This patch resolves the bootstrap failure on x86_64-pc-linux-gnu.
Is this sufficiently "obvious" in stage4, or should I wait for the bootstrap
and regression testing to complete?
2022-02-22 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.cc (ix86_expand_cmpxchg_loop
in a variable makes the change look
a little bigger.
This patch has been tested on x86_64-pc-linunx-gnu with make bootstrap
and make -k check with no new (unexpected) failures. Ok for mainline?
2022-02-22 Roger Sayle
gcc/cp/ChangeLog
PR c++/96442
* decl.cc (build_enumeration): Check
as though they are error_mark_node.
This patch has been tested on x86_64-pc-linunx-gnu with make bootstrap
and make -k check with no new (unexpected) failures. Ok for mainline?
2022-02-21 Roger Sayle
gcc/cp/ChangeLog
PR c++/95999
* decl.cc (finish_enum_value_list): If VALUE isn't
negative zeros from positive zeros in ctor_single_nonzero_element
(but it's perhaps something to beware of in uses of VECTOR_CST's
single_nonzero_element).
Cheers,
Roger
--
> -Original Message-
> From: Marc Glisse
> Sent: 21 February 2022 08:21
> To: Roger Sayle
> Cc: gcc-patc
. Ok for mainline?
2022-02-21 Roger Sayle
gcc/ChangeLog
* fold-const.cc (ctor_single_nonzero_element): New function to
return the single non-zero element of a (vector) constructor.
* fold-const.h (ctor_single_nonzero_element): Prototype here.
* match.pd (reduc
; starts with a zero byte but also contains non-zero
bytes.
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?
2022-02-20 Roger Sayle
gcc/ChangeLog
PR tree-optimization/83907
* tree-ssa-strlen.cc (h
lue replacement:
with expr: x_3(D) * x_3(D)
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?
2022-02-20 Roger Sayle
gcc/ChangeLog
* tree-chrec.cc (chrec_apply): Attempt to fold the linear ch
heck with no new failures. Ok for mainline?
2022-02-18 Roger Sayle
Richard Biener
gcc/ChangeLog
PR target/65855
PR c/80852
* tree-chrec.cc (chrec_fold_divide_by_2): New function to
divide a chrec by two, honoring the type of the chrec.
(
and
make -k check with no new failures. Ok for mainline?
2022-02-14 Roger Sayle
gcc/ChangeLog
PR c/104506
* gimple-expr.cc (useless_type_conversion_p): Add a check for
error_mark_node.
gcc/testsuite/ChangeLog
PR c/104506
* gcc.dg/pr104506.c: New test case.
Roger
for mainline?
2022-02-11 Roger Sayle
gcc/ChangeLog
PR target/104489
* config/nvptx/nvptx.md (*movhf_insn): Add subregs_ok attribute.
Thanks in advance,
Roger
--
diff --git a/gcc/config/nvptx/nvptx.md b/gcc/config/nvptx/nvptx.md
index 92768dd..3f1a4a6 100644
--- a/gcc/config/nvptx
e gfortran testsuite described above. Ok for mainline?
2022-02-10 Roger Sayle
gcc/fortran/ChangeLog
* trans-common.cc (GFC_EQUIV_FMT): New macro respecting the
target's NO_DOT_IN_LABEL and NO_DOLLAR_IN_LABEL preferences.
(build_equiv_decl): Use GFC_EQUIV_FMT here
check with no new failures, and on nvptx-none, where it is
the middle-end portion of a pair of patches to allow the default ISA to
be advanced. Ok for mainline?
2022-02-09 Roger Sayle
gcc/ChangeLog
* cfgexpand.cc (expand_value_return): Allow backends to promote
a scalar floating
behaviour.
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap and
make -k check no new failures. Ok for mainline?
2022-02-08 Roger Sayle
gcc/ChangeLog
PR tree-optimization/104420
* match.pd (mult @0 real_zerop): Tweak conditions for constant
folding
performance win.
This patch has been tested on nvptx-none hosted on x86_64-pc-linux-gnu
with a "make" and "make -k check" with no new failures. Ok for mainline?
