\t!gprellow",
- [(truncstorei32 GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_ist>;
-def STQ : MForm<0x2D, 1, 0, "stq $RA,$DISP($RB)",
- [(store GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_ist>;
-def STQr : MForm<0x2D, 1, 0, "stq $RA,$DISP($RB)\t\t!gprellow",
- [(store GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_ist>;
+let OutOperandList = (outs), InOperandList = (ins GPRC:$RA, s64imm:$DISP, GPRC:$RB) in {
+def STB : MForm<0x0E, 0, "stb $RA,$DISP($RB)",
+ [(truncstorei8 GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_ist>;
+def STBr : MForm<0x0E, 0, "stb $RA,$DISP($RB)\t\t!gprellow",
+ [(truncstorei8 GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_ist>;
+def STW : MForm<0x0D, 0, "stw $RA,$DISP($RB)",
+ [(truncstorei16 GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_ist>;
+def STWr : MForm<0x0D, 0, "stw $RA,$DISP($RB)\t\t!gprellow",
+ [(truncstorei16 GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_ist>;
+def STL : MForm<0x2C, 0, "stl $RA,$DISP($RB)",
+ [(truncstorei32 GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_ist>;
+def STLr : MForm<0x2C, 0, "stl $RA,$DISP($RB)\t\t!gprellow",
+ [(truncstorei32 GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_ist>;
+def STQ : MForm<0x2D, 0, "stq $RA,$DISP($RB)",
+ [(store GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_ist>;
+def STQr : MForm<0x2D, 0, "stq $RA,$DISP($RB)\t\t!gprellow",
+ [(store GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_ist>;
}
//Load address
-let OutOperandList = (ops GPRC:$RA), InOperandList = (ops s64imm:$DISP, GPRC:$RB) in {
-def LDA : MForm<0x08, 0, 0, "lda $RA,$DISP($RB)",
+let OutOperandList = (outs GPRC:$RA), InOperandList = (ins s64imm:$DISP, GPRC:$RB) in {
+def LDA : MForm<0x08, 0, "lda $RA,$DISP($RB)",
[(set GPRC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_lda>;
-def LDAr : MForm<0x08, 0, 0, "lda $RA,$DISP($RB)\t\t!gprellow",
+def LDAr : MForm<0x08, 0, "lda $RA,$DISP($RB)\t\t!gprellow",
[(set GPRC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_lda>; //Load address
-def LDAH : MForm<0x09, 0, 0, "ldah $RA,$DISP($RB)",
+def LDAH : MForm<0x09, 0, "ldah $RA,$DISP($RB)",
[], s_lda>; //Load address high
-def LDAHr : MForm<0x09, 0, 0, "ldah $RA,$DISP($RB)\t\t!gprelhigh",
+def LDAHr : MForm<0x09, 0, "ldah $RA,$DISP($RB)\t\t!gprelhigh",
[(set GPRC:$RA, (Alpha_gprelhi tglobaladdr:$DISP, GPRC:$RB))], s_lda>; //Load address high
}
-let OutOperandList = (ops), InOperandList = (ops F4RC:$RA, s64imm:$DISP, GPRC:$RB) in {
-def STS : MForm<0x26, 1, 0, "sts $RA,$DISP($RB)",
