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Author SHA1 Message Date
Fangrui Song dbc96b518b Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" 
This reverts commit 789a46f2d7.

Accidentally committed.
 2020-02-03 10:09:39 -08:00
Fangrui Song 789a46f2d7 [CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition 
Summary:
Clang -fpic defaults to -fno-semantic-interposition (GCC -fpic defaults
to -fsemantic-interposition).
Users need to specify -fsemantic-interposition to get semantic
interposition behavior.

Semantic interposition is currently a best-effort feature. There may
still be some cases where it is not handled well.

Reviewers: peter.smith, rnk, serge-sans-paille, sfertile, jfb, jdoerfert

Subscribers: dschuff, jyknight, dylanmckay, nemanjai, jvesely, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, arphaman, PkmX, jocewei, jsji, Jim, lenary, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D73865
 2020-02-03 09:52:48 -08:00
Tim Northover c46827c7ed LLVM IR: Generate new-style byval-with-Type from Clang 
LLVM IR recently added a Type parameter to the byval Attribute, so that
when pointers become opaque and no longer have an element type the
information will still be present in IR.

For now the Type parameter is optional (which is why Clang didn't need
this change at the time), but it will become mandatory soon.

llvm-svn: 362652
 2019-06-05 21:12:14 +00:00
Tim Northover fcb00d4aec Reapply: LLVM IR: update Clang tests for byval being a typed attribute. 
Since byval is now a typed attribute it gets sorted slightly differently by
LLVM when the order of attributes is being canonicalized. This updates the few
Clang tests that depend on the old order.

Clang patch is unchanged.

llvm-svn: 362129
 2019-05-30 18:49:19 +00:00
Tim Northover 4b281755ae Revert "LLVM IR: update Clang tests for byval being a typed attribute." 
The underlying LLVM change couldn't cope with llvm-link and broke LTO builds.

llvm-svn: 362028
 2019-05-29 20:45:32 +00:00
Tim Northover 45e8cc6639 LLVM IR: update Clang tests for byval being a typed attribute. 
Since byval is now a typed attribute it gets sorted slightly differently by
LLVM when the order of attributes is being canonicalized. This updates the few
Clang tests that depend on the old order.

llvm-svn: 362013
 2019-05-29 19:13:29 +00:00
Momchil Velikov 9e5e045b60 Use .cpp extension for certain tests instead of .cc 
The tests `CodeGen/aapcs[64]-align.cc` are not run since files with a `.cc`
suffix aren't recognisze as tests. This patch renames the above two files to
`.cpp`.

Differential Revision: https://reviews.llvm.org/D46013

Comitting as obvious.

llvm-svn: 339766
 2018-08-15 12:22:08 +00:00