http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56056
Bug #: 56056
Summary: internal compiler error: in
get_builtin_code_for_version, at
config/i386/i386.c:28686
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: [email protected]
ReportedBy: [email protected]
cat countleadingzeros.cpp
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int foo (unsigned int x)
{
// The default version of foo.
return __builtin_clz(x);
}
// note, invalid attribute
__attribute__ ((target ("march=core-avx2")))
int foo (unsigned int x)
{
return __builtin_clz(x);
}
int main(void)
{
srand(time(NULL));
return foo(rand());
}
g++-4.8 countleadingzeros.cpp
countleadingzeros.cpp:12:24: error: attribute(target("march=core-avx2")) is
unknown
int foo (unsigned int x)
^
countleadingzeros.cpp: In function ‘int main()’:
countleadingzeros.cpp:21:22: error: attribute(target("march=core-avx2")) is
unknown
return foo(rand());
^
countleadingzeros.cpp:21:22: internal compiler error: in
get_builtin_code_for_version, at config/i386/i386.c:28686
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugs.opensuse.org/> for instructions.
rpm -q gcc48
gcc48-4.8.0_20130117-2.1.x86_64
