llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-26 07:29:55 +00:00

LLVM backend for 6502

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Evan Cheng cb0f06e05c Disable folding loads into tail call in 32-bit PIC mode. It can introduce illegal code like this: addl $12, %esp popl %esi popl %edi popl %ebx popl %ebp jmpl __Block_deallocator-L1$pb(%esi) # TAILCALL The problem is the global base register is assigned GR32 register class. TCRETURNmi needs the registers making up the address mode to have the GR32_TC register class. The proper* fix is for X86DAGToDAGISel::getGlobalBaseReg() to return a copy from the global base register of the machine function rather than returning the register itself. But that has the potential of causing it to be coalesced to a more restrictive register class: GR32_TC. It can introduce additional copies and spills. For something as important the PIC base, it's not worth it especially since this is not an issue on 64-bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99455 91177308-0d34-0410-b5e6-96231b3b80d8		2010-03-25 00:10:31 +00:00
autoconf	Force configuration of some projects before others. In particular, some	2010-03-19 21:31:39 +00:00
bindings	Add OCaml tutorial to the examples.	2010-03-08 19:32:27 +00:00
cmake	Tell Valgrind when we modify already-executed machine code so it knows	2010-03-15 04:57:55 +00:00
docs	Docuemntation corrections from John Myers.	2010-03-25 00:03:04 +00:00
examples	Fix the ocaml kaleidoscope tutorial to fix linking external libraries.	2010-03-21 23:15:13 +00:00
include	Docuemntation corrections from John Myers.	2010-03-25 00:03:04 +00:00
lib	Disable folding loads into tail call in 32-bit PIC mode. It can introduce illegal code like this:	2010-03-25 00:10:31 +00:00
projects	Testing subversion commit access	2010-02-23 15:11:17 +00:00
runtime	disable this for mingw as well, we really need a 'has no dynamic linking' predicate.	2010-03-06 18:54:37 +00:00
test	Temporarily revert this, it's causing an issue with an internal project.	2010-03-24 23:35:21 +00:00
tools	Trim #includes.	2010-03-24 19:56:17 +00:00
unittests	another one	2010-03-18 18:59:08 +00:00
utils	add plumbing for handling multiple result nodes	2010-03-24 00:41:19 +00:00
website	Prepare for "core" website.	2007-08-03 05:43:35 +00:00
build-for-llvm-top.sh	Patch to build llvm with srcdir != objdir from	2009-01-23 08:42:38 +00:00
CMakeLists.txt	CMake: Add options for using static runtime on MSVC++ build.	2010-03-18 13:52:05 +00:00
configure	Force configuration of some projects before others. In particular, some	2010-03-19 21:31:39 +00:00
CREDITS.TXT	Adding the MicroBlaze backend.	2010-02-23 19:15:24 +00:00
LICENSE.TXT	2010 is upon us.	2010-01-09 18:40:31 +00:00
llvm.spec.in	* llvm.spec.in: update blurb	2007-07-13 09:48:29 +00:00
Makefile	modernize the do-all-for-me target to run lit	2010-03-21 22:23:02 +00:00
Makefile.common	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00
Makefile.config.in	Rewrite makefiles to explicitly reference DESTDIR to fix bug 3153.	2010-03-04 20:56:19 +00:00
Makefile.rules	remove arm mode workaround for ARM host	2010-03-17 21:28:19 +00:00
ModuleInfo.txt	Patch to build llvm with srcdir != objdir from	2009-01-23 08:42:38 +00:00
README.txt	Give packagers some advice about how to build LLVM so it's useful to	2010-02-26 00:54:42 +00:00

README.txt

Low Level Virtual Machine (LLVM)
================================

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