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RE: Runtime SEGV from gcc -O3 -march=native
- From: "Joseph Quinsey" <jquinsey at entrenet dot com>
- To: <cygwin at cygwin dot com>
- Date: Mon, 26 Jul 2010 12:16:03 -0400
- Subject: RE: Runtime SEGV from gcc -O3 -march=native
- References:
Again, just FYI, with a simpler example, and with -march=native replaced by
k8 or athlon64.
Source code:
int main(void) {
static int foo[4];
int i;
for (i = 0; i < 4; i++)
foo[i] = 0;
return 0;
}
Compile and run, using Cygwin's current gcc version 4.3.4:
gcc -O3 -march=athlon64 foobar.c
./a.exe
Segmentation fault (core dumped)
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