[gcc r14-3891] aarch64: Tweak frame_size comment

[gcc r14-3891] aarch64: Tweak frame_size comment

[Richard Sandiford]

https://gcc.gnu.org/g:492b60670e69b0a7f11345b69a3c922c20d5d8c3

commit r14-3891-g492b60670e69b0a7f11345b69a3c922c20d5d8c3
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Tue Sep 12 16:05:08 2023 +0100

    aarch64: Tweak frame_size comment
    
    This patch fixes another case in which a value was described with
    an “upside-down” view.
    
    gcc/
            * config/aarch64/aarch64.h (aarch64_frame::frame_size): Tweak comment.

Diff:
---
 gcc/config/aarch64/aarch64.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
index 4a4de9c044e6..92965eced0a4 100644
--- a/gcc/config/aarch64/aarch64.h
+++ b/gcc/config/aarch64/aarch64.h
@@ -800,8 +800,8 @@ struct GTY (()) aarch64_frame
      STACK_BOUNDARY.  */
   poly_int64 bytes_above_hard_fp;
 
-  /* The size of the frame.  This value is the offset from base of the
-     frame (incomming SP) to the stack_pointer.  This value is always
+  /* The size of the frame, i.e. the number of bytes between the bottom
+     of the outgoing arguments and the incoming SP.  This value is always
      a multiple of STACK_BOUNDARY.  */
   poly_int64 frame_size;