https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111916
Bug ID: 111916
Summary: wrong code at -O1 and above on x86_64-linux-gnu (the
generated code hangs)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110848
--- Comment #15 from Eric Gallager ---
(In reply to Eric Gallager from comment #14)
> Oh right, if we're considering changing things for plain-C here, too, then
> maybe have it enabled by -Wc++-compat there?
Or rather, for plain-C modes, where
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110848
--- Comment #14 from Eric Gallager ---
Oh right, if we're considering changing things for plain-C here, too, then
maybe have it enabled by -Wc++-compat there?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111910
Andrew Pinski changed:
What|Removed |Added
Blocks||50856
--- Comment #4 from Andrew Pinski
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111915
--- Comment #3 from Andrew Pinski ---
Note the reasoning for the extra options is still get:
_2 = i_26 * 2;
_23 = _2 & 1;
_9 = (long unsigned int) _23;
In the IR.
Otherwise _23 would be 0.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111915
--- Comment #2 from Andrew Pinski ---
Maybe one of richi's recent SLP related patches:
GCC 13:
/app/example.cpp:5:21: missed: Build SLP failed: not grouped load _12 = *_11;
/app/example.cpp:5:21: note: SLP discovery for node 0x4cdbb68 faile
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111915
Andrew Pinski changed:
What|Removed |Added
Last reconfirmed||2023-10-22
Target Milestone|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65250
Andrew Pinski changed:
What|Removed |Added
Resolution|--- |FIXED
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111915
Bug ID: 111915
Summary: GCC: ICEs on a program with __restrict and option `-O2
-fno-tree-vrp -fno-tree-dominator-opts -fno-tree-ccp`
Product: gcc
Version: 14.0
Status: U
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111912
Andrew Pinski changed:
What|Removed |Added
Ever confirmed|0 |1
Known to fail|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111913
Andrew Pinski changed:
What|Removed |Added
Keywords||ice-on-valid-code,
|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111914
Andrew Pinski changed:
What|Removed |Added
Known to fail||7.1.0
Keywords|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111911
--- Comment #4 from Andrew Pinski ---
(In reply to Andrew Pinski from comment #3)
> I suspect it started with PR 93241 (and is very similar to PR 93348).
(_Bool) <<< Unknown tree: c_maybe_const_expr
1 >>> == 0)
So maybe remove_c_maybe_cons
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111911
Andrew Pinski changed:
What|Removed |Added
Keywords||needs-bisection
See Also|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111914
Bug ID: 111914
Summary: GCC: 14: ICE when function pointer array as arguments
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Compo
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111911
--- Comment #2 from Andrew Pinski ---
A c_maybe_const_expr is there still for this.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111913
Bug ID: 111913
Summary: GCC: 14: -O1 compile __builtin_popcount fails while
-O0 succeeds
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111911
Andrew Pinski changed:
What|Removed |Added
Last reconfirmed||2023-10-22
Status|UNCONFIRM
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111911
Andrew Pinski changed:
What|Removed |Added
Known to fail||10.1.0, 11.1.0, 8.4.0,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111912
Bug ID: 111912
Summary: GCC: 14: internal compile error when apply
__transaction_atomic on logical or expr
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Sever
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111911
Bug ID: 111911
Summary: GCC: 14: internal compiler error: internal compiler
error: in gimplify_expr, at gimplify.cc:17510
Product: gcc
Version: 14.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65250
--- Comment #2 from Oleg Endo ---
Briefly checked this one on GCC-13. It generates the optimal sequence.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111909
Eric Gallager changed:
What|Removed |Added
CC||egallager at gcc dot gnu.org
--- Commen
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111910
--- Comment #3 from Andrew Pinski ---
Also this:
```
int f(int a, int b)
{
if (a < b) return a - b; else return b - a;
}
int fa(int a, int b)
{
return (a < b) ? (a - b) : (b - a);
}
int f1(int a, int b)
{
int t = a - b;
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111910
--- Comment #2 from Andrew Pinski ---
That is:
```
int f(int a, int b)
{
