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Fix change detection error on unions, bug758.

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This commit is contained in:
Wilson Snyder
2014-05-02 08:14:23 -04:00
parent b631b5927b
commit d532a36739
2 changed files with 5 additions and 3 deletions
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src/V3Changed.cpp
+3 -3
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@@ -84,16 +84,16 @@ private:
AstVar* varp = vscp->varp();
vscp->v3warn(IMPERFECTSCH,"Imperfect scheduling of variable: "<<vscp);
AstUnpackArrayDType* arrayp = varp->dtypeSkipRefp()->castUnpackArrayDType();
AstStructDType *structp = varp->dtypeSkipRefp()->castStructDType();
AstNodeClassDType *classp = varp->dtypeSkipRefp()->castNodeClassDType();
bool isArray = arrayp;
bool isStruct = structp && structp->packedUnsup();
bool isClass = classp && classp->packedUnsup();
int elements = isArray ? arrayp->elementsConst() : 1;
if (isArray && (elements > DETECTARRAY_MAX_INDEXES)) {
vscp->v3warn(E_DETECTARRAY, "Unsupported: Can't detect more than "<<cvtToStr(DETECTARRAY_MAX_INDEXES)
<<" array indexes (probably with UNOPTFLAT warning suppressed): "<<varp->prettyName()<<endl
<<vscp->warnMore()
<<"... Could recompile with DETECTARRAY_MAX_INDEXES increased to at least "<<cvtToStr(elements));
} else if (!isArray && !isStruct
} else if (!isArray && !isClass
&& !varp->dtypeSkipRefp()->castBasicDType()) {
if (debug()) varp->dumpTree(cout,"-DETECTARRAY-");
vscp->v3warn(E_DETECTARRAY, "Unsupported: Can't detect changes on complex variable (probably with UNOPTFLAT warning suppressed): "<<varp->prettyName());