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LLVM backend for 6502
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9f4692d295
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Jakob Stoklund Olesen 9f4692d295 Tighten up the erase/remove API for bundled instructions. 
Most code is oblivious to bundles and uses the MBB::iterator which only
visits whole bundles. MBB::erase() operates on whole bundles at a time
as before.

MBB::remove() now refuses to remove bundled instructions. It is not safe
to remove all instructions in a bundle without deleting them since there
is no way of returning pointers to all the removed instructions.

MBB::remove_instr() and MBB::erase_instr() will now update bundle flags
correctly, lifting individual instructions out of bundles while leaving
the remaining bundle intact.

The MachineInstr convenience functions are updated so

  eraseFromParent() erases a whole bundle as before
  eraseFromBundle() erases a single instruction, leaving the rest of its bundle.
  removeFromParent() refuses to operate on bundled instructions, and
  removeFromBundle() lifts a single instruction out of its bundle.

These functions will no longer accidentally split or coalesce bundles -
bundle flags are updated to preserve the existing bundling, and explicit
bundleWith* / unbundleFrom* functions should be used to change the
instruction bundling.

This API update is still a work in progress. I am going to update APIs
first so they maintain bundle flags automatically when possible. Then
I'll add stricter verification of the bundle flags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170384 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-17 23:55:38 +00:00
autoconf Add options to disable building of ARCMT, Rewriter and Static Analyzer 2012-12-13 16:07:19 +00:00
bindings [python] Add markup option to disassembler 2012-12-01 21:57:30 +00:00
cmake [CMake] Move libxml2 stuff from clang to llvm/cmake. 2012-12-14 18:30:20 +00:00
docs Actually update the grammar of this sentence to reflect the removal of CellSPU. 2012-12-15 08:56:20 +00:00
examples Sort the #include lines of the examples/... tree. 2012-12-04 10:16:57 +00:00
include Tighten up the erase/remove API for bundled instructions. 2012-12-17 23:55:38 +00:00
lib Tighten up the erase/remove API for bundled instructions. 2012-12-17 23:55:38 +00:00
projects Clean up the sample include orderings, not that it really matters... 2012-12-04 10:46:21 +00:00
runtime libprofile/CommonProfiling.c: Fix according to C89. 2012-11-02 01:32:02 +00:00
test Add a triple to this test -- it has to be an ELF platform... 2012-12-17 21:44:50 +00:00
tools Prepare LLVM to fix PR14625, exposing a hook in MCContext to manage the 2012-12-17 21:32:42 +00:00
unittests Fix some integer constant warnings by using a suffix 2012-12-17 22:11:17 +00:00
utils Fix grammar-o. 2012-12-11 00:23:07 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:07:58 +00:00
.gitignore
CMakeLists.txt Fix spelling 2012-12-13 15:25:07 +00:00
CODE_OWNERS.TXT Taking ownership of indvars/lsr. 2012-12-05 23:32:44 +00:00
configure Add options to disable building of ARCMT, Rewriter and Static Analyzer 2012-12-13 16:07:19 +00:00
CREDITS.TXT Update my email address. 2012-11-29 21:17:26 +00:00
LICENSE.TXT Few more small CellSPU removals. 2012-11-14 22:13:56 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile [c-index-test] When building with BUILD_CLANG_ONLY=YES, include c-index-test. 2012-11-06 19:54:46 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add options to disable building of ARCMT, Rewriter and Static Analyzer 2012-12-13 16:07:19 +00:00
Makefile.rules Use MACOSX_DEPLOYMENT_TARGET when it is set. <rdar://problem/12433905> 2012-10-12 21:48:14 +00:00
README.txt Test commit. 2012-11-29 16:19:11 +00:00

README.txt 

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================================

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