On Fri, 12 Feb 2021, Patrick Palka wrote:
> Here, the problem ultimately seems to be that tsubst_copy_and_build,
> when called with empty args as we do during non-dependent expression
> folding, doesn't touch BASELINKs at all: it delegates to tsubst_copy
> which then immediately exits early due to
Move custom macros to acinclude.m4 so we can autogenerate aclocal.m4
with aclocal. This matches every other project in the tree.
libiberty/ChangeLog:
* Makefile.in (ACLOCAL, ACLOCAL_AMFLAGS, $(srcdir)/aclocal.m4): Define.
(configure_deps): Rename to ...
(aclocal_deps): ..
The test case in PR 99074 invokes dynamic_cast with the this pointer
in a non-static member function called on a null pointer. The call
is, of course, undefined and other different circumstances would be
diagnosed by -Wnonnull. Unfortunately, in the test case, the null
pointer is the result of
The problem which accessing dim= for an expression is that
when the argument is an array, dim= and expr->rank are relative
to the resulting array – but the array-ref also contains the
DIMEN_ELEMENT which does not count for dim=/rank.
OK for the trunk? (Reported against GCC 11, but I wonder whethe
From: Levy Hsu
This expands sub-word loads as a zero/sign extended load, followed by
a subreg. This helps eliminate unnecessary zero/sign extend insns after
the load, particularly for volatiles, but also in some other cases.
Testing shows that it gives consistent code size decreases.
Tested wit
We already have a check for riscv_shorten_memrefs in riscv_address_cost.
This adds the same check to riscv_rtx_costs. Making this work also
requires a change to riscv_compressed_lw_address_p to work before reload
by checking the offset and assuming any pseudo reg is OK. Testing shows
that this co
*PIN*
On 09.02.21 12:52, Tobias Burnus wrote:
Hi all, hi Thomas,
On 02.02.21 18:15, Tobias Burnus wrote:
I think I will do a combination: If 'identical' is true, I think I
cannot remove it. If it is false, it can be identical or nonoverlapping
– which makes sense.
Well, it turned out that co
Hi, answers below. Note, do you want my resubmitted patch to be with
commit --amend, and therefore relative to "real" commits in the history,
or do you want me to chain it onto the last submission?
I have already sent to assign at gnu for the form.
I will update the commit message to call it s3 n
On February 13, 2021 4:07:03 PM GMT+01:00, Jakub Jelinek
wrote:
>On Sat, Feb 13, 2021 at 02:54:38PM +0100, Richard Biener wrote:
>> Ok. But if required splitting is an IL property maybe we can see sth
>like
>> RTL_split_insns, clear it from passes like selsched and gate split on
>the
>> property
On Sat, Feb 13, 2021 at 02:54:38PM +0100, Richard Biener wrote:
> Ok. But if required splitting is an IL property maybe we can see sth like
> RTL_split_insns, clear it from passes like selsched and gate split on the
> property and not being present?
I guess better would be to track it after reloa
On February 13, 2021 9:58:58 AM GMT+01:00, Jakub Jelinek
wrote:
>Hi!
>
>As mentioned in the PR, we have 5 split passes (+ splitting during
>final).
>split1 is before RA and is unconditional,
>split2 is after RA and is gated on optimize > 0,
>split3 is before sched2 and is gated on
>defined(INSN_S
I hope that writing the detailed commit message will encourage someone
with better knowledge of GCC internals to point out a better place for
this logic. I can follow through with any suggestions :)
On Sat, Feb 13, 2021 at 12:20:30PM +, Maya Rashish wrote:
> Some subtargets don't provide the c
Some subtargets don't provide the canonical function names as
the symbol name in C libraries, and libcalls will only work if
the builtins are patched to emit the correct library name.
For example, on NetBSD, cabsl has the symbol name __c99_cabsl,
and the patching is done via netbsd_patch_builtin.
Some subtargets don't provide the canonical function names as
the symbol name in C libraries, and libcalls will only work if
the builtins are patched to emit the correct library name.
For example, on NetBSD, cabsl has the symbol name __c99_cabsl,
and the patching is done via netbsd_patch_builtin.
On Sat, Feb 13, 2021 at 09:59:57AM +0100, Uros Bizjak wrote:
> BTW: I wonder if this optimization triggers frequently, the code in
> the PR looks quite useful.
On my next bootstrap/regtest I can gather some statistics.
Jakub
Hi!
The (mod @0 (convert?@3 (power_of_two_cand@1 @2))) simplification
uses tree_nop_conversion_p (type, TREE_TYPE (@3)) condition, but I believe
it doesn't check what it was meant to check. On convert?@3
TREE_TYPE (@3) is not the type of what it has been converted from, but
what it has been conve
On Sat, Feb 13, 2021 at 9:47 AM Jakub Jelinek wrote:
>
> Hi!
>
> Since the x86 backend enabled V2SImode vectorization (with
> TARGET_MMX_WITH_SSE), slp vectorization can kick in and emit
> movq(%rdi), %xmm1
> pshufd $225, %xmm1, %xmm0
> movq%xmm0, (%rdi)
> instead
Hi!
As mentioned in the PR, we have 5 split passes (+ splitting during final).
split1 is before RA and is unconditional,
split2 is after RA and is gated on optimize > 0,
split3 is before sched2 and is gated on
defined(INSN_SCHEDULING) && optimize > 0 && flag_schedule_insns_after_reload
split4 is
Hi!
Since the x86 backend enabled V2SImode vectorization (with
TARGET_MMX_WITH_SSE), slp vectorization can kick in and emit
movq(%rdi), %xmm1
pshufd $225, %xmm1, %xmm0
movq%xmm0, (%rdi)
instead of
rolq$32, (%rdi)
we used to emit (or emit when slp vector
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