Fix src_inner in nvptx_output_mov_insn

---
 gcc/config/nvptx/nvptx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c
index 4c35c16..6951e27 100644
--- a/gcc/config/nvptx/nvptx.c
+++ b/gcc/config/nvptx/nvptx.c
@@ -2146,10 +2146,11 @@ const char *
 nvptx_output_mov_insn (rtx dst, rtx src)
 {
   machine_mode dst_mode = GET_MODE (dst);
+  machine_mode src_mode = GET_MODE (src);
   machine_mode dst_inner = (GET_CODE (dst) == SUBREG
 			    ? GET_MODE (XEXP (dst, 0)) : dst_mode);
   machine_mode src_inner = (GET_CODE (src) == SUBREG
-			    ? GET_MODE (XEXP (src, 0)) : dst_mode);
+			    ? GET_MODE (XEXP (src, 0)) : src_mode);
 
   rtx sym = src;
   if (GET_CODE (sym) == CONST)