2022-02-08 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (copysign3): Allow immediate
floa
Hi Thomas,
Very many thanks for your help investigating this problem.
> > This patch addresses the "increased register pressure" regression
> > on nvptx-none caused by my change to transition the backend to
> > a STORE_FLAG_VALUE = 1 target.
>
> Yes, "addresses", but unfortunately doesn't
make -k check" with no new failures. Unfortunately,
the exact register usage of a nvptx kernel depends upon the version of
the Cuda drivers being used (and the hardware), but I believe this
change should resolve the PR (for Thomas) by improving code generation
for the cases that regressed. Ok for ma
n.
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?
2022-02-03 Roger Sayle
gcc/ChangeLog
PR rtl-optimization/101885
* combine.c (try_combine): When splitting a parallel into two
s
nsidered
VARYING, but with the above changes now has the range [-256, -1][1, 255],
which is sufficient to optimize away the call to foo.
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?
2022-02-01 Roger Sayle
gcc/Chan
d as below.
This patch has been tested both on x86_64-pc-linux-gnu with a full
make bootstrap and make -k check, and on a cross-compiler to
riscv-unknown-linux-gnu where I was able to confirm the new test
case now passes. Ok for mainline?
2022-01-22 Roger Sayle
gcc/ChangeLog
* tree-ssa-m
-k check with no new failures. Ok for mainline?
2022-01-16 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (any_logic): Move code iterator earlier
in machine description.
(logic): Move code attribute earlier in machine description.
(ilogic): New code attribute, li
een tested on nvptx-none hosted on x86_64-pc-linux-gnu
(including newlib) with a make and make -k check with no new failures.
Ok for mainline?
2022-01-14 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (UNSPEC_ISINF): New UNSPEC.
(one_cmplbi2): New define_insn for not.pred.
.
This patch has been tested on x86_64-pc-linux-gnu with a make bootstrap
and make -k check with no new failures. OK for mainline?
2022-01-14 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
* config/i386/i386-expand.c (ix86_expand_v1ti_to_ti): Use force_reg.
(ix86_expand_ti_to_v1ti
idiom is safe to use for shifts by 127, but that case gets handled
by a two operation sequence earlier in this function.
This patch has been tested on x86_64-pc-linux-gnu with a make bootstrap
and make -k check with no new failures. OK for mainline?
2022-01-11 Roger Sayle
gcc/Cha
selp.u32%r38, 1, 0, %r34;
and.b32 %value, %r37, %r38;
This patch has been tested on nvptx-none hosted on x86_64-pc-linux-gnu
(including newlib) with a make and make -k check with no new failures.
Ok for mainline?
2022-01-10 Roger Sayle
gcc/ChangeLog
* config/nvptx/
th variant (or revisit this
decision).
This patch has been tested on nvptx-none hosted on x86_64-pc-linux-gnu
(including newlib) with a make and make -k check with no new failures.
Ok for mainline?
2022-01-08 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (*cmpf): New define_insn.
to work.
This patch has been 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 regressions. Ok for mainline?
2022-01-06 Roger Sayle
gcc/ChangeLog
* tree-ssa-math-opts.c (struct w
m0
ret
Hence the solution (i.e. this patch) is to add a special case
to ix86_expand_vector_move for TImode to V1TImode transfers.
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?
2022-01-06
-linux-gnu
(including newlib) with a make and make -k check with no new failures.
Ok for mainline?
2022-01-06 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (*cnot2): New define_insn.
gcc/testsuite/ChangeLog
* gcc.target/nvptx/cnot-1.c: New test case.
Thanks in advance
and make -k check with no new failures, and the new testcase checked
both with and without -m32. Ok for mainline?
2021-12-23 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
PR target/103773
* config/i386/i386.md (*mov_and): New define_insn for
writing a zero to memory
g included the 0/-1 write to memory changes).
Tested (overnight) on x86_64-pc-linux-gnu with make bootstrap and make -k check
with no new failures.
