[patch] RFC: shark llvm 2.6svn r73431 api breakage fix - changelog entry

[Xerxes Rånby]

Suggested changelog entry:

2009-06-16  Xerxes Rånby  <xerxes at zafena.se>

	* ports/hotspot/src/share/vm/shark/llvmValue.hpp
	(jfloat_constant): Return llvm::Constant* when llvm
	version are 2.6 or later to handle llvm r73431 API change.
	(jdouble_constant): Likewise.
	* ports/hotspot/src/share/vm/shark/sharkBlock.cpp
	(SharkBlock::parse_bytecode): Updated to use CreateFAdd
	CreateFSub, CreateFMul and CreateFNeg for jfloat and jdouble
	when llvm version are 2.6 or later.


Xerxes Rånby skrev:
> http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-June/023073.html
> Add Sub Mul Neg have been split into FAdd FSub FMul FNeg for improved 
> integer / floatingpoint operation
>    llvm_api_breakage.patch
> improves floatingpoint performance by taking advandtage of this change.
>
> The llvm 2.6svn tip have improved support for vector types since 
> r73431 and some api's have changed to return Constant* instead of 
> ConstantFP*
>    llvm_api_breakage_2.patch
> fixes this issue.
>
> Cheers
> Xerxes