llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-10-09 18:55:33 +00:00

LLVM backend for 6502

Go to file

Evan Cheng c4af4638df Remove ARM isel hacks that fold large immediates into a pair of add, sub, and, and xor. The 32-bit move immediates can be hoisted out of loops by machine LICM but the isel hacks were preventing them. Instead, let peephole optimization pass recognize registers that are defined by immediates and the ARM target hook will fold the immediates in. Other changes include 1) do not fold and / xor into cmp to isel TST / TEQ instructions if there are multiple uses. This happens when the 'and' is live out, machine sink would have sinked the computation and that ends up pessimizing code. The peephole pass would recognize situations where the 'and' can be toggled to define CPSR and eliminate the comparison anyway. 2) Move peephole pass to after machine LICM, sink, and CSE to avoid blocking important optimizations. rdar://8663787, rdar://8241368 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119548 91177308-0d34-0410-b5e6-96231b3b80d8		2010-11-17 20:13:28 +00:00
autoconf	fix the autoconf script to detect "has asmprinter"ness of a target by	2010-11-14 19:10:47 +00:00
bindings	Try to fix ocaml bindings.	2010-10-08 00:36:21 +00:00
cmake	Revert inadvertant checkin of CMake libdeps.	2010-11-16 18:14:41 +00:00
docs	add some justification for "using namespace llvm;"	2010-11-17 19:47:20 +00:00
examples	Fix missing includes of "llvm/Analysis/Passes.h" in the tutorials. Thanks	2010-11-16 17:28:22 +00:00
include	Remove ARM isel hacks that fold large immediates into a pair of add, sub, and,	2010-11-17 20:13:28 +00:00
lib	Remove ARM isel hacks that fold large immediates into a pair of add, sub, and,	2010-11-17 20:13:28 +00:00
projects	projects: Don't try to build libcxx if one happens to have it checked out into	2010-09-09 15:49:32 +00:00
runtime	Rename 'libprofile/exported_symbols.lst' to 'libprofile/libprofile.exports'.	2010-09-03 15:42:45 +00:00
test	Remove ARM isel hacks that fold large immediates into a pair of add, sub, and,	2010-11-17 20:13:28 +00:00
tools	MCJIT: Stub out MCJIT implementation, still doesn't do anything useful.	2010-11-17 16:06:43 +00:00
unittests	unittests/CMakeLists.txt: Add missing VMCore/ValueMapTest.cpp to VMCoreTests.	2010-11-14 12:37:51 +00:00
utils	Remove ARM isel hacks that fold large immediates into a pair of add, sub, and,	2010-11-17 20:13:28 +00:00
website
build-for-llvm-top.sh	Patch to build llvm with srcdir != objdir from	2009-01-23 08:42:38 +00:00
CMakeLists.txt	Add LLVMObject Library.	2010-11-15 03:21:41 +00:00
configure	fix the autoconf script to detect "has asmprinter"ness of a target by	2010-11-14 19:10:47 +00:00
CREDITS.TXT	Convert a bunch of uses of 'bytecode' into 'bitcode'. This	2010-09-29 20:09:55 +00:00
LICENSE.TXT	2010 is upon us.	2010-01-09 18:40:31 +00:00
llvm.spec.in
Makefile	Add --enable-docs. Patch by NAKAMURA Takumi.	2010-11-12 19:24:06 +00:00
Makefile.common	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00
Makefile.config.in	Add --enable-docs. Patch by NAKAMURA Takumi.	2010-11-12 19:24:06 +00:00
Makefile.rules	remove JIT support from the Alpha backend. The JIT will be moving to MC,	2010-11-14 18:24:41 +00:00
ModuleInfo.txt	Remove trailing space. This is just an excuse to poke the	2010-10-05 20:32:15 +00:00
README.txt	Undoing test commit blank space.	2010-09-29 17:39:29 +00:00

README.txt

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.