- [(store F4RC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_fst>;
-def STSr : MForm<0x26, 1, 0, "sts $RA,$DISP($RB)\t\t!gprellow",
- [(store F4RC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_fst>;
+let OutOperandList = (outs), InOperandList = (ins F4RC:$RA, s64imm:$DISP, GPRC:$RB) in {
+def STS : MForm<0x26, 0, "sts $RA,$DISP($RB)",
+ [(store F4RC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_fst>;
+def STSr : MForm<0x26, 0, "sts $RA,$DISP($RB)\t\t!gprellow",
+ [(store F4RC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_fst>;
}
-let OutOperandList = (ops F4RC:$RA), InOperandList = (ops s64imm:$DISP, GPRC:$RB) in {
-def LDS : MForm<0x22, 0, 1, "lds $RA,$DISP($RB)",
- [(set F4RC:$RA, (load (add GPRC:$RB, immSExt16:$DISP)))], s_fld>;
-def LDSr : MForm<0x22, 0, 1, "lds $RA,$DISP($RB)\t\t!gprellow",
- [(set F4RC:$RA, (load (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB)))], s_fld>;
+let OutOperandList = (outs F4RC:$RA), InOperandList = (ins s64imm:$DISP, GPRC:$RB) in {
+def LDS : MForm<0x22, 1, "lds $RA,$DISP($RB)",
+ [(set F4RC:$RA, (load (add GPRC:$RB, immSExt16:$DISP)))], s_fld>;
+def LDSr : MForm<0x22, 1, "lds $RA,$DISP($RB)\t\t!gprellow",
+ [(set F4RC:$RA, (load (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB)))], s_fld>;
}
-let OutOperandList = (ops), InOperandList = (ops F8RC:$RA, s64imm:$DISP, GPRC:$RB) in {
-def STT : MForm<0x27, 1, 0, "stt $RA,$DISP($RB)",
- [(store F8RC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_fst>;
-def STTr : MForm<0x27, 1, 0, "stt $RA,$DISP($RB)\t\t!gprellow",
- [(store F8RC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_fst>;
+let OutOperandList = (outs), InOperandList = (ins F8RC:$RA, s64imm:$DISP, GPRC:$RB) in {
+def STT : MForm<0x27, 0, "stt $RA,$DISP($RB)",
+ [(store F8RC:$RA, (add GPRC:$RB, immSExt16:$DISP))], s_fst>;
+def STTr : MForm<0x27, 0, "stt $RA,$DISP($RB)\t\t!gprellow",
+ [(store F8RC:$RA, (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB))], s_fst>;
}
-let OutOperandList = (ops F8RC:$RA), InOperandList = (ops s64imm:$DISP, GPRC:$RB) in {
-def LDT : MForm<0x23, 0, 1, "ldt $RA,$DISP($RB)",
- [(set F8RC:$RA, (load (add GPRC:$RB, immSExt16:$DISP)))], s_fld>;
-def LDTr : MForm<0x23, 0, 1, "ldt $RA,$DISP($RB)\t\t!gprellow",
- [(set F8RC:$RA, (load (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB)))], s_fld>;
+let OutOperandList = (outs F8RC:$RA), InOperandList = (ins s64imm:$DISP, GPRC:$RB) in {
+def LDT : MForm<0x23, 1, "ldt $RA,$DISP($RB)",
+ [(set F8RC:$RA, (load (add GPRC:$RB, immSExt16:$DISP)))], s_fld>;