if (a > b) return a - b; else return b - a;
}
int fa(int a, int b)
{
return (a > b) ? (a - b) : (b - a);
}
int f1(int a, int b)
{
int t = a - b;
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111910
Andrew Pinski changed:
What|Removed |Added
Ever confirmed|0 |1
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25290
--- Comment #32 from Andrew Pinski ---
https://gcc.gnu.org/pipermail/gcc-patches/2004-June/140297.html for reference
where the original idea came from.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111908
--- Comment #1 from Jessica Clarke ---
NB: Arm have a vendor branch for Morello (intended to be generic across CHERI
with a Morello-specific backend, rather than overly tied to the Morello
prototype) at refs/vendors/ARM/heads/morello. I have no
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111910
Bug ID: 111910
Summary: `a - b < 0` is not transformed into `a < b` for signed
types
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: FIXME, missed-opt
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111837
anlauf at gcc dot gnu.org changed:
What|Removed |Added
Resolution|--- |FIXED
Status|ASS
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111837
--- Comment #7 from CVS Commits ---
The releases/gcc-11 branch has been updated by Harald Anlauf
:
https://gcc.gnu.org/g:9b569e0a1cf79519eea2e62422232c8d2d483f07
commit r11-11071-g9b569e0a1cf79519eea2e62422232c8d2d483f07
Author: Harald Anlauf
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111837
--- Comment #6 from CVS Commits ---
The releases/gcc-12 branch has been updated by Harald Anlauf
:
https://gcc.gnu.org/g:4d4d191e03d102d5afeb4b091e947560351004c3
commit r12-9934-g4d4d191e03d102d5afeb4b091e947560351004c3
Author: Harald Anlauf
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111837
--- Comment #5 from CVS Commits ---
The releases/gcc-13 branch has been updated by Harald Anlauf
:
https://gcc.gnu.org/g:c83907b9fad802a5c38ed4ca75d9415b8f57f619
commit r13-7972-gc83907b9fad802a5c38ed4ca75d9415b8f57f619
Author: Harald Anlauf
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111903
Andrew Pinski changed:
What|Removed |Added
URL||https://gcc.gnu.org/piperma
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111781
--- Comment #3 from Mikael Morin ---
I'm trying to remove the formal_arg_flag global variables, which seem to just
disable all the checks on dummy arguments.
Unfortunately, it regresses a bit, say pr101026.f for example can be simplified
to thi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111909
Bug ID: 111909
Summary: Filename case sensitivity defaulted wrongly on macOS
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Compon
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110848
--- Comment #13 from Aaron Ballman ---
Just to circle back around on this topic, these are changes recently landed in
Clang:
https://github.com/llvm/llvm-project/commit/84a3aadf0f2483dde0acfc4e79f2a075a5f35bd1
It enables the -Wvla-extension dia
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111781
Mikael Morin changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111908
Bug ID: 111908
Summary: Port CheriBSD-specific compiler warnings to GCC
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: build, diagnostic
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80532
--- Comment #11 from Eric Gallager ---
(In reply to CVS Commits from comment #9)
> The master branch has been updated by Martin Sebor :
>
> https://gcc.gnu.org/g:671a283636de75f7ed638ee6b01ed2d44361b8b6
>
> commit r12-6605-g671a283636de75f7ed63
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111905
--- Comment #4 from Kamil Kaznowski ---
(In reply to Andrew Pinski from comment #2)
> Why are you using `-mprefer-vector-width=512` here?
>
> 512 causes the loop to be needing to be unrolled once more and that is why
> the confusion happening.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111905
--- Comment #3 from Kamil Kaznowski ---
Created attachment 56166
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56166&action=edit
a smaller example
A smaller example.
Compilation flags:
-O2 -march=x86-64-v3 -std=c++23
vs
-O3 -march=x86-64
-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-4813-20231021102502-g57cbb1d3344-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.0 20231021 (experimental) (GCC)
entation
fault)
FAIL: gcc.dg/torture/bitint-39.c -O1 (test for excess errors)
=== gcc Summary ===
# of expected passes12
# of unexpected failures2
# of unresolved testcases 1
/tmp/build/gcc/xgcc version 14.0.0 20231021 (experimental) [master
r14-481
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