[Bug c/76732] New: GCC should warn on repeated initializer for same array element / struct member.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76732

Bug ID: 76732
   Summary: GCC should warn on repeated initializer for same array
element / struct member.
   Product: gcc
   Version: 5.4.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
  Assignee: unassigned at gcc dot gnu.org
  Reporter: rusty at rustcorp dot com.au
  Target Milestone: ---

Hit a nasty cut & paste bug in my code (extra comma before +3):

   int x[] = { [0] = 1, +3, [1] = 1 };

This double-initialization of x[1] should cause a warning.  Similarly:

   struct s { int a, b; } s = { .a = 1, .a = 2};

Thanks!

--- Comment #1 from Andrew Pinski  ---
*** Bug 76733 has been marked as a duplicate of this bug. ***

[Bug c/76733] GCC should warn on repeated initializer for same array element / struct member.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76733

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED

--- Comment #1 from Andrew Pinski  ---
.

[Bug c/76733] GCC should warn on repeated initializer for same array element / struct member.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76733

Andrew Pinski  changed:

   What|Removed |Added

 Resolution|FIXED   |DUPLICATE

--- Comment #2 from Andrew Pinski  ---
Dup.

*** This bug has been marked as a duplicate of bug 76732 ***

[Bug c/76733] New: GCC should warn on repeated initializer for same array element / struct member.

[rusty at rustcorp dot com.au]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76733

Bug ID: 76733
   Summary: GCC should warn on repeated initializer for same array
element / struct member.
   Product: gcc
   Version: 5.4.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
  Assignee: unassigned at gcc dot gnu.org
  Reporter: rusty at rustcorp dot com.au
  Target Milestone: ---

Hit a nasty cut & paste bug in my code (extra comma before +3):

   int x[] = { [0] = 1, +3, [1] = 1 };

This double-initialization of x[1] should cause a warning.  Similarly:

   struct s { int a, b; } s = { .a = 1, .a = 2};

Thanks!

[Bug c++/69954] internal compiler error: in dependent_type_p, at cp/pt.c:21141

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69954

Andrew Pinski  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |6.0

--- Comment #2 from Andrew Pinski  ---
Fixed for 6 so closing.

[Bug tree-optimization/30104] missed code motion optimization (invariant control structures)

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30104

Andrew Pinski  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |5.0

--- Comment #6 from Andrew Pinski  ---
Been fixed since at least 5.0.  Might have been fixed earlier.

Note the code is not exactly the same on aarch64-linux-gnu but the inner loops
are.

[Bug tree-optimization/30100] missed value numbering optimization (conditional value numbers)

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30100

Andrew Pinski  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |5.0

--- Comment #2 from Andrew Pinski  ---
Fixed since at least 5.0 (might have been fixed before that too).

[Bug c++/56701] [C++11] The *this* pointer fails to bind to rvalue reference to pointer type

[rs2740 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56701

--- Comment #7 from TC  ---
*** Bug 69208 has been marked as a duplicate of this bug. ***

[Bug c++/69208] &*this should not be const-qualified

[rs2740 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69208

TC  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #1 from TC  ---
Fixed as part of 56701.

*** This bug has been marked as a duplicate of bug 56701 ***

[Bug c++/64380] Missed optimization: smarter dead store elimination in dtors

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64380

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
   Severity|minor   |enhancement

[Bug lto/69866] lto1: internal compiler error: in add_symbol_to_partition_1, at lto/lto-partition.c:158

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69866

Andrew Pinski  changed:

   What|Removed |Added

 Status|WAITING |NEW

[Bug target/66198] base on aarch64 compiler , fdo optimazition produce wrong result

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66198

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||wrong-code
 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |5.4

--- Comment #5 from Andrew Pinski  ---
Works for me with GCC 5.4.0 from ubuntu and on the trunk so closing as fixed.
apinski@apinski-ss1:~/src/local1$ gcc -O2 -w   test.c   -fprofile-generate   -o
tmp1
apinski@apinski-ss1:~/src/local1$ result_1=`./tmp1`
apinski@apinski-ss1:~/src/local1$ gcc -w   -O2 -fbranch-probabilities 
-fprofile-use  -lm test.c -o tmp2
apinski@apinski-ss1:~/src/local1$ result_2=`./tmp2`
apinski@apinski-ss1:~/src/local1$ echo $result_1
checksum = 27A37B17
apinski@apinski-ss1:~/src/local1$ echo $result_2
checksum = 27A37B17

[Bug tree-optimization/19794] [meta-bug] Jump threading related bugs

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19794
Bug 19794 depends on bug 18046, which changed state.

Bug 18046 Summary: Missed jump threading optimization
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18046

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

[Bug tree-optimization/18046] Missed jump threading optimization

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=18046

Patrick Palka  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #21 from Patrick Palka  ---
I guess this can be considered fixed now.

[Bug target/71846] PowerPC -mlra option causes 2 tests to fail

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71846

Peter Bergner  changed:

   What|Removed |Added

 Status|RESOLVED|CLOSED

--- Comment #3 from Peter Bergner  ---
Closing as duplicate of PR72804.

[Bug target/72804] Poor code gen with -mvsx-timode

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72804

--- Comment #4 from Peter Bergner  ---
*** Bug 71846 has been marked as a duplicate of this bug. ***

[Bug c++/70142] Class members not in scope in exception-specification

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70142

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||rejects-valid
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1

--- Comment #1 from Andrew Pinski  ---
Confirmed.

