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| author | Kazu Hirata <kazu@cs.umass.edu> | 2003-07-01 01:15:07 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2003-07-01 01:15:07 +0000 |
| commit | 6001794def1de775fa296fa60b8bf5630dc97736 (patch) | |
| tree | 5598774dfea689770b311deffdc2ccd8112d6016 /gcc/doc | |
| parent | 7d896ee96b213c6e77acd70f44bfb18d1a72c905 (diff) | |
| download | gcc-6001794def1de775fa296fa60b8bf5630dc97736.zip gcc-6001794def1de775fa296fa60b8bf5630dc97736.tar.gz gcc-6001794def1de775fa296fa60b8bf5630dc97736.tar.bz2 | |
combine.c (distribute_notes): Don't bother REG_WAS_0.
* combine.c (distribute_notes): Don't bother REG_WAS_0.
* cse.c (cse_insn): Likewise.
* final.c (final_scan_insn): Likewise.
* jump.c (duplicate_loop_exit_test): Likewise.
* rtl.c (reg_note_name): Remove REG_WAS_0.
* rtl.h (REG_WAS_0): Remove.
* unroll.c (final_reg_note_copy): Don't bother REG_WAS_0.
* config/avr/avr.c (output_movqi): Don't use reg_was_0.
(output_movhi): Likewise.
(output_movsisf): Likewise.
(reg_was_0): Remove.
* config/m68hc11/m68hc11.c (m68hc11_gen_movhi): Don't use
REG_WAS_0.
(m68hc11_gen_movqi): Likewise.
* config/vax/vax-protos.h: Remove the prototype for
reg_was_0_p.
* config/vax/vax.c (follows_p): Remove.
(reg_was_0_p): Likewise.
* config/vax/vax.md (movsi): Don't use reg_was_0_p.
(movhi): Likewise.
(movqi): Likewise.
* doc/rtl.texi (REG_WAS_0): Remove.
From-SVN: r68753
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/rtl.texi | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi index a0c6555..ca3c2de 100644 --- a/gcc/doc/rtl.texi +++ b/gcc/doc/rtl.texi @@ -3354,13 +3354,6 @@ destination register. Thus, compiler passes prior to register allocation need only check for @code{REG_EQUAL} notes and passes subsequent to register allocation need only check for @code{REG_EQUIV} notes. - -@findex REG_WAS_0 -@item REG_WAS_0 -The single output of this insn contained zero before this insn. -@var{op} is the insn that set it to zero. You can rely on this note if -it is present and @var{op} has not been deleted or turned into a @code{note}; -its absence implies nothing. @end table These notes describe linkages between insns. They occur in pairs: one |