llvm-project.git/clang/test/CodeGen/fp-floatcontrol-pragma.cpp, branch users/nico/python-2

Add support for floating-point option `ffp-eval-method` and for

2022-02-23T23:00:18+00:00

`pragma clang fp eval_method`.

Differential Revision: https://reviews.llvm.org/D109239

Revert "Add support for floating-point option `ffp-eval-method` and for"

2022-02-18T11:04:00+00:00

This reverts commit 32b73bc6ab8234b670c34d5ef999300e072cc706.

This breaks builds on macOS in some configurations, because
__FLT_EVAL_METHOD__ is set to an unexpected value.

E.g.
https://green.lab.llvm.org/green/job/clang-stage1-RA/28282/consoleFull#129538464349ba4694-19c4-4d7e-bec5-911270d8a58c

More details available in the review thread
https://reviews.llvm.org/D109239

Add support for floating-point option `ffp-eval-method` and for

2022-02-17T16:59:21+00:00

`pragma clang fp eval_method`.

https://reviews.llvm.org/D109239

Revert "Add support for floating-point option `ffp-eval-method` and for"

2022-02-16T03:02:25+00:00

This reverts commit 4bafe65c2b2f1ce745894a509a6d80c87fb1c335.
Breaks at least Misc/warning-flags.c, see comments on
https://reviews.llvm.org/D109239

Add support for floating-point option `ffp-eval-method` and for

2022-02-15T21:59:27+00:00

`pragma clang fp eval_method`.

Revert "[CLANG][PATCH][FPEnv] Add support for option -ffp-eval-method and extend #pragma float_control similarly"

2021-09-01T11:48:50+00:00

The intent of this patch is to add support of -fp-model=[source|double|extended] to allow
the compiler to use a wider type for intermediate floating point calculations. As a side
effect to that, the value of FLT_EVAL_METHOD is changed according to the pragma
float_control.
Unfortunately some issue was uncovered with this change in preprocessing. See details in
https://reviews.llvm.org/D93769 . We are therefore reverting this patch until we find a way
to reconcile the value of FLT_EVAL_METHOD, the pragma and the -E flow.

This reverts commit 66ddac22e2a7f268e91c26d694112970dfa607ae.

[CLANG][PATCH][FPEnv] Add support for option -ffp-eval-method and extend #pragma float_control similarly

2021-07-28T14:50:32+00:00

The Intel compiler ICC supports the option "-fp-model=(source|double|extended)"
which causes the compiler to use a wider type for intermediate floating point
calculations. Also supported is a way to embed this effect in the source
program with #pragma float_control(source|double|extended).
This patch extends pragma float_control syntax, and also adds support
for a new floating point option "-ffp-eval-method=(source|double|extended)".
source: intermediate results use source precision
double: intermediate results use double precision
extended: intermediate results use extended precision

Reviewed By: Aaron Ballman

Differential Revision: https://reviews.llvm.org/D93769

Revert "[CLANG][PATCH][FPEnv] Add support for option -ffp-eval-method and extend #pragma float_control similarly"

2021-07-20T20:40:55+00:00

This reverts commit ce8024e8ff76e7be8b9ffa1a39d1dc9310bf74c7.
There are a couple buildbot problems

[CLANG][PATCH][FPEnv] Add support for option -ffp-eval-method and extend #pragma float_control similarly

2021-07-20T20:02:09+00:00

The Intel compiler ICC supports the option "-fp-model=(source|double|extended)"
which causes the compiler to use a wider type for intermediate floating point
calculations. Also supported is a way to embed this effect in the source
program with #pragma float_control(source|double|extended).
This patch extends pragma float_control syntax, and also adds support
for a new floating point option "-ffp-eval-method=(source|double|extended)".
source: intermediate results use source precision
double: intermediate results use double precision
extended: intermediate results use extended precision

Reviewed By: Aaron Ballman

Differential Revision: https://reviews.llvm.org/D93769

[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences

2020-12-31T08:27:11+00:00

For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.

To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.

To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.