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Add special-case range checking for VCVT_N intrinsic immediate operands.

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Radar 9558930.

llvm-svn: 132782
This commit is contained in:
Bob Wilson 2011-06-09 16:57:29 +00:00
parent 164dc685e5
commit c8dc6c21a7
1 changed files with 8 additions and 3 deletions
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11
utils/TableGen/NeonEmitter.cpp
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@ -1398,9 +1398,14 @@ void NeonEmitter::runHeader(raw_ostream &OS) {
for (unsigned ti = 0, te = TypeVec.size(); ti != te; ++ti) {
std::string namestr, shiftstr, rangestr;
// Builtins which are overloaded by type will need to have their upper
// bound computed at Sema time based on the type constant.
if (Proto.find('s') == std::string::npos) {
if (R->getValueAsBit("isVCVT_N")) {
// VCVT between floating- and fixed-point values takes an immediate
// in the range 1 to 32.
ck = ClassB;
rangestr = "l = 1; u = 31"; // upper bound = l + u
} else if (Proto.find('s') == std::string::npos) {
// Builtins which are overloaded by type will need to have their upper
// bound computed at Sema time based on the type constant.
ck = ClassB;
if (R->getValueAsBit("isShift")) {
shiftstr = ", true";