[Bug target/71846] PowerPC -mlra option causes 2 tests to fail

[bergner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71846

Peter Bergner  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #2 from Peter Bergner  ---
Mike, this is a duplicate of the PR I've been working on and you just spec
tested my patch that fixes it.

*** This bug has been marked as a duplicate of bug 72804 ***

[Bug target/76731] New: [AVX512] _mm512_i32gather_epi32 and other scatter/gather routines have incorrect signature

[wen...@mitsuba-renderer.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76731

Bug ID: 76731
   Summary: [AVX512] _mm512_i32gather_epi32 and other
scatter/gather routines have incorrect signature
   Product: gcc
   Version: 7.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: target
  Assignee: unassigned at gcc dot gnu.org
  Reporter: wen...@mitsuba-renderer.org
  Target Milestone: ---

All of the scatter/gather intrinsics in avx512intrin.h use int/float/double
pointers, which is incorrect.

For intsance:

extern __inline __m512i
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
_mm512_i32gather_epi32 (__m512i __index, int const *__addr, int __scale)

These should use void*/const void* pointers according to Intel (see e.g.
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_i32gather_epi32=2778,2777)

This is a departure from prior mask/gather intrinsics, where type information
turned out to be a bad idea for various reasons (e.g. aliasing analysis)

[Bug c/76729] New: Microsoft Live Number + 1-8008061457+++ which by Microsoft Office 365

[yhtujgjghkjyh at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76729

Bug ID: 76729
   Summary: Microsoft Live Number + 1-8008061457+++ which by
Microsoft Office 365
   Product: gcc
   Version: unknown
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
  Assignee: unassigned at gcc dot gnu.org
  Reporter: yhtujgjghkjyh at yopmail dot com
  Target Milestone: ---

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[Bug tree-optimization/76490] [5/6/7 Regression] when use -O2 -fcheck-founds compiler appears to hang and consumes all memory

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76490

Andrew Pinski  changed:

   What|Removed |Added

   Target Milestone|--- |5.5

[Bug c/76716] New: Www.office.com/setup +1-800-982-1603 www.office.com setup U$A

[gfsd351556 at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76716

Bug ID: 76716
   Summary: Www.office.com/setup +1-800-982-1603 www.office.com
setup U$A
   Product: gcc
   Version: unknown
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
  Assignee: unassigned at gcc dot gnu.org
  Reporter: gfsd351556 at yopmail dot com
  Target Milestone: ---

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[Bug c/76677] New: Microsoft Live Number + 1-800-982-1603 which by Microsoft Office 365

[gfsd35 at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76677

Bug ID: 76677
   Summary: Microsoft Live Number + 1-800-982-1603 which by
Microsoft Office 365
   Product: gcc
   Version: unknown
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
  Assignee: unassigned at gcc dot gnu.org
  Reporter: gfsd35 at yopmail dot com
  Target Milestone: ---

ms office Helpline +1-800-982-1603 Customer Support Number, ms office Technical
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[Bug c/76642] New: Norton Symantec 1-800-769-2805 Norton technical number Norton antivirus technical support phone

[kgjfkgdfn at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76642

Bug ID: 76642
   Summary: Norton Symantec 1-800-769-2805 Norton technical number
Norton antivirus technical support phone
   Product: gcc
   Version: unknown
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c
  Assignee: unassigned at gcc dot gnu.org
  Reporter: kgjfkgdfn at yopmail dot com
  Target Milestone: ---

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[Bug c/28141] thread-local ptr initialized to address of thread-local misclassified as non-constant initializer

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=28141

--- Comment #3 from Andrew Pinski  ---
This also requires support in glibc.  I don't think glibc folks want this thing
as it means you have to process runtime relocs when a thread is created, not a
good thing.

[Bug bootstrap/39151] If you build and install 'ppl' (and not 'cloog') then files will still link with 'ppl'.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39151

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |WONTFIX

--- Comment #2 from Andrew Pinski  ---
ppl and cloog are no longer used only ISL.  So closing as won't fix.

[Bug tree-optimization/45032] Missed optimization in ifcvt/crossjump

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45032

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1
   Severity|normal  |enhancement

--- Comment #3 from Andrew Pinski  ---
Confirmed.

[Bug c++/76577] Tree folding may remove UB which causes invalid constexpr function calls to be accepted

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76577

Martin Liška  changed:

   What|Removed |Added

   Keywords||accepts-invalid
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 CC||marxin at gcc dot gnu.org
 Ever confirmed|0   |1

--- Comment #1 from Martin Liška  ---
The code snippet is accepted by all revisions that support c++11 (4.7.0).

clang 3.8.0 shows:
pr76577.cpp:7:15: error: constexpr variable 'bar' must be initialized by a
constant expression
constexpr int bar = foo (-5);
  ^ 
pr76577.cpp:4:14: note: negative shift count -5
  return ((1 << a) & 1) == 0;
 ^
pr76577.cpp:7:21: note: in call to 'foo(-5)'
constexpr int bar = foo (-5);
^
1 error generated.

and ICC 15.0.1:
pr76577.cpp(7): error: function call must have a constant value in a constant
expression
  constexpr int bar = foo (-5);
  ^

[Bug c++/71988] [7 Regression] ICE in dump_simple_decl (gcc/cp/error.c:965)

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71988

Martin Liška  changed:

   What|Removed |Added

 CC||ppalka at gcc dot gnu.org

--- Comment #3 from Martin Liška  ---
*** Bug 76481 has been marked as a duplicate of this bug. ***

[Bug c++/76481] [7 Regression] ICE on (invalid) redeclaration of extern variable as constexpr variable

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76481

Martin Liška  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #3 from Martin Liška  ---
Dup.

