* pa.h (RETURN_IN_MEMORY): Improve comment.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45059 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index cea4bf3..520dfba 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2001-08-20  John David Anglin  <dave@hiauly1.hia.nrc.ca>
+
+       * pa.h (RETURN_IN_MEMORY): Improve comment.
+
 2001-08-20  Janis Johnson  <janis187@us.ibm.com>
 
        * gcc.misc-tests/gcov.exp: Add support for branch information.

diff --git a/gcc/config/pa/pa.h b/gcc/config/pa/pa.h
index a6580b8..4647167 100644 (file)
--- a/gcc/config/pa/pa.h
+++ b/gcc/config/pa/pa.h
@@ -508,8 +508,9 @@ extern struct rtx_def *hppa_pic_save_rtx PARAMS ((void));
 
 /* SOM ABI says that objects larger than 64 bits are returned in memory.
    PA64 ABI says that objects larger than 128 bits are returned in memory.
-   Note that int_size_in_bytes can return -1 if the size is variable
-   or larger than an integer.  */
+   Note, int_size_in_bytes can return -1 if the size of the object is
+   variable or larger than the maximum value that can be expressed as
+   a HOST_WIDE_INT.  */
 #define RETURN_IN_MEMORY(TYPE) \
   ((unsigned HOST_WIDE_INT) int_size_in_bytes (TYPE) > (TARGET_64BIT ? 16 : 8))