: Vineet Gupta
> Sent: 28 September 2023 22:44
> To: gcc-patches@gcc.gnu.org; Robin Dapp
> Cc: kito.ch...@gmail.com; Jeff Law ; Palmer Dabbelt
> ; gnu-toolch...@rivosinc.com; Roger Sayle
> ; Jakub Jelinek ; Jivan
> Hakobyan ; Vineet Gupta
> Subject: [RFC] expr: don't clear SUBREG
ed on a cross-compiler to arc-linux (hosted on x86_64-pc-linux-gnu),
and a partial tool chain, where the new case passes and there are no
new regressions. Ok for mainline?
2023-09-29 Roger Sayle
gcc/ChangeLog
* config/arc/arc.md (CC_ltu): New mode iterator for CC and CC_C.
(s
someone could double check there are no issues on real hardware that
would be great. I'm not sure if ARC is one of the targets covered by Jeff
Law's
compile farm?
> -Original Message-
> From: Roger Sayle
> Sent: Friday, September 29, 2023 6:54 PM
> To: gcc-pat
ks again.
Roger
--
> -Original Message-
> From: Claudiu Zissulescu
> Sent: 03 October 2023 15:26
> To: Roger Sayle ; gcc-patches@gcc.gnu.org
> Subject: RE: [ARC PATCH] Split SImode shifts pre-reload on
> !TARGET_BARREL_SHIFTER.
>
> Hi Roger,
>
> It was nice to meet you
There are a small handful of middle-end maintainers/reviewers that
understand and appreciate the difference between the RTL statements:
(set (subreg:HI (reg:SI x)) (reg:HI y))
and
(set (strict_lowpart:HI (reg:SI x)) (reg:HI y))
If one (or more) of them could please take a look at
https:
host compiler.
Ok for mainline?
2023-10-04 Roger Sayle
gcc/ChangeLog
* rtl.h (rtx_def::u): Add explicit constructor to workaround
issue using g++ 4.8 as a host compiler.
diff --git a/gcc/rtl.h b/gcc/rtl.h
index 6850281..a7667f5 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -451,6 +
27;
with no new failures. Additional testing was performed by repeating
these steps after removing the "optimize_size > 1" condition, so that
suitable lea instructions were always split [-Oz is not heavily
tested, so this invoked the new code during the bootstrap and
regression testing]
ithout --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-10-05 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.cc (ix86_split_ashl): Split shifts by
one into add3_cc_overflow_1 followed by add3_carry.
* config/i386/i386.md (@add3_cc_over
Doh! ENOPATCH.
> -Original Message-
> From: Roger Sayle
> Sent: 05 October 2023 12:44
> To: 'gcc-patches@gcc.gnu.org'
> Cc: 'Uros Bizjak'
> Subject: [X86 PATCH] Implement doubleword shift left by 1 bit using
add+adc.
>
>
> This patc
Hi Uros,
Very many thanks for the speedy reviews.
Uros Bizjak wrote:
> On Thu, Oct 5, 2023 at 11:06 AM Roger Sayle
> wrote:
> >
> >
> > This patch avoids long lea instructions for performing x<<2 and x<<3
> > by splitting them into shorter sal and mov
board=unix{-m32}
with no new failures. And to provide additional testing, I've also
bootstrapped and regression tested a version of this patch where the
RCR is always generated (independent of the -march target) again with
no regressions. Ok for mainline?
2023-10-06 Roger Sayle
gcc/Cha
Grr! I've done it again. ENOPATCH.
> -Original Message-
> From: Roger Sayle
> Sent: 06 October 2023 14:58
> To: 'gcc-patches@gcc.gnu.org'
> Cc: 'Uros Bizjak'
> Subject: [X86 PATCH] Implement doubleword right shifts by 1 bit using
s[ha]r+r
2: # end single insn loop
j_s [blink]
This patch has been tested with a cross-compiler to arc-linux hosted
on x86_64-pc-linux-gnu and (partially) tested with the compile-only
portions of the testsuite with no regressions. Ok for mainline, if
your own testing shows no issues?
patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check with no new failures. Ok for mainline?
2023-10-10 Roger Sayle
gcc/ChangeLog
PR middle-end/101955
PR tree-optimization/106245
* simplify-rtx.c (simplify_relational_operation_1):
ke -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-10-14 Roger Sayle
gcc/ChangeLog
PR rtl-optimization/91865
* combine.cc (make_compound_operation): Avoid creating a
ZERO_EXTEND of a ZERO_EXTEND.
gcc/testsuit
ck, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-10-15 Roger Sayle
gcc/ChangeLog
* optabs.cc (expand_subword_shift): Call simplify_expand_binop
instead of expand_binop. Optimize cases (i.e. avoid generating
RTL) when CARRIES
This patch adds a pre-reload splitter to arc.md, to use the bset (set
specific bit instruction) to implement 1<
gcc/ChangeLog
* config/arc/arc.md (*ashlsi3_1): New pre-reload splitter to
use bset dst,0,src to implement 1<
I've done it again. ENOPATCH.
From: Roger Sayle
Sent: 15 October 2023 09:13
To: 'gcc-patches@gcc.gnu.org'
Cc: 'Claudiu Zissulescu'
Subject: [ARC PATCH] Split asl dst,1,src into bset dst,0,src to implement
1<mailto:ro...@nextmovesoftware.com> >
gcc/Chan
Hi Jeff,
Thanks for the speedy review(s).
> From: Jeff Law
> Sent: 15 October 2023 00:03
> To: Roger Sayle ; gcc-patches@gcc.gnu.org
> Subject: Re: [PATCH] PR 91865: Avoid ZERO_EXTEND of ZERO_EXTEND in
> make_compound_operation.
>
> On 10/14/23 16:14, Roger Sayle wrote:
n
and release notes need updating, if my fix isn't considered acceptable?
Why this patch is an trigger issue (that requires significant discussion
and deliberation) is somewhat of a mystery.
Thanks in advance.
Roger
> -Original Message-
> From: Jeff Law
> Sent: 07 October
oth Intel and AMD; Intel sees only a
2% improvement (perhaps just a size effect), but AMD sees a 7% win.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-10-17 R
Hi Uros,
Thanks for the speedy review.
> From: Uros Bizjak
> Sent: 17 October 2023 17:38
>
> On Tue, Oct 17, 2023 at 3:08 PM Roger Sayle
> wrote:
> >
> >
> > This patch is the backend piece of a solution to PRs 101955 and
> > 106245, that adds a define
mainline?
2023-10-17 Roger Sayle
gcc/ChangeLog
PR target/110511
* config/i386/i386.md (mul3): Make operands 1 and
2 take "regiser_operand" and "nonimmediate_operand" respectively.
(mulqihi3): Likewise.
(*bmi2_umul3_1): Operand 2 needs to
-
> From: Roger Sayle
> Sent: 17 October 2023 20:06
> To: 'gcc-patches@gcc.gnu.org'
> Cc: 'Uros Bizjak'
> Subject: [x86 PATCH] PR target/110511: Fix reg allocation for widening
> multiplications.
>
>
> This patch contains clean-ups of the widening mult
.
Best regards,
Roger
--
> -Original Message-
> From: Thomas Schwinge
> Sent: 18 October 2023 11:16
> To: Tobias Burnus
> Cc: gcc-patches@gcc.gnu.org; Tom de Vries ; Roger Sayle
>
> Subject: Re: [Patch] nvptx: Use fatal_error when -march= is missing not an
> assert
&g
heck, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-05-23 Roger Sayle
gcc/ChangeLog
* simplify-rtx.cc (simplify_binary_operation_1) : Use wide-int
instead of HWI_COMPUTABLE_MODE_P and UINTVAL in transformation of
(and (exten
s that
it doesn't understand/recognize.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-05-26 Roger Sayle
gcc/ChangeLog
* simplify-rtx.cc (simp
ng wi::bswap.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-05-28 Roger Sayle
gcc/ChangeLog
* fold-const-call.cc (fold_const_call_ss) :
Update ca
oth with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-05-29 Roger Sayle
gcc/ChangeLog
PR targt/109973
* config/i386/i386-builtin.def (__builtin_ia32_ptestz128): Use new
CODE_for_sse4_1_ptestzv2di.
(__builtin_ia32_ptestc128):
pport for a
backend-independent solution to PR middle-end/50481.
2023-06-02 Roger Sayle
gcc/ChangeLog
* wide-int.cc (wi::bitreverse_large): New function implementing
bit reversal of an integer.
* wide-int.h (wi::bitreverse): New (template) function prot
Doh! Wrong patch...
Roger
--
-Original Message-
From: Roger Sayle
Sent: Friday, June 2, 2023 3:17 PM
To: 'gcc-patches@gcc.gnu.org'
Cc: 'Richard Sandiford'
Subject: [PATCH] New wi::bitreverse function.
This patch provides a wide-int implementation of bitreve
]))
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-06-03 Roger Sayle
gcc/ChangeLog
PR target/110083
* config/i386/i386-features.cc (sc
setc%al
movl%edx, o2(%rip)
movzbl %al, %eax
ret
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2022-06-03 Roger Sayle
].
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2022-06-06 Roger Sayle
Uros Bizjak
gcc/ChangeLog
* config/i386/i386-expand.cc (ix86_expand_builtin
se,
and this is holding up real improvements on current processors.
cmc, for example, should allow for better cmov if-conversion.
Thanks in advance.
Roger
--
-Original Message-
From: Uros Bizjak
Sent: 06 June 2023 18:34
To: Roger Sayle
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [x86 PATCH] Add
sting peephole2 described above.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-06-07 Roger Sayle
gcc/ChangeLog
PR target/110104
* config/i386/i3
with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-06-07 Roger Sayle
gcc/ChangeLog
PR target/31985
* config/i386/i386.md (*add3_doubleword_concat): New
define_insn_and_split combine
Hi Jakub,
Jakub Jelinek wrote:
> Seems to be pretty much the same as one of the 12 define_peephole2
patterns I've posted in
https://gcc.gnu.org/pipermail/gcc-patches/2023-June/620821.html
Doh! Impressive work. I need to study how you handle constant carry flags.
Fingers-crossed that patches th
gcc.target/nvptx/brevll-2.c. Committed as obvious.
2023-06-07 Roger Sayle
gcc/ChangeLog
* wide-int.cc (wi::bitreverse_large): Use HOST_WIDE_INT_1U to
avoid sign extension/undefined behaviour when setting each bit.
Thanks,
Roger
--
diff --git a/gcc/wide-int.cc b/gcc/wide-int.cc
tested on nvptx-none with make and make -k check
with no new failures. Ok for mainline?
2023-06-07 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (UNSPEC_BITREV): Delete.
(bitrev2): Represent using bitreverse.
Thanks in advance,
Roger
--
diff --git a/gcc/config/nvptx
just close PR 109973 in Bugzilla?
2023-06-10 Roger Sayle
Uros Bizjak
gcc/ChangeLog
PR target/109973
PR target/110083
* config/i386/i386-builtin.def (__builtin_ia32_ptestz128): Use new
CODE_for_sse4_1_ptestzv2di.
(__builtin_ia32_ptestc128
een tested on x86_64-pc-linux-gnu with a make bootstrap
and make -k check, both with and without --target_board=unix{-m32}, with
no new failures. Ok for mainline?
2023-06-11 Roger Sayle
gcc/ChangeLog
* expr.cc (store_constructor) : Don't bother
clearing vectors with on
also
help other backends with condition flags where the equality result can
be materialized.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-06-12 Roge
th make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-06-13 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.cc (ix86_expand_sse_ptest): Recognize
expansion of ptestc with equal operands as returning con
and make -k check, with and without -m32, to confirm
there are no issues, and this still fixes the pr31985.c test case.
As you've suggested, I'm also working on improving STV in this area.
Ok for mainline?
2023-06-15 Roger Sayle
Uros Bizjak
gcc/ChangeLog
> From: Hongtao Liu
> Sent: 12 July 2023 01:45
>
> On Wed, Jul 12, 2023 at 4:57 AM Roger Sayle
> > > From: Hongtao Liu
> > > Sent: 28 June 2023 04:23
> > > > From: Roger Sayle
> > > > Sent: 27 June 2023 20:28
> > > >
>
hopefully
change dramatically with the next pieces. Ok for mainline?
2023-07-13 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.cc (ix86_expand_move): Generalize special
case inserting of 64-bit values into a TImode register, to handle
both DImode and DFmode using either
w failures. Ok for mainline?
2023-07-13 Roger Sayle
gcc/ChangeLog
PR target/110588
* config/i386/i386.md (*bt_setcqi): Prefer string form
preparation statement over braces for a single statement.
(*bt_setncqi): Likewise.
(*bt_setncqi_2): New define_insn
> From: Uros Bizjak
> Sent: 13 July 2023 19:21
>
> On Thu, Jul 13, 2023 at 7:10 PM Roger Sayle
> wrote:
> >
> > This patch resolves PR target/110588 to catch another case in combine
> > where the i386 backend should be generating a btl instruction. This
>
This patch fixes the bootstrap failure I'm seeing using gcc 4.8.5 as
the host compiler. Ok for mainline? [I might be missing something]
2023-07-14 Roger Sayle
gcc/ChangeLog
* tree-if-conv.cc (predicate_scalar_phi): Make the arguments
to the std:
sted on x86_64-pc-linux-gnu with make
> > > bootstrap and make -k check, both with and without
> > > --target_board=unix{-m32} with no new failures. Ok for mainline?
> > >
> > >
> > > 2023-07-11 Roger Sayle
> > >
> > > gcc/Chan
)
vmovsd -16(%rsp), %xmm1
vmovsd -24(%rsp), %xmm0
ret
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-07-19 Roger Sayle
gcc/ChangeLog
th no new failures. Ok for mainline?
2023-07-19 Roger Sayle
gcc/ChangeLog
PR c/110699
* gimplify.cc (gimplify_compound_lval): For ARRAY_REF and
ARRAY_RANGE_REF return GS_ERROR if the array's type is
error_mark_node.
gcc/testsuite/ChangeLog
P
Hi Uros,
> From: Uros Bizjak
> Sent: 20 July 2023 07:50
>
> On Wed, Jul 19, 2023 at 10:07 PM Roger Sayle
> wrote:
> >
> > This patch is the next piece of a solution to the x86_64 ABI issues in
> > PR 88873. This splits the *concat3_3 define_insn_a
he regression that I've caused.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-07-22 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expan
imply ensure that
we continue to generate the same code (match revised patterns) as before.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2023-07-22 Roger Sayle
patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, with no new failures. Ok for mainline?
2023-07-22 Roger Sayle
gcc/ChangeLog
PR middle-end/28071
PR rtl-optimization/110587
* lra-spills.cc (return_regno_p): Change argument and rename to
lying cause.
Committed as obvious.
2023-07-23 Roger Sayle
gcc/ChangeLog
PR target/110787
PR target/110790
Revert patch.
* config/i386/i386.md (extv): Use QImode for offsets.
(extzv): Likewise.
(insv): Likewise.
(*testqi_
quickly if there's a problem,
and investigate why this additional copy might (still) be needed on other
non-x86 targets.
2023-07-25 Roger Sayle
gcc/ChangeLog
PR middle-end/28071
PR rtl-optimization/110587
* expr.cc (emit_group_load_1): Avoid copying a pseudo register int
submitted as a follow-up, but this is
the piece that addresses the wrong code regression.
2023-07-26 Roger Sayle
gcc/ChangeLog
PR rtl-optimization/110701
* combine.cc (record_dead_and_set_regs_1): Split comment into
pieces placed before the relevant clauses. When
h the code looks dead, it's required to build
libgcc during
a bootstrap. But the remaining clean-up is good, reducing the number of source
lines
and making the logic easier to understand.
Ok for mainline?
2023-07-27 Roger Sayle
Richard Biener
gcc/ChangeLog
PR m
tstrap and make -k check, both
with and without --target_board=unix{-m32} with no new failures.
Committed to mainline as an obvious fix to the previously approved
patch. Sorry again for the temporary inconvenience, and thanks to
Rainer Orth for identifying/confirming the problematic patch.
without --target_board=unix{-m32}
with no new failures. Committed to mainline as obvious.
2023-07-31 Roger Sayle
gcc/ChangeLog
PR target/110843
* config/i386/i386-features.cc (compute_convert_gain): Check
TARGET_AVX512VL (not TARGET_AVX512F) when considering V2DImode
ask the x86 experts for their opinions.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-,32},
with no new failures. Ok for mainline?
2022-06-30 Roger Sayle
gcc/ChangeLog
* config/i386/i386-builtin.
ux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2022-06-30 Roger Sayle
gcc/ChangeLog
PR target/106122
* config/i386/i386.md (peephole2): Avoid generating pop %esp
when optimizing
e building the tree with a non-default architecture that enables
BMI.
2022-07-01 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
* config/i386/i386.md (*andn3_doubleword_bmi): Add constraints
to post-reload define_insn_and_split.
Roger
--
diff --git a/gcc/config/i386/i38
commutativity.
This revised patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32} with no
new failures. Ok for mainline?
2022-07-04 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
PR rtl-optimization/96692
-k check, both with and with --target_board=unix{-32},
with no new failures. Is this revised version Ok for mainline?
