Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: pc at us dot ibm.com
Target Milestone: ---
Created attachment 39671
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39671=edit
testcase where always_inline fails with -fgnu-tm
I've used several differ
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77681
Paul Clarke changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53991
--- Comment #11 from Paul Clarke ---
We use TM for a multi-producer-multi-consumer queue implementation, and ran
into the issue reported in this bug. (I had opened bug 77681 before
discovering this report.) This report is surprisingly old. Is
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77681
--- Comment #1 from Paul Clarke ---
shoot. this may be a dup of bug 53991
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53991
Paul Clarke changed:
What|Removed |Added
CC||pc at us dot ibm.com
--- Comment #10 from
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83402
--- Comment #2 from Paul Clarke ---
I'd like to take a stab at fixing this.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83402
--- Comment #6 from Paul Clarke ---
(In reply to Steven Munroe from comment #5)
> You need to look at the generated asm code. And see what the compiler is
> doing.
>
> Basically it should be generating a vspltisw vr,si for vec_splat_s32.
>
>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83402
--- Comment #8 from Paul Clarke ---
(In reply to Steven Munroe from comment #7)
> Please try the same test with AT11 gcc7. I know I hit this!
voila!
$ /opt/at11.0/bin/gcc -o 83402 83402.c -DNO_WARN_X86_INTRINSICS -Wall
-mcpu=power8 -O3
In file
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83402
--- Comment #4 from Paul Clarke ---
Created attachment 43829
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43829=edit
unhelpful testcase
$ gcc --version
gcc (GCC) 8.0.1 20180402 (experimental)
Copyright (C) 2018 Free Software Foundation,
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83402
--- Comment #3 from Paul Clarke ---
(In reply to Steven Munroe from comment #0)
> The rs6000/emmintrin.h implementation of _mm_slli_epi32 reports:
> error: argument 1 must be a 5-bit signed literal
>
> For constant shift values > 15.
I
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pc at us dot ibm.com
Target Milestone: ---
Created attachment 48512
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48512=edit
test case
This:
--
vector unsigned char a = { 0xFF, 0xFF, 0x00, 0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95082
Paul Clarke changed:
What|Removed |Added
CC||pc at us dot ibm.com
--- Comment #2 from
Assignee: unassigned at gcc dot gnu.org
Reporter: pc at us dot ibm.com
Target Milestone: ---
I sent this to gcc-patches, but realized I should open a bug report:
--
The subject commit, 3804e937b0e252a7e42632fe6d9f898f1851a49c, causes a
failure in the test suite for the IBM
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98875
--- Comment #3 from Paul Clarke ---
The IBM Advance Toolchain supports SLES 15, where the latest version of libdw
is 0.168. We'll work around the issue by reverting the commit for the version
of GCC included with the Advance Toolchain.
I didn't
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107
--- Comment #2 from Paul Clarke ---
Created attachment 51369
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51369=edit
creduced version (tiny, but ugly)
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pc at us dot ibm.com
Target Milestone: ---
Created attachment 51367
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51367=edit
preprocessed source (large)
I've been working on an effort to improve Pyt
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107
Paul Clarke changed:
What|Removed |Added
Attachment #51367|0 |1
is obsolete|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107
--- Comment #11 from Paul Clarke ---
This does produce the issue for me:
--
$ git checkout remotes/vendors/ibm/gcc-11-branch gcc-AT
$ mkdir gcc-AT-build
$ cd gcc-AT-build
$ ../gcc-AT/configure --enable-languages=c,c++ --disable-libada
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107
--- Comment #3 from Paul Clarke ---
Created attachment 51371
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51371=edit
preprocessed source (a bit smaller)
I was able to cut out a bit more than half of the original code. It gets more
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107
--- Comment #4 from Paul Clarke ---
Created attachment 51372
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51372=edit
preprocessed source (yet a bit smaller)
I was able to remove one of the cases of the switch statement in the function
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107
--- Comment #8 from Paul Clarke ---
$ /opt/at15.0/bin/gcc --version
gcc (GCC) 11.2.1 20210802 (Advance-Toolchain 15.0-0) [ebcfb7a665c2]
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101893
--- Comment #1 from Paul Clarke ---
I'll take ownership of this, except I'm not sure how to effect that.
The fix has been posted
https://gcc.gnu.org/pipermail/gcc-patches/2021-August/577023.html, and awaits
reviews/approval.
Assignee: unassigned at gcc dot gnu.org
Reporter: pc at us dot ibm.com
Target Milestone: ---
The assembler option "-many" tells the assembler to support assembly of
instructions from any vintage of processor. This can be passed through the GCC
compiler using the command l
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pc at us dot ibm.com
Target Milestone: ---
On all Power targets which support hardware floating-point, there are a few
manipulations of the Floating-Point Status and Control Register (FPSCR) that
have side-effects
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102485
--- Comment #2 from Paul Clarke ---
GCC putting the base ".machine" directive at the beginning of the file makes
any command-line use of "-many" (-Wa,-many) be ignored. Is that OK? "-many"
is supposed to make those black boxes just work.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107
Paul Clarke changed:
What|Removed |Added
Resolution|--- |FIXED
Status|NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107
--- Comment #5 from Paul Clarke ---
Fails with "-mcpu=power10" and "-O2" or "-O3".
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