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LLVM backend for 6502
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a768c4a096
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Chandler Carruth a768c4a096 [IC] Fix a bug with the instcombine canonicalizing of loads and 
propagating of metadata.

We were propagating !nonnull metadata even when the newly formed load is
no longer of a pointer type. This is clearly broken and results in LLVM
failing the verifier and aborting. This patch just restricts the
propagation of !nonnull metadata to when we actually have a pointer
type.

This bug report and the initial version of this patch was provided by
Charles Davis! Many thanks for finding this!

We still need to add logic to round-trip the metadata correctly if we
combine from pointer types to integer types and then back by using range
metadata for the integer type loads. But this is the minimal and safe
version of the patch, which is important so we can backport it into 3.6.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229029 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-13 02:30:01 +00:00
autoconf Fix some bashims. More information on https://wiki.ubuntu.com/DashAsBinSh. Reported initially on https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772302 & https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772301 2015-02-01 14:55:43 +00:00
bindings [OCaml] Add Llvm.build_empty_phi. 2015-02-06 13:42:03 +00:00
cmake Teach llvm_add_library() to find include dirs. 2015-02-10 05:04:37 +00:00
docs Don't promote asynch EH invokes of nounwind functions to calls 2015-02-11 01:23:16 +00:00
examples [Orc] Add a JITSymbol class to the Orc APIs, refactor APIs, update clients. 2015-02-09 01:20:51 +00:00
include AsmWriter/Bitcode: MDImportedEntity 2015-02-13 01:46:02 +00:00
lib [IC] Fix a bug with the instcombine canonicalizing of loads and 2015-02-13 02:30:01 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test [IC] Fix a bug with the instcombine canonicalizing of loads and 2015-02-13 02:30:01 +00:00
tools Add concrete type overloads to PDBSymbol::findChildren(). 2015-02-12 21:09:24 +00:00
unittests Fix the build, I forgot to check that UnitTests still built. 2015-02-13 01:39:22 +00:00
utils AsmWriter/Bitcode: MDExpression 2015-02-13 01:42:09 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt Revert "Raising minimum required CMake version to 2.8.12.2." 2015-02-09 22:07:49 +00:00
CODE_OWNERS.TXT Assume code ownership for the PS4 to ensure patches get reviewed, per the Developer Policy. 2015-01-28 18:33:39 +00:00
configure Fix some bashims. More information on https://wiki.ubuntu.com/DashAsBinSh. Reported initially on https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772302 & https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772301 2015-02-01 14:55:43 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
README.txt Revert test commit 2015-02-04 18:46:00 +00:00

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