Commit Graph

3 Commits

Author SHA1 Message Date
Yaxun Liu 407ca36b27 Let llvm.invariant.group.barrier accepts pointer to any address space
llvm.invariant.group.barrier may accept pointers to arbitrary address space.

This patch let it accept pointers to i8 in any address space and returns
pointer to i8 in the same address space.

Differential Revision: https://reviews.llvm.org/D39973

llvm-svn: 318413
2017-11-16 16:32:16 +00:00
Sanjoy Das 089c699743 Fix CodeGenPrepare::stripInvariantGroupMetadata
`dropUnknownNonDebugMetadata` takes a list of "known" metadata IDs.  The
only reason it worked at all is that `getMetadataID` returns something
unrelated -- it returns the subclass ID of the receiver (which is used
in `dyn_cast` etc.).  That does not numerically match
`LLVMContext::MD_invariant_group` and ends up dropping `invariant_group`
along with every other metadata that does not numerically match
`LLVMContext::MD_invariant_group`.

llvm-svn: 289973
2016-12-16 18:52:33 +00:00
Piotr Padlewski 6c15ec49ed Introducing llvm.invariant.group.barrier intrinsic
For more info for what reason it was invented, goto:
http://lists.llvm.org/pipermail/cfe-dev/2015-July/044227.html

invariant.group.barrier:
http://reviews.llvm.org/D12310
docs:
http://reviews.llvm.org/D11399
CodeGenPrepare:
http://reviews.llvm.org/D12875

llvm-svn: 247711
2015-09-15 18:32:14 +00:00