2021-12-22 Roger Sayle
gcc/ChangeLog
PR target/103773
* config/i386/i386.md (*movdi_internal): Only use short
push/po
and the new testcase checked
both with and without -m32. Ok for mainline?
2021-12-21 Roger Sayle
gcc/ChangeLog
* gcc/config/i386/i386.md (define_peephole2): With -Oz use
andl $0,mem instead of movl $0,mem and orl $-1,mem instead of
movl $-1,mem.
gcc
and make -k check with no new failures. Ok for mainline?
2021-12-21 Roger Sayle
gcc/ChangeLog
PR target/103773
* config/i386/i386.md (*movdi_internal): Only use short
push/pop sequence for register (non-memory) destinations.
(*movsi_internal): Likewise.
gcc/testsuite
(with and without RUNTESTFLAGS="--target_board='unix{-m32}'")
with no new failures. Ok for mainline?
2021-12-20 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
* config/i386/i386.md (any_mul_highpart): New code iterator.
(sgnprefix, s): Add attribute support for [su]mu
reasonable (but this patch has been tested
both with and without this last change, if it's consider controversial).
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 mainl
t splitter, either
eliminating the instruction or turning it into a simple move.
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?
2021-12-13 Roger Sayle
gcc
3513 bytes total
down to 3668516 bytes).
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?
2021-12-10 Roger Sayle
gcc/ChangeLog
PR target/32803
* common.opt (Oz): New command line option.
* lto
-multilib
--enable-targets=all --with-arch-32=mips32r2 --with-arch-64=mips64r2
(thanks to the compile farm's gcc230.fsffrance.org) and a cross-compiler
to mips64-linux-gnu hosted on x86_64-pc-linux-gnu.
Ok for mainline?
2021-12-10 Roger Sayle
gcc/ChangeLog
* config/mips/mips.c
l/gcc-patches/2021-December/585977.html)
I'll include a testcase for this functionality with the final
rs6000 backend patch in the series.
Ok for mainline?
2021-12-10 Roger Sayle
gcc/ChangeLog
* combine.c (try_combine): When I2 or I3 is PARALLEL without
clobbers that is eff
nsures that the
code we generate isn't adversely affected by changes outside the backend.
Ok for mainline?
2021-12-10 Roger Sayle
gcc/ChangeLog
* config/i386/i386.md (any_mul_highpart): New code iterator.
(sgnprefix, s): Add attribute support for [su]mul_highpart.
(mul3_hi
but I'm happy to change this].
This patch has been tested on x86_64-pc-linux-gnu with a make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-12-10 Roger Sayle
gcc/ChangeLog
PR ipa/103601
* ipa-modref-tree.h (useful_for_kill_p): Zero width ac
add_geu:
subfc 5,5,4
addze 3,3
blr
This patch has been tested on powerpc64-unknown-linux-gnu (many thanks to
gcc203.fsffrance.org on the GCC compile farm) with a make bootstrap and make
-k check with now new failures.
Ok for mainline?
2021-12-03 Roger Sayle
gcc/Chan
3
blr
This patch has been tested on powerpc64-unknown-linux-gnu (many thanks
to gcc203.fsffrance.org on the GCC compile farm) with a make bootstrap
and make -k check with now new failures.
Ok for mainline?
2021-12-02 Roger Sayle
gcc/ChangeLog
PR target/43892
Hi Richard,
Many thanks for the review. Here's the final version that I've committed,
including
your suggested improvements, following another make bootstrap and make -k check
on x86_64-pc-linux-gnu with no new failures. Thanks again.
2021-12-01 Roger Sayle
Richard Biener
I missed a spot when adding the "#if __BYTE_ORDER__ == ..." guards to
the new test case for PR tree-optimization/103345. Committed as obvious.
2021-11-30 Roger Sayle
gcc/testsuite/ChangeLog
PR testsuite/103477
* gcc.dg/tree-ssa/pr103345.c: Correct xor test for
?
