http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50369
Bug #: 50369
Summary: Support 256bit vector permutation
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
i386.c has:
/* AVX does not support 32-byte integer vector operations,
thus the longest vector we are faced with is V16QImode. */
#define MAX_VECT_LEN 16
struct expand_vec_perm_d
{
rtx target, op0, op1;
unsigned char perm[MAX_VECT_LEN];
enum machine_mode vmode;
unsigned char nelt;
bool testing_p;
};
MAX_VECT_LEN should be extended to 32 for AVX2.
