Remove dead code. Improve llvm_unreachable text. Simplify some control flow.
[oota-llvm.git] / utils / TableGen / EDEmitter.cpp
index 8e37519af0eb1417acced5460449aec05a2abf0f..e0fd566d8db4e36c7a49c5446633c0a525ba5075 100644 (file)
 
 #include "AsmWriterInst.h"
 #include "CodeGenTarget.h"
-#include "Record.h"
 
+#include "llvm/TableGen/Record.h"
 #include "llvm/MC/EDInstInfo.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
 
-#include <map>
 #include <string>
 #include <vector>
 
@@ -257,12 +256,15 @@ static int X86TypeFromOpName(LiteralConstantEmitter *type,
   REG("GR8");
   REG("GR8_NOREX");
   REG("GR16");
+  REG("GR16_NOAX");
   REG("GR32");
+  REG("GR32_NOAX");
   REG("GR32_NOREX");
   REG("GR32_TC");
   REG("FR32");
   REG("RFP32");
   REG("GR64");
+  REG("GR64_NOAX");
   REG("GR64_TC");
   REG("FR64");
   REG("VR64");
@@ -280,6 +282,7 @@ static int X86TypeFromOpName(LiteralConstantEmitter *type,
   IMM("i16i8imm");
   IMM("i32imm");
   IMM("i32i8imm");
+  IMM("u32u8imm");
   IMM("i64imm");
   IMM("i64i8imm");
   IMM("i64i32imm");
@@ -325,6 +328,9 @@ static int X86TypeFromOpName(LiteralConstantEmitter *type,
   PCR("uncondbrtarget");
   PCR("bltarget");
 
+  // all I, ARM mode only, conditional/unconditional
+  PCR("br_target");
+  PCR("bl_target");
   return 1;
 }
 
@@ -354,7 +360,8 @@ static void X86PopulateOperands(
     const CGIOperandList::OperandInfo &operandInfo = inst.Operands[index];
     Record &rec = *operandInfo.Rec;
 
-    if (X86TypeFromOpName(operandTypes[index], rec.getName())) {
+    if (X86TypeFromOpName(operandTypes[index], rec.getName()) &&
+        !rec.isSubClassOf("PointerLikeRegClass")) {
       errs() << "Operand type: " << rec.getName().c_str() << "\n";
       errs() << "Operand name: " << operandInfo.Name.c_str() << "\n";
       errs() << "Instruction name: " << inst.TheDef->getName().c_str() << "\n";
@@ -512,6 +519,8 @@ static void X86ExtractSemantics(
       // ignore (doesn't go anywhere we know about)
     } else if (name.find("VMCALL") != name.npos) {
       // ignore (rather different semantics than a regular call)
+    } else if (name.find("VMMCALL") != name.npos) {
+      // ignore (rather different semantics than a regular call)
     } else if (name.find("FAR") != name.npos && name.find("i") != name.npos) {
       CALL("off");
     } else {
@@ -551,6 +560,8 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
                              const std::string &name) {
   REG("GPR");
   REG("rGPR");
+  REG("GPRnopc");
+  REG("GPRsp");
   REG("tcGPR");
   REG("cc_out");
   REG("s_cc_out");
@@ -562,12 +573,29 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
   REG("QPR");
   REG("QQPR");
   REG("QQQQPR");
+  REG("VecListOneD");
+  REG("VecListTwoD");
+  REG("VecListThreeD");
+  REG("VecListFourD");
+  REG("VecListTwoQ");
+  REG("VecListOneDAllLanes");
+  REG("VecListTwoDAllLanes");
+  REG("VecListTwoQAllLanes");
 
