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f73780ec1a
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Sanjoy Das f73780ec1a [RewriteStatepointsForGC] Strip deref info after rewriting. 
Summary:
Once a gc.statepoint has been rewritten to relocate live references, the
SSA values represent physical pointers instead of logical references.
Logical dereferencability does not imply physical dereferencability and
after RewriteStatepointsForGC has run any attributes that imply
dereferencability of the logical references need to be stripped.

This current approach is conservative, and can be made more precise
later if needed.  For starters, we need to strip dereferencable
attributes only from pointers that live in the GC address space.

Reviewers: reames, pgavlin

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10105

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238883 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-02 22:33:37 +00:00
autoconf [omp] Actually provide a default OpenMP runtime -- libgomp for now. 2015-05-28 02:17:15 +00:00
bindings
cmake [CMake] Revert commits r238740/r238741 for embedding Windows version info. 2015-06-01 13:40:14 +00:00
docs [IR/AsmWriter] Output escape sequences if the first character isdigit() 2015-06-02 21:25:08 +00:00
examples BrainF.cpp: Update CreateCall() according to r237624. 2015-05-19 06:50:19 +00:00
include [NFCI] Change RewriteStatepointsForGC to a ModulePass. 2015-06-02 22:33:34 +00:00
lib [RewriteStatepointsForGC] Strip deref info after rewriting. 2015-06-02 22:33:37 +00:00
projects
test [RewriteStatepointsForGC] Strip deref info after rewriting. 2015-06-02 22:33:37 +00:00
tools Simplify now that we always use an alignment of 2 for ELF files. 2015-06-02 12:05:27 +00:00
unittests YAML traits need to be in the llvm::yaml namespace. 2015-05-29 18:14:55 +00:00
utils [TableGen] Rename ListInit::getSize to just 'size' to be more consistent. 2015-06-02 04:15:57 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt Enable solid lzma compression for cpack, decreases setup size by ~30% 2015-05-14 17:07:41 +00:00
CODE_OWNERS.TXT Added Andrey Churbanov as the owner of the OpenMP runtime library code 2015-05-05 20:17:53 +00:00
configure [omp] Actually provide a default OpenMP runtime -- libgomp for now. 2015-05-28 02:17:15 +00:00
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llvm.spec.in
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Makefile.config.in Deprecate in-source autotools builds 2015-05-04 02:04:54 +00:00
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