2021-11-29 Roger Sayle
Uroš Bizjak
gcc/ChangeLog
PR target/100711
* config/i386/sse.md (define_split): New splitters to simplify
not;vec_duplicate;and as vec_duplicate;andn.
gcc/testsuite/ChangeLog
PR target/100711
* gcc.target/i386/pr100711-1
1) > Y ? -X : 1 simplifies to X >= Y ? -X : 1 when
X is unsigned, as when X + 1 overflows, X is -1, so -X == 1.
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?
2021-11-29 Roger Sayle
gcc/Chang
ret
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?
2021-11-28 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.c (ix86_expand_v1ti_to_ti): Perform the
conversion via V2
. Ok for mainline?
2021-11-28 Roger Sayle
gcc/ChangeLog
PR target/100711
* config/i386/sse.md (define_split): New splitters to simplify
not;vec_duplicate;and as vec_duplicate;andn.
gcc/testsuite/ChangeLog
PR target/100711
* gcc.target/i386/pr100711-1.c
On Tue, Nov 23, 2021 at 12:46PM Richard Biener < richard.guent...@gmail.com>
wrote:
> On Thu, Nov 18, 2021 at 4:18 PM Roger Sayle
> wrote:
> > > The patch doesn't add any testcase.
> >
> > The three new attached tests check that the critical invariants have
-k check with no new failures. Ok for mainline?
2021-11-25 Roger Sayle
gcc/ChangeLog
PR middle-end/103406
* match.pd (minus @0 @0): Check tree_expr_maybe_infinite_p.
gcc/testsuite/ChangeLog
PR middle-end/103406
* gcc.dg/pr103406.c: New test case.
Thanks
for mainline?
2021-11-22 Roger Sayle
gcc/ChangeLog
PR tree-optimization/98953
PR tree-optimization/103345
* gimple-ssa-store-merging.c (find_bswap_or_nop_1): Handle
BIT_XOR_EXPR and PLUS_EXPR the same as BIT_IOR_EXPR.
(pass_optimize_bswap::execute
-gnu with a bootstrap
and regression test just to confirm that there are no unanticipated
side-effects.
Ok for mainline?
2021-11-20 Roger Sayle
Robin Dapp
gcc/ChangeLog
PR target/102117
* tree-ssa-math-opts.c (convert_mult_to_widen): Recognize
signed
Hi Richard,
Many thanks for the patch review.
On Tue, Nov 16, 2021 at 12:38 Richard Biener wrote:
> On Mon, Nov 15, 2021 at 2:04 PM Roger Sayle
> wrote:
> >
> > This patch tidies up the code that GCC generates for simple loops, by
> > selecting/generating a simpl
-linux-gnu with make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-11-15 Roger Sayle
gcc/ChangeLog
* config/i386/i386.md (*bmi2_rorx_1): Make conditional
on !optimize_function_for_size_p.
(*3_1): Add preferred_for_size at
%rdx, (%rsi,%rax)
addq$8, %rax
cmpq%rax, %rcx
jne .L3
.L1:ret
This patch has been tested on x86_64-pc-linux-gnu with a make bootstrap
and make -k check with no new failures. Ok for mainline?
2021-11-15 Roger Sayle
gcc/ChangeLog
* tree-ssa-loop-ivopts.
Hi Richard,
>> I wonder if reviewers could take a look (or a second look) at some of
>> my outstanding patches.
>> PR middle-end/100810: Penalize IV candidates with undefined value
>> bases
>> https://gcc.gnu.org/pipermail/gcc-patches/2021-August/578441.html
>
> I did comment on this one,
>On 11/6/2021 4:20 PM, Roger Sayle wrote:
>> Simplify paradoxical subreg extensions of TRUNCATE
>> https://gcc.gnu.org/pipermail/gcc-patches/2021-September/578848.html
> So the discussion seemed to end with a recommendation to try and address this
> earlier in the c
I wonder if reviewers could take a look (or a second look) at some of my
outstanding patches.
Four nvptx backend patches:
nvptx: Use cvt to perform sign-extension of truncation.
https://gcc.gnu.org/pipermail/gcc-patches/2021-August/578256.html
nvptx: Add (experimental) support for HFmode with
and make -k check with no new failures. Interestingly the correct
behaviour is already tested by (amongst other tests) sse2-v1ti-shift-3.c
that confirms V1TImode rotates by constants match rotlti3/rotrti3.