+def LDTr : MForm<0x23, 1, "ldt $RA,$DISP($RB)\t\t!gprellow",
+ [(set F8RC:$RA, (load (Alpha_gprello tglobaladdr:$DISP, GPRC:$RB)))], s_fld>;
}
//load address, rellocated gpdist form
-let OutOperandList = (ops GPRC:$RA), InOperandList = (ops s16imm:$DISP, GPRC:$RB, s16imm:$NUM) in {
-def LDAg : MForm<0x08, 0, 1, "lda $RA,0($RB)\t\t!gpdisp!$NUM", [], s_lda>; //Load address
-def LDAHg : MForm<0x09, 0, 1, "ldah $RA,0($RB)\t\t!gpdisp!$NUM", [], s_lda>; //Load address
+let OutOperandList = (outs GPRC:$RA),
+ InOperandList = (ins s16imm:$DISP, GPRC:$RB, s16imm:$NUM),
+ mayLoad = 1 in {
+def LDAg : MForm<0x08, 1, "lda $RA,0($RB)\t\t!gpdisp!$NUM", [], s_lda>; //Load address
+def LDAHg : MForm<0x09, 1, "ldah $RA,0($RB)\t\t!gpdisp!$NUM", [], s_lda>; //Load address
}
//Load quad, rellocated literal form
-let OutOperandList = (ops GPRC:$RA), InOperandList = (ops s64imm:$DISP, GPRC:$RB) in
-def LDQl : MForm<0x29, 0, 1, "ldq $RA,$DISP($RB)\t\t!literal",
+let OutOperandList = (outs GPRC:$RA), InOperandList = (ins s64imm:$DISP, GPRC:$RB) in
+def LDQl : MForm<0x29, 1, "ldq $RA,$DISP($RB)\t\t!literal",
[(set GPRC:$RA, (Alpha_rellit tglobaladdr:$DISP, GPRC:$RB))], s_ild>;
def : Pat<(Alpha_rellit texternalsym:$ext, GPRC:$RB),
(LDQl texternalsym:$ext, GPRC:$RB)>;
+let OutOperandList = (outs GPRC:$RR),
+ InOperandList = (ins GPRC:$RA, s64imm:$DISP, GPRC:$RB),
+ Constraints = "$RA = $RR",
+ DisableEncoding = "$RR" in {
+def STQ_C : MForm<0x2F, 0, "stq_l $RA,$DISP($RB)", [], s_ist>;
+def STL_C : MForm<0x2E, 0, "stl_l $RA,$DISP($RB)", [], s_ist>;
+}
+let OutOperandList = (outs GPRC:$RA),
+ InOperandList = (ins s64imm:$DISP, GPRC:$RB),
+ mayLoad = 1 in {
+def LDQ_L : MForm<0x2B, 1, "ldq_l $RA,$DISP($RB)", [], s_ild>;
+def LDL_L : MForm<0x2A, 1, "ldl_l $RA,$DISP($RB)", [], s_ild>;
+}
def RPCC : MfcForm<0x18, 0xC000, "rpcc $RA", s_rpcc>; //Read process cycle counter
+def MB : MfcPForm<0x18, 0x4000, "mb", s_imisc>; //memory barrier
+def WMB : MfcPForm<0x18, 0x4400, "wmb", s_imisc>; //write memory barrier
+
+def : Pat<(membarrier (i64 imm), (i64 imm), (i64 imm), (i64 1), (i64 imm)),
+ (WMB)>;
+def : Pat<(membarrier (i64 imm), (i64 imm), (i64 imm), (i64 imm), (i64 imm)),
+ (MB)>;
//Basic Floating point ops
//Floats
-let OutOperandList = (ops F4RC:$RC), InOperandList = (ops F4RC:$RB), Fa = 31 in
+let OutOperandList = (outs F4RC:$RC), InOperandList = (ins F4RC:$RB), Fa = 31 in
def SQRTS : FPForm<0x14, 0x58B, "sqrts/su $RB,$RC",
[(set F4RC:$RC, (fsqrt F4RC:$RB))], s_fsqrts>;
-let OutOperandList = (ops F4RC:$RC), InOperandList = (ops F4RC:$RA, F4RC:$RB) in {
