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driver-i386.c (host_detect_local_cpu): Check extended family and model for Intel processors.

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2009-05-20  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/driver-i386.c (host_detect_local_cpu): Check
	extended family and model for Intel processors.  Support Intel
	Atom.

From-SVN: r147736
This commit is contained in:
H.J. Lu 2009-05-20 13:32:14 +00:00 • committed by H.J. Lu
parent dbb6088f89
commit 37c5043589
2 changed files with 22 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2009-05-20 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/driver-i386.c (host_detect_local_cpu): Check
extended family and model for Intel processors. Support Intel
Atom.
2009-05-20 Olivier Hainque <hainque@adacore.com>
* gstab.h (stab_code_type): Define, to be used instead of the

19
gcc/config/i386/driver-i386.c
View file

@ -395,9 +395,22 @@ const char *host_detect_local_cpu (int argc, const char **argv)
__cpuid (1, eax, ebx, ecx, edx);
/* We don't care for extended family. */
model = (eax >> 4) & 0x0f;
family = (eax >> 8) & 0x0f;
if (vendor == SIG_INTEL)
{
unsigned int extended_model, extended_family;
extended_model = (eax >> 12) & 0xf0;
extended_family = (eax >> 20) & 0xff;
if (family == 0x0f)
{
family += extended_family;
model += extended_model;
}
else if (family == 0x06)
model += extended_model;
}
has_sse3 = ecx & bit_SSE3;
has_ssse3 = ecx & bit_SSSE3;
@ -496,8 +509,8 @@ const char *host_detect_local_cpu (int argc, const char **argv)
break;
case PROCESSOR_PENTIUMPRO:
if (has_longmode)
/* It is Core 2 Duo. */
cpu = "core2";
/* It is Core 2 or Atom. */
cpu = (model == 28) ? "atom" : "core2";
else if (arch)
{
if (has_sse3)