Chad Rosier 0b2e4a1ba8 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

llvm-svn: 169796

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