+let OutOperandList = (outs F4RC:$RC), InOperandList = (ins F4RC:$RA, F4RC:$RB) in {
def ADDS : FPForm<0x16, 0x580, "adds/su $RA,$RB,$RC",
[(set F4RC:$RC, (fadd F4RC:$RA, F4RC:$RB))], s_fadd>;
def SUBS : FPForm<0x16, 0x581, "subs/su $RA,$RB,$RC",
//Doubles
-let OutOperandList = (ops F8RC:$RC), InOperandList = (ops F8RC:$RB), Fa = 31 in
+let OutOperandList = (outs F8RC:$RC), InOperandList = (ins F8RC:$RB), Fa = 31 in
def SQRTT : FPForm<0x14, 0x5AB, "sqrtt/su $RB,$RC",
[(set F8RC:$RC, (fsqrt F8RC:$RB))], s_fsqrtt>;
-let OutOperandList = (ops F8RC:$RC), InOperandList = (ops F8RC:$RA, F8RC:$RB) in {
+let OutOperandList = (outs F8RC:$RC), InOperandList = (ins F8RC:$RA, F8RC:$RB) in {
def ADDT : FPForm<0x16, 0x5A0, "addt/su $RA,$RB,$RC",
[(set F8RC:$RC, (fadd F8RC:$RA, F8RC:$RB))], s_fadd>;
def SUBT : FPForm<0x16, 0x5A1, "subt/su $RA,$RB,$RC",
}
//More CPYS forms:
-let OutOperandList = (ops F8RC:$RC), InOperandList = (ops F4RC:$RA, F8RC:$RB) in {
+let OutOperandList = (outs F8RC:$RC), InOperandList = (ins F4RC:$RA, F8RC:$RB) in {
def CPYSTs : FPForm<0x17, 0x020, "cpys $RA,$RB,$RC",
[(set F8RC:$RC, (fcopysign F8RC:$RB, F4RC:$RA))], s_fadd>;
def CPYSNTs : FPForm<0x17, 0x021, "cpysn $RA,$RB,$RC",
[(set F8RC:$RC, (fneg (fcopysign F8RC:$RB, F4RC:$RA)))], s_fadd>;
}
-let OutOperandList = (ops F4RC:$RC), InOperandList = (ops F8RC:$RA, F4RC:$RB) in {
+let OutOperandList = (outs F4RC:$RC), InOperandList = (ins F8RC:$RA, F4RC:$RB) in {
def CPYSSt : FPForm<0x17, 0x020, "cpys $RA,$RB,$RC",
[(set F4RC:$RC, (fcopysign F4RC:$RB, F8RC:$RA))], s_fadd>;
def CPYSESt : FPForm<0x17, 0x022, "cpyse $RA,$RB,$RC",[], s_fadd>; //Copy sign and exponent
}
//conditional moves, floats
-let OutOperandList = (ops F4RC:$RDEST), InOperandList = (ops F4RC:$RFALSE, F4RC:$RTRUE, F8RC:$RCOND),
- isTwoAddress = 1 in {
-def FCMOVEQS : FPForm<0x17, 0x02A, "fcmoveq $RCOND,$RTRUE,$RDEST",[], s_fcmov>; //FCMOVE if = zero
-def FCMOVGES : FPForm<0x17, 0x02D, "fcmovge $RCOND,$RTRUE,$RDEST",[], s_fcmov>; //FCMOVE if >= zero
-def FCMOVGTS : FPForm<0x17, 0x02F, "fcmovgt $RCOND,$RTRUE,$RDEST",[], s_fcmov>; //FCMOVE if > zero
-def FCMOVLES : FPForm<0x17, 0x02E, "fcmovle $RCOND,$RTRUE,$RDEST",[], s_fcmov>; //FCMOVE if <= zero
-def FCMOVLTS : FPForm<0x17, 0x02C, "fcmovlt $RCOND,$RTRUE,$RDEST",[], s_fcmov>; // FCMOVE if < zero
-def FCMOVNES : FPForm<0x17, 0x02B, "fcmovne $RCOND,$RTRUE,$RDEST",[], s_fcmov>; //FCMOVE if != zero
+let OutOperandList = (outs F4RC:$RDEST),
+ InOperandList = (ins F4RC:$RFALSE, F4RC:$RTRUE, F8RC:$RCOND),
+ Constraints = "$RTRUE = $RDEST" in {
+def FCMOVEQS : FPForm<0x17, 0x02A,
