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Internals: V3Number tracks node information, part of bug1305.

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Signed-off-by: Wilson Snyder <[email protected]>
This commit is contained in:
Todd Strader
2019-05-09 20:03:19 -04:00
committed by Wilson Snyder
parent 00efa05b50
commit eac3458647
27 changed files with 469 additions and 382 deletions
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src/V3Case.cpp
+10 -10
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@@ -170,10 +170,10 @@ private:
if (neverItem(nodep, iconstp)) {
// X in casez can't ever be executed
} else {
V3Number nummask (itemp->fileline(), iconstp->width());
nummask.opBitsNonX(iconstp->num());
uint32_t mask = nummask.toUInt();
V3Number numval (itemp->fileline(), iconstp->width());
V3Number nummask (itemp, iconstp->width());
nummask.opBitsNonX(iconstp->num());
uint32_t mask = nummask.toUInt();
V3Number numval (itemp, iconstp->width());
numval.opBitsOne(iconstp->num());
uint32_t val = numval.toUInt();
for (uint32_t i=0; i<(1UL<<m_caseWidth); ++i) {
@@ -248,9 +248,9 @@ private:
if (tree0p && !tree0p->user3()) tree0p = tree0p->cloneTree(true);
if (tree1p && !tree1p->user3()) tree1p = tree1p->cloneTree(true);
// Alternate scheme if we ever do multiple bits at a time:
//V3Number nummask (cexprp->fileline(), cexprp->width(), (1UL<<msb));
//AstNode* and1p = new AstAnd(cexprp->fileline(), cexprp->cloneTree(false),
// Alternate scheme if we ever do multiple bits at a time:
//V3Number nummask (cexprp, cexprp->width(), (1UL<<msb));
//AstNode* and1p = new AstAnd(cexprp->fileline(), cexprp->cloneTree(false),
// new AstConst(cexprp->fileline(), nummask));
AstNode* and1p = new AstSel(cexprp->fileline(), cexprp->cloneTree(false),
msb, 1);
@@ -334,9 +334,9 @@ private:
condp = new AstAnd(itemp->fileline(), ap, bp);
} else if (iconstp && iconstp->num().isFourState()
&& (nodep->casex() || nodep->casez() || nodep->caseInside())) {
V3Number nummask (itemp->fileline(), iconstp->width());
nummask.opBitsNonX(iconstp->num());
V3Number numval (itemp->fileline(), iconstp->width());
V3Number nummask (itemp, iconstp->width());
nummask.opBitsNonX(iconstp->num());
V3Number numval (itemp, iconstp->width());
numval.opBitsOne(iconstp->num());
AstNode* and1p = new AstAnd(itemp->fileline(), cexprp->cloneTree(false),
new AstConst(itemp->fileline(), nummask));