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LLVM backend for 6502
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Jakob Stoklund Olesen dae412bd32 Accurately model hardware alignment rounding. 
On Thumb, the displacement computation hardware uses the address of the
current instruction rouned down to a multiple of 4.  Include this
rounding in the UserOffset we compute for each instruction.

When inline asm is present, the instruction alignment may not be known.
Constrain the maximum displacement instead in that case.

This makes it possible for CreateNewWater() and OffsetIsInRange() to
agree about the valid displacements.  When they disagree, infinite
looping happens.

As always, test cases for this stuff are insane.

<rdar://problem/10660175>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147825 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10 01:34:59 +00:00
autoconf revert r147542 after comments from Joerg Sonnenberger 2012-01-05 18:28:46 +00:00
bindings Update OCaml bindings for the new half float type. 2011-12-28 18:51:08 +00:00
cmake revert r147542 after comments from Joerg Sonnenberger 2012-01-05 18:28:46 +00:00
docs Fix dead link 2012-01-07 04:11:27 +00:00
examples LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
include Remove the logging streamer. 2012-01-10 00:40:39 +00:00
lib Accurately model hardware alignment rounding. 2012-01-10 01:34:59 +00:00
projects revert r147542 after comments from Joerg Sonnenberger 2012-01-05 18:28:46 +00:00
runtime LLVMBuild: Remove trailing newline, which irked me. 2011-12-12 19:48:00 +00:00
test Adding IV chain generation to LSR. 2012-01-09 21:18:52 +00:00
tools Remove the logging streamer. 2012-01-10 00:40:39 +00:00
unittests Undo the hack in r147427 and move this unittest to a better home. This 2012-01-02 09:19:48 +00:00
utils Use descriptive variable name and remove incorrect operand number check. 2012-01-09 21:30:46 +00:00
.gitignore
CMakeLists.txt capitalize project name, reference bugzilla 2011-12-18 18:50:16 +00:00
configure revert r147542 after comments from Joerg Sonnenberger 2012-01-05 18:28:46 +00:00
CREDITS.TXT
LICENSE.TXT Happy new year 2012! 2012-01-01 08:16:56 +00:00
llvm.spec.in
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile
Makefile.common
Makefile.config.in capitalize project name, reference bugzilla 2011-12-18 18:50:16 +00:00
Makefile.rules PR11642 has been fixed, enable -fvisibility-inlines-hidden everywhere. 2011-12-27 21:37:11 +00:00
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