llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00

LLVM backend for 6502

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Daniel Sanders e1820a6a4e [mips][fp64] Add an implicit def to MFHC1 claiming that it reads the lower 32-bits of 64-bit FPR Summary: This is a white lie to workaround a widespread bug in the -mfp64 implementation. The problem is that none of the 32-bit fpu ops mention the fact that they clobber the upper 32-bits of the 64-bit FPR. This allows MFHC1 to be scheduled on the wrong side of most 32-bit FPU ops. Fixing that requires a major overhaul of the FPU implementation which can't be done right now due to time constraints. MFHC1 is one of two affected instructions. These instructions are the only FPU instructions that don't read or write the lower 32-bits. We therefore pretend that it reads the bottom 32-bits to artificially create a dependency and prevent the scheduler changing the behaviour of the code. The other instruction is MTHC1 which will be fixed once I've have found a failing test case for it. The testcase is test-suite/SingleSource/UnitTests/Vector/simple.c when given TARGET_CFLAGS="-mips32r2 -mfp64 -mmsa". Reviewers: jacksprat, matheusalmeida Reviewed By: jacksprat Differential Revision: http://llvm-reviews.chandlerc.com/D2966 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203464 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-10 15:01:57 +00:00
autoconf	Now that we don't use libtool, we don't need to upgrade it :-)	2014-03-05 22:45:14 +00:00
bindings	[python-bindings] Remove some cruft that snuck in.	2014-02-23 04:43:26 +00:00
cmake	[CMake] add_llvm_target(): No need to include TABLEGEN_OUTPUT in source list.	2014-03-04 17:05:28 +00:00
docs	IR: Change inalloca's grammar a bit	2014-03-09 06:41:58 +00:00
examples	Fix warnings about an variable only used in asserts.	2014-03-06 06:35:46 +00:00
include	Removing llvm::distance and llvm::copy for iterator_range based on post-commit review feedback. Adding an explicit range-based constructor to SmallVector, which supersedes the llvm::copy functionality.	2014-03-10 13:43:46 +00:00
lib	[mips][fp64] Add an implicit def to MFHC1 claiming that it reads the lower 32-bits of 64-bit FPR	2014-03-10 15:01:57 +00:00
projects	"Mac OS/X" -> "Mac OS X" spelling fixes for llvm.	2014-03-07 18:08:54 +00:00
test	[mips] Assembly parser must invoke the target streamer to handle .set reorder macro.	2014-03-10 13:21:10 +00:00
tools	[PM] Switch new pass manager from polymorphic_ptr to unique_ptr now that	2014-03-09 11:49:53 +00:00
unittests	ADT/PointerIntPairTest.cpp: Appease msc17.	2014-03-10 02:33:17 +00:00
utils	[C++11] Add 'override' keyword to virtual methods that override their base class.	2014-03-09 18:03:14 +00:00
.arcconfig
.clang-format	Test commit.	2014-03-02 13:08:46 +00:00
.gitignore	Added .DS_Store entry in .gitignore for ignoring .DS_Store files in the source	2014-01-25 15:15:16 +00:00
CMakeLists.txt	Work around FreeBSD rtld rpath $ORIGIN limitation	2014-03-09 18:48:45 +00:00
CODE_OWNERS.TXT	Add myself as owner for libc++	2014-02-18 14:03:17 +00:00
configure	Add patch level to llvm version in CMake and Autoconf	2014-03-03 15:22:00 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt	Remove the very substantial, largely unmaintained legacy PGO	2013-10-02 15:42:23 +00:00
Makefile	Provide CMake package modules in install tree	2014-02-09 16:37:02 +00:00
Makefile.common
Makefile.config.in	Add patch level to llvm version in CMake and Autoconf	2014-03-03 15:22:00 +00:00
Makefile.rules	"Mac OS/X" -> "Mac OS X" spelling fixes for llvm.	2014-03-07 18:08:54 +00:00
README.txt

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