*** This bug has been marked as a duplicate of bug 71988 ***

[Bug lto/42613] -save-temps doesn't work completely for -fwhopr

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42613

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED

--- Comment #4 from Andrew Pinski  ---
Been fixed for a long time now :)

[Bug testsuite/41914] /home/dave/opt/gnu/bin/ld: cannot find -lm

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41914

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Andrew Pinski  ---
Been fixed for a while now.

[Bug tree-optimization/44736] -O1 vs malloc hooks

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44736

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |MOVED

--- Comment #5 from Andrew Pinski  ---
Moved to glibc and already fixed there.

[Bug middle-end/43855] assembly generated labels should use hex instead of decimal

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43855

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 CC||pinskia at gcc dot gnu.org
Summary|assembly labels are too |assembly generated labels
   |long|should use hex instead of
   ||decimal
 Ever confirmed|0   |1
   Severity|normal  |enhancement

--- Comment #1 from Andrew Pinski  ---
Confirmed.

[Bug tree-optimization/43543] Reorder the statements in the loop can vectorize it

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43543

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 Blocks||53947
 Ever confirmed|0   |1

--- Comment #2 from Andrew Pinski  ---
Confirmed.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations

[Bug tree-optimization/43422] reversed loop is not vectorized

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43422

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |5.0

--- Comment #1 from Andrew Pinski  ---
Vectorizes for me on aarch64-linux-gnu with GCC 5.4:
.L8:
ldr q0, [x5, x0]
add w1, w1, 1
ldr q1, [x4, x0]
cmp w2, w1
tbl v0.16b, {v0.16b}, v2.16b
tbl v1.16b, {v1.16b}, v2.16b
add v0.4s, v0.4s, v1.4s
tbl v0.16b, {v0.16b}, v2.16b
str q0, [x3, x0]
sub x0, x0, #16
bhi .L8

[Bug c++/65396] Function template default template arguments not merged

[arthur.j.odwyer at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65396

Arthur O'Dwyer  changed:

   What|Removed |Added

 CC||arthur.j.odwyer at gmail dot 
com

--- Comment #2 from Arthur O'Dwyer  ---
FWIW, I just ran into the same thing and confirmed (via Wandbox) that the bug
is there in every GCC up to 7.0.0 (and no Clang, back as far as Clang 3.0).
This is the test case I was using. There is only one function template "f", and
both of its template parameters have defaults by the time it's called:

---

#include 
template void f();
template void f();
template void f() {
puts(__PRETTY_FUNCTION__);
}
int main() {
f();
}

[Bug target/41910] Very basic example failing

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41910

Andrew Pinski  changed:

   What|Removed |Added

 Target||*mingw*
 Status|UNCONFIRMED |WAITING
   Last reconfirmed||2016-08-14
  Component|libgomp |target
 Ever confirmed|0   |1
   Severity|major   |normal

--- Comment #1 from Andrew Pinski  ---
Does this work now?

[Bug middle-end/39046] gcc 4.4.0 20090116 loop unrolling messes optimization

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39046

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
   Severity|normal  |enhancement

[Bug bootstrap/76615] New: First, you must pick a product on which to enter a bug:

[fgjkhdfgh at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76615

Bug ID: 76615
   Summary: First, you must pick a product on which to enter a
bug:
   Product: gcc
   Version: unknown
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: bootstrap
  Assignee: unassigned at gcc dot gnu.org
  Reporter: fgjkhdfgh at yopmail dot com
  Target Milestone: ---

First, you must pick a product on which to enter a bug:

[Bug driver/54210] gcc unable to detect -mprfchw flag in bulldozer machines

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54210

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |4.9.0

--- Comment #4 from Andrew Pinski  ---
Fixed.

[Bug tree-optimization/53979] ((a ^ b) | a) not optimized to (a | b)

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53979

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
Summary|(a^b^b) not simplified to   |((a ^ b) | a) not optimized
   |(a)   (in combination with  |to (a | b)
   |CSE??)  |
 Ever confirmed|0   |1

--- Comment #1 from Andrew Pinski  ---
Confirmed, f1 and f2 are the same now.  So the only thing left is 2 from
comment #0.

[Bug fortran/70598] Fortran OpenACC host_data construct ICE

[cltang at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70598

--- Comment #4 from Chung-Lin Tang  ---
Author: cltang
Date: Sun Aug 14 18:19:10 2016
New Revision: 239457

URL: https://gcc.gnu.org/viewcvs?rev=239457=gcc=rev
Log:
2016-08-14  Chung-Lin Tang  

PR fortran/70598

gcc/fortran/
* openmp.c (resolve_omp_clauses): Adjust use_device clause
handling to only allow pointers and arrays.

gcc/testsuite/
* gfortran.dg/goacc/host_data-tree.f95: Adjust to use pointers
in use_device clause.
* gfortran.dg/goacc/uninit-use-device-clause.f95: Likewise.
* gfortran.dg/goacc/list.f95: Adjust to catch
"neither a POINTER nor an array" error messages.

libgomp/
* testsuite/libgomp.oacc-fortran/host_data-1.f90: New test.


