https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78487
Stephan Beyer changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78487
--- Comment #5 from Stephan Beyer ---
It crashes on run-time.
I have absolutely no experience using extended asm syntax but I
guess g++ relies on the constraints for its optimization, so I
guess the constraints are wrong.
I will port the code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78487
--- Comment #4 from Andrew Pinski ---
Also I doubt this code is correct.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78487
--- Comment #3 from Andrew Pinski ---
Crashes at runtime or crashes inside GCC?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78487
--- Comment #2 from Stephan Beyer ---
The following problem is only reproducible on one machine.
I cannot reproduce it on any other machine.
When compiling the attached C++ source file with
g++ -O1 -fgcse, it crashes at the third cpuid call
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78487
--- Comment #1 from Andrew Pinski ---
What is the error message which you are getting?
Here is how GCC's cpuid.h header look like for cpuid:
#define __cpuid(level, a, b, c, d) \
__asm__ ("cpuid\n\t"
