commit 220671a0806426051a5b565cd525bce56dc2d142
author Oren Ben Simhon <oren.ben.simhon@intel.com> Sat Mar 17 13:31:35 2018 +0000
committer Oren Ben Simhon <oren.ben.simhon@intel.com> Sat Mar 17 13:31:35 2018 +0000
tree 12c7cf206645be6194b6185a218c42d53675be14
parent fdd72fd5225dedb4431473fb3ac7b3d45fc8ed00

Adding nocf_check attribute for cf-protection fine tuning

The patch adds nocf_check target independent attribute for disabling checks that were enabled by cf-protection flag.
The attribute can be appertained to functions and function pointers.
Attribute name follows GCC's similar attribute name.

Differential Revision: https://reviews.llvm.org/D41880

llvm-svn: 327768

clang/lib/Serialization/ASTWriter.cpp

diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 53e09b3..e63000c 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -276,6 +276,7 @@
   Record.push_back(C.getCC());
   Record.push_back(C.getProducesResult());
   Record.push_back(C.getNoCallerSavedRegs());
+  Record.push_back(C.getNoCfCheck());
 
   if (C.getHasRegParm() || C.getRegParm() || C.getProducesResult())
     AbbrevToUse = 0;
@@ -884,6 +885,7 @@
   Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // CC
   Abv->Add(BitCodeAbbrevOp(0));                         // ProducesResult
   Abv->Add(BitCodeAbbrevOp(0));                         // NoCallerSavedRegs
+  Abv->Add(BitCodeAbbrevOp(0));                         // NoCfCheck
   // FunctionProtoType
   Abv->Add(BitCodeAbbrevOp(0));                         // IsVariadic
   Abv->Add(BitCodeAbbrevOp(0));                         // HasTrailingReturn