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SPV: Partially address #2293: correct "const in" precision matching.

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Track whether formal parameters declare reduced precision and match
that with arguments, and if they differ, make a copy to promote the
precision.
This commit is contained in:
John Kessenich 2020-06-26 08:37:06 -06:00
parent fbb9dc2cf1
commit 4df10335e6
6 changed files with 94 additions and 2 deletions
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5
SPIRV/SpvBuilder.cpp
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@ -1298,8 +1298,11 @@ Function* Builder::makeFunctionEntry(Decoration precision, Id returnType, const
// Set up the precisions
setPrecision(function->getId(), precision);
for (unsigned p = 0; p < (unsigned)decorations.size(); ++p) {
for (int d = 0; d < (int)decorations[p].size(); ++d)
for (int d = 0; d < (int)decorations[p].size(); ++d) {
addDecoration(firstParamId + p, decorations[p][d]);
if (decorations[p][d] == DecorationRelaxedPrecision)
function->addReducedPrecisionParam(p);
}
}
// CFG