Added:
trunk/libgomp/testsuite/libgomp.oacc-fortran/host_data-1.f90
Modified:
trunk/gcc/fortran/ChangeLog
trunk/gcc/fortran/openmp.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gfortran.dg/goacc/host_data-tree.f95
trunk/gcc/testsuite/gfortran.dg/goacc/list.f95
trunk/gcc/testsuite/gfortran.dg/goacc/uninit-use-device-clause.f95
trunk/libgomp/ChangeLog

[Bug tree-optimization/76607] norton phone number norton tech support phone number norton customer service phone number norton contact number

[vxbnvhj at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76607

hdfdjbdf  changed:

   What|Removed |Added

Summary|Before reporting a bug, |norton phone number norton
   |please read the bug writing |tech support phone number
   |guidelines, please look at  |norton customer service
   |the list of most frequently |phone number norton contact
   |reported bugs, and please   |number
   |search for the bug. |

--- Comment #1 from hdfdjbdf  ---
norton phone number norton tech support phone number norton customer service
phone number norton contact number

[Bug tree-optimization/76607] New: Before reporting a bug, please read the bug writing guidelines, please look at the list of most frequently reported bugs, and please search for the bug.

[vxbnvhj at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76607

Bug ID: 76607
   Summary: Before reporting a bug, please read the bug writing
guidelines, please look at the list of most frequently
reported bugs, and please search for the bug.
   Product: gcc
   Version: unknown
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: tree-optimization
  Assignee: unassigned at gcc dot gnu.org
  Reporter: vxbnvhj at yopmail dot com
  Target Milestone: ---

Before reporting a bug, please read the bug writing guidelines, please look at
the list of most frequently reported bugs, and please search for the bug.

Before reporting that GCC compiles your code incorrectly, compile it with gcc
-Wall -Wextra and see whether this shows anything wrong with your code.
Similarly, if compiling with -fno-strict-aliasing -fwrapv makes a difference,
your code probably is not correct.

[Bug target/53772] Failed to combine load and jump on vtable

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53772

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
   Severity|normal  |enhancement

[Bug c/53593] #pragma prefetch

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53593

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1

--- Comment #3 from Andrew Pinski  ---
Confirmed, this would be a nice feature to have.

[Bug target/53485] gcc -O -mavx generates illegal instruction on win64

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53485

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |WAITING
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1

--- Comment #3 from Andrew Pinski  ---
Does this work now with a newer version of GCC?

[Bug bootstrap/53423] gcc/32/crtbegin.o: wrong ELF class: ELFCLASS64

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53423

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |WORKSFORME

--- Comment #3 from Andrew Pinski  ---
This works for many other people.  Most likely an env variable was set to use
-m64 somewhere.  Closing as works for me.

[Bug target/53090] suboptimal ivopt

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53090

--- Comment #6 from Andrew Pinski  ---
This might be fixed now with GCC 6.  There has been many improvements to IVOPTs
during GCC 6 time frame.

[Bug tree-optimization/52198] SLP vectorization does not consider swapped operands consistently

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52198

--- Comment #1 from Andrew Pinski  ---
Is this still true?

[Bug boehm-gc/76601] New: fghfg

[dfsd34dfds5 at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76601

Bug ID: 76601
   Summary: fghfg
   Product: gcc
   Version: c++-concepts
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: boehm-gc
  Assignee: unassigned at gcc dot gnu.org
  Reporter: dfsd34dfds5 at yopmail dot com
  Target Milestone: ---

fhfgh

[Bug tree-optimization/51964] Missed tail merging opportunity

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51964

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1
   Severity|minor   |enhancement

--- Comment #2 from Andrew Pinski  ---
Confirmed.

[Bug tree-optimization/51781] Missed optimization for ==/!= comparison type-sinking

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51781

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1
   Severity|normal  |enhancement

--- Comment #1 from Andrew Pinski  ---
Confirmed.

[Bug tree-optimization/51780] Missed optimization for ==/!= comparison

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51780

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1
   Severity|normal  |enhancement

--- Comment #1 from Andrew Pinski  ---
Confirmed.

[Bug middle-end/58919] run with thread error, until i set -fprofile-arcs flag

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58919

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |WAITING
   Last reconfirmed||2016-08-14
  Component|c++ |middle-end
 Ever confirmed|0   |1

--- Comment #1 from Andrew Pinski  ---
Can you provide a testcase and provide the exact error message that is being
produced?

[Bug tree-optimization/58879] PPC: Missed opportunity to use lwbrx

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58879

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |RESOLVED
  Component|target  |tree-optimization
 Resolution|--- |FIXED
   Target Milestone|--- |5.0

--- Comment #1 from Andrew Pinski  ---
Fixed for at least GCC 5 so closing as such.

[Bug libgcc/61238] Getting Linker error

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61238

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |WAITING
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1

--- Comment #1 from Andrew Pinski  ---
Can you provide more information?  Like what GCC version and what target?
The exact output of GCC here?

