mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-17 18:00:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

(FIXED_R13): Default to 0.

Browse Source 
({FIXED,CALL_USED}_REGISTERS): Use FIXED_R13 for register 13.

From-SVN: r9863
This commit is contained in:
Richard Kenner 1995-06-01 18:33:59 -04:00
parent 06bb02f78e
commit a127c4e57b
1 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
gcc/config/rs6000/rs6000.h
View File

@ -453,10 +453,16 @@ extern char *rs6000_cpu_string;
On RS/6000, r1 is used for the stack and r2 is used as the TOC pointer.
cr5 is not supposed to be used. */
cr5 is not supposed to be used.
On System V implementations, r13 is fixed and not available for use. */
#ifndef FIXED_R13
#define FIXED_R13 0
#endif
#define FIXED_REGISTERS \
{0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
{0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, FIXED_R13, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
@ -470,7 +476,7 @@ extern char *rs6000_cpu_string;
Aside from that, you can include as many other registers as you like. */
#define CALL_USED_REGISTERS \
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, \
{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, FIXED_R13, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \