soft-fp: Rename trunchfbf2.c to extendhfbf2.c

Message ID 20240501174419.591875-1-hjl.tools@gmail.com
State Superseded
Headers
Series soft-fp: Rename trunchfbf2.c to extendhfbf2.c |

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Context Check Description
redhat-pt-bot/TryBot-apply_patch success Patch applied to master at the time it was sent
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Commit Message

H.J. Lu May 1, 2024, 5:44 p.m. UTC
  Since bfloat16 has the same range as float32, bfloat16 to _Float16
conversion is an extension, not a truncation.  Rename trunchfbf2.c
to extendhfbf2.c to provide __extendhfbf2, instead of __trunchfbf2.
This fixes BZ #31690.
---
 soft-fp/{trunchfbf2.c => extendhfbf2.c} | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
 rename soft-fp/{trunchfbf2.c => extendhfbf2.c} (96%)
  

Comments

H.J. Lu May 1, 2024, 5:57 p.m. UTC | #1
On Wed, May 1, 2024 at 10:44 AM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> Since bfloat16 has the same range as float32, bfloat16 to _Float16
                                                                  This
should be _Float16 to bfloat16

Fixed in the v2 patch:

https://patchwork.sourceware.org/project/glibc/list/?series=33346

> conversion is an extension, not a truncation.  Rename trunchfbf2.c
> to extendhfbf2.c to provide __extendhfbf2, instead of __trunchfbf2.
> This fixes BZ #31690.
> ---
>  soft-fp/{trunchfbf2.c => extendhfbf2.c} | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>  rename soft-fp/{trunchfbf2.c => extendhfbf2.c} (96%)
>
> diff --git a/soft-fp/trunchfbf2.c b/soft-fp/extendhfbf2.c
> similarity index 96%
> rename from soft-fp/trunchfbf2.c
> rename to soft-fp/extendhfbf2.c
> index ad5fbbd654..3443948da3 100644
> --- a/soft-fp/trunchfbf2.c
> +++ b/soft-fp/extendhfbf2.c
> @@ -1,5 +1,5 @@
>  /* Software floating-point emulation.
> -   Truncate IEEE half into bfloat16.
> +   Extend IEEE half into bfloat16.
>     Copyright (C) 2022-2024 Free Software Foundation, Inc.
>     This file is part of the GNU C Library.
>
> @@ -36,7 +36,7 @@
>     truncate to BFtype.  */
>
>  BFtype
> -__trunchfbf2 (HFtype a)
> +__extendhfbf2 (HFtype a)
>  {
>    FP_DECL_EX;
>    FP_DECL_H (A);
> --
> 2.44.0
>
  

Patch

diff --git a/soft-fp/trunchfbf2.c b/soft-fp/extendhfbf2.c
similarity index 96%
rename from soft-fp/trunchfbf2.c
rename to soft-fp/extendhfbf2.c
index ad5fbbd654..3443948da3 100644
--- a/soft-fp/trunchfbf2.c
+++ b/soft-fp/extendhfbf2.c
@@ -1,5 +1,5 @@ 
 /* Software floating-point emulation.
-   Truncate IEEE half into bfloat16.
+   Extend IEEE half into bfloat16.
    Copyright (C) 2022-2024 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -36,7 +36,7 @@ 
    truncate to BFtype.  */
 
 BFtype
-__trunchfbf2 (HFtype a)
+__extendhfbf2 (HFtype a)
 {
   FP_DECL_EX;
   FP_DECL_H (A);