Add special-case range checking for VCVT_N intrinsic immediate operands.
Radar 9558930.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132782 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/NeonEmitter.cpp b/utils/TableGen/NeonEmitter.cpp
index 123abef..23fdbde 100644
--- a/utils/TableGen/NeonEmitter.cpp
+++ b/utils/TableGen/NeonEmitter.cpp
@@ -1398,9 +1398,14 @@
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";