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Daniel Berlin 2c438a3075 This patch adds a ssa_copy intrinsic, as part of splitting up D29316. 
Summary:
The intrinsic, marked as returning it's first argument, has no code
generation effect (though currently not every optimization pass knows
that intrinsics with the returned attribute can be looked through).

It is about to be used to by the PredicateInfo pass to attach
predicate information to existing operands, and be able to tell what
the predicate information affects.

We deliberately do not attach any info through a second operand so
that the intrinsics do not need to dominate the comparisons/etc (since
in the case of assume, we may want to push them up the post-dominator
tree).

Reviewers: davide, sanjoy

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D29517

llvm-svn: 294341
 		2017-02-07 19:29:25 +00:00
clang Revert "Basic: match GCC behaviour for SuS macro" 2017-02-07 19:00:06 +00:00
clang-tools-extra [clangd] Strip file:// from the URI when calling formatting. 2017-02-07 16:10:17 +00:00
compiler-rt sancov.py: [Py3] Use bytes.decode() explicitly. 2017-02-07 14:13:18 +00:00
debuginfo-tests New round of fixes for "Always compile debuginfo-tests for the host triple" 2014-10-18 23:47:59 +00:00
libclc math: Add logb builtin 2017-01-18 03:14:10 +00:00
libcxx Stop using random_shuffle in the libc++ test suite. It's going to be removed in c++17. Use shuffle() instead. No change to libc++, just the tests. 2017-02-07 18:41:25 +00:00
libcxxabi Add support for demangling C++11 thread_local variables. In clang, the grammar for mangling for these names are "<special-name> ::= TW <object name>" for wrapper variables or "<special-name> ::= TH <object name>" for initialization variables. 2017-01-31 15:18:56 +00:00
libunwind Revert "DWARF: convert error logs to _LIBUNWIND_LOG" 2017-01-27 02:26:52 +00:00
lld [ELF] - Assign proper values for DefinedSynthetic symbols attached to non-allocatable sections. 2017-02-07 17:51:35 +00:00
lldb Synchronize PlatformFreeBSD with Linux 2017-02-07 19:29:10 +00:00
llgo [llgo] Remove support for LLVM attributes 2016-12-06 19:22:04 +00:00
llvm This patch adds a ssa_copy intrinsic, as part of splitting up D29316. 2017-02-07 19:29:25 +00:00
openmp [libomptarget] Align test code with runtime/ 2017-02-07 06:58:15 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly [External] Move lib/JSON to lib/External/JSON. NFC. 2017-02-05 15:26:56 +00:00