On Thu, Oct 25, 2012 at 5:25 PM, Manman Ren <[email protected]> wrote: > Author: mren > Date: Thu Oct 25 19:25:10 2012 > New Revision: 166743 > > URL: http://llvm.org/viewvc/llvm-project?rev=166743&view=rev > Log: > X86 SSE Intrinsics: update header for sqrt_ss, rsqrt_ss and rcp_ss. > > There intrinsics pass through the upper FP values from the input. > rdar://12558838 > > Modified: > cfe/trunk/lib/Headers/xmmintrin.h > cfe/trunk/test/CodeGen/sse-builtins.c > > Modified: cfe/trunk/lib/Headers/xmmintrin.h > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/xmmintrin.h?rev=166743&r1=166742&r2=166743&view=diff > ============================================================================== > --- cfe/trunk/lib/Headers/xmmintrin.h (original) > +++ cfe/trunk/lib/Headers/xmmintrin.h Thu Oct 25 19:25:10 2012 > @@ -95,7 +95,8 @@ > static __inline__ __m128 __attribute__((__always_inline__, __nodebug__)) > _mm_sqrt_ss(__m128 a) > { > - return __builtin_ia32_sqrtss(a); > + __m128 c = __builtin_ia32_sqrtss(a); > + return (__m128) { c[0], a[1], a[2], a[3] }; > }
What does exactly does __builtin_ia32_sqrtss return, if not the result of a sqrtss instruction? -Eli _______________________________________________ cfe-commits mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