   IMM("i32imm");
-  IMM("movt_imm");
+  IMM("fbits16");
+  IMM("fbits32");
+  IMM("i32imm_hilo16");
   IMM("bf_inv_mask_imm");
+  IMM("lsb_pos_imm");
+  IMM("width_imm");
   IMM("jtblock_operand");
   IMM("nohash_imm");
+  IMM("p_imm");
+  IMM("c_imm");
+  IMM("coproc_option_imm");
+  IMM("imod_op");
+  IMM("iflags_op");
   IMM("cpinst_operand");
   IMM("setend_op");
   IMM("cps_opt");
@@ -578,15 +606,54 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
   IMM("neg_zero");
   IMM("imm0_31");
   IMM("imm0_31_m1");
+  IMM("imm1_16");
+  IMM("imm1_32");
   IMM("nModImm");
+  IMM("nImmSplatI8");
+  IMM("nImmSplatI16");
+  IMM("nImmSplatI32");
+  IMM("nImmSplatI64");
+  IMM("nImmVMOVI32");
+  IMM("nImmVMOVF32");
+  IMM("imm8");
+  IMM("imm16");
+  IMM("imm32");
+  IMM("imm1_7");
+  IMM("imm1_15");
+  IMM("imm1_31");
+  IMM("imm0_1");
+  IMM("imm0_3");
+  IMM("imm0_7");
+  IMM("imm0_15");
+  IMM("imm0_255");
   IMM("imm0_4095");
+  IMM("imm0_65535");
+  IMM("imm0_65535_expr");
+  IMM("imm24b");
+  IMM("pkh_lsl_amt");
+  IMM("pkh_asr_amt");
   IMM("jt2block_operand");
-  IMM("t_imm_s4");
+  IMM("t_imm0_1020s4");
+  IMM("t_imm0_508s4");
   IMM("pclabel");
   IMM("adrlabel");
+  IMM("t_adrlabel");
   IMM("t2adrlabel");
   IMM("shift_imm");
+  IMM("t2_shift_imm");
   IMM("neon_vcvt_imm32");
+  IMM("shr_imm8");
+  IMM("shr_imm16");
+  IMM("shr_imm32");
+  IMM("shr_imm64");
+  IMM("t2ldrlabel");
+  IMM("postidx_imm8");
+  IMM("postidx_imm8s4");
+  IMM("imm_sr");
+  IMM("imm1_31");
+  IMM("VectorIndex8");
+  IMM("VectorIndex16");
+  IMM("VectorIndex32");
 
