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For --trace-fst, save enum decoding information, bug1358.

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This commit is contained in:
Wilson Snyder
2018-10-08 07:21:22 -04:00
parent 870918a788
commit cc45a3dd72
9 changed files with 358 additions and 30 deletions
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src/V3EmitC.cpp
+56 -3
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@@ -2715,8 +2715,15 @@ void EmitCImp::main(AstNodeModule* modp, bool slow, bool fast) {
// Tracing routines
class EmitCTrace : EmitCStmts {
// NODE STATE/TYPES
// Cleared on netlist
// AstNode::user1() -> int. Enum number
AstUser1InUse m_inuser1;
// MEMBERS
AstCFunc* m_funcp; // Function we're in now
bool m_slow; // Making slow file
int m_enumNum; // Enumeration number (whole netlist)
// METHODS
void newOutCFile(int filenum) {
@@ -2819,7 +2826,7 @@ class EmitCTrace : EmitCStmts {
return varp->isSc() && varp->isScUint();
}
void emitTraceInitOne(AstTraceDecl* nodep) {
void emitTraceInitOne(AstTraceDecl* nodep, int enumNum) {
if (nodep->dtypep()->basicp()->isDouble()) {
puts("vcdp->declDouble");
} else if (nodep->isWide()) {
@@ -2838,6 +2845,7 @@ class EmitCTrace : EmitCStmts {
putsQuoted(nodep->showname());
// Direction
if (v3Global.opt.traceFormat() == TraceFormat::FST) {
puts(","+cvtToStr(enumNum));
// fstVarDir
if (nodep->declInout()) puts(",FST_VD_INOUT");
else if (nodep->declInput()) puts(",FST_VD_INPUT");
@@ -2900,6 +2908,49 @@ class EmitCTrace : EmitCStmts {
puts(");");
}
int emitTraceDeclDType(AstNodeDType* nodep) {
// Return enum number or -1 for none
if (v3Global.opt.traceFormat() == TraceFormat::FST) {
// Skip over refs-to-refs, but stop before final ref so can get data type name
// Alternatively back in V3Width we could have push enum names from upper typedefs
if (AstEnumDType* enump = VN_CAST(nodep->skipRefToEnump(), EnumDType)) {
int enumNum = enump->user1();
if (!enumNum) {
enumNum = ++m_enumNum;
enump->user1(enumNum);
int nvals = 0;
puts("{\n");
puts("const char* __VenumItemNames[]\n");
puts("= {");
for (AstEnumItem* itemp = enump->itemsp(); itemp;
itemp=VN_CAST(itemp->nextp(), EnumItem)) {
if (++nvals > 1) puts(", ");
putbs("\""+itemp->prettyName()+"\"");
}
puts("};\n");
nvals = 0;
puts("const char* __VenumItemValues[]\n");
puts("= {");
for (AstEnumItem* itemp = enump->itemsp(); itemp;
itemp=VN_CAST(itemp->nextp(), EnumItem)) {
AstConst* constp = VN_CAST(itemp->valuep(), Const);
if (++nvals > 1) puts(", ");
putbs("\""+constp->num().displayed(nodep->fileline(), "%0b")+"\"");
}
puts("};\n");
puts("vcdp->declDTypeEnum("+cvtToStr(enumNum)
+", \""+enump->prettyName()+"\", "
+cvtToStr(nvals)
+", "+cvtToStr(enump->widthMin())
+", __VenumItemNames, __VenumItemValues);\n");
puts("}\n");
}
return enumNum;
}
}
return -1;
}
void emitTraceChangeOne(AstTraceInc* nodep, int arrayindex) {
iterateAndNextNull(nodep->precondsp());
string full = ((m_funcp->funcType() == AstCFuncType::TRACE_FULL
@@ -3013,12 +3064,13 @@ class EmitCTrace : EmitCStmts {
m_funcp = NULL;
}
virtual void visit(AstTraceDecl* nodep) {
int enumNum = emitTraceDeclDType(nodep->dtypep());
if (nodep->arrayRange().ranged()) {
puts("{int i; for (i=0; i<"+cvtToStr(nodep->arrayRange().elements())+"; i++) {\n");
emitTraceInitOne(nodep);
emitTraceInitOne(nodep, enumNum);
puts("}}\n");
} else {
emitTraceInitOne(nodep);
emitTraceInitOne(nodep, enumNum);
puts("\n");
}
}
@@ -3041,6 +3093,7 @@ public:
explicit EmitCTrace(bool slow) {
m_funcp = NULL;
m_slow = slow;
m_enumNum = 0;
}
virtual ~EmitCTrace() {}
void main() {