Commit Graph

13 Commits

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
Elad Cohen b107a22afb [X86] Remove the mm_malloc.h include guard hack from the X86 builtins tests
The X86 clang/test/CodeGen/*builtins.c tests define the mm_malloc.h include
guard as a hack for avoiding its inclusion (mm_malloc.h requires a hosted
environment since it expects stdlib.h to be available - which is not the case
in these internal clang codegen tests).
This patch removes this hack and instead passes -ffreestanding to clang cc1.

Differential Revision: https://reviews.llvm.org/D24825

llvm-svn: 282581
2016-09-28 11:59:09 +00:00
Eric Christopher abb2b54ad3 After PR28761 use -Wall with -Werror in builtins tests to identify
possible problems in headers.

llvm-svn: 277696
2016-08-04 06:02:50 +00:00
David Majnemer e2ae228c76 [X86] Pass __m64 types via SSE registers for GCC compatibility
For compatibility with GCC, classify __m64 as SSE.
However, clang is a platform compiler for certain targets; retain our
old behavior on those targets: classify __m64 as integer.

This fixes PR26832.

llvm-svn: 262688
2016-03-04 05:26:16 +00:00
Simon Pilgrim 474f24cc5e [X86][3DNow!] Stripped backend codegen tests
As discussed on the ml, backend tests need to be put in llvm/test/CodeGen/X86 as fast-isel tests using IR that is as close to what is generated here as possible.

The llvm tests will (re)added in a future commit

llvm-svn: 254849
2015-12-05 11:12:23 +00:00
Eric Christopher 2b2d56f059 Provide a frontend based error for always_inline functions that require
target features that the caller function doesn't provide. This matches
the existing backend failure to inline functions that don't have
matching target features - and diagnoses earlier in the case of
always_inline.

Fix up a few test cases that were, in fact, invalid if you tried
to generate code from the backend with the specified target features
and add a couple of tests to illustrate what's going on.

This should fix PR25246.

llvm-svn: 252834
2015-11-12 00:44:12 +00:00
Eric Christopher cd875efa78 Canonicalize some of the x86 builtin tests and either remove or comment
about optimization options.

llvm-svn: 250271
2015-10-14 05:40:21 +00:00
Simon Pilgrim e7708a84b9 [X86] Reapplied r246204, r246206, r246211, r246223
(Re)added debug codegen test for F16C, FMA4, XOP + 3DNow! intrinsics

Part of PR24590

llvm-svn: 246363
2015-08-29 17:13:40 +00:00
Renato Golin b9365ae36a Revert "[X86][3DNow] Added debug codegen test for 3DNow! intrinsics"
This reverts commit r246223, as it broke all ARM/AArch64 bots.

llvm-svn: 246323
2015-08-28 19:39:29 +00:00
Simon Pilgrim c7eaa17fe1 [X86][3DNow] Added debug codegen test for 3DNow! intrinsics
Part of PR24590

llvm-svn: 246223
2015-08-27 22:18:09 +00:00
Stephen Lin 4362261b00 CHECK-LABEL-ify some code gen tests to improve diagnostic experience when tests fail.
llvm-svn: 188447
2013-08-15 06:47:53 +00:00
Chandler Carruth a2a5410e6d Add 3dNOW intrinsic header to x86intrin.h, conditioned on __3dNOW__ to
match the behavior of GCC. Also add a test for these intrinsics, which
apparently have *zero* tests. =[ Not surprisingly, Clang crashed when
compiling these.

Fix the bug in CodeGen where we failed to bitcast the argument type to
x86mmx prior to calling the LLVM intrinsic. This fixes an assert on the
new 3dnow-builtins.c test.

This is one issue impacting the efforts to get Clang to emulate the
Microsoft intrinsics headers -- 3dnow intrinsics are implictitly made
available there.

llvm-svn: 150948
2012-02-20 07:35:45 +00:00