[Qemu-devel] [PATCH 01/14] target-tilegx: Use V1 in simd_helper.c

[Richard Henderson <rth@twiddle.net>]

This will tidy up lots of cases where we'll want
to replicate a byte across the 8 elements of the word.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 target-tilegx/simd_helper.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/target-tilegx/simd_helper.c b/target-tilegx/simd_helper.c
index b931929..774def4 100644
--- a/target-tilegx/simd_helper.c
+++ b/target-tilegx/simd_helper.c
@@ -23,12 +23,16 @@
 #include "exec/helper-proto.h"
 
 
+/* Broadcast a value to all elements of a vector.  */
+#define V1(X)      (((X) & 0xff) * 0x0101010101010101ull)
+
+
 uint64_t helper_v1shl(uint64_t a, uint64_t b)
 {
     uint64_t m;
 
     b &= 7;
-    m = 0x0101010101010101ULL * (0xff >> b);
+    m = V1(0xff >> b);
     return (a & m) << b;
 }
 
@@ -37,7 +41,7 @@ uint64_t helper_v1shru(uint64_t a, uint64_t b)
     uint64_t m;
 
     b &= 7;
-    m = 0x0101010101010101ULL * ((0xff << b) & 0xff);
+    m = V1(0xff << b);
     return (a & m) >> b;
 }
 
-- 
2.4.3