r201920 - [_mm_prefetch] Returning previously deleted comment.
whunt at google.com
Fri Feb 21 16:47:24 PST 2014
Date: Fri Feb 21 18:47:24 2014
New Revision: 201920
[_mm_prefetch] Returning previously deleted comment.
No functional change. It's unclear if the word FIXME is relevant given
that the macro behaves as intended.
--- cfe/trunk/lib/Headers/xmmintrin.h (original)
+++ cfe/trunk/lib/Headers/xmmintrin.h Fri Feb 21 18:47:24 2014
@@ -673,6 +673,9 @@ _mm_storer_ps(float *__p, __m128 __a)
#define _MM_HINT_NTA 0
+/* FIXME: We have to #define this because "sel" must be a constant integer, and
+ Sema doesn't do any form of constant propagation yet. */
#define _mm_prefetch(a, sel) (__builtin_prefetch((void *)(a), 0, (sel)))
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