Ok for mainline?
2021-11-01 Roger Sayle
* config/i386/i386.md (ti3): Provi
Roger Sayle
Jakub Jelinek
gcc/ChangeLog
PR target/102986
* config/i386/i386-expand.c (ix86_expand_v1ti_to_ti,
ix86_expand_ti_to_v1ti): New helper functions.
(ix86_expand_v1ti_shift): Check if the amount operand is an
integer constant, and expand
, but the functionality overlaps and this patch
was nearly ready to submit to gcc-patches when 102986 appeared in bugzilla.
2021-10-30 Roger Sayle
gcc/ChangeLog
PR target/102986
* config/i386/i386-expand.c (ix86_expand_v1ti_to_ti,
ix86_expand_ti_to_v1ti): New helper functions
bytes, shrinks to 5 bytes with this patch).
Please let me know what you think.
Roger
--
-Original Message-
From: Uros Bizjak
Sent: 25 October 2021 09:02
To: Roger Sayle
Cc: GCC Patches
Subject: Re: [PATCH] x86_64: Implement V1TI mode shifts/rotates by a constant
On Sun, Oct 24, 2021
rts;
_stest_sat_min:
nop;
nop;
nop;
R0 = -32768 (X);
rts;
This patch has been tested on x86_64-pc-linux-gnu with make bootstrap and
make -k check with no new failures, and on a cross-compiler to bfin-elf
with no regressions. Ok for mainline?
2021-
with no new failures. Ok for mainline?
2021-10-24 Roger Sayle
gcc/ChangeLog
* config/i386/i386-expand.c (ix86_expand_v1ti_shift): New helper
function to expand V1TI mode logical shifts by integer constants.
(ix86_expand_v1ti_rotate): New helper function to expand V1TI
g the code into a function returning the final "fract32" result,
as simply specifying an "int" return type for main, results in the
entire function being optimized away, as the result is unused.
Checked-in as obvious.
2021-10-24 Roger Sayle
gcc/testsuite/ChangeLog
check" with no new failures. Ok for mainline?
2021-10-22 Roger Sayle
gcc/ChangeLog
* config/i386/sse.md (v1ti3): New define_insn to
implement V1TImode AND, IOR and XOR on TARGET_SSE2 (and above).
(one_cmplv1ti2): New define expand.
gcc/testsuite/ChangeLog
evaluating these expressions at compile-time, when
the mismatch was caught by the testsuite.
Many thanks to Jeff Law for confirming that this patch fixes these
regressions on bfin-elf. Ok for mainline?
2021-10-18 Roger Sayle
gcc/ChangeLog
PR target/102785
* config/bfin/bfin.md
);
R0.L = ONES R0;
R0 = R1 & R0;
rts;
This patch has been tested on a cross-compiler to bfin-elf hosted
on x86_64-pc-linux-gnu, but without a toolchain, and shows no
regressions in the compile-only parts of the testsuite.
Ok for mainline?
2021-10-17 Roger Sayle
gcc/Chang
to:
_foo: nop;
nop;
nop;
R0 = 32767 (X);
rts;
_bar: nop;
nop;
R0 = -1 (X);
R0.H = 32767;
rts;
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for
uot;make bootstrap" and
"make -k check" on x86_64-pc-linux-gnu with no new failures.
Ok for mainline?
Sorry again for the temporary inconvenience.
2021-10-15 Roger Sayle
gcc/ChangeLog
* config/i386/i386.c (ix86_hardreg_mov_ok): For vector modes,
allow standard_s
. I've left the existing behaviour the same, so that
memory-to-memory moves (continue to) use ix86_gen_scatch_sse_rtx.
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?
2021-10-13 Roger Sa
-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. In theory, my recent "obvious"
regexp fix to accommodate -march=cascadelake is no longer required, but
there's no harm leaving the testsuite as it is.
Ok for mainline?
2021-10-11
of these differences.
