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lvzhengyang
riscv-gcc-1
Commits
7e920754
Commit
7e920754
authored
Nov 27, 2003
by
Kazu Hirata
Committed by
Kazu Hirata
Nov 27, 2003
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* config/h8300/h8300.h (ELIMINABLE_REGS): Update a coment.
From-SVN: r73996
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8dae21e7
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gcc/ChangeLog
View file @
7e920754
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>
...
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gcc/config/h8300/h8300.h
View file @
7e920754
...
@@ -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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