2022-07-04 Roger Sayle
Hongtao Liu
gcc/ChangeLog
* config/i386/i386-builtin.def (__builtin_ia32_palignr128): Change
CODE_FOR_ssse3_palignrti to
cc.target/i386/pr65105-5.c now also
fails (as that code diverges further from the expected vectorized
output). This is progress as both FAILs in pr65105-5.c may now be
fixed by changes localized to the STV pass. OK for mainline?
2022-07-04 Roger Sayle
gcc/ChangeLog
* confi
patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, where with --target_board=unix{-m32} there are two
fewer failures, and without, there are no new failures.
Ok for mainline?
2022-07-07 Roger Sayle
gcc/ChangeLog
* config/i386/i386-features.cc (conver
type here.
Many thanks in advance,
Roger
--
> -Original Message-
> From: Kewen.Lin
> Sent: 27 June 2022 10:04
> To: Roger Sayle
> Cc: gcc-patches@gcc.gnu.org; Segher Boessenkool
> ; David Edelsohn
> Subject: Re: [rs6000 PATCH] Improve constant integer multiply usi
tting this middle-end piece
independently, to confirm that maintainers/reviewers are happy with
the approach, and also to check there are no issues on other platforms,
before building upon this infrastructure.
Thoughts? Ok for mainline?
2022-07-07 Roger Sayle
gcc/ChangeLog
* simplif
to explain why that change is needed.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32} with
no new failures. Ok for mainline?
2022-07-08 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.cc (ix86
branch?
2022-07-09 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
PR target/105930
* config/i386/i386.md (*di3_doubleword): Split after
reload. Use rtx_equal_p to avoid creating memory-to-memory moves,
and emit NOTE_INSN_DELETED if operand[2] is zero (i.e
_gain doesn't yet have its final (tuned) form,
but is already an improvement over the "return 1;" used previously.
This patch has been tested on x86_64-pc-linux-gnu with make boostrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainl
oss-compilers, but if
Jeff Law could spin this patch on his build farm, that would help
identify targets that need attention.
2022-07-10 Roger Sayle
gcc/ChangeLog
* bb-reorder.cc (reorder_basic_blocks): bb_reorder_complete is
now a bit in crtl->rtl_pass_progress.
* c
on" changes
if those modifications are pushed independently of these ones.
Time to look into the (git) history of multiple STV passes...
Thanks for the review. I'll wait for HJ's thoughts.
Cheers,
Roger
--
> -Original Message-
> From: Uros Bizjak
> Sent: 10 July 202
> -Original Message-
> From: H.J. Lu
> Sent: 10 July 2022 20:15
> To: Roger Sayle
> Cc: Uros Bizjak ; GCC Patches
> Subject: Re: [x86_64 PATCH] Improved Scalar-To-Vector (STV) support for
> TImode to V1TImode.
>
> On Sun, Jul 10, 2022 at 11:36 AM Roger Sayle
>
On 11 July 2022 08:20, Richard Biener wrote:
> On Sun, 10 Jul 2022, Roger Sayle wrote:
>
> > This patch builds upon Richard Biener's suggestion of avoiding global
> > variables to track state/identify which passes have already been run.
> > In the early middle-end
On Mon, Jul 11, 2022, H.J. Lu wrote:
> On Sun, Jul 10, 2022 at 2:38 PM Roger Sayle
> wrote:
> > Hi HJ,
> >
> > I believe this should now be handled by the post-reload (CSE) pass.
> > Consider the simple test case:
> >
> > __int128 a, b, c;
> > vo
ithout --target_board=unix{-m32},
with no new failures. Ok for mainline?
2022-07-14 Roger Sayle
gcc/ChangeLog
PR target/106278
* config/i386/i386-features.cc (general_scalar_chain::convert_insn):
Fix indentation whitespace.
(timode_scalar_chain
ruction which can
lead to the overlapping cases described above.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32} with
no new failures. Ok for mainline?
2022-07-15 Roger Sayle
gcc/Ch
out --target-board=unix{-m32},
with no new failures. Ok for mainline?
2022-07-16 Roger Sayle
gcc/ChangeLog
* config/i386/predicates.md (x86_64_const_vector_operand):
Check the operand's mode matches the specified mode argument.
Thanks in advance,
Roger
--
diff --git a/gc
ew failures. Ok for mainline?
