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authorjason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>2000-03-24 02:14:39 +0000
committerjason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>2000-03-24 02:14:39 +0000
commit043c3f9154abe91164ee58aef8efcdd59d29d369 (patch)
tree5589a6f6a9eff5f5cd0e651a9901f574061fab31 /gcc
parenta1da6fa95d44e484af604552c552843d316b4c16 (diff)
downloadgcc-043c3f9154abe91164ee58aef8efcdd59d29d369.tar.gz
tweak comments
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32721 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
-rw-r--r--gcc/config/rs6000/rs6000.h14
1 files changed, 9 insertions, 5 deletions
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index dc872f17ebf..9b4ed256a86 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -649,6 +649,10 @@ extern int rs6000_debug_arg; /* debug argument handling */
#define FIRST_PSEUDO_REGISTER 77
+/* This must not decrease, for backwards compatibility. If
+ FIRST_PSEUDO_REGISTER increases, this should as well. */
+#define DWARF_FRAME_REGISTERS 77
+
/* 1 for registers that have pervasive standard uses
and are not available for the register allocator.
@@ -1262,6 +1266,11 @@ extern int rs6000_sysv_varargs_p;
area. */
#define FIRST_PARM_OFFSET(FNDECL) RS6000_SAVE_AREA
+/* Offset from the argument pointer register value to the top of
+ stack. This is different from FIRST_PARM_OFFSET because of the
+ register save area. */
+#define ARG_POINTER_CFA_OFFSET(FNDECL) 0
+
/* Define this if stack space is still allocated for a parameter passed
in a register. The value is the number of bytes allocated to this
area. */
@@ -2672,11 +2681,6 @@ do { \
#define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, LINK_REGISTER_REGNUM)
#define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (LINK_REGISTER_REGNUM)
-/* These values are set like this for backwards compatibility,
- and can't be changed no matter how wrong they are :-(. */
-#define DWARF_FRAME_REGISTERS 77
-#define ARG_POINTER_CFA_OFFSET(FNDECL) 0
-
/* Define results of standard character escape sequences. */
#define TARGET_BELL 007
#define TARGET_BS 010