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Author SHA1 Message Date
Zahira Ammarguellat f04e387055 Making the code compliant to the documentation about Floating Point 
support default values for C/C++. FPP-MODEL=PRECISE enables
FFP-CONTRACT(FMA is enabled).

Fix for https://bugs.llvm.org/show_bug.cgi?id=50222
 2021-11-11 07:40:35 -05:00
Aaron Ballman 190bde404c Revert "Making the code compliant to the documentation about Floating Point" 
This reverts commit 438437cbb6.

There are still broken bots from this:

https://lab.llvm.org/buildbot/#/builders/188/builds/5495
https://lab.llvm.org/buildbot/#/builders/171/builds/5710
 2021-11-08 11:43:49 -05:00
Zahira Ammarguellat 438437cbb6 Making the code compliant to the documentation about Floating Point 
support default values for C/C++. FPP-MODEL=PRECISE enables FFP-CONTRACT
FMA is enabled.

Fix for https://bugs.llvm.org/show_bug.cgi?id=50222
 2021-11-08 08:35:19 -05:00
Nico Weber 0425087b8b Revert "Making the code compliant to the documentation about Floating Point" 
This reverts commit 17d9560294.
Breaks check-clang everywhere, see e.g.:
https://lab.llvm.org/buildbot/#/builders/105/builds/17229
https://lab.llvm.org/buildbot/#/builders/109/builds/25831
https://lab.llvm.org/buildbot/#/builders/188/builds/5493
https://lab.llvm.org/buildbot/#/builders/123/builds/7073
 2021-11-08 08:32:42 -05:00
Zahira Ammarguellat 17d9560294 Making the code compliant to the documentation about Floating Point 
support default values for C/C++. FPP-MODEL=PRECISE enables FFP-CONTRACT
FMA is enabled.

Fix for https://bugs.llvm.org/show_bug.cgi?id=50222
 2021-11-08 07:51:29 -05:00
Zahira Ammarguellat 4389a413e2 Revert "[clang][fpenv][patch] Change clang option -ffp-model=precise to select ffp-contract=on" 
This reverts commit 48ad446a0f.
 2021-08-06 12:01:47 -07:00
Melanie Blower 48ad446a0f [clang][fpenv][patch] Change clang option -ffp-model=precise to select ffp-contract=on 
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
 2021-07-27 13:55:31 -04:00
Melanie Blower 4296d633b0 Revert "[clang][fpenv][patch] Change clang option -ffp-model=precise to select ffp-contract=on" 
This reverts commit b9b696bba6.
Buildbot failures see https://lab.llvm.org/buildbot#builders/118/builds/4138
and https://lab.llvm.org/buildbot#builders/110/builds/5112
 2021-07-22 09:40:54 -04:00
Melanie Blower b9b696bba6 [clang][fpenv][patch] Change clang option -ffp-model=precise to select ffp-contract=on 
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
 2021-07-22 07:59:18 -04:00
Melanie Blower 9abaf5c359 Revert "[clang][FPEnv] Clang floatng point model ffp-model=precise enables ffp-contract=on" 
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
 2021-06-19 08:01:22 -04:00
Melanie Blower a1449a10db [clang][FPEnv] Clang floatng point model ffp-model=precise enables ffp-contract=on 
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
 2021-06-19 06:49:27 -04:00
Melanie Blower c3cc14f87f Revert "[clang][FPEnv] Clang floatng point model ffp-model=precise enables ffp-contract=on" 
This reverts commit 8daac37140.
The build bots are showing some fails on broadwell and arm.
Fix to LNT test suite needs work.
 2021-06-10 12:19:02 -04:00
Melanie Blower 8daac37140 [clang][FPEnv] Clang floatng point model ffp-model=precise enables ffp-contract=on 
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
 2021-06-10 09:30:41 -04:00
Adam Nemet 3087c96348 Change -ffp-contract=fast test to run on Aarch64 
(I don't have powerpc enabled in my build and I am changing
how -ffp-contract=fast works.)

llvm-svn: 298468
 2017-03-22 00:58:15 +00:00
NAKAMURA Takumi 7cbe30fc43 clang/test: REQUIRES: s/ppc{32|64}-registered-target/powerpc-registered-target/ 
llvm-svn: 196349
 2013-12-04 03:41:15 +00:00
Lang Hames 5de91cc35f Add FP_CONTRACT support for clang. 
Clang will now honor the FP_CONTRACT pragma and emit LLVM
fmuladd intrinsics for expressions of the form A * B + C (when they occur in a
single statement).

llvm-svn: 164989
 2012-10-02 04:45:10 +00:00