From: Søren Sandmann Pedersen <s...@redhat.com>
When not optimizing, write _mm_shuffle_pi16() as a statement
expression with inline assembly. That way we avoid
__builtin_ia32_pshufw(), which is only available when compiling with
-msse, while still allowing the non-optimizing gcc to understand that
the second argument is a compile time constant.
Cc: matts...@gmail.com
---
pixman/pixman-mmx.c | 13 +++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/pixman/pixman-mmx.c b/pixman/pixman-mmx.c
index 5441d6b..74a5e87 100644
--- a/pixman/pixman-mmx.c
+++ b/pixman/pixman-mmx.c
@@ -105,8 +105,17 @@ _mm_shuffle_pi16 (__m64 __A, int8_t const __N)
return ret;
}
# else
-# define _mm_shuffle_pi16(A, N) \
- ((__m64) __builtin_ia32_pshufw ((__v4hi)(__m64)(A), (int)(N)))
+# define _mm_shuffle_pi16(A, N) \
+ ({ \
+ __m64 ret; \
+ \
+ asm ("pshufw %2, %1, %0\n\t" \
+ : "=y" (ret) \
+ : "y" (A), "K" ((const int8_t)N) \
+ ); \
+ \
+ ret; \
+ })
# endif
# endif
#endif
--
1.7.4
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