++
Assignee: unassigned at gcc dot gnu.org
Reporter: nbkolchin at gmail dot com
Target Milestone: ---
The following obviously incorrect program compiles without error under g++:
#include
int main(int argc, char** argv)
{
goto L_bug;
printf("%s, %s %s\n", "H
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53431
--- Comment #38 from Nickolay Kolchin-Semyonov ---
Since this is a long standing problem, maybe this limitation should be
mentioned in official documentation?
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: nbkolchin at gmail dot com
Target Milestone: ---
https://godbolt.org/z/x2vI6l
Sample code:
#include
int test(uint32_t v)
{
uint8_t a = (v >> 24) & 0xFF; // ERROR: produc
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: nbkolchin at gmail dot com
Target Milestone: ---
https://godbolt.org/z/J0xdIL
Sample code:
#pragma GCC diagnostic ignored "-Wdate-time"
const char* g_test
: c
Assignee: unassigned at gcc dot gnu.org
Reporter: nbkolchin at gmail dot com
Target Milestone: ---
BUG: calling SSE function with vector argument
from non-SSE code (admittedly, Bad Idea) silently
miscompiles (breaking calling convention).
I would appreciate an error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88587
--- Comment #1 from Nickolay Kolchin-Semyonov ---
Error seems to happen when both:
1. Vector extensions are used.
2. Both SSE and non-SSE versions are requested.
Error seems to be present in all GCC versions since 6.1 (which introduced
target_
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: nbkolchin at gmail dot com
Target Milestone: ---
https://godbolt.org/z/I8yw2T
typedef float __attribute__((vector_size(16))) simd4f;
__attribute__((target_clones
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57358
--- Comment #2 from Nickolay Kolchin-Semyonov ---
More simplified test variant:
struct t { void (*func)(void*); };
void test_func(struct t* a) __attribute__((optimize("O0")));
void test_func(struct t* a)
{
a->func(0);
}
P.S. If you compile thi
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57358
--- Comment #1 from Nickolay Kolchin-Semyonov ---
Reproducable with gcc-4.8.1.
Using built-in specs.
COLLECT_GCC=gcc-4.8.1
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.8.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/mn
: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: nbkolchin at gmail dot com
Created attachment 30157
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30157&action=edit
backtrace
The following code crashes GCC (gcc-4.8.0 -O2):
typedef void (*done)(vo
--- Comment #4 from nbkolchin at gmail dot com 2007-09-15 12:13 ---
There are no differences in "cc1 --target-help" output. I will try to split
scimark in small pieces and test them separately. Thank you for your help.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33431
--- Comment #2 from nbkolchin at gmail dot com 2007-09-14 16:10 ---
Thank you for your reply.
Variants:
- you are not using: "-m4 -ml", but some other architecture settings.
- SH7751R and SH7750R have different instruction pipeline (probably not, both
are SH4-200 variants
ssigned at gcc dot gnu dot org
ReportedBy: nbkolchin at gmail dot com
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: sh-unknown-rtemself
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33431
--- Comment #1 from nbkolchin at gmail dot com 2006-11-23 10:15 ---
Created an attachment (id=12671)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12671&action=view)
test.cpp
Testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29953
gcc dot gnu dot org
ReportedBy: nbkolchin at gmail dot com
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: sh-rtemself
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29953
--- Comment #3 from nbkolchin at gmail dot com 2006-03-12 20:14 ---
Created an attachment (id=11029)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11029&action=view)
test_cmd-4.1.0.ii
-save-temps output from gcc 4.1.0 and gcc 4.0.2 (they are different only in
version
--- Comment #2 from nbkolchin at gmail dot com 2006-03-12 20:13 ---
Created an attachment (id=11028)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11028&action=view)
test_cmd-3.4.5.ii
-save-temps output from gcc 3.4.5
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26658
--- Comment #1 from nbkolchin at gmail dot com 2006-03-12 20:12 ---
Created an attachment (id=11027)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11027&action=view)
test_cmd.cpp
testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26658
etween gcc 3.4.5 and 4.*
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: nbkolchin at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26658
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