This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future.

This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40807 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/Bitcode/Reader/BitcodeReader.h b/lib/Bitcode/Reader/BitcodeReader.h
index 2f61b06c60..0655a1a91c 100644
--- a/lib/Bitcode/Reader/BitcodeReader.h
+++ b/lib/Bitcode/Reader/BitcodeReader.h
@@ -102,6 +102,11 @@ class BitcodeReader : public ModuleProvider {
   // When reading the module header, this list is populated with functions that
   // have bodies later in the file.
   std::vector<Function*> FunctionsWithBodies;
+
+  // When intrinsic functions are encountered which require upgrading they are 
+  // stored here with their replacement function.
+  typedef std::vector<std::pair<Function*, Function*> > UpgradedIntrinsicMap;
+  UpgradedIntrinsicMap UpgradedIntrinsics;
   
   // After the module header has been read, the FunctionsWithBodies list is 
   // reversed.  This keeps track of whether we've done this yet.