[Bug target/72867] SSE/AVX/AVX512: incorrect optimization of VMINPS/VMAXPS at compile time

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72867

Uroš Bizjak  changed:

   What|Removed |Added

 Status|UNCONFIRMED |ASSIGNED
   Last reconfirmed||2016-08-14
   Assignee|unassigned at gcc dot gnu.org  |ubizjak at gmail dot com
 Ever confirmed|0   |1

--- Comment #3 from Uroš Bizjak  ---
Created attachment 39435
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39435=edit
Proposed patch

I'm testing the attached patch.

[Bug rtl-optimization/61278] ICE with LTO (lto-wrapper failed) on x86_64-linux-gnu in 64-bit mode

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61278

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED
   Target Milestone|--- |5.0

--- Comment #5 from Andrew Pinski  ---
Fixed so closing as such.

[Bug tree-optimization/58039] -ftree-vectorizer makes a loop crash on a non-aligned memory

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58039

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |INVALID

--- Comment #6 from Andrew Pinski  ---
Not a bug, Use -fsanitizer=undefined to find them in a recent version of GCC.

[Bug tree-optimization/57962] Missed SLP opportunity

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57962

--- Comment #1 from Andrew Pinski  ---
There is at least some SLP going on with the trunk GCC on aarch64-linux-gnu.

[Bug tree-optimization/54346] combine permutations

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54346

Andrew Pinski  changed:

   What|Removed |Added

   Keywords||missed-optimization
 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 Ever confirmed|0   |1

--- Comment #1 from Andrew Pinski  ---
Confirmed.

[Bug other/57928] Doesn't compile with ISL 0.12

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57928

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |WONTFIX

--- Comment #2 from Andrew Pinski  ---
0.12 is no longer supported with the latest gcc so closing as won't fix.

[Bug bootstrap/57900] /usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h: No such file or directory

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57900

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |WONTFIX

--- Comment #5 from Andrew Pinski  ---
Not going to fix any time soon or at all.

[Bug c++/71885] Incorrect code generated with -01, memset() function call is missing

[kern at sibbald dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71885

--- Comment #17 from Kern Sibbald  ---
It is pretty difficult to argue with the developers because they know the
"rules", better than most programmers.  However, here in my opinion they used
very poor judgement, by implementing a change that they were fully aware would
break many programs (they documented it as such).  

It is one thing to "force" C++ programmers to do what the developers think is
correct, but it is very bad thing to modify a compiler knowing that it will
break a lot of code.  There are probably thousands of users out there who are
now experiencing seg faults due to changes such as this.  

Many programmers such as myself rely on C++ but we prefer not to run on
bleeding edge systems, and we do not have the means to test our software on all
new systems and new compilers.  In this case, various bleeding edge distros
switch to gcc 6.0 and compile and release programs that seg fault out of the
box. These distros do not have the time or personnel to test every single
program. The result is that bad code is released.  This is and was unnecessary.
 Yes, we the programmers has options and can fix it.  What was unnecessary was
to release a new compiler that the developers knew would produce code that
fails.

The g++ developers could have realized that in especially in "undefined"
territory where they knew they would break code the conservative way to do it
without creating chaos is to add new strict warning message for a period of
time (one to two years) prior to making their changes default.

[Bug c++/76577] New: Tree folding may remove UB which causes invalid constexpr function calls to be accepted

[ppalka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76577

Bug ID: 76577
   Summary: Tree folding may remove UB which causes invalid
constexpr function calls to be accepted
   Product: gcc
   Version: 7.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: c++
  Assignee: unassigned at gcc dot gnu.org
  Reporter: ppalka at gcc dot gnu.org
  Target Milestone: ---

Test case:

constexpr int
foo (int a)
{
  return ((1 << a) & 1) == 0;
}

constexpr int bar = foo (-5);


g++ accepts this program even though the call to foo(-5) invokes UB (left shift
by a negative shift count) because the "((1 << a) & 1) == 0" gets folded by
match.pd to "a != 0" and the constexpr machinery evaluates this folded function
body instead of the original function body that contains the left shift.

[Bug boehm-gc/76574] New: avg

[charles.williams132016 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76574

Bug ID: 76574
   Summary: avg
   Product: gcc
   Version: fortran-dev
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: boehm-gc
  Assignee: unassigned at gcc dot gnu.org
  Reporter: charles.williams132016 at gmail dot com
  Target Milestone: ---

avg cvbdfg

[Bug boehm-gc/76573] New: dfgdf

[charles.williams132016 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76573

Bug ID: 76573
   Summary: dfgdf
   Product: gcc
   Version: lto
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: boehm-gc
  Assignee: unassigned at gcc dot gnu.org
  Reporter: charles.williams132016 at gmail dot com
  Target Milestone: ---

gdfgdfg

[Bug tree-optimization/55846] Cannot sink conditional code

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55846

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 CC||pinskia at gcc dot gnu.org
 Ever confirmed|0   |1

--- Comment #1 from Andrew Pinski  ---
Confirmed.

[Bug tree-optimization/57650] Suboptimal code after TRUTH_AND_EXPR is changed into BIT_AND_EXPR

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57650

--- Comment #1 from Andrew Pinski  ---
For aarch64-linux-gnu the same code is produced for both of these functions.

[Bug libstdc++/58909] C++11's condition variables fail with static linking

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58909

Andrew Pinski  changed:

   What|Removed |Added

 CC||roland at gnu dot org

--- Comment #4 from Andrew Pinski  ---
*** Bug 57740 has been marked as a duplicate of this bug. ***

[Bug libstdc++/57740] C++11 std::thread not usable with static linking

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57740

Andrew Pinski  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #13 from Andrew Pinski  ---
This is not really as gcc bug but rather not understanding weak symbols vs
archives.  Anyways this is a dup of bug 58909.

