diff options
| author | peter <peter@FreeBSD.org> | 2002-09-07 07:02:12 +0000 |
|---|---|---|
| committer | peter <peter@FreeBSD.org> | 2002-09-07 07:02:12 +0000 |
| commit | fa099d15482059c0921ce482fbb415f934e4e6e6 (patch) | |
| tree | 6ab1b3fd13e6c8648b360795136c4804401d0fb6 /sys/i386/isa/npx.c | |
| parent | 8a9b28b5fbae4dd4a937d50df8923454f2c46e16 (diff) | |
| download | FreeBSD-src-fa099d15482059c0921ce482fbb415f934e4e6e6.zip FreeBSD-src-fa099d15482059c0921ce482fbb415f934e4e6e6.tar.gz | |
Automatically enable CPU_ENABLE_SSE (detect and enable SSE instructions)
if compiling with I686_CPU as a target. CPU_DISABLE_SSE will prevent
this from happening and will guarantee the code is not compiled in.
I am still not happy with this, but gcc is now generating code that uses
these instructions if you set CPUTYPE to p3/p4 or athlon-4/mp/xp or higher.
Diffstat (limited to 'sys/i386/isa/npx.c')
| -rw-r--r-- | sys/i386/isa/npx.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/i386/isa/npx.c b/sys/i386/isa/npx.c index 22a0282..956d2f2 100644 --- a/sys/i386/isa/npx.c +++ b/sys/i386/isa/npx.c @@ -88,6 +88,13 @@ #include <isa/isavar.h> #endif +#if !defined(CPU_ENABLE_SSE) && defined(I686_CPU) +#define CPU_ENABLE_SSE +#endif +#if defined(CPU_DISABLE_SSE) +#undef CPU_ENABLE_SSE +#endif + /* * 387 and 287 Numeric Coprocessor Extension (NPX) Driver. */ |
