Change the ffp-model=precise to enables -ffp-contract=on (previously
-ffp-model=precise enabled -ffp-contract=fast). This is a follow-up
to Andy Kaylor's comments in the llvm-dev discussion "Floating Point
semantic modes". From the same email thread, I put Andy's distillation
of floating point options and floating point modes into UsersManual.rst
Also fixes bugs.llvm.org/show_bug.cgi?id=50222
I had to revert this a few times because of failures on the x86-64
buildbot but I think we finally have that fixed by LNT/79f2b03c51.
Reviewed By: rjmccall, andrew.kaylor
Differential Revision: https://reviews.llvm.org/D74436
This patch changes the index argument of lvxl?/lve[bhw]x and
stvxl?/stve[bhw]x builtins from int to long. Because on 64-bit
subtargets, an extra extsw will always been generated, which is
incorrect.
Reviewed By: nemanjai
Differential Revision: https://reviews.llvm.org/D106530
Change the ffp-model=precise to enables -ffp-contract=on (previously
-ffp-model=precise enabled -ffp-contract=fast). This is a follow-up
to Andy Kaylor's comments in the llvm-dev discussion "Floating Point
semantic modes". From the same email thread, I put Andy's distillation
of floating point options and floating point modes into UsersManual.rst
Also fixes bugs.llvm.org/show_bug.cgi?id=50222
Reviewed By: rjmccall, andrew.kaylor
Differential Revision: https://reviews.llvm.org/D74436
This reverts commit a1449a10db.
Seems like my changes to LNT had no effect -- puzzled.
The 21 tests pass on my sandbox with the clang patch but are
failing in exec time in the bot
This patch changes the ffp-model=precise to enables -ffp-contract=on
(previously -ffp-model=precise enabled -ffp-contract=fast). This is a
follow-up to Andy Kaylor's comments in the llvm-dev discussion
"Floating Point semantic modes". From the same email thread, I put
Andy's distillation of floating point options and floating point modes
into UsersManual.rst
Differential Revision: https://reviews.llvm.org/D74436
This patch changes the ffp-model=precise to enables -ffp-contract=on
(previously -ffp-model=precise enabled -ffp-contract=fast). This is a
follow-up to Andy Kaylor's comments in the llvm-dev discussion
"Floating Point semantic modes". From the same email thread, I put
Andy's distillation of floating point options and floating point modes
into UsersManual.rst
Differential Revision: https://reviews.llvm.org/D74436
Change clang option -ffp-model=precise, the default, to select ffp-contract=on
The patch caused some problems for PowerPC but ibm has made
adjustments so I am resubmitting this patch. Additionally, Andy looked
at the performance regressions on LNT and it looks like a loop
unrolling decision that could be adjusted.
Reviewers: rjmccall, Andy Kaylor
Differential Revision: https://reviews.llvm.org/D74436
This reverts commit 0a1123eb43.
Want to revert this because it's causing trouble for PowerPC
I also fixed test fp-model.c which was looking for an incorrect error message
This reverts commit 99c5bcbce8.
Change clang option -ffp-model=precise to select ffp-contract=on
Including some small touch-ups to the original commit
Reviewers: rjmccall, Andy Kaylor
Differential Revision: https://reviews.llvm.org/D74436
__builtin_constant_p used to be short-cut evaluated to false when
building with -O0. This is undesirable as it means that constant folding
in the front-end can give different results than folding in the back-end.
It can also create conditional branches on constant conditions that don't
get folded away. With the pending improvements to the llvm.is.constant
handling on the LLVM side, the short-cut is no longer useful.
Adjust various codegen tests to not depend on the short-cut or the
backend optimisations.
Differential Revision: https://reviews.llvm.org/D67638
llvm-svn: 374742
Port emmintrin.h which include Intel SSE2 intrinsics implementation to PowerPC platform (using Altivec).
The new headers containing those implemenations are located into a directory named ppc_wrappers
which has higher priority when the platform is PowerPC on Linux. They are mainly developed by Steven Munroe,
with contributions from Paul Clarke, Bill Schmidt, Jinsong Ji and Zixuan Wu.
It's a follow-up patch of D62121.
Patched by: Qiu Chaofan <qiucf@cn.ibm.com>
Differential Revision: https://reviews.llvm.org/D62569
llvm-svn: 363122
Zahira Ammarguellat