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Philip Reames a03cda02ab Canonicalize an assume(load != null) into !nonnull metadata 
We currently have two ways of informing the optimizer that the result of a load is never null: metadata and assume. This change converts the second in to the former. This avoids a need to implement optimizations using both forms.

We should probably extend this basic idea to metadata of other forms; in particular, range metadata. We view is that assumes should be considered a "last resort" for when there isn't a more canonical way to represent something.

Reviewed by: Hal
Differential Revision: http://reviews.llvm.org/D5951



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221737 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-11 23:33:19 +00:00
autoconf Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
bindings [OCaml] Fix mismatched CAMLparam/CAMLreturn. 2014-11-03 11:47:14 +00:00
cmake Pass PRIVATE to target_link_libraries if using shared libraries. 2014-11-07 15:33:56 +00:00
docs configure.ac lives in autoconf/, not autotools/ 2014-11-10 22:36:04 +00:00
examples [CMake] llvm/examples: Update libdeps for unoptimized builds. 2014-10-31 15:27:16 +00:00
include libLTO: Allow linker to choose context of modules and codegen 2014-11-11 23:19:23 +00:00
lib Canonicalize an assume(load != null) into !nonnull metadata 2014-11-11 23:33:19 +00:00
projects
test Canonicalize an assume(load != null) into !nonnull metadata 2014-11-11 23:33:19 +00:00
tools libLTO: Allow linker to choose context of modules and codegen 2014-11-11 23:19:23 +00:00
unittests [CMake] LLVMSupport: Give system_libs PRIVATE scope when LLVMSupport is built as SHARED. Users of LLVMSupport won't inherit ${system_libs}. 2014-11-07 16:08:19 +00:00
utils MCAsmParserExtension has a copy of the MCAsmParser. Use it. 2014-11-11 05:18:41 +00:00
.arcconfig
.clang-format
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Initial version of Go bindings. 2014-10-16 22:48:02 +00:00
CMakeLists.txt Pass PRIVATE to target_link_libraries if using shared libraries. 2014-11-07 15:33:56 +00:00
CODE_OWNERS.TXT
configure Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
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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
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