From: Richard Earnshaw <rearnsha@arm.com>
To: Charles Baylis <charles.baylis@linaro.org>
Cc: "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>,
Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>
Subject: Re: [PATCH 2/9] Add comments
Date: Wed, 11 Jun 2014 12:55:00 -0000 [thread overview]
Message-ID: <539851CA.60500@arm.com> (raw)
In-Reply-To: <1402481995-12749-2-git-send-email-charles.baylis@linaro.org>
On 11/06/14 11:19, Charles Baylis wrote:
> 2014-05-22 Charles Baylis <charles.baylis@linaro.org>
>
> * config/arm/bpabi.S (__aeabi_uldivmod, __aeabi_ldivmod): Add comment
> describing register usage on function entry and exit.
OK.
R.
> ---
> libgcc/config/arm/bpabi.S | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/libgcc/config/arm/bpabi.S b/libgcc/config/arm/bpabi.S
> index f47d715..ae76cd3 100644
> --- a/libgcc/config/arm/bpabi.S
> +++ b/libgcc/config/arm/bpabi.S
> @@ -122,6 +122,14 @@ ARM_FUNC_START aeabi_ulcmp
>
> #ifdef L_aeabi_ldivmod
>
> +/* Perform 64 bit signed division.
> + Inputs:
> + r0:r1 numerator
> + r2:r3 denominator
> + Outputs:
> + r0:r1 quotient
> + r2:r3 remainder
> + */
> ARM_FUNC_START aeabi_ldivmod
> cfi_start __aeabi_ldivmod, LSYM(Lend_aeabi_ldivmod)
> test_div_by_zero signed
> @@ -145,6 +153,14 @@ ARM_FUNC_START aeabi_ldivmod
>
> #ifdef L_aeabi_uldivmod
>
> +/* Perform 64 bit signed division.
> + Inputs:
> + r0:r1 numerator
> + r2:r3 denominator
> + Outputs:
> + r0:r1 quotient
> + r2:r3 remainder
> + */
> ARM_FUNC_START aeabi_uldivmod
> cfi_start __aeabi_uldivmod, LSYM(Lend_aeabi_uldivmod)
> test_div_by_zero unsigned
>
next prev parent reply other threads:[~2014-06-11 12:55 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-22 10:08 [PATCH, ARM, v2] Improve 64 bit division performance Charles Baylis
2014-06-11 9:30 ` Charles Baylis
2014-06-11 9:33 ` Richard Earnshaw
2014-06-11 10:20 ` [PATCH 1/9] Whitespace Charles Baylis
2014-06-11 10:20 ` [PATCH 4/9] Optimise __aeabi_uldivmod Charles Baylis
2014-06-18 13:53 ` Richard Earnshaw
2014-06-11 10:20 ` [PATCH 9/9] Remove __gnu_uldivmod_helper Charles Baylis
2014-06-18 14:09 ` Richard Earnshaw
2014-06-11 10:20 ` [PATCH 7/9] Fix cfi annotations Charles Baylis
2014-06-18 14:04 ` Richard Earnshaw
2014-06-11 10:20 ` [PATCH 3/9] Optimise __aeabi_uldivmod (stack manipulation) Charles Baylis
2014-06-18 13:52 ` Richard Earnshaw
2014-06-11 10:20 ` [PATCH 2/9] Add comments Charles Baylis
2014-06-11 12:55 ` Richard Earnshaw [this message]
2014-06-11 10:20 ` [PATCH 8/9] Use __udivmoddi4 for v6M aeabi_uldivmod Charles Baylis
2014-06-18 14:04 ` Richard Earnshaw
2014-06-11 10:20 ` [PATCH 5/9] Optimise __aeabi_ldivmod (stack manipulation) Charles Baylis
2014-06-18 13:53 ` Richard Earnshaw
2014-06-11 10:20 ` [PATCH 6/9] Optimise __aeabi_ldivmod Charles Baylis
2014-06-18 14:03 ` Richard Earnshaw
2014-06-11 12:55 ` [PATCH 1/9] Whitespace Richard Earnshaw
2014-06-18 15:55 ` Charles Baylis
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