2022-07-16 Roger Sayle
gcc/ChangeLog
PR c/106264
* builtins.cc (fold_builtin_frexp): Set TREE_NO_WARNING on
COMPOUND_EXPR to silence spurious warning if result isn't used.
(fold_builtin_modf): Likewise.
(do_mpfr_remquo):
ions.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32}
with no new failures. Ok for mainline?
2022-07-16 Roger Sayle
gcc/ChangeLog
* config/i386/sse.md (kunpckhi): Add UNSPEC_MASKOP unspec.
failures. Ok for mainline?
2022-07-16 Roger Sayle
gcc/ChangeLog
PR target/106231
* config/i386/i386.md (*ctzsidi2_ext): New insn_and_split
to recognize any_extend:DI of ctz:SI which is implicitly extended.
(*ctzsidi2_ext_falsedep): New define_insn to model a DImode
rther
changes. As each chain is removed from consideration, it in turn may
affect whether other insns/chains can safely be converted.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32},
with no new failures. Ok
le word is constructed from its high and low parts, but the wrong
way around.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without -target_board=unix{-m32},
with no new failures. Ok for mainline?
2022-07-23 Roger Sayle
ine (to document the actual current behavior)?
2022-07-23 Roger Sayle
gcc/ChangeLog
* doc/rtl.texi (use): Document that the operand may be a MEM.
Roger
--
diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi
index 43c9ee8..995c8be 100644
--- a/gcc/doc/rtl.texi
+++ b/gcc/doc/rtl.tex
end patch, so for now I'm only looking for approval
of the middle-end infrastructure pieces. The x86 hunks below are
provided as context/documentation for how this hook could/should be
used (but I wouldn't object to pre-approval of those bits by Uros).
Ok for mainline?
2022-07-26 Roger Say
2022-07-26 Roger Sayle
gcc/ChangeLog
PR target/104489
* calls.cc (emit_library_call_value_1): Enable the FP return value
of a libcall to be returned as a wider integer, by converting the
int result to be converted to the desired floating point mode.
(sto
ntation of the SUBREG rtx specifies.
If you don't believe that op0 and op1 can ever both be const_int
in this function, perhaps consider it harmless dead code and humor
me.
Thanks in advance,
Roger
--
> -Original Message-
> From: Segher Boessenkool
> Sent: 26 July 2022 18:45
Hi Segher,
> Thank you for telling the maintainer of combine the basics of what all of
this
> does! I hadn't noticed any of that before.
You're welcome. I've also been maintaining combine for some time now:
https://gcc.gnu.org/legacy-ml/gcc/2003-10/msg00455.html
> They can be, as clearly docum
nd without --target_board=unix{-m32},
with no new failures. Testing with CSiBE shows these transformations
trigger on several source files (and with -Os reduces the size of the
code). Ok for mainline?
2022-07-27 Roger Sayle
gcc/ChangeLog
* simplify_rtx.cc (simplify_unary_operation_1)
_check_non_convertible_regs
on each TImode register operand in the single_set's SET_SRC.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check, both with and without --target_board=unix{-m32},
with no new failures. Ok for mainline?
2022-07-28 Roger Sayle
-linux-gnu with make bootstrap
and make -k check. both with and without --target_board=unix{-m32},
with no new failures. Ok for mainline?
2022-07-28 Roger Sayle
gcc/ChangeLog
* config/i386/i386-features.cc (compute_convert_gain): Add gain
for converting suitable TImode shif
rencing. The much bigger win is that (eventually) all
TImode mode shifts and rotates by constants will become potential
candidates for TImode STV.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap
and make -k check with no new failures. Ok for mainline?
2022-07-
Hi Segher,
> On Wed, Jul 27, 2022 at 02:42:25PM +0100, Roger Sayle wrote:
> > This patch implements some additional zero-extension and
> > sign-extension related optimizations in simplify-rtx.cc. The original
> > motivation comes from PR rtl-optimization/71775, where i
Hi Segher,
> > > To implement this, and some closely related transformations, we
> > > build upon the existing val_signbit_known_clear_p predicate. In the
> > > first chunk, nonzero_bits knows that FFS and ABS can't leave the
> > > sign-bit bit set,
> >
> > Is that guaranteed in all cases? Also
failures. Ok for mainline?
2022-07-30 Roger Sayle
H.J. Lu
gcc/ChangeLog
PR target/106450
* config/i386/i386-features.cc (timode_check_non_convertible_regs):
Do nothing if REGNO is set in the REGS bitmap, or is a hard reg
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