   MISC("brtarget", "kOperandTypeARMBranchTarget");                // ?
   MISC("uncondbrtarget", "kOperandTypeARMBranchTarget");           // ?
@@ -594,10 +661,17 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
   MISC("t_bcctarget", "kOperandTypeARMBranchTarget");             // ?
   MISC("t_cbtarget", "kOperandTypeARMBranchTarget");              // ?
   MISC("bltarget", "kOperandTypeARMBranchTarget");                // ?
+
+  MISC("br_target", "kOperandTypeARMBranchTarget");                // ?
+  MISC("bl_target", "kOperandTypeARMBranchTarget");                // ?
+  MISC("blx_target", "kOperandTypeARMBranchTarget");                // ?
+
   MISC("t_bltarget", "kOperandTypeARMBranchTarget");              // ?
   MISC("t_blxtarget", "kOperandTypeARMBranchTarget");             // ?
-  MISC("so_reg", "kOperandTypeARMSoReg");                         // R, R, I
-  MISC("shift_so_reg", "kOperandTypeARMSoReg");                   // R, R, I
+  MISC("so_reg_imm", "kOperandTypeARMSoRegReg");                         // R, R, I
+  MISC("so_reg_reg", "kOperandTypeARMSoRegImm");                         // R, R, I
+  MISC("shift_so_reg_reg", "kOperandTypeARMSoRegReg");                   // R, R, I
+  MISC("shift_so_reg_imm", "kOperandTypeARMSoRegImm");                   // R, R, I
   MISC("t2_so_reg", "kOperandTypeThumb2SoReg");                   // R, I
   MISC("so_imm", "kOperandTypeARMSoImm");                         // I
   MISC("rot_imm", "kOperandTypeARMRotImm");                       // I
@@ -607,8 +681,10 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
   MISC("it_pred", "kOperandTypeARMPredicate");                    // I
   MISC("addrmode_imm12", "kOperandTypeAddrModeImm12");            // R, I
   MISC("ldst_so_reg", "kOperandTypeLdStSOReg");                   // R, R, I
+  MISC("postidx_reg", "kOperandTypeARMAddrMode3Offset");          // R, I
   MISC("addrmode2", "kOperandTypeARMAddrMode2");                  // R, R, I
-  MISC("am2offset", "kOperandTypeARMAddrMode2Offset");            // R, I
+  MISC("am2offset_reg", "kOperandTypeARMAddrMode2Offset");        // R, I
+  MISC("am2offset_imm", "kOperandTypeARMAddrMode2Offset");        // R, I
   MISC("addrmode3", "kOperandTypeARMAddrMode3");                  // R, R, I
   MISC("am3offset", "kOperandTypeARMAddrMode3Offset");            // R, I
   MISC("ldstm_mode", "kOperandTypeARMLdStmMode");                 // I
@@ -616,40 +692,43 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
   MISC("addrmode6", "kOperandTypeARMAddrMode6");                  // R, R, I, I
   MISC("am6offset", "kOperandTypeARMAddrMode6Offset");            // R, I, I
   MISC("addrmode6dup", "kOperandTypeARMAddrMode6");               // R, R, I, I
+  MISC("addrmode6oneL32", "kOperandTypeARMAddrMode6");            // R, R, I, I
   MISC("addrmodepc", "kOperandTypeARMAddrModePC");                // R, I
+  MISC("addr_offset_none", "kOperandTypeARMAddrMode7");           // R
   MISC("reglist", "kOperandTypeARMRegisterList");                 // I, R, ...
   MISC("dpr_reglist", "kOperandTypeARMDPRRegisterList");          // I, R, ...
   MISC("spr_reglist", "kOperandTypeARMSPRRegisterList");          // I, R, ...
   MISC("it_mask", "kOperandTypeThumbITMask");                     // I
+  MISC("t2addrmode_reg", "kOperandTypeThumb2AddrModeReg");        // R
+  MISC("t2addrmode_posimm8", "kOperandTypeThumb2AddrModeImm8");   // R, I
+  MISC("t2addrmode_negimm8", "kOperandTypeThumb2AddrModeImm8");   // R, I
   MISC("t2addrmode_imm8", "kOperandTypeThumb2AddrModeImm8");      // R, I
   MISC("t2am_imm8_offset", "kOperandTypeThumb2AddrModeImm8Offset");//I
   MISC("t2addrmode_imm12", "kOperandTypeThumb2AddrModeImm12");    // R, I
   MISC("t2addrmode_so_reg", "kOperandTypeThumb2AddrModeSoReg");   // R, R, I
   MISC("t2addrmode_imm8s4", "kOperandTypeThumb2AddrModeImm8s4");  // R, I
+  MISC("t2addrmode_imm0_1020s4", "kOperandTypeThumb2AddrModeImm8s4");  // R, I
   MISC("t2am_imm8s4_offset", "kOperandTypeThumb2AddrModeImm8s4Offset");
                                                                   // R, I
   MISC("tb_addrmode", "kOperandTypeARMTBAddrMode");               // I
-  MISC("t_addrmode_rrs1", "kOperandTypeThumbAddrModeRegS");       // R, R
-  MISC("t_addrmode_rrs2", "kOperandTypeThumbAddrModeRegS");       // R, R
-  MISC("t_addrmode_rrs4", "kOperandTypeThumbAddrModeRegS");       // R, R
-  MISC("t_addrmode_is1", "kOperandTypeThumbAddrModeImmS");        // R, I
-  MISC("t_addrmode_is2", "kOperandTypeThumbAddrModeImmS");        // R, I
-  MISC("t_addrmode_is4", "kOperandTypeThumbAddrModeImmS");        // R, I
+  MISC("t_addrmode_rrs1", "kOperandTypeThumbAddrModeRegS1");      // R, R
+  MISC("t_addrmode_rrs2", "kOperandTypeThumbAddrModeRegS2");      // R, R
+  MISC("t_addrmode_rrs4", "kOperandTypeThumbAddrModeRegS4");      // R, R
+  MISC("t_addrmode_is1", "kOperandTypeThumbAddrModeImmS1");       // R, I
+  MISC("t_addrmode_is2", "kOperandTypeThumbAddrModeImmS2");       // R, I
+  MISC("t_addrmode_is4", "kOperandTypeThumbAddrModeImmS4");       // R, I
   MISC("t_addrmode_rr", "kOperandTypeThumbAddrModeRR");           // R, R
   MISC("t_addrmode_sp", "kOperandTypeThumbAddrModeSP");           // R, I
   MISC("t_addrmode_pc", "kOperandTypeThumbAddrModePC");           // R, I
+  MISC("addrmode_tbb", "kOperandTypeThumbAddrModeRR");            // R, R
+  MISC("addrmode_tbh", "kOperandTypeThumbAddrModeRR");            // R, R
 
   return 1;
 }
 
-#undef SOREG
-#undef SOIMM
-#undef PRED
 #undef REG
 #undef MEM
-#undef LEA
-#undef IMM
-#undef PCR
+#undef MISC
 
 #undef SET
 
@@ -682,7 +761,7 @@ static void ARMPopulateOperands(
       errs() << "Operand type: " << rec.getName() << '\n';
       errs() << "Operand name: " << operandInfo.Name << '\n';
       errs() << "Instruction name: " << inst.TheDef->getName() << '\n';
-      llvm_unreachable("Unhandled type");
+      throw("Unhandled type in EDEmitter");
     }
   }
 }
@@ -782,15 +861,20 @@ static void populateInstInfo(CompoundConstantEmitter &infoArray,
 
     unsigned numSyntaxes = 0;
 