+ "fcmoveq $RCOND,$RTRUE,$RDEST",
+ [], s_fcmov>; //FCMOVE if = zero
+def FCMOVGES : FPForm<0x17, 0x02D,
+ "fcmovge $RCOND,$RTRUE,$RDEST",
+ [], s_fcmov>; //FCMOVE if >= zero
+def FCMOVGTS : FPForm<0x17, 0x02F,
+ "fcmovgt $RCOND,$RTRUE,$RDEST",
+ [], s_fcmov>; //FCMOVE if > zero
+def FCMOVLES : FPForm<0x17, 0x02E,
+ "fcmovle $RCOND,$RTRUE,$RDEST",
+ [], s_fcmov>; //FCMOVE if <= zero
+def FCMOVLTS : FPForm<0x17, 0x02C,
+ "fcmovlt $RCOND,$RTRUE,$RDEST",
+ [], s_fcmov>; // FCMOVE if < zero
+def FCMOVNES : FPForm<0x17, 0x02B,
+ "fcmovne $RCOND,$RTRUE,$RDEST",
+ [], s_fcmov>; //FCMOVE if != zero
}
//conditional moves, doubles
-let OutOperandList = (ops F8RC:$RDEST), InOperandList = (ops F8RC:$RFALSE, F8RC:$RTRUE, F8RC:$RCOND),
- isTwoAddress = 1 in {
+let OutOperandList = (outs F8RC:$RDEST),
+ InOperandList = (ins F8RC:$RFALSE, F8RC:$RTRUE, F8RC:$RCOND),
+ Constraints = "$RTRUE = $RDEST" in {
def FCMOVEQT : FPForm<0x17, 0x02A, "fcmoveq $RCOND,$RTRUE,$RDEST", [], s_fcmov>;
def FCMOVGET : FPForm<0x17, 0x02D, "fcmovge $RCOND,$RTRUE,$RDEST", [], s_fcmov>;
def FCMOVGTT : FPForm<0x17, 0x02F, "fcmovgt $RCOND,$RTRUE,$RDEST", [], s_fcmov>;
//misc FP selects
//Select double
-
+
def : Pat<(select (seteq F8RC:$RA, F8RC:$RB), F8RC:$st, F8RC:$sf),
(FCMOVNET F8RC:$sf, F8RC:$st, (CMPTEQ F8RC:$RA, F8RC:$RB))>;
def : Pat<(select (setoeq F8RC:$RA, F8RC:$RB), F8RC:$st, F8RC:$sf),
-let OutOperandList = (ops GPRC:$RC), InOperandList = (ops F4RC:$RA), Fb = 31 in
-def FTOIS : FPForm<0x1C, 0x078, "ftois $RA,$RC",[], s_ftoi>; //Floating to integer move, S_floating
-let OutOperandList = (ops GPRC:$RC), InOperandList = (ops F8RC:$RA), Fb = 31 in
+let OutOperandList = (outs GPRC:$RC), InOperandList = (ins F4RC:$RA), Fb = 31 in
+def FTOIS : FPForm<0x1C, 0x078, "ftois $RA,$RC",
+ [(set GPRC:$RC, (bitconvert F4RC:$RA))], s_ftoi>; //Floating to integer move, S_floating
+let OutOperandList = (outs GPRC:$RC), InOperandList = (ins F8RC:$RA), Fb = 31 in
def FTOIT : FPForm<0x1C, 0x070, "ftoit $RA,$RC",
[(set GPRC:$RC, (bitconvert F8RC:$RA))], s_ftoi>; //Floating to integer move
-let OutOperandList = (ops F4RC:$RC), InOperandList = (ops GPRC:$RA), Fb = 31 in
-def ITOFS : FPForm<0x14, 0x004, "itofs $RA,$RC",[], s_itof>; //Integer to floating move, S_floating
-let OutOperandList = (ops F8RC:$RC), InOperandList = (ops GPRC:$RA), Fb = 31 in
+let OutOperandList = (outs F4RC:$RC), InOperandList = (ins GPRC:$RA), Fb = 31 in
+def ITOFS : FPForm<0x14, 0x004, "itofs $RA,$RC",
+ [(set F4RC:$RC, (bitconvert GPRC:$RA))], s_itof>; //Integer to floating move, S_floating
