[PATCH 31/55] include/qemu/int128.h: Add function to create Int128 from int64_t

[Peter Maydell]

int128_make64() creates an Int128 from an unsigned 64 bit value; add
a function int128_makes64() creating an Int128 from a signed 64 bit
value.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/qemu/int128.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/qemu/int128.h b/include/qemu/int128.h
index 52fc2384211..64500385e37 100644
--- a/include/qemu/int128.h
+++ b/include/qemu/int128.h
@@ -11,6 +11,11 @@ static inline Int128 int128_make64(uint64_t a)
     return a;
 }
 
+static inline Int128 int128_makes64(int64_t a)
+{
+    return a;
+}
+
 static inline Int128 int128_make128(uint64_t lo, uint64_t hi)
 {
     return (__uint128_t)hi << 64 | lo;
@@ -167,6 +172,11 @@ static inline Int128 int128_make64(uint64_t a)
     return (Int128) { a, 0 };
 }
 
+static inline Int128 int128_makes64(int64_t a)
+{
+    return (Int128) { a, a >> 63 };
+}
+
 static inline Int128 int128_make128(uint64_t lo, uint64_t hi)
 {
     return (Int128) { lo, hi };
-- 
2.20.1