*** This bug has been marked as a duplicate of bug 58909 ***

[Bug c++/71885] Incorrect code generated with -01, memset() function call is missing

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71885

Manuel López-Ibáñez  changed:

   What|Removed |Added

 CC||manu at gcc dot gnu.org

--- Comment #16 from Manuel López-Ibáñez  ---
I think the relevant part of the standard may be:

C++98 [class.cdtor]:

  For an object of non-POD class type ... before the constructor
  begins execution ... referring to any non-static member or base
  class of the object results in undefined behavior

https://gcc.gnu.org/ml/gcc/2016-02/msg00207.html

But neither the manual nor the porting_to guide are very clear regarding this.
Would it be hard to diagnose such uses? (since any use is forbidden!).

[Bug c++/76481] [7 Regression] ICE on (invalid) redeclaration of extern variable as constexpr variable

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76481

Martin Liška  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
 CC||jason at gcc dot gnu.org,
   ||marxin at gcc dot gnu.org
  Known to work||6.1.0
Summary|ICE on (invalid)|[7 Regression] ICE on
   |redeclaration of extern |(invalid) redeclaration of
   |variable as constexpr   |extern variable as
   |variable|constexpr variable
 Ever confirmed|0   |1

--- Comment #2 from Martin Liška  ---
Started with r238558.

[Bug target/76342] AVX512: _mm512_undefined_epi32() intrinsic missing (incorrectly named _mm512_undefined_si512)

[wen...@mitsuba-renderer.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76342

Wenzel Jakob  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Wenzel Jakob  ---
Great, thank you!

[Bug rtl-optimization/72843] [7 Regression] internal compiler error: in lra_set_insn_recog_data, at lra.c:964

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72843

--- Comment #7 from uros at gcc dot gnu.org ---
Author: uros
Date: Sun Aug 14 13:42:38 2016
New Revision: 239456

URL: https://gcc.gnu.org/viewcvs?rev=239456=gcc=rev
Log:
Backport from mainline
2016-08-14  Uros Bizjak  

PR target/76342
* config/i386/avx512fintrin.h (_mm512_undefined_epi32):
Renamed from _mm512_undefined_si512.
(_mm_undefined_si512): New definition.

Backport from mainline:
2016-08-09  David Wohlferd  

* config/i3836/avx512fintrin.h (_mm512_cvtsepi64_epi32): Remove
unused variable __O.

Backport from mainline:
2016-08-09  Uros Bizjak  

PR target/72843
* config/i386/i386.md (*movtf_internal): Use
lra_in_progress || reload_completed instead of !can_create_pseudo_p
in the insn constraint.
(*movxf_internal): Ditto.
(*movdf_internal): Ditto.
(*movsf_internal): Ditto.

testsuite/ChangeLog:

Backport from mainline
2016-08-14  Uros Bizjak  

PR target/76342
* gcc.target/i386/pr76342.c: New test.


Added:
branches/gcc-6-branch/gcc/testsuite/gcc.target/i386/pr76342.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/config/i386/avx512bwintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512dqintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512fintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512ifmaintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512ifmavlintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vbmiintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vbmivlintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vlbwintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vldqintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vlintrin.h
branches/gcc-6-branch/gcc/config/i386/i386.md
branches/gcc-6-branch/gcc/testsuite/ChangeLog

[Bug target/76342] AVX512: _mm512_undefined_epi32() intrinsic missing (incorrectly named _mm512_undefined_si512)

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76342

--- Comment #2 from uros at gcc dot gnu.org ---
Author: uros
Date: Sun Aug 14 13:42:38 2016
New Revision: 239456

URL: https://gcc.gnu.org/viewcvs?rev=239456=gcc=rev
Log:
Backport from mainline
2016-08-14  Uros Bizjak  

PR target/76342
* config/i386/avx512fintrin.h (_mm512_undefined_epi32):
Renamed from _mm512_undefined_si512.
(_mm_undefined_si512): New definition.

Backport from mainline:
2016-08-09  David Wohlferd  

* config/i3836/avx512fintrin.h (_mm512_cvtsepi64_epi32): Remove
unused variable __O.

Backport from mainline:
2016-08-09  Uros Bizjak  

PR target/72843
* config/i386/i386.md (*movtf_internal): Use
lra_in_progress || reload_completed instead of !can_create_pseudo_p
in the insn constraint.
(*movxf_internal): Ditto.
(*movdf_internal): Ditto.
(*movsf_internal): Ditto.

testsuite/ChangeLog:

Backport from mainline
2016-08-14  Uros Bizjak  

PR target/76342
* gcc.target/i386/pr76342.c: New test.


