llvm-6502/unittests
Filip Pizlo 0e1327e4aa This exposes more MCJIT options via the C API:
CodeModel: It's now possible to create an MCJIT instance with any CodeModel you like.  Previously it was only possible to 
create an MCJIT that used CodeModel::JITDefault.

EnableFastISel: It's now possible to turn on the fast instruction selector.

The CodeModel option required some trickery.  The problem is that previously, we were ensuring future binary compatibility in 
the MCJITCompilerOptions by mandating that the user bzero's the options struct and passes the sizeof() that he saw; the 
bindings then bzero the remaining bits.  This works great but assumes that the bitwise zero equivalent of any field is a 
sensible default value.

But this is not the case for LLVMCodeModel, or its internal equivalent, llvm::CodeModel::Model.  In both of those, the default 
for a JIT is CodeModel::JITDefault (or LLVMCodeModelJITDefault), which is not bitwise zero.

Hence this change introduces LLVMInitializeMCJITCompilerOptions(), which will initialize the user's options struct with
defaults. The user will use this in the same way that they would have previously used memset() or bzero(). MCJITCAPITest.cpp
illustrates the change, as does the comment in ExecutionEngine.h.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180893 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01 22:58:00 +00:00
..
ADT SmallVector and SmallPtrSet allocations now power-of-two aligned. 2013-03-29 22:07:12 +00:00
Analysis Move all of the header files which are involved in modelling the LLVM IR 2013-01-02 11:36:10 +00:00
Bitcode llvm/unittests: Use OwningPtr to fix --vg-leak. 2013-01-23 08:33:13 +00:00
DebugInfo Create a stub for DWARF parser unittests 2013-04-17 08:29:02 +00:00
ExecutionEngine This exposes more MCJIT options via the C API: 2013-05-01 22:58:00 +00:00
IR Fix a disconcerting bug in Value::isUsedInBasicBlock, which gave wrong answers for blocks larger than 3 instrs. 2013-04-12 08:33:11 +00:00
Option llvm/unittests: Use OwningPtr to fix --vg-leak. 2013-01-23 08:33:13 +00:00
Support Try to fix ProgramTest on FreeBSD 2013-04-30 04:30:41 +00:00
Transforms Delete the functions F1 and F2 to appease the valgrind bot. 2013-04-10 23:21:26 +00:00
CMakeLists.txt Create a stub for DWARF parser unittests 2013-04-17 08:29:02 +00:00
Makefile Create a stub for DWARF parser unittests 2013-04-17 08:29:02 +00:00
Makefile.unittest build/unittests: Fix llvm-config names for gtest libraries, and bring Makefile 2011-12-15 23:35:08 +00:00