- smulbb is only on ARMv5TE and above (p316, ARM Architecture Reference Manual)
- an empty clobber list causes a compiler error with my compiler, gcc-4.3.2
Patch by Joel Stanley <joel@jms.id.au>
Review URL: http://codereview.appspot.com/96165
git-svn-id: http://skia.googlecode.com/svn/trunk@329
2bbb7eff-a529-9590-31e7-
b0007b416f81
With this requirement, we can generate faster instructions on some
architectures.
*/
-#if defined(__arm__) && !defined(__thumb__) && !defined(__ARM_ARCH_4__)
+#if defined(__arm__) \
+ && !defined(__thumb__) \
+ && !defined(__ARM_ARCH_4__) \
+ && !defined(__ARM_ARCH_5T__)
static inline int32_t SkMulS16(S16CPU x, S16CPU y) {
SkASSERT((int16_t)x == x);
SkASSERT((int16_t)y == y);
asm("smulbb %0, %1, %2 \n"
: "=r"(product)
: "r"(x), "r"(y)
- :
);
return product;
}