Added:
branches/gcc-6-branch/gcc/testsuite/gcc.target/i386/pr76342.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/config/i386/avx512bwintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512dqintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512fintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512ifmaintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512ifmavlintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vbmiintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vbmivlintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vlbwintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vldqintrin.h
branches/gcc-6-branch/gcc/config/i386/avx512vlintrin.h
branches/gcc-6-branch/gcc/config/i386/i386.md
branches/gcc-6-branch/gcc/testsuite/ChangeLog

[Bug target/76535] New: [SH] Replace shll addc sequence with cmp/pz subc

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76535

Bug ID: 76535
   Summary: [SH] Replace shll addc sequence with cmp/pz subc
   Product: gcc
   Version: 7.0
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: target
  Assignee: unassigned at gcc dot gnu.org
  Reporter: olegendo at gcc dot gnu.org
  Target Milestone: ---
Target: sh*-*-*

In CSiBE jikespg-1.3/src/tabutil, function itoc:

static const char digits[] = "0123456789";
extern char *output_ptr;

void itoc(int num)
{
  int val;
  char *p;
  char tmp[12];
  val = (((num) < 0) ? -(num) : (num));
  tmp[11] = '\0';
  p = [11];

  do
  {
p--;
*p = digits[val % 10];
val /= 10;
  } while(val > 0);

  if (num < 0)
  {
p--;
*p = '-';
  }

  while (*p != '\0')
*(output_ptr++) = *(p++);
}


There is the following sequence when compiling with -O2:

mov.l   .L14,r1
mov r6,r2  <<<
mov #0,r0
mov r7,r3
dmuls.l r1,r6
sts mach,r5
sharr5
sharr5
shllr2 <<<
addcr0,r5  <<<  r5 = 0 + r5 + (r2 < 0)

Because shll mutates the operand, another register is needed.  The sequence can
be improved by using cmp/pz and subc instead:

mov.l   .L14,r1
mov #-1,r0
mov r7,r3
dmuls.l r1,r6
sts mach,r5
sharr5
sharr5
cmp/pz  r6
subcr0,r5  <<< r5 = r5 - (-1) - (r2 >= 0)
  = r5 + 1 - (r2 >= 0)
  = r5 + (r2 < 0)


Unfortunately, the addc pattern is captured as:

(insn 54 53 56 4 (parallel [
(set (reg:SI 205)
(plus:SI (gt:SI (reg:SI 211)
(reg/v:SI 187 [ val ]))
(reg:SI 209)))
(clobber (reg:SI 147 t))
]) sh_tmp.cpp:16 41 {*addc_t_r}
 (expr_list:REG_UNUSED (reg:SI 147 t)
(expr_list:REG_DEAD (reg:SI 209)
(nil

where reg 211 is initialized in another BB to zero:

(insn 51 45 119 2 (set (reg:SI 211)
(const_int 0 [0])) sh_tmp.cpp:16 180 {movsi_ie}
 (nil))

This makes it difficult to add a special case in the main *addc insn_and_split
pattern, as the constant load is CSE'ed before combine and it will not get a
chance to canonicalize the comparison.


The initial expansion of the comparison looks strange:

(insn 69 68 70 (set (reg:SI 223)
(const_int 0 [0])) sh_tmp.cpp:17 -1
 (nil))

(insn 70 69 71 (set (reg:SI 147 t)
(gt:SI (reg:SI 223)
(reg/v:SI 187 [ val ]))) sh_tmp.cpp:17 -1
 (nil))

(insn 71 70 72 (set (reg:SI 222)
(neg:SI (reg:SI 147 t))) sh_tmp.cpp:17 -1
 (expr_list:REG_EQUAL (ashiftrt:SI (reg/v:SI 187 [ val ])
(const_int 31 [0x1f]))
(nil)))

... and it doesn't go through the cstoresi4 expander and hence also has no
chance to get canonicalized.  Looks like this comes from the division / modulo
optimization...

[Bug ada/76533] New: ftftftftf

[david123 at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76533

Bug ID: 76533
   Summary: ftftftftf
   Product: gcc
   Version: lto
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: ada
  Assignee: unassigned at gcc dot gnu.org
  Reporter: david123 at yopmail dot com
  Target Milestone: ---

ryyftftftf

[Bug ada/76531] New: ftfyfyg

[david123 at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76531

Bug ID: 76531
   Summary: ftfyfyg
   Product: gcc
   Version: trans-mem
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: ada
  Assignee: unassigned at gcc dot gnu.org
  Reporter: david123 at yopmail dot com
  Target Milestone: ---

fyfyfv

[Bug c++/76521] New: Explicit template instantiation suppresses defaulted inline move constructor

[rustamabd at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76521

Bug ID: 76521
   Summary: Explicit template instantiation suppresses defaulted
inline move constructor
   Product: gcc
   Version: 6.1.1
Status: UNCONFIRMED
  Keywords: rejects-valid
  Severity: normal
  Priority: P3
 Component: c++
  Assignee: unassigned at gcc dot gnu.org
  Reporter: rustamabd at gmail dot com
  Target Milestone: ---

Created attachment 39434
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39434=edit
test case.cpp

It seems that an explicitly defaulted constructors are sometimes suppressed by
the declaration of an explicitly instantiated template.

As in this example:

#include 

template
struct Obj {
  std::vector member;
  Obj() { }
  Obj(Obj&&) = default;
};

extern template struct Obj;

int main() {
  Obj o1;
  Obj o2(std::move(o1));
}

template struct Obj;


Command line:
g++ -std=c++14 a.cpp

Error message:
a.cpp:(.text+0x34): undefined reference to `Obj::Obj(Obj&&)'


I believe this is a bug because:

1) [dcl.fct.def.default]/5: "A user-provided explicitly-defaulted function
(i.e., explicitly defaulted after its first declaration) is defined at the
point where it is explicitly defaulted."

