[llvm] r323383 - [TableGen] Add a way of getting the number of generic opcodes without including modular CodeGen headers.
Benjamin Kramer via llvm-commits
llvm-commits at lists.llvm.org
Wed Jan 24 14:35:11 PST 2018
Author: d0k
Date: Wed Jan 24 14:35:11 2018
New Revision: 323383
URL: http://llvm.org/viewvc/llvm-project?rev=323383&view=rev
Log:
[TableGen] Add a way of getting the number of generic opcodes without including modular CodeGen headers.
This is a bit of a hack, but removes a cycle that broke modular builds
of LLVM. Of course the cycle is still there in form of a dependency
on the .def file.
Modified:
llvm/trunk/utils/TableGen/CodeGenSchedule.cpp
llvm/trunk/utils/TableGen/CodeGenTarget.cpp
llvm/trunk/utils/TableGen/CodeGenTarget.h
Modified: llvm/trunk/utils/TableGen/CodeGenSchedule.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/CodeGenSchedule.cpp?rev=323383&r1=323382&r2=323383&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenSchedule.cpp (original)
+++ llvm/trunk/utils/TableGen/CodeGenSchedule.cpp Wed Jan 24 14:35:11 2018
@@ -19,7 +19,6 @@
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Regex.h"
@@ -104,9 +103,10 @@ struct InstRegexOp : public SetTheory::O
RegexList.push_back(std::make_pair(Prefix, Regex(pat)));
}
for (auto &R : RegexList) {
+ unsigned NumGeneric = Target.getNumFixedInstructions();
// The generic opcodes are unsorted, handle them manually.
- for (auto *Inst : Target.getInstructionsByEnumValue().slice(
- 0, TargetOpcode::GENERIC_OP_END + 1)) {
+ for (auto *Inst :
+ Target.getInstructionsByEnumValue().slice(0, NumGeneric + 1)) {
if (Inst->TheDef->getName().startswith(R.first) &&
(!R.second ||
R.second->match(Inst->TheDef->getName().substr(R.first.size()))))
@@ -114,8 +114,7 @@ struct InstRegexOp : public SetTheory::O
}
ArrayRef<const CodeGenInstruction *> Instructions =
- Target.getInstructionsByEnumValue().slice(
- TargetOpcode::GENERIC_OP_END + 1);
+ Target.getInstructionsByEnumValue().slice(NumGeneric + 1);
// Target instructions are sorted. Find the range that starts with our
// prefix.
Modified: llvm/trunk/utils/TableGen/CodeGenTarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/CodeGenTarget.cpp?rev=323383&r1=323382&r2=323383&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenTarget.cpp (original)
+++ llvm/trunk/utils/TableGen/CodeGenTarget.cpp Wed Jan 24 14:35:11 2018
@@ -345,13 +345,18 @@ GetInstByName(const char *Name,
return I->second.get();
}
+static const char *const FixedInstrs[] = {
+#define HANDLE_TARGET_OPCODE(OPC) #OPC,
+#include "llvm/CodeGen/TargetOpcodes.def"
+ nullptr};
+
+unsigned CodeGenTarget::getNumFixedInstructions() {
+ return array_lengthof(FixedInstrs) - 1;
+}
+
/// \brief Return all of the instructions defined by the target, ordered by
/// their enum value.
void CodeGenTarget::ComputeInstrsByEnum() const {
- static const char *const FixedInstrs[] = {
-#define HANDLE_TARGET_OPCODE(OPC) #OPC,
-#include "llvm/CodeGen/TargetOpcodes.def"
- nullptr};
const auto &Insts = getInstructions();
for (const char *const *p = FixedInstrs; *p; ++p) {
const CodeGenInstruction *Instr = GetInstByName(*p, Insts, Records);
@@ -360,6 +365,8 @@ void CodeGenTarget::ComputeInstrsByEnum(
InstrsByEnum.push_back(Instr);
}
unsigned EndOfPredefines = InstrsByEnum.size();
+ assert(EndOfPredefines == getNumFixedInstructions() &&
+ "Missing generic opcode");
for (const auto &I : Insts) {
const CodeGenInstruction *CGI = I.second.get();
Modified: llvm/trunk/utils/TableGen/CodeGenTarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/CodeGenTarget.h?rev=323383&r1=323382&r2=323383&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenTarget.h (original)
+++ llvm/trunk/utils/TableGen/CodeGenTarget.h Wed Jan 24 14:35:11 2018
@@ -140,6 +140,9 @@ public:
return *I->second;
}
+ /// Returns the number of predefined instructions.
+ static unsigned getNumFixedInstructions();
+
/// getInstructionsByEnumValue - Return all of the instructions defined by the
/// target, ordered by their enum value.
ArrayRef<const CodeGenInstruction *>
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