-    if (target.getName() == "X86") {
-      X86PopulateOperands(operandTypes, inst);
-      X86ExtractSemantics(*instType, operandFlags, inst);
-      numSyntaxes = 2;
-    }
-    else if (target.getName() == "ARM") {
-      ARMPopulateOperands(operandTypes, inst);
-      ARMExtractSemantics(*instType, operandTypes, operandFlags, inst);
-      numSyntaxes = 1;
+    // We don't need to do anything for pseudo-instructions, as we'll never
+    // see them here. We'll only see real instructions.
+    // We still need to emit null initializers for everything.
+    if (!inst.isPseudo) {
+      if (target.getName() == "X86") {
+        X86PopulateOperands(operandTypes, inst);
+        X86ExtractSemantics(*instType, operandFlags, inst);
+        numSyntaxes = 2;
+      }
+      else if (target.getName() == "ARM") {
+        ARMPopulateOperands(operandTypes, inst);
+        ARMExtractSemantics(*instType, operandTypes, operandFlags, inst);
+        numSyntaxes = 1;
+      }
     }
 
     CompoundConstantEmitter *operandOrderArray = new CompoundConstantEmitter;
@@ -823,7 +907,8 @@ static void emitCommonEnums(raw_ostream &o, unsigned int &i) {
   operandTypes.addEntry("kOperandTypeX86EffectiveAddress");
   operandTypes.addEntry("kOperandTypeX86PCRelative");
   operandTypes.addEntry("kOperandTypeARMBranchTarget");
-  operandTypes.addEntry("kOperandTypeARMSoReg");
+  operandTypes.addEntry("kOperandTypeARMSoRegReg");
+  operandTypes.addEntry("kOperandTypeARMSoRegImm");
   operandTypes.addEntry("kOperandTypeARMSoImm");
   operandTypes.addEntry("kOperandTypeARMRotImm");
   operandTypes.addEntry("kOperandTypeARMSoImm2Part");
@@ -838,17 +923,23 @@ static void emitCommonEnums(raw_ostream &o, unsigned int &i) {
   operandTypes.addEntry("kOperandTypeARMAddrMode5");
   operandTypes.addEntry("kOperandTypeARMAddrMode6");
   operandTypes.addEntry("kOperandTypeARMAddrMode6Offset");
+  operandTypes.addEntry("kOperandTypeARMAddrMode7");
   operandTypes.addEntry("kOperandTypeARMAddrModePC");
   operandTypes.addEntry("kOperandTypeARMRegisterList");
   operandTypes.addEntry("kOperandTypeARMDPRRegisterList");
   operandTypes.addEntry("kOperandTypeARMSPRRegisterList");
   operandTypes.addEntry("kOperandTypeARMTBAddrMode");
   operandTypes.addEntry("kOperandTypeThumbITMask");
-  operandTypes.addEntry("kOperandTypeThumbAddrModeRegS");
-  operandTypes.addEntry("kOperandTypeThumbAddrModeImmS");
+  operandTypes.addEntry("kOperandTypeThumbAddrModeImmS1");
+  operandTypes.addEntry("kOperandTypeThumbAddrModeImmS2");
+  operandTypes.addEntry("kOperandTypeThumbAddrModeImmS4");
+  operandTypes.addEntry("kOperandTypeThumbAddrModeRegS1");
+  operandTypes.addEntry("kOperandTypeThumbAddrModeRegS2");
+  operandTypes.addEntry("kOperandTypeThumbAddrModeRegS4");
   operandTypes.addEntry("kOperandTypeThumbAddrModeRR");
   operandTypes.addEntry("kOperandTypeThumbAddrModeSP");
   operandTypes.addEntry("kOperandTypeThumbAddrModePC");
+  operandTypes.addEntry("kOperandTypeThumb2AddrModeReg");
   operandTypes.addEntry("kOperandTypeThumb2SoReg");
   operandTypes.addEntry("kOperandTypeThumb2SoImm");
   operandTypes.addEntry("kOperandTypeThumb2AddrModeImm8");
@@ -891,11 +982,7 @@ void EDEmitter::run(raw_ostream &o) {
 
   emitCommonEnums(o, i);
 
-  o << "namespace {\n";
-
-  o << "llvm::EDInstInfo instInfo" << target.getName().c_str() << "[] = ";
+  o << "static const llvm::EDInstInfo instInfo" << target.getName() << "[] = ";
   infoArray.emit(o, i);
   o << ";" << "\n";
-
-  o << "}\n";
 }