Normalize attribute names if possible so we won't have to do two strcmps for every attribute.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45191 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/SemaDecl.cpp b/Sema/SemaDecl.cpp
index cf52817..12f7d7a 100644
--- a/Sema/SemaDecl.cpp
+++ b/Sema/SemaDecl.cpp
@@ -1650,8 +1650,17 @@
}
void Sema::HandleDeclAttribute(Decl *New, AttributeList *rawAttr) {
- if (!strcmp(rawAttr->getAttributeName()->getName(), "vector_size") ||
- !strcmp(rawAttr->getAttributeName()->getName(), "__vector_size__")) {
+ const char *attrName = rawAttr->getAttributeName()->getName();
+ unsigned attrLen = rawAttr->getAttributeName()->getLength();
+
+ // Normalize the attribute name, __foo__ becomes foo.
+ if (attrLen > 4 && attrName[0] == '_' && attrName[1] == '_' &&
+ attrName[attrLen - 2] == '_' && attrName[attrLen - 1] == '-') {
+ attrName += 2;
+ attrLen -= 4;
+ }
+
+ if (attrLen == 11 && !memcmp(attrName, "vector_size", 11)) {
if (ValueDecl *vDecl = dyn_cast<ValueDecl>(New)) {
QualType newType = HandleVectorTypeAttribute(vDecl->getType(), rawAttr);
if (!newType.isNull()) // install the new vector type into the decl
@@ -1663,9 +1672,7 @@
if (!newType.isNull()) // install the new vector type into the decl
tDecl->setUnderlyingType(newType);
}
- }
- if (!strcmp(rawAttr->getAttributeName()->getName(), "ocu_vector_type") ||
- !strcmp(rawAttr->getAttributeName()->getName(), "__ocu_vector_type__")) {
+ } else if (attrLen == 15 && !memcmp(attrName, "ocu_vector_type", 15)) {
if (TypedefDecl *tDecl = dyn_cast<TypedefDecl>(New))
HandleOCUVectorTypeAttribute(tDecl, rawAttr);
else