https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107932
--- Comment #2 from Berni ---
added test case:
g++ -o test.exe -Os main.cpp weak.cpp
./test.exe
'S'
'S'
'S'
here the result is as expected!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107932
--- Comment #1 from Berni ---
potentially related to bug 107907
++
Assignee: unassigned at gcc dot gnu.org
Reporter: bseifert at gmx dot at
Target Milestone: ---
given the following files:
def.hpp
---
#include
struct A
{
static const char* C1;
static const char C2[];
static const char C3[];
static std::string get_C1
++
Assignee: unassigned at gcc dot gnu.org
Reporter: bseifert at gmx dot at
Target Milestone: ---
given the following files:
def.hpp
---
struct A
{
static const int C;
static int get_C();
};
---
weak.cpp
---
#include "def.hpp"
cons
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90706
--- Comment #8 from Berni ---
I just compiled AVR gcc 9.3.0 and tested the code again. Still no improvement!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90706
--- Comment #3 from Berni ---
There is no improvement with gcc 9.2.0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90706
--- Comment #2 from Berni ---
(In reply to Georg-Johann Lay from comment #1)
> (In reply to Berni from comment #0)
> > pushing r0 does not make sense at all since it is by definition a temporary
> > register that can freely be modified. Maybe
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: bseifert at gmx dot at
Target Milestone: ---
given the following function:
unsigned char check(float x)
{
return (0.0 < x);
}
in avr-gcc 8.3.0 the following code is genera
++
Assignee: unassigned at gcc dot gnu.org
Reporter: bseifert at gmx dot at
Target Milestone: ---
The following was tested on avr-gcc, but this behavior should not be different
on other platforms.
Consider the following array declaration with initialization of all elements to
0:
int main
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84087
Berni changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: bseifert at gmx dot at
Target Milestone: ---
Created attachment 43267
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43267=edit
does not compile as expected
>From C++14, string::assign can be called wi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #12 from Berni ---
Thanks, Georg-Johann, I can confirm that
avr-g++ -S -Os -mmcu=atmega128 main.cpp
performs a 16-bit comparison but
avr-gcc -S -Os -mmcu=atmega128 main.c
works as expected (8-bit comparison)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #9 from Berni ---
GCC 7-20160821 works as expected!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #8 from Berni ---
With GCC 5.4.0 comparison is done between two 8-bit registers r24 and r25, as
expected.
With GCC 6.2.0 additionally registers r19 and r25 are loaded with 0 and 16-bit
comparison between register pairs (r18, r19)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #6 from Berni ---
Created attachment 39493
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39493=edit
GCC 6.2.0 build output
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #7 from Berni ---
Created attachment 39494
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39494=edit
GCC 6.2.0 listing
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #5 from Berni ---
Created attachment 39492
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39492=edit
GCC 5.4.0 listing
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #4 from Berni ---
Created attachment 39491
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39491=edit
GCC 5.4.0 build output
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #3 from Berni ---
Created attachment 39490
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39490=edit
main.cpp
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77353
--- Comment #1 from Berni ---
another example:
if (PINA < PINC)
{
PORTB = 0;
}
compiles to:
6c2: 20 b1 in r18, 0x00 ; 0
6c4: 86 b1 in r24, 0x06 ; 6
6c6: 30 e0 ldi r19, 0x00
Assignee: unassigned at gcc dot gnu.org
Reporter: bseifert at gmx dot at
Target Milestone: ---
Consider the following code:
if (PINA < static_cast(32))
{
PORTB = 0;
}
It compiles to - as expected:
6dc: 80 b1 in r24, 0x00 ; 0
6de: 80
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71053
Berni changed:
What|Removed |Added
CC||bseifert at gmx dot at
--- Comment #3 from
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