[clang] [RISCV] full support for riscv_rvv_vector_bits attribute (PR #100110)

[Craig Topper via cfe-commits]

================
@@ -10014,14 +10023,33 @@ bool ASTContext::areCompatibleRVVTypes(QualType 
FirstType,
           BuiltinVectorTypeInfo Info = getBuiltinVectorTypeInfo(BT);
           return FirstType->isRVVVLSBuiltinType() &&
                  Info.ElementType == BoolTy &&
-                 getTypeSize(SecondType) == getRVVTypeSize(*this, BT);
+                 getTypeSize(SecondType) == ((getRVVTypeSize(*this, BT)));
+        }
+        if (VT->getVectorKind() == VectorKind::RVVFixedLengthMask_1) {
+          BuiltinVectorTypeInfo Info = getBuiltinVectorTypeInfo(BT);
+          return FirstType->isRVVVLSBuiltinType() &&
+                 Info.ElementType == BoolTy &&
+                 getTypeSize(SecondType) == ((getRVVTypeSize(*this, BT) * 8));
+        }
+        if (VT->getVectorKind() == VectorKind::RVVFixedLengthMask_2) {
+          BuiltinVectorTypeInfo Info = getBuiltinVectorTypeInfo(BT);
+          return FirstType->isRVVVLSBuiltinType() &&
+                 Info.ElementType == BoolTy &&
+                 getTypeSize(SecondType) == ((getRVVTypeSize(*this, BT)) * 4);
+        }
+        if (VT->getVectorKind() == VectorKind::RVVFixedLengthMask_4) {
+          BuiltinVectorTypeInfo Info = getBuiltinVectorTypeInfo(BT);
+          return FirstType->isRVVVLSBuiltinType() &&
+                 Info.ElementType == BoolTy &&
+                 getTypeSize(SecondType) == ((getRVVTypeSize(*this, BT)) * 2);
         }
         if (VT->getVectorKind() == VectorKind::RVVFixedLengthData ||
-            VT->getVectorKind() == VectorKind::Generic)
+            VT->getVectorKind() == VectorKind::Generic) {
----------------
topperc wrote:

Curly braces aren't supposed to be used on single line bodies per coding 
standards 
https://llvm.org/docs/CodingStandards.html#don-t-use-braces-on-simple-single-statement-bodies-of-if-else-loop-statements

https://github.com/llvm/llvm-project/pull/100110
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