llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-02 22:04:55 +00:00

LLVM backend for 6502

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Jan Wen Voung d9a3bad448 Change encoding of instruction operands in bitcode binaries to be relative to the instruction position. The old encoding would give an absolute ID which counts up within a function, and only resets at the next function. I.e., Instead of having: ... = icmp eq i32 n-1, n-2 br i1 ..., label %bb1, label %bb2 it will now be roughly: ... = icmp eq i32 1, 2 br i1 1, label %bb1, label %bb2 This makes it so that ids remain relatively small and can be encoded in fewer bits. With this encoding, forward reference operands will be given negative-valued IDs. Use signed VBRs for the most common case of forward references, which is phi instructions. To retain backward compatibility we bump the bitcode version from 0 to 1 to distinguish between the different encodings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165739 91177308-0d34-0410-b5e6-96231b3b80d8		2012-10-11 20:20:40 +00:00
autoconf	Re-enable support for --program-prefix.	2012-10-01 18:40:32 +00:00
bindings	Fix the ocaml binding breakage from TargetData -> DataLayout changes.	2012-10-08 17:06:25 +00:00
cmake	[CMake] add_lit_testsuite: EXCLUDE_FROM_ALL excludes the test ${target} out of check-all.	2012-10-10 13:32:55 +00:00
docs	Adds Phabricator documentation. This is a first step that answers many questions we have seen.	2012-10-11 19:40:46 +00:00
examples	Move TargetData to DataLayout.	2012-10-08 16:37:04 +00:00
include	Change encoding of instruction operands in bitcode binaries to be relative	2012-10-11 20:20:40 +00:00
lib	Change encoding of instruction operands in bitcode binaries to be relative	2012-10-11 20:20:40 +00:00
projects	Re-enable support for --program-prefix.	2012-10-01 18:40:32 +00:00
runtime	Place temporary LTO files into their own subdirectory.	2012-10-10 05:29:15 +00:00
test	Change encoding of instruction operands in bitcode binaries to be relative	2012-10-11 20:20:40 +00:00
tools	Add a new interface to allow IR-level passes to access codegen-specific information.	2012-10-10 22:04:55 +00:00
unittests	Move TargetData to DataLayout.	2012-10-08 16:39:34 +00:00
utils	tblgen: Compile TableGen without RTTI.	2012-10-10 20:27:18 +00:00
.gitignore	Add extra vim swap file pattern	2012-10-09 23:48:34 +00:00
CMakeLists.txt	Removing dependency on third party library for Intel JIT event support.	2012-09-28 17:35:20 +00:00
CODE_OWNERS.TXT	Add the list of code owners to the top level of the LLVM source tree to	2012-07-26 08:04:09 +00:00
configure	Re-enable support for --program-prefix.	2012-10-01 18:40:32 +00:00
CREDITS.TXT	Move TargetData to DataLayout.	2012-10-08 16:40:38 +00:00
LICENSE.TXT	Add YAML parser to Support.	2012-04-03 23:09:22 +00:00
llvm.spec.in	Tidy up. s/Low Level Virtual Machine/LLVM/.	2012-01-25 22:00:23 +00:00
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile	Remove dead variable.	2012-10-10 18:20:49 +00:00
Makefile.common	[docs] Remove unsupported references to ExtraSource variable.	2012-05-15 21:32:27 +00:00
Makefile.config.in	Re-enable support for --program-prefix.	2012-10-01 18:40:32 +00:00
Makefile.rules	Place temporary LTO files into their own subdirectory.	2012-10-10 05:29:15 +00:00
README.txt	test commit	2012-07-11 17:34:12 +00:00

README.txt

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

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