+let OutOperandList = (outs F8RC:$RC), InOperandList = (ins GPRC:$RA), Fb = 31 in
def ITOFT : FPForm<0x14, 0x024, "itoft $RA,$RC",
[(set F8RC:$RC, (bitconvert GPRC:$RA))], s_itof>; //Integer to floating move
-let OutOperandList = (ops F4RC:$RC), InOperandList = (ops F8RC:$RB), Fa = 31 in
+let OutOperandList = (outs F4RC:$RC), InOperandList = (ins F8RC:$RB), Fa = 31 in
def CVTQS : FPForm<0x16, 0x7BC, "cvtqs/sui $RB,$RC",
[(set F4RC:$RC, (Alpha_cvtqs F8RC:$RB))], s_fadd>;
-let OutOperandList = (ops F8RC:$RC), InOperandList = (ops F8RC:$RB), Fa = 31 in
+let OutOperandList = (outs F8RC:$RC), InOperandList = (ins F8RC:$RB), Fa = 31 in
def CVTQT : FPForm<0x16, 0x7BE, "cvtqt/sui $RB,$RC",
[(set F8RC:$RC, (Alpha_cvtqt F8RC:$RB))], s_fadd>;
-let OutOperandList = (ops F8RC:$RC), InOperandList = (ops F8RC:$RB), Fa = 31 in
+let OutOperandList = (outs F8RC:$RC), InOperandList = (ins F8RC:$RB), Fa = 31 in
def CVTTQ : FPForm<0x16, 0x52F, "cvttq/svc $RB,$RC",
[(set F8RC:$RC, (Alpha_cvttq F8RC:$RB))], s_fadd>;
-let OutOperandList = (ops F8RC:$RC), InOperandList = (ops F4RC:$RB), Fa = 31 in
+let OutOperandList = (outs F8RC:$RC), InOperandList = (ins F4RC:$RB), Fa = 31 in
def CVTST : FPForm<0x16, 0x6AC, "cvtst/s $RB,$RC",
[(set F8RC:$RC, (fextend F4RC:$RB))], s_fadd>;
-let OutOperandList = (ops F4RC:$RC), InOperandList = (ops F8RC:$RB), Fa = 31 in
+let OutOperandList = (outs F4RC:$RC), InOperandList = (ins F8RC:$RB), Fa = 31 in
def CVTTS : FPForm<0x16, 0x7AC, "cvtts/sui $RB,$RC",
[(set F4RC:$RC, (fround F8RC:$RB))], s_fadd>;
+def : Pat<(select GPRC:$RC, F8RC:$st, F8RC:$sf),
+ (f64 (FCMOVEQT F8RC:$st, F8RC:$sf, (ITOFT GPRC:$RC)))>;
+def : Pat<(select GPRC:$RC, F4RC:$st, F4RC:$sf),
+ (f32 (FCMOVEQS F4RC:$st, F4RC:$sf, (ITOFT GPRC:$RC)))>;
/////////////////////////////////////////////////////////
//Branching
/////////////////////////////////////////////////////////
class br_icc<bits<6> opc, string asmstr>
- : BFormN<opc, (ops u64imm:$opc, GPRC:$R, target:$dst),
+ : BFormN<opc, (ins u64imm:$opc, GPRC:$R, target:$dst),
!strconcat(asmstr, " $R,$dst"), s_icbr>;
class br_fcc<bits<6> opc, string asmstr>
- : BFormN<opc, (ops u64imm:$opc, F8RC:$R, target:$dst),
+ : BFormN<opc, (ins u64imm:$opc, F8RC:$R, target:$dst),
!strconcat(asmstr, " $R,$dst"), s_fbr>;
let isBranch = 1, isTerminator = 1, hasCtrlDep = 1 in {
-let Ra = 31 in
+let Ra = 31, isBarrier = 1 in
def BR : BFormD<0x30, "br $$31,$DISP", [(br bb:$DISP)], s_ubr>;
-def COND_BRANCH_I : BFormN<0, (ops u64imm:$opc, GPRC:$R, target:$dst),
+def COND_BRANCH_I : BFormN<0, (ins u64imm:$opc, GPRC:$R, target:$dst),
"{:comment} COND_BRANCH imm:$opc, GPRC:$R, bb:$dst",
