LLVM backend for 6502
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Richard Sandiford 204537e25e [SystemZ] Make more use of LTGFR
InstCombine turns (sext (trunc)) into (ashr (shl)), then converts any
comparison of the ashr against zero into a comparison of the shl against zero.
This makes sense in itself, but we want to undo it for z, since the sign-
extension instruction has a CC-setting form.

I've included tests for both the original and InstCombined variants,
but the former already worked.  The patch fixes the latter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197234 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-13 15:07:39 +00:00
autoconf Update to reflect the next release. 2013-11-20 10:10:50 +00:00
bindings [OCaml] Add a slash accidentally omitted from Makefile 2013-11-28 09:03:28 +00:00
cmake [CMake] add_lit_target: Let lit.site.cfg free from "--param build_mode" on single configuration builds, like autoconf build. 2013-12-04 11:15:17 +00:00
docs Add ARM to release instructions 2013-12-13 09:39:36 +00:00
examples [CMake] Update LLVM_LINK_COMPONENTS for each CMakeLists.txt. 2013-12-10 11:13:32 +00:00
include Revert "DebugInfo: Move type units into the debug_types section with appropriate comdat grouping and type unit headers" 2013-12-13 06:43:32 +00:00
lib [SystemZ] Make more use of LTGFR 2013-12-13 15:07:39 +00:00
projects Revert "Revert "Windows: Add support for unicode command lines"" 2013-10-07 01:00:07 +00:00
test [SystemZ] Make more use of LTGFR 2013-12-13 15:07:39 +00:00
tools llvm-cov: Added -b option for branch probabilities. 2013-12-13 01:15:07 +00:00
unittests Remove some dead code 2013-12-12 11:18:08 +00:00
utils Expose FileCheck's AddFixedStringToRegEx as Regex::escape 2013-12-12 00:06:41 +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
.clang-format Add a clang-format file so that the tool can automatically detect the 2013-09-02 07:19:04 +00:00
.gitignore Add extra vim swap file pattern 2012-10-09 23:48:34 +00:00
CMakeLists.txt CMake : optionaly enable LLVM to be compiled with -std=c++11 (default: off) 2013-11-26 10:33:53 +00:00
CODE_OWNERS.TXT Update email address. 2013-12-04 09:42:49 +00:00
configure Update to reflect the next release. 2013-11-20 10:10:50 +00:00
CREDITS.TXT Update CREDITS 2013-11-17 11:44:36 +00:00
LICENSE.TXT Be more specific and capitalize filenames. 2013-05-21 21:22:34 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +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 an autoconf option for turning on -gsplit-dwarf by default 2013-06-25 01:12:25 +00:00
Makefile.rules Teach the Makefile build system how to handle SOURCES which include 2013-11-14 23:51:29 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00

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

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