: rogerio.souza at gmail dot com
Target Milestone: ---
Host: x86_64
Created attachment 55948
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55948=edit
Teste case to reproduce the optimization issue
In some cases, reinitializing an object of a standard-layout class with a
triv
, diagnostic, missed-optimization, patch
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: rogerio.souza at gmail dot com
Target Milestone: ---
The following C++ code compiled with "-c -O1 -std=gn
/gcc/Warning-Options.htm
l
Status: UNCONFIRMED
Keywords: documentation
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: rogerio.souza at gmail dot com
Target
Keywords: diagnostic, missed-optimization
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: rogerio.souza at gmail dot com
Target Milestone: ---
Created attachment 55432
--> ht
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107852
--- Comment #17 from Rogério de Souza Moraes
---
Created attachment 55428
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55428=edit
Preprocessed file for GCC 13.1.0 bug
This is the preprocessed file (*.i*) that triggers the bug reported
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107852
Rogério de Souza Moraes changed:
What|Removed |Added
CC||rogerio.souza at gmail dot
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107004
--- Comment #5 from Rogério de Souza Moraes ---
I tried to apply the patch r13-3596-ge7310e24b1c0ca67, but it has not fixed the
issue. Although, the issue is not reproducible on GCC 13.1.0.
Status: UNCONFIRMED
Keywords: TREE
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: rogerio.souza at gmail dot com
Target Milestone: ---
The code below triggers
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106238
--- Comment #4 from Rogério de Souza Moraes ---
Hi Andrew,
thank you for the quick reply. The "getLocalCopy" on this example is just to
provide a quick way to reproduce the issue. Here is the getLocalCopy function
of this example.
extern void
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106238
--- Comment #3 from Rogério de Souza Moraes ---
Created attachment 53288
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53288=edit
Second example to reproduce the issue
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106238
--- Comment #2 from Rogério de Souza Moraes ---
Created attachment 53287
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53287=edit
C++ code to reproduce the issue.
C++ code to reproduce the issue.
NCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: rogerio.souza at gmail dot com
Target Milestone: ---
Created attachment 53282
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53282=edit
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105593
--- Comment #6 from Rogério de Souza Moraes ---
I got another example with similar warning:
#
#include
//#pragma GCC diagnostic push
//#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
#include
//#pragma GCC diagnostic
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105593
--- Comment #3 from Rogério de Souza Moraes ---
The code attached in the previous comment triggers the "warning: '__Y' is used
uninitialized [-Wuninitialized]".
The command line to compile it is:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105593
--- Comment #2 from Rogério de Souza Moraes ---
Created attachment 52971
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52971=edit
C code to trigger the uninitialized warning
The C code attached reproduces the uninitialized warning when
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: rogerio.souza at gmail dot com
Target Milestone: ---
When using avx512 math function we got the following warning:
//lib/gcc/x86_64-redhat-linux/12.1.0/include/avx512fintrin.h:6994:10
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91257
--- Comment #14 from Rogério de Souza Moraes
---
Created attachment 49747
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49747=edit
File which all the 'try' macros are taken out to separate routines, for build
performance improvement
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91257
--- Comment #13 from Rogério de Souza Moraes
---
Created attachment 49746
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49746=edit
File that reproduces the current structure and has performance issues.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91257
Rogério de Souza Moraes changed:
What|Removed |Added
CC||rogerio.souza at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63155
--- Comment #54 from Rogério de Souza Moraes
---
Hi everyone,
we continue to get performance degradation as we use a new compiler version to
build the source code 'testcase-v1.c" that is available in the attachment
above.
Could you please
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63155
--- Comment #53 from Rogério de Souza Moraes
---
Created attachment 46627
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46627=edit
New testcase that shows performance degradation in GCC 9.1
This new testcase that shows performance
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63155
--- Comment #50 from Rogério de Souza Moraes
---
Created attachment 44848
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44848=edit
GCC 6.3.0 consolidated patch based on Richard's patches
The patch attached is a backport based on
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63155
--- Comment #35 from Rogério de Souza Moraes
---
Created attachment 44791
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44791=edit
Small testcase more similar to original environment
Hi Richard,
this is a new testcase, based on another
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: rogerio.souza at gmail dot com
Target Milestone: ---
In 2013 a bug was filed to fix a large performance degradation on
reverse-sorted array, which got fixed:
https://gcc.gnu.org/bugzilla
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