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LLVM backend for 6502
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Chris Lattner 7ff79c2d9d My previous commit had an incomplete message, it should have been: 
make the 'fp return in ST(0)' optimization smart enough to
look through token factor nodes.  THis allows us to compile 
testcases like CodeGen/X86/fp-stack-retcopy.ll into:

_carg:
	subl	$12, %esp
	call	L_foo$stub
	fstpl	(%esp)
	fldl	(%esp)
	addl	$12, %esp
	ret

instead of:

_carg:
	subl	$28, %esp
	call	L_foo$stub
	fstpl	16(%esp)
	movsd	16(%esp), %xmm0
	movsd	%xmm0, 8(%esp)
	fldl	8(%esp)
	addl	$28, %esp
	ret

Still not optimal, but much better and this is a trivial patch.  Fixing 
the rest requires invasive surgery that is is not llvm 2.2 material.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46054 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-16 05:56:59 +00:00
autoconf remove attribution from a variety of miscellaneous files. 2007-12-29 22:59:10 +00:00
bindings Modify Makefile.rules to allow makefiles to prepend to C.Flags and 2008-01-06 21:54:35 +00:00
docs Add description of 'llvm.trap' intrinsic. Also, minor fixes in formatting. 2008-01-15 22:31:34 +00:00
examples remove attributions from examples. 2007-12-29 20:37:57 +00:00
include Factor the ReachesChainWithoutSideEffects out of dag combiner into 2008-01-16 05:49:24 +00:00
lib My previous commit had an incomplete message, it should have been: 2008-01-16 05:56:59 +00:00
projects remove attributions from the rest of the llvm makefiles. 2007-12-29 20:11:13 +00:00
runtime With this patch, the LowerGC transformation becomes the 2008-01-07 01:30:53 +00:00
test My previous commit had an incomplete message, it should have been: 2008-01-16 05:56:59 +00:00
tools - Introduces versioning macro LLVM_LTO_VERSION 2008-01-15 23:52:34 +00:00
utils Add files to windows project files. Also include <algorithm> explicitly so that vstudio build works 2008-01-15 21:43:17 +00:00
website Prepare for "core" website. 2007-08-03 05:43:35 +00:00
win32 Add files to windows project files. Also include <algorithm> explicitly so that vstudio build works 2008-01-15 21:43:17 +00:00
Xcode Removing obsolete files from the Xcode project. 2007-12-31 01:45:55 +00:00
build-for-llvm-top.sh Allow the configure options to be set according to the llvm-top options. 2007-08-31 19:53:42 +00:00
configure Do not build CBackend and MSIL regardless of configured targets 2007-12-13 01:18:52 +00:00
CREDITS.TXT Update credits. 2007-12-11 09:32:07 +00:00
LICENSE.TXT Updated source file headers to llvm coding standard. 2007-12-05 01:40:25 +00:00
llvm.spec.in * llvm.spec.in: update blurb 2007-07-13 09:48:29 +00:00
Makefile remove attributions from the rest of the llvm makefiles. 2007-12-29 20:11:13 +00:00
Makefile.common remove attributions from the rest of the llvm makefiles. 2007-12-29 20:11:13 +00:00
Makefile.config.in improve compatibility with mingw, patch by Alain Frisch 2008-01-15 22:50:50 +00:00
Makefile.rules Commit a piece that I missed before, patch by Alain Frisch 2008-01-15 23:27:40 +00:00
ModuleInfo.txt Update to include clean and install commands. 2007-07-20 20:54:41 +00:00
README.txt

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