[SveEmitter] Add IsOverloadNone flag and builtins for svpfalse and svcnt[bhwd]_pat
Add the IsOverloadNone flag to tell CGBuiltin that it does not have
an overloaded type. This is used for e.g. svpfalse which does
not take any arguments and always returns a svbool_t.
This patch also adds builtins for svcntb_pat, svcnth_pat, svcntw_pat
and svcntd_pat, as those don't require custom codegen.
Reviewers: SjoerdMeijer, efriedma, rovka
Reviewed By: efriedma
Tags: #clang
Differential Revision: https://reviews.llvm.org/D77596
diff --git a/clang/utils/TableGen/SveEmitter.cpp b/clang/utils/TableGen/SveEmitter.cpp
index b51047f..287ff53 100644
--- a/clang/utils/TableGen/SveEmitter.cpp
+++ b/clang/utils/TableGen/SveEmitter.cpp
@@ -264,6 +264,14 @@
llvm_unreachable("Unsupported imm check");
}
+ /// Returns the enum value for the flag type
+ uint64_t getEnumValueForFlag(StringRef C) const {
+ auto Res = FlagTypes.find(C);
+ if (Res != FlagTypes.end())
+ return Res->getValue();
+ llvm_unreachable("Unsupported flag");
+ }
+
// Returns the SVETypeFlags for a given value and mask.
uint64_t encodeFlag(uint64_t V, StringRef MaskName) const {
auto It = FlagTypes.find(MaskName);
@@ -528,6 +536,13 @@
Immediate = true;
PredicatePattern = true;
break;
+ case 'k':
+ Predicate = false;
+ Signed = true;
+ Float = false;
+ ElementBitwidth = Bitwidth = 32;
+ NumVectors = 0;
+ break;
case 'l':
Predicate = false;
Signed = true;
@@ -535,6 +550,20 @@
ElementBitwidth = Bitwidth = 64;
NumVectors = 0;
break;
+ case 'm':
+ Predicate = false;
+ Signed = false;
+ Float = false;
+ ElementBitwidth = Bitwidth = 32;
+ NumVectors = 0;
+ break;
+ case 'n':
+ Predicate = false;
+ Signed = false;
+ Float = false;
+ ElementBitwidth = Bitwidth = 64;
+ NumVectors = 0;
+ break;
case 'S':
Constant = true;
Pointer = true;
@@ -831,6 +860,13 @@
for (auto FlagRec : FlagsList)
Flags |= FlagRec->getValueAsInt("Value");
+ // Create a dummy TypeSpec for non-overloaded builtins.
+ if (Types.empty()) {
+ assert((Flags & getEnumValueForFlag("IsOverloadNone")) &&
+ "Expect TypeSpec for overloaded builtin!");
+ Types = "i";
+ }
+
// Extract type specs from string
SmallVector<TypeSpec, 8> TypeSpecs;
TypeSpec Acc;