Commit 7e920754 by Kazu Hirata Committed by Kazu Hirata

* config/h8300/h8300.h (ELIMINABLE_REGS): Update a coment.

From-SVN: r73996
parent 8dae21e7
2003-11-27 Kazu Hirata <kazu@cs.umass.edu> 2003-11-27 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.h (ELIMINABLE_REGS): Update a coment.
2003-11-27 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.md: Give names to anonymous insns. * config/h8300/h8300.md: Give names to anonymous insns.
2003-11-27 Kazu Hirata <kazu@cs.umass.edu> 2003-11-27 Kazu Hirata <kazu@cs.umass.edu>
......
...@@ -570,10 +570,12 @@ enum reg_class { ...@@ -570,10 +570,12 @@ enum reg_class {
followed by "to". Eliminations of the same "from" register are listed followed by "to". Eliminations of the same "from" register are listed
in order of preference. in order of preference.
We have two registers that can be eliminated on the h8300. First, the We have three registers that can be eliminated on the h8300.
frame pointer register can often be eliminated in favor of the stack First, the frame pointer register can often be eliminated in favor
pointer register. Secondly, the argument pointer register can always be of the stack pointer register. Secondly, the argument pointer
eliminated; it is replaced with either the stack or frame pointer. */ register and the return address pointer register are always
eliminated; they are replaced with either the stack or frame
pointer. */
#define ELIMINABLE_REGS \ #define ELIMINABLE_REGS \
{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \
......
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