On Thu, 2021-12-02 at 20:04 -0700, Jeff Law wrote:
>
> On 10/28/2021 10:39 AM, Richard Purdie wrote:
> > On Thu, 2021-10-28 at 08:51 -0600, Jeff Law wrote:
> > > On 10/27/2021 2:05 PM, Richard Purdie via Gcc-patches wrote:
> > > > OpenEmbedded/Yocto Project builds libgcc and the other gcc runtime
This moves the GTY declaration of the meta-data indentifier
array into the header that enumerates these and provides
shorthand defines for them. This avoids a problem seen with
a relocatable PCH implementation.
Tested on x86_64, i686 Darwin, pushed to master, thanks
Iain
Signed-off-by: Iain Sand
When compiling an optabs.ii at -O2 with a release-checking build,
the hottest function in the profile was irange_union. This patch
tries to optimise it a bit. The specific changes are:
- Use quick_push rather than safe_push, since the final number
of entries is known in advance.
- Avoid assig
Dear all,
the check of dummy arguments with pointer attribute and INTENT(IN)
was broken in the case the argument was passed to an intrinsic.
We therefore rejected valid code as e.g. given in the PR.
The patch relaxes the excessive check. This requires the adjustment
of one of the tests for MOVE_
When compiling an optabs.ii at -O2 with a release-checking build,
there were 6,643,575 calls to gimple_outgoing_range_stmt_p. 96.8% of
them were for blocks with a single successor, which never have a control
statement that generates new range info. This patch therefore adds a
shortcut for that ca
When compiling an optabs.ii at -O2 with a release-checking build,
we spent a lot of time in call_may_clobber_ref_p. One of the
first things the function tries is the get_modref_function_summary
approach, but that also seems to be the most expensive check.
At least for the optabs.ii test, most of t
When compiling an optabs.ii at -O2 with a release-checking build,
there were 210,172 calls to fold_view_convert_expr. 99.8% of them
were conversions of an INTEGER_CST to an ENUMERAL_TYPE, so this patch
adds a fast(er) path for that case.
Tested on aarch64-linux-gnu and x86_64-linux-gnu. OK to in
In self-compilations, GCC doesn't realise that gimple_seq_last
always returns nonnull when the argument is nonnull. Although
it's a small thing in itself, the function is used (indirectly)
many times and the extra null checks bloat what are otherwise
simple loops.
This patch adds an optimisation
Shadow Call Stack can be used to protect the return address of a
function at runtime, and clang already supports this feature[1].
To enable SCS in user mode, in addition to compiler, other support
is also required (as discussed in [2]). This patch only adds basic
support for SCS from the compiler
On Dec 3, 2021, Olivier Hainque wrote:
> Alex, how does that look to you?
LGTM, thanks,
--
Alexandre Oliva, happy hackerhttps://FSFLA.org/blogs/lxo/
Free Software Activist GNU Toolchain Engineer
Disinformation flourishes because many people care deeply
On 12/6/21 10:41 AM, Dan Li wrote:
Shadow Call Stack can be used to protect the return address of a
function at runtime, and clang already supports this feature[1].
To enable SCS in user mode, in addition to compiler, other support
is also required (as discussed in [2]). This patch only adds
When moves between integer and sse registers are cheap.
2021-12-06 Hongtao Liu
Uroš Bizjak
gcc/ChangeLog:
PR target/95740
* config/i386/i386.c (ix86_preferred_reload_class): Allow
integer regs when moves between register units are cheap.
* config/i
Forget --in-reply-to when git send-email.
> I was thinking about:
>
> --cut here--
> @@ -19194,9 +19194,17 @@ ix86_preferred_reload_class (rtx x,
> reg_class_t regclass)
> return NO_REGS;
> }
>
> - /* Prefer SSE regs only, if we can use them for math. */
> + /* Prefer SSE if we can us
On 2021/12/1 18:09, Richard Biener wrote:
> On Wed, Nov 10, 2021 at 4:08 AM Xionghu Luo wrote:
>>
>>
>>
>> On 2021/11/4 21:00, Richard Biener wrote:
>>> On Wed, Nov 3, 2021 at 2:29 PM Xionghu Luo wrote:
> + while (outmost_loop != loop)
> +{
> + if (bb_colder_tha
Hi Honza,
Gentle ping for this :), thanks.
https://gcc.gnu.org/pipermail/gcc-patches/2021-November/585289.html
On 2021/11/24 13:03, Xionghu Luo via Gcc-patches wrote:
> On 2021/11/23 17:50, Jan Hubicka wrote:
>>> On Tue, Nov 23, 2021 at 6:52 AM Xionghu Luo wrote:
r12-4526 cancelled j
On 2021/12/6 13:09, Xionghu Luo via Gcc-patches wrote:
>
>
> On 2021/12/1 18:09, Richard Biener wrote:
>> On Wed, Nov 10, 2021 at 4:08 AM Xionghu Luo wrote:
>>>
>>>
>>>
>>> On 2021/11/4 21:00, Richard Biener wrote:
On Wed, Nov 3, 2021 at 2:29 PM Xionghu Luo wrote:
>
>
>> +
On Sun, Dec 5, 2021 at 6:43 AM Richard Purdie via Gcc-patches
wrote:
>
> On Thu, 2021-12-02 at 20:04 -0700, Jeff Law wrote:
> >
> > On 10/28/2021 10:39 AM, Richard Purdie wrote:
> > > On Thu, 2021-10-28 at 08:51 -0600, Jeff Law wrote:
> > > > On 10/27/2021 2:05 PM, Richard Purdie via Gcc-patches w
On Fri, Dec 3, 2021 at 9:41 PM Andrew MacLeod via Gcc-patches
wrote:
>
> has_edge_range_p() and may_recompute_p() currently only take an optional
> edge as a parameter. They only indicate if a range *might* be
> calculated for a name, but they do not do any calculations.
>
> To determine the resu
On Fri, Dec 3, 2021 at 9:42 PM Andrew MacLeod via Gcc-patches
wrote:
>
> When a request is made for the range of an ssa_name at some location,
> the first thing we do is invoke range_of_stmt() to ensure we have looked
> at the definition and have an evaluation for the name at a global
> level. I
On Sun, Dec 5, 2021 at 10:55 PM Richard Sandiford via Gcc-patches
wrote:
>
> When compiling an optabs.ii at -O2 with a release-checking build,
> the hottest function in the profile was irange_union. This patch
> tries to optimise it a bit. The specific changes are:
>
> - Use quick_push rather th
On Sun, Dec 5, 2021 at 10:58 PM Richard Sandiford via Gcc-patches
wrote:
>
> When compiling an optabs.ii at -O2 with a release-checking build,
> there were 6,643,575 calls to gimple_outgoing_range_stmt_p. 96.8% of
> them were for blocks with a single successor, which never have a control
> statem
On Sun, Dec 5, 2021 at 10:59 PM Richard Sandiford via Gcc-patches
wrote:
>
> When compiling an optabs.ii at -O2 with a release-checking build,
> we spent a lot of time in call_may_clobber_ref_p. One of the
> first things the function tries is the get_modref_function_summary
> approach, but that a
On Sun, Dec 5, 2021 at 11:00 PM Richard Sandiford via Gcc-patches
wrote:
>
> When compiling an optabs.ii at -O2 with a release-checking build,
> there were 210,172 calls to fold_view_convert_expr. 99.8% of them
> were conversions of an INTEGER_CST to an ENUMERAL_TYPE, so this patch
> adds a fast(
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