Tested on x86_64-pc-linux-gnu (with and without -march=cascadelake).
2021-10-08 Roger Sayle
gcc/testsuite/ChangeLog
* gcc.target/i386/sse2-mmx-paddsb-2.c: Test for -128 or 128.
* gcc.target/i386/sse2-mmx-paddusb-2.c: Test for -1 or 255.
* gcc.target
sses to eventually generate a much shorter sequence using
an and.pred instruction (just like Nvidia's nvcc compiler).
This patch has been tested nvptx-none with a "make" and "make -k check"
(including newlib) hosted on x86_64-pc-linux-gnu with no new failures.
Ok for mainline?
20
atch has been tested on
x86_64-pc-linux-gnu with "make bootstrap" and "make -k check" with no
new failures. Ok for mainline?
2021-10-03 Roger Sayle
gcc/ChangeLog
* combine.c (recog_for_combine): For an unrecognized move/set of
a constant, try fo
test cases.
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?
2021-09-29 Roger Sayle
Richard Sandiford
gcc/ChangeLog
* gcc/rtl.def (SMUL_HIGHPART, UMUL_HIGH
middle-end. Indeed, if flag_trapping_math
is
restricted to only be FLAG_TRAPPING_DEFAULT in a front-end(s), they will be.
Best regards,
Roger
--
-Original Message-
From: Joseph Myers
Sent: 27 September 2021 21:05
To: Roger Sayle
Cc: 'GCC Patches' ; 'Eric Botcazou'
Subject: Re: [PATCH] Make flag_trap
w C-family attribute is unsuitable, is my
logic/implementation in handle_saturating_attribute correct?
2021-09-26 Roger Sayle
gcc/c-family/ChangeLog
* c-attribs (handle_saturating_attribute): New callback function
for a "saturating" attribute to set the
ref warnings in
invoke.texi.
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?
2021-09-25 Roger Sayle
gcc/ChangeLog
* gcc/rtl.def (SH_MULT, UH_MULT): New RTX codes for representing
4-pc-linux-gnu with "make bootstrap"
and "make -k check", all languages including Ada, with no new failures.
Ok for mainline?
2021-09-25 Roger Sayle
gcc/ChangeLog
* flag-types.h (trapping_math_model): New enumeration (of bits)
specifying possible floating-
ember 2021 14:22
To: Roger Sayle ; Jason Merrill
; Jonathan Wakely
Cc: 'Xi Ruoyao' ; 'GCC Patches'
Subject: Re: [RFC/PATCH] C++ constexpr vs. floating point exceptions.
On Tue, Sep 21, 2021 at 02:15:59PM +0100, Roger Sayle wrote:
> Can you double check? Integer division by zero is undefined
Can you double check? Integer division by zero is undefined, but isn't
floating point
division by zero defined by the appropriate IEEE standards?
Roger
--
-Original Message-
From: Xi Ruoyao
Sent: 21 September 2021 14:07
To: Roger Sayle ; 'GCC Patches'
Subject: Re: [RFC/PATCH] C
: Segher Boessenkool ; Richard Biener
; Roger Sayle
Subject: Re: [PATCH] Simplify paradoxical subreg extensions of TRUNCATE
[Using this is a convenient place to reply to the thread as a whole]
Richard Biener via Gcc-patches writes:
> On Mon, Sep 6, 2021 at 12:15 PM Segher Boessenkool
> w
nd considers valid should be
independent of whether the user specified -fno-trapping-math (or
-ffast-math) to the middle-end.
Thoughts? Ok for mainline?
2021-09-21 Roger Sayle
gcc/cp/ChangeLog
* constexpr.c (cxx_eval_outermost_const_expr): Temporarily disable
the middle-end from honori
k/research
whether and why those checks may have been removed in the past].
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?
2021-09-18 Roger Sayle
gcc/ChangeLog
PR middle-end/88
in future). Are both parts Ok for mainline?
2020-09-17 Roger Sayle
gcc/ChangeLog
* config/nvptx/nvptx.md (define_c_enum "unspec"): New UNSPEC_TANH.
