-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: qrzhang at gatech dot edu
Target Milestone: ---
Recent regression. Bisection points to g:b6ff3ddecfa93d53867afaaa078f85f
$ gcc-trunk -v
gcc version 11.0.0 20200516 (experimental) [master revision
53b4d52f114
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95171
Bug ID: 95171
Summary: ICE: verify_flow_info failed (error: wrong outgoing
edge flags at end of bb 2)
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: i
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95170
Andrew Pinski changed:
What|Removed |Added
Resolution|--- |MOVED
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95170
--- Comment #1 from fdlbxtqi ---
Created attachment 48550
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48550&action=edit
Picture bug
printf works while iostream does not since it links to GetTickCount64.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95170
Bug ID: 95170
Summary: GetTickCount64 cannot get found in KERNEL32.dll on
Legacy Windows Platforms like Windows XP, 2000
Product: gcc
Version: 11.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95169
--- Comment #4 from Andrew Pinski ---
0x11e6 <+45>:fcompl -0x10(%ebp)
0x11e9 <+48>:fnstsw %ax
0x11eb <+50>:sahf
That is what raises the invalid-operation exception
#(insn 23 56 24 2 (set (reg:HI 0 ax [99])
#
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95169
--- Comment #3 from Samuel Thibault ---
And for comparison, here is the disassemble of -march=i686 -mtune=generic,
which does not raise the exception:
Dump of assembler code for function f:
0x11b9 <+0>: push %ebp
0x11ba <+1>:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95169
--- Comment #2 from Samuel Thibault ---
Here are the results with -march=i386 -mtune=$i.
"0 1" thus means an exception is raised
i386 0 0
i486 0 0
i586 0 0
pentium 0 0
lakemont 0 0
pentium-mmx 0 0
winchip-c6 0 0
winchip2 0 0
c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95169
Samuel Thibault changed:
What|Removed |Added
Known to work||9.3.0
Known to fail|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95169
Bug ID: 95169
Summary: i386 comparison between nan and 0.0 triggers Invalid
operation exception
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: norma
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95168
Bug ID: 95168
Summary: libphobos: std.net.curl does not understand HTTP/2
status lines
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95167
Bug ID: 95167
Summary: libphobos: std.zip unittest depends on unzip being
installed
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95166
Bug ID: 95166
Summary: libphobos: core.cpuid.{cores,threads}PerCPU() returns
wrong value
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95155
Iain Buclaw changed:
What|Removed |Added
Resolution|--- |FIXED
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95155
--- Comment #2 from CVS Commits ---
The releases/gcc-9 branch has been updated by Iain Buclaw
:
https://gcc.gnu.org/g:7d505b0ed8565b8c120ddd2b0b4630c93eecdec5
commit r9-8599-g7d505b0ed8565b8c120ddd2b0b4630c93eecdec5
Author: Iain Buclaw
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90719
Iain Buclaw changed:
What|Removed |Added
Resolution|--- |FIXED
Status|REOPENED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90719
--- Comment #12 from CVS Commits ---
The releases/gcc-9 branch has been updated by Iain Buclaw
:
https://gcc.gnu.org/g:866f7405707dd2970868941635a32bd9197cd731
commit r9-8598-g866f7405707dd2970868941635a32bd9197cd731
Author: Iain Buclaw
Date:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95161
Andrew Pinski changed:
What|Removed |Added
Resolution|--- |DUPLICATE
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94730
--- Comment #5 from Andrew Pinski ---
*** Bug 95161 has been marked as a duplicate of this bug. ***
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95165
kargl at gcc dot gnu.org changed:
What|Removed |Added
Priority|P3 |P4
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95165
Bug ID: 95165
Summary: Since 9.1 we do have ISO_Fortran_binding.h
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: web
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95157
--- Comment #2 from Simon Marchi ---
Ah, good point!
So yeah, please consider the test case without `volatile`.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95157
Harald van Dijk changed:
What|Removed |Added
CC||harald at gigawatt dot nl
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95160
Marek Polacek changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85282
Marek Polacek changed:
What|Removed |Added
CC||mikelojkovic at gmail dot com
--- Commen
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95164
Marek Polacek changed:
What|Removed |Added
CC||mpolacek at gcc dot gnu.org
Ke
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95164
Bug ID: 95164
Summary: ICE regression starting with 9.3
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
A
+,fortran,lto
--prefix=/software/compilers/gcc-offload/f5b461d4/gnu-9.2.0
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.0.0 20200516 (experimental) (GCC)
Cheers,
John
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95138
--- Comment #2 from anlauf at gcc dot gnu.org ---
Another datapoint: inserting
select type (o)
type is (integer)
print *, transfer(o, v)
end select
prints the right thing:
1 2 3
Also note the possibly
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95053
--- Comment #28 from anlauf at gcc dot gnu.org ---
A patch based on comment#15 has been posted for review:
https://gcc.gnu.org/pipermail/fortran/2020-May/054321.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95162
H.J. Lu changed:
What|Removed |Added
Resolution|--- |INVALID
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95162
--- Comment #1 from H.J. Lu ---
GCC manual says
'-mpreferred-stack-boundary=NUM'
Attempt to keep the stack boundary aligned to a 2 raised to NUM
byte boundary. If '-mpreferred-stack-boundary' is not specified,
the default is 4 (1
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95162
Bug ID: 95162
Summary: -mpreferred-stack-boundary=2 doesn't work with libgcc
functions
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95161
Bug ID: 95161
Summary: [10/11 Regression] internal compiler error: in
gimplify_expr, at gimplify.c:14609
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95100
Jonathan Wakely changed:
What|Removed |Added
Resolution|--- |INVALID
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95152
Fredrik Hederstierna changed:
What|Removed |Added
CC||fredrik.hederstierna@securi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94474
--- Comment #11 from Bernd Edlinger ---
Andrew,
(In reply to Andrew Burgess from comment #10)
> Further, I've seen no mention of exit views anywhere, and I think they
> would also be needed.
>
Yes, that is also my idea, when I say the dwarf2 s
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