[Sema][X86] Consider target attribute into the checks in validateOutputSize and validateInputSize.

The validateOutputSize and validateInputSize need to check whether
AVX or AVX512 are enabled. But this can be affected by the
target attribute so we need to factor that in.

This patch copies some of the code from CodeGen to create an
appropriate feature map that we can pass to the function. Probably
need some refactoring here to share more code with Codegen. Is
there a good place to do that? Also need to support the cpu_specific
attribute as well.

Differential Revision: https://reviews.llvm.org/D68627

1 files changed, 5 insertions, 3 deletions

diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
index ffccbe2289d..5b5eb3de83f 100644
--- a/clang/lib/CodeGen/CodeGenFunction.cpp
+++ b/clang/lib/CodeGen/CodeGenFunction.cpp
@@ -2224,7 +2224,7 @@ static bool hasRequiredFeatures(const SmallVectorImpl<StringRef> &ReqFeatures,
   // Now build up the set of caller features and verify that all the required
   // features are there.
   llvm::StringMap<bool> CallerFeatureMap;
-  CGM.getFunctionFeatureMap(CallerFeatureMap, GlobalDecl().getWithDecl(FD));
+  CGM.getContext().getFunctionFeatureMap(CallerFeatureMap, FD);
 
   // If we have at least one of the features in the feature list return
   // true, otherwise return false.
@@ -2286,11 +2286,13 @@ void CodeGenFunction::checkTargetFeatures(SourceLocation Loc,
     // Get the required features for the callee.
 
     const TargetAttr *TD = TargetDecl->getAttr<TargetAttr>();
-    TargetAttr::ParsedTargetAttr ParsedAttr = CGM.filterFunctionTargetAttrs(TD);
+    TargetAttr::ParsedTargetAttr ParsedAttr =
+        CGM.getContext().filterFunctionTargetAttrs(TD);
 
     SmallVector<StringRef, 1> ReqFeatures;
     llvm::StringMap<bool> CalleeFeatureMap;
-    CGM.getFunctionFeatureMap(CalleeFeatureMap, TargetDecl);
+    CGM.getContext().getFunctionFeatureMap(CalleeFeatureMap,
+                                           GlobalDecl(TargetDecl));
 
     for (const auto &F : ParsedAttr.Features) {
       if (F[0] == '+' && CalleeFeatureMap.lookup(F.substr(1)))