(define_mode_iterator HSFM): New iterator for HFmode and SFmode.
(exp2hf2): New define_insn controlled by TARGE
description (follow-up patches) in future. I'm
happy to defer these changes/hunks until later if reviewers prefer.
The following has been tested on nvptx-none, hosted on x86_64-pc-linux-gnu
with a "make" and "make -k check" with no new failures. Ok for mainline?
2020-09-16 Roger Sa
nd "make -k check" with no
new failures. Note that test1 in the new testcase is changed from
dg-bogus to dg-warning compared with version #1. Ok for mainline?
2021-09-14 Roger Sayle
gcc/ChangeLog
PR c/102245
* match.pd (shift optimizations): Disable recent sign
86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-09-13 Roger Sayle
gcc/c-family/ChangeLog
PR c/102245
* c-common.c (c_common_truthvalue_conversion) [LSHIFT_EXPR]:
Special case (optimize) sh
a
problem) minimized the inconvenience].
This patch has been tested on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures, and on a cross-compiler to
nvptx-none, with no new failures in its testsuite. OK for mainline?
2021-09-11 Roger Sa
t;make -k check" with no new failures. Ok for mainline?
2021-09-10 Roger Sayle
Richard Biener
gcc/ChangeLog
* match.pd (negation simplifications): Implement some negation
folding transformations from fold-const.c's fold_negate_expr.
tested on x86_64-pc-linux-gnu with a "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-09-09 Roger Sayle
gcc/ChangeLog
* generic-match-head.c (single_use_is_op_p): New helper function.
* gimple-match-head.c (single_use_is_
you think.
Best regards,
Roger
--
-Original Message-
From: Segher Boessenkool
Sent: 06 September 2021 11:14
To: Roger Sayle
Cc: 'GCC Patches'
Subject: Re: [PATCH] Simplify paradoxical subreg extensions of TRUNCATE
On Sun, Sep 05, 2021 at 11:28:30PM +0100, Roger Sayle wrote:
>
gnu with "make bootstrap"
and "make -k check" with no new failures, and also on nvptx-none with
no new failures. Ok for mainline?
2021-09-05 Roger Sayle
gcc/ChangeLog
* simplify-rtx.c (simplify_subreg): Optimize paradoxical subreg
extensions of TRUNCATE.
R
is a multiple of HOST_BITS_PER_WIDE_INT. The fix is
simply to reorder/shuffle the existing tests.
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?
2021-09-05 Roger Sayle
gcc/ChangeLog
-gnu (just in case), and confirmation/pre-approval
from Jeff Law that this indeed fixes the build failures seen on
several platforms.
My humble apologies again.
2021-08-31 Roger Sayle
gcc/ChangeLog
* expr.c (convert_modes): Don't use subreg_promoted_mode on a
SUBREG if it can't be
help testing the attached patch on an affected
target
would be much appreciated.
Sorry for the inconvenience.
Roger
--
-Original Message-
From: Christophe LYON
Sent: 31 August 2021 13:32
To: Roger Sayle ; 'GCC Patches'
Subject: Re: [PATCH] Preserve SUBREG_PROMOTED_VAR_P on (extend:HI
on x86_64-pc-linux-gnu with "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2020-08-31 Roger Sayle
gcc/c/ChangeLog
PR c/79412
* c-decl.c (duplicate_decls): On significant mismatches, mark the
types of both (non-function) decl
pefully, the tree-loop optimization experts agree with my analysis/fix.
This patch has been tested on x86_64-pc-linux-gnu with a "make bootstrap"
and "make -k check" with no new failures. Ok for mainline?
2021-08-31 Roger Sayle
Andrew Pinski
gcc/ChangeLo
,
Roger
--
-Original Message-
From: Richard Biener
Sent: 30 August 2021 08:13
To: Roger Sayle
Cc: GCC Patches ; Eric Botcazou
Subject: Re: [PATCH take 3] Experimental -fpreserve-traps option
On Sun, Aug 29, 2021 at 11:28 AM Roger Sayle wrote:
>
>
> This is another attempt to
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