include/exec/memop: Move get_alignment_bits from tcg.h

This function is specific to MemOp, not TCG in general.

Reviewed-by: Helge Deller <deller@gmx.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/exec/memop.h b/include/exec/memop.h
index f881fe7..97720a8 100644
--- a/include/exec/memop.h
+++ b/include/exec/memop.h
@@ -170,4 +170,27 @@ static inline bool memop_big_endian(MemOp op)
     return (op & MO_BSWAP) == MO_BE;
 }
 
+/**
+ * get_alignment_bits
+ * @memop: MemOp value
+ *
+ * Extract the alignment size from the memop.
+ */
+static inline unsigned get_alignment_bits(MemOp memop)
+{
+    unsigned a = memop & MO_AMASK;
+
+    if (a == MO_UNALN) {
+        /* No alignment required.  */
+        a = 0;
+    } else if (a == MO_ALIGN) {
+        /* A natural alignment requirement.  */
+        a = memop & MO_SIZE;
+    } else {
+        /* A specific alignment requirement.  */
+        a = a >> MO_ASHIFT;
+    }
+    return a;
+}
+
 #endif