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Internals: V3Emit refactoring. No functional change intended.

This commit is contained in:
Wilson Snyder 2020-02-01 19:32:04 -05:00
parent 820df28ad9
commit 969a46faf6
1 changed files with 31 additions and 26 deletions
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57
src/V3EmitC.cpp
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@ -1521,6 +1521,7 @@ class EmitCImp : EmitCStmts {
void emitWrapEval(AstNodeModule* modp);
void emitMTaskState();
void emitMTaskVertexCtors(bool* firstp);
void emitIntTop(AstNodeModule* modp);
void emitInt(AstNodeModule* modp);
void maybeSplit(AstNodeModule* modp);
@ -1531,7 +1532,8 @@ public:
m_fast = false;
}
virtual ~EmitCImp() {}
void main(AstNodeModule* modp, bool slow, bool fast);
void mainImp(AstNodeModule* modp, bool slow, bool fast);
void mainInt(AstNodeModule* modp);
void mainDoFunc(AstCFunc* nodep) {
iterate(nodep);
}
@ -2571,7 +2573,7 @@ void EmitCImp::emitMTaskState() {
puts("bool __Vm_even_cycle;\n");
}
void EmitCImp::emitInt(AstNodeModule* modp) {
void EmitCImp::emitIntTop(AstNodeModule* modp) {
// Always have this first; gcc has short circuiting if #ifdef is first in a file
ofp()->putsGuard();
puts("\n");
@ -2582,12 +2584,8 @@ void EmitCImp::emitInt(AstNodeModule* modp) {
} else {
puts("#include \"verilated.h\"\n");
}
if (v3Global.opt.mtasks()) {
puts("#include \"verilated_threads.h\"\n");
}
if (v3Global.opt.savable()) {
puts("#include \"verilated_save.h\"\n");
}
if (v3Global.opt.mtasks()) puts("#include \"verilated_threads.h\"\n");
if (v3Global.opt.savable()) puts("#include \"verilated_save.h\"\n");
if (v3Global.opt.coverage()) {
puts("#include \"verilated_cov.h\"\n");
if (v3Global.opt.savable()) v3error("--coverage and --savable not supported together");
@ -2601,7 +2599,9 @@ void EmitCImp::emitInt(AstNodeModule* modp) {
puts("#include \"" + topClassName() + "__Dpi.h\"\n");
}
puts("\n");
}
void EmitCImp::emitInt(AstNodeModule* modp) {
emitModCUse(modp, VUseType::INT_INCLUDE);
// Declare foreign instances up front to make C++ happy
@ -2654,10 +2654,8 @@ void EmitCImp::emitInt(AstNodeModule* modp) {
ofp()->putsPrivate(!modp->isTop()); // private: unless top
puts(symClassName()+"* __VlSymsp; // Symbol table\n");
ofp()->putsPrivate(false); // public:
if (modp->isTop()) {
if (v3Global.opt.inhibitSim()) {
puts("bool __Vm_inhibitSim; ///< Set true to disable evaluation of module\n");
}
if (modp->isTop() && v3Global.opt.inhibitSim()) {
puts("bool __Vm_inhibitSim; ///< Set true to disable evaluation of module\n");
}
if (modp->isTop() && v3Global.opt.mtasks()) {
emitMTaskState();
@ -2729,8 +2727,8 @@ void EmitCImp::emitInt(AstNodeModule* modp) {
emitTextSection(AstType::atScInt);
puts("\n// API METHODS\n");
if (modp->isTop()) {
puts("\n// API METHODS\n");
if (optSystemC()) ofp()->putsPrivate(true); ///< eval() is invoked by our sensitive() calls.
else puts("/// Evaluate the model. Application must call when inputs change.\n");
puts("void eval();\n");
@ -2786,9 +2784,6 @@ void EmitCImp::emitInt(AstNodeModule* modp) {
+ "Verilated::quiesce(); rhs."
+ protect("__Vdeserialize") + "(os); return os; }\n");
}
// finish up h-file
ofp()->putsEndGuard();
}
//----------------------------------------------------------------------
@ -2858,7 +2853,22 @@ void EmitCImp::maybeSplit(AstNodeModule* fileModp) {
splitSizeInc(10); // Even blank functions get a file with a low csplit
}
void EmitCImp::main(AstNodeModule* modp, bool slow, bool fast) {
void EmitCImp::mainInt(AstNodeModule* modp) {
AstNodeModule* fileModp = modp; // Filename constructed using this module
m_modp = modp;
m_slow = true;
m_fast = true;
UINFO(5, " Emitting " << prefixNameProtect(modp) << endl);
m_ofp = newOutCFile(fileModp, false/*slow*/, false/*source*/);
emitIntTop(modp);
emitInt(modp);
ofp()->putsEndGuard();
VL_DO_CLEAR(delete m_ofp, m_ofp = NULL);
}
void EmitCImp::mainImp(AstNodeModule* modp, bool slow, bool fast) {
// Output a module
AstNodeModule* fileModp = modp; // Filename constructed using this module
m_modp = modp;
@ -2867,12 +2877,6 @@ void EmitCImp::main(AstNodeModule* modp, bool slow, bool fast) {
UINFO(5, " Emitting " << prefixNameProtect(modp) << endl);
if (m_fast) {
m_ofp = newOutCFile(fileModp, !m_fast, false/*source*/);
emitInt(modp);
VL_DO_CLEAR(delete m_ofp, m_ofp = NULL);
}
m_ofp = newOutCFile(fileModp, !m_fast, true/*source*/);
emitImpTop(fileModp);
emitImp(modp);
@ -3315,11 +3319,12 @@ void V3EmitC::emitc() {
// Process each module in turn
for (AstNodeModule* nodep = v3Global.rootp()->modulesp();
nodep; nodep = VN_CAST(nodep->nextp(), NodeModule)) {
{ EmitCImp cint; cint.mainInt(nodep); }
if (v3Global.opt.outputSplit()) {
{ EmitCImp fast; fast.main(nodep, false, true); }
{ EmitCImp slow; slow.main(nodep, true, false); }
{ EmitCImp fast; fast.mainImp(nodep, false, true); }
{ EmitCImp slow; slow.mainImp(nodep, true, false); }
} else {
{ EmitCImp both; both.main(nodep, true, true); }
{ EmitCImp both; both.mainImp(nodep, true, true); }
}
}
}