s_icbr>;
-def COND_BRANCH_F : BFormN<0, (ops u64imm:$opc, F8RC:$R, target:$dst),
+def COND_BRANCH_F : BFormN<0, (ins u64imm:$opc, F8RC:$R, target:$dst),
"{:comment} COND_BRANCH imm:$opc, F8RC:$R, bb:$dst",
s_fbr>;
//Branches, int
//An ugly trick to get the opcode as an imm I can use
def immBRCond : SDNodeXForm<imm, [{
- switch((uint64_t)N->getValue()) {
+ switch((uint64_t)N->getZExtValue()) {
+ default: assert(0 && "Unknown branch type");
case 0: return getI64Imm(Alpha::BEQ);
case 1: return getI64Imm(Alpha::BNE);
case 2: return getI64Imm(Alpha::BGE);
case 23: return getI64Imm(Alpha::FBGT);
case 24: return getI64Imm(Alpha::FBLE);
case 25: return getI64Imm(Alpha::FBLT);
- default: assert(0 && "Unknown branch type");
}
}]>;
(COND_BRANCH_I (immBRCond 2), GPRC:$RA, bb:$DISP)>;
def : Pat<(brcond (setgt GPRC:$RA, 0), bb:$DISP),
(COND_BRANCH_I (immBRCond 3), GPRC:$RA, bb:$DISP)>;
-def : Pat<(brcond (and GPRC:$RA, 1), bb:$DISP),
+def : Pat<(brcond (and GPRC:$RA, 1), bb:$DISP),
(COND_BRANCH_I (immBRCond 6), GPRC:$RA, bb:$DISP)>;
def : Pat<(brcond (setle GPRC:$RA, 0), bb:$DISP),
(COND_BRANCH_I (immBRCond 4), GPRC:$RA, bb:$DISP)>;
//EXCB Mfc 18.0400 Exception barrier
//FETCH Mfc 18.8000 Prefetch data
//FETCH_M Mfc 18.A000 Prefetch data, modify intent
-//LDL_L Mem 2A Load sign-extended longword locked
-//LDQ_L Mem 2B Load quadword locked
//LDQ_U Mem 0B Load unaligned quadword
//MB Mfc 18.4000 Memory barrier
-//STL_C Mem 2E Store longword conditional
-//STQ_C Mem 2F Store quadword conditional
//STQ_U Mem 0F Store unaligned quadword
//TRAPB Mfc 18.0000 Trap barrier
//WH64 Mfc 18.F800 Write hint \14 64 bytes
def immConst2Part : PatLeaf<(imm), [{
//true if imm fits in a LDAH LDA pair
- int64_t val = (int64_t)N->getValue();
+ int64_t val = (int64_t)N->getZExtValue();
return (val <= IMM_FULLHIGH && val >= IMM_FULLLOW);
}]>;
def immConst2PartInt : PatLeaf<(imm), [{
//true if imm fits in a LDAH LDA pair with zeroext
- uint64_t uval = N->getValue();
+ uint64_t uval = N->getZExtValue();
int32_t val32 = (int32_t)uval;
return ((uval >> 32) == 0 && //empty upper bits
val32 <= IMM_FULLHIGH);
def : Pat<(i64 immSExt16int:$imm),
(ZAPNOTi (LDA (SExt16 immSExt16int:$imm), R31), 15)>;
def : Pat<(i64 immConst2PartInt:$imm),
- (ZAPNOTi (LDA (LL16 (SExt32 immConst2PartInt:$imm)),
- (LDAH (LH16 (SExt32 immConst2PartInt:$imm)), R31)), 15)>;
+ (ZAPNOTi (LDA (LL16 (i64 (SExt32 immConst2PartInt:$imm))),
+ (LDAH (LH16 (i64 (SExt32 immConst2PartInt:$imm))), R31)), 15)>;
//TODO: I want to just define these like this!
projects / oota-llvm.git / blobdiff