2) class.mfct]/1: "A member function may be defined ([dcl.fct.def]) in its
class definition, in which case it is an inline member function
([dcl.fct.spec])"

So the move-constructor is definitely "inline".

Then we have:

3) [temp.explicit]/10: "Except for inline functions and variables, ...,
explicit instantiation declarations have the effect of suppressing the implicit
instantiation of the entity to which they refer. [ Note: The intent is that an
inline function that is the subject of an explicit instantiation declaration
will still be implicitly instantiated when odr-used ([basic.def.odr]) so that
the body can be considered for inlining, but that no out-of-line copy of the
inline function would be generated in the translation unit. — end note ]"

So, the move-constructor should not have been suppressed by "extern template
struct Obj".

Interestingly, any optimization level other than O0 makes the error go away:
g++ -std=c++14 -O1 a.cpp
- no errors

[Bug regression/71231] [7 Regression]: 300% runtime increase for rnflow

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71231

Uroš Bizjak  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #16 from Uroš Bizjak  ---
This problem seems fixed. The runtimes are back to normal.

[Bug target/71241] [x86] Missing built-in functions for float128 NaNs

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71241

Uroš Bizjak  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Uroš Bizjak  ---
Fixed.

[Bug target/71245] std::atomic load/store bounces the data to the stack using fild/fistp

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71245

Uroš Bizjak  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution|--- |FIXED

--- Comment #5 from Uroš Bizjak  ---
Fixed.

[Bug target/76342] AVX512: _mm512_undefined_epi32() intrinsic missing (incorrectly named _mm512_undefined_si512)

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76342

--- Comment #1 from uros at gcc dot gnu.org ---
Author: uros
Date: Sun Aug 14 11:24:18 2016
New Revision: 239453

URL: https://gcc.gnu.org/viewcvs?rev=239453=gcc=rev
Log:
PR target/76342
* config/i386/avx512fintrin.h (_mm512_undefined_epi32):
Renamed from _mm512_undefined_si512.
(_mm_undefined_si512): New definition.

testsuite/ChangeLog:

PR target/76342
* gcc.target/i386/pr76342.c: New test.


Added:
trunk/gcc/testsuite/gcc.target/i386/pr76342.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/avx512bwintrin.h
trunk/gcc/config/i386/avx512dqintrin.h
trunk/gcc/config/i386/avx512fintrin.h
trunk/gcc/config/i386/avx512vbmiintrin.h
trunk/gcc/testsuite/ChangeLog

[Bug c++/71885] Incorrect code generated with -01, memset() function call is missing

[hyc at symas dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71885

--- Comment #15 from hyc at symas dot com ---
(In reply to Markus Trippelsdorf from comment #3)
> See https://gcc.gnu.org/gcc-6/porting_to.html (More aggressive optimization
> of -flifetime-dse).
> 
> You're invoking undefined behavior; -flifetime-dse=1 is a workaround.

"More aggressive optimization of -flifetime-dse

The C++ compiler (with enabled -flifetime-dse) is more aggressive in dead-store
elimination in situations where a memory store to a location precedes a
constructor to the memory location."

This bug report is talking about a store that occurs *during* the constructor.
This does not *precede* the constructor.

[Bug bootstrap/76492] New: NORTON Symantec 1-888-300-9067 NORTON technical number NORTON antivirus technical support phone

[sophiya.585 at yopmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76492

Bug ID: 76492
   Summary: NORTON Symantec 1-888-300-9067 NORTON technical number
NORTON antivirus technical support phone
   Product: gcc
   Version: trans-mem
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: bootstrap
  Assignee: unassigned at gcc dot gnu.org
  Reporter: sophiya.585 at yopmail dot com
  Target Milestone: ---

NORTON Symantec 1-888-300-9067 NORTON technical number NORTON antivirus
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[Bug c++/71885] Incorrect code generated with -01, memset() function call is missing

[hyc at symas dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71885

hyc at symas dot com changed:

   What|Removed |Added

 CC||hyc at symas dot com

--- Comment #14 from hyc at symas dot com ---
(In reply to Markus Trippelsdorf from comment #8)
> See Initializers 8.6.12:  
> 
> When storage for an object with automatic or dynamic storage duration is
> obtained, the object has an indeterminate value, and if no initialization is
> performed for the object, that object retains an indeterminate value until
> that value is replaced (5.17).

"If no initialization is performed" - this is the constructor, whose job is to
create and initialize the object, and you're preventing that initialization
from happening. How is that logical?

[Bug tree-optimization/76490] [5/6/7 Regression] when use -O2 -fcheck-founds compiler appears to hang and consumes all memory

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76490

Dominique d'Humieres  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
   Last reconfirmed||2016-08-14
  Known to work||4.9.4
Summary|when use -O2 -fcheck-founds |[5/6/7 Regression] when use
   |compiler appears to hang|-O2 -fcheck-founds compiler
   |and consumes all memory |appears to hang and
   ||consumes all memory
 Ever confirmed|0   |1
  Known to fail||5.4.0, 6.1.0, 7.0

--- Comment #3 from Dominique d'Humieres  ---
Confirmed with '-O1 -fcheck=bounds -ftree-vrp' from 5.4.0 up to trunk (7.0).
The test compiles with '-O2 -fcheck=bounds -fno-tree-vrp'.

The change occurred between revisions r226476 (2015-08-02, compiles) and
r227016 (2015-08-19, hangs).