* [PATCH] Fix PR 101683: FP exceptions for float->unsigned
@ 2021-07-30 19:21 apinski
2021-08-02 9:58 ` Richard Biener
0 siblings, 1 reply; 2+ messages in thread
From: apinski @ 2021-07-30 19:21 UTC (permalink / raw)
To: gcc-patches; +Cc: Andrew Pinski
From: Andrew Pinski <apinski@marvell.com>
Just like the old bug PR9651, unsigned_fix rtl should
also be handled as a trapping instruction.
OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.
gcc/ChangeLog:
PR rtl-optimization/101683
* rtlanal.c (may_trap_p_1): Handle UNSIGNED_FIX.
---
gcc/rtlanal.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 3b8d88afd4d..f7f3acb75db 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -3261,6 +3261,7 @@ may_trap_p_1 (const_rtx x, unsigned flags)
break;
case FIX:
+ case UNSIGNED_FIX:
/* Conversion of floating point might trap. */
if (flag_trapping_math && HONOR_NANS (XEXP (x, 0)))
return 1;
--
2.27.0
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] Fix PR 101683: FP exceptions for float->unsigned
2021-07-30 19:21 [PATCH] Fix PR 101683: FP exceptions for float->unsigned apinski
@ 2021-08-02 9:58 ` Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2021-08-02 9:58 UTC (permalink / raw)
To: Andrew Pinski; +Cc: GCC Patches
On Fri, Jul 30, 2021 at 9:22 PM apinski--- via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> From: Andrew Pinski <apinski@marvell.com>
>
> Just like the old bug PR9651, unsigned_fix rtl should
> also be handled as a trapping instruction.
>
> OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.
OK.
> gcc/ChangeLog:
>
> PR rtl-optimization/101683
> * rtlanal.c (may_trap_p_1): Handle UNSIGNED_FIX.
> ---
> gcc/rtlanal.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
> index 3b8d88afd4d..f7f3acb75db 100644
> --- a/gcc/rtlanal.c
> +++ b/gcc/rtlanal.c
> @@ -3261,6 +3261,7 @@ may_trap_p_1 (const_rtx x, unsigned flags)
> break;
>
> case FIX:
> + case UNSIGNED_FIX:
> /* Conversion of floating point might trap. */
> if (flag_trapping_math && HONOR_NANS (XEXP (x, 0)))
> return 1;
> --
> 2.27.0
>
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2021-08-02 9:58 ` Richard Biener
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