llvm-6502/lib
Chad Rosier 425e951734 Fall back to the selection dag isel to select tail calls.
This shouldn't affect codegen for -O0 compiles as tail call markers are not
emitted in unoptimized compiles.  Testing with the external/internal nightly
test suite reveals no change in compile time performance.  Testing with -O1,
-O2 and -O3 with fast-isel enabled did not cause any compile-time or
execution-time failures.  All tests were performed on my x86 machine.
I'll monitor our arm testers to ensure no regressions occur there.

In an upcoming clang patch I will be marking the objc_autoreleaseReturnValue
and objc_retainAutoreleaseReturnValue as tail calls unconditionally.  While
it's theoretically true that this is just an optimization, it's an
optimization that we very much want to happen even at -O0, or else ARC
applications become substantially harder to debug.

Part of rdar://12553082

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169796 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11 00:18:02 +00:00
..
Analysis Optimistically analyse Phi cycles 2012-12-10 23:02:41 +00:00
Archive Sort includes for all of the .h files under the 'lib' tree. These were 2012-12-04 07:12:27 +00:00
AsmParser Reorganize FastMathFlags to be a wrapper around unsigned, and streamline some interfaces. 2012-12-09 21:12:04 +00:00
Bitcode Reorganize FastMathFlags to be a wrapper around unsigned, and streamline some interfaces. 2012-12-09 21:12:04 +00:00
CodeGen Fall back to the selection dag isel to select tail calls. 2012-12-11 00:18:02 +00:00
DebugInfo Sort includes for all of the .h files under the 'lib' tree. These were 2012-12-04 07:12:27 +00:00
ExecutionEngine Adjust JIT target triple on OS X to match the current architecture. 2012-12-05 19:09:13 +00:00
Linker Use the new script to sort the includes of every file under lib. 2012-12-03 16:50:05 +00:00
MC Defer call to InitSections until after MCContext has been initialized. If 2012-12-10 22:49:11 +00:00
Object Use the new script to sort the includes of every file under lib. 2012-12-03 16:50:05 +00:00
Option Copy clang/Driver/<Option parsing stuff> to llvm. 2012-12-05 00:29:32 +00:00
Support Make NaCl naming consistent. The triple OSType is called NaCl and is represented 2012-12-04 18:37:26 +00:00
TableGen Sort includes for all of the .h files under the 'lib' tree. These were 2012-12-04 07:12:27 +00:00
Target Fall back to the selection dag isel to select tail calls. 2012-12-11 00:18:02 +00:00
Transforms Enable the loop vectorizer only on O2 and above. (Still disabled by default) 2012-12-10 21:45:01 +00:00
VMCore s/AttrListPtr/AttributeSet/g to better label what this class is going to be in the near future. 2012-12-07 23:16:57 +00:00
CMakeLists.txt Copy clang/Driver/<Option parsing stuff> to llvm. 2012-12-05 00:29:32 +00:00
LLVMBuild.txt Copy clang/Driver/<Option parsing stuff> to llvm. 2012-12-05 00:29:32 +00:00
Makefile Copy clang/Driver/<Option parsing stuff> to llvm. 2012-12-05 00:29:32 +00:00