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| author | Matthew Malcomson <matthew.malcomson@arm.com> | 2019-11-07 17:07:32 +0000 |
|---|---|---|
| committer | Matthew Malcomson <matthew.malcomson@arm.com> | 2019-11-07 17:07:32 +0000 |
| commit | eb5bbc482128b08d2ee8a2470951a74d8351146f (patch) | |
| tree | b528a83fba70f26f1c1669cbb3c6a1a107006622 /include | |
| parent | 27cce8667f5c897751bb10d7c859b02b0bb26291 (diff) | |
| download | fsf-binutils-gdb-eb5bbc482128b08d2ee8a2470951a74d8351146f.zip fsf-binutils-gdb-eb5bbc482128b08d2ee8a2470951a74d8351146f.tar.gz fsf-binutils-gdb-eb5bbc482128b08d2ee8a2470951a74d8351146f.tar.bz2 | |
[Patch][binutils][aarch64] .bfloat16 directive for AArch64 [7/10]
Hi,
This patch is part of a series that adds support for Armv8.6-A
(Matrix Multiply and BFloat16 extensions) to binutils.
This patch implements the '.bfloat' directive for the AArch64 backend.
The syntax for the directive is:
.bfloat16 <0-n numbers>
e.g.
.bfloat16 12.0
.bfloat16 0.123, 1.0, NaN, 5
This is implemented by utilizing the ieee_atof_detail function in order
to encode the slightly
different bfloat16 format.
Added testcases to verify the correct encoding for various bfloat16
values (NaN, Infinity (+ & -), normals, subnormals etc...).
Cross compiled and tested on aarch64-none-elf and aarch64-none-linux-gnu
with no issues.
Committed on behalf of Mihail Ionescu.
gas/ChangeLog:
2019-10-29 Mihail Ionescu <mihail.ionescu@arm.com>
2019-10-29 Barnaby Wilks <barnaby.wilks@arm.com>
* config/tc-aarch64.c (md_atof): Add encoding for the bfloat16 format.
* testsuite/gas/aarch64/bfloat16-directive-le.d: New test.
* testsuite/gas/aarch64/bfloat16-directive-be.d: New test.
* testsuite/gas/aarch64/bfloat16-directive.s: New test.
Is it ok for trunk?
Regards,
Mihail
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