From 6001794def1de775fa296fa60b8bf5630dc97736 Mon Sep 17 00:00:00 2001 From: Kazu Hirata Date: Tue, 1 Jul 2003 01:15:07 +0000 Subject: 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 --- gcc/doc/rtl.texi | 7 ------- 1 file changed, 7 deletions(-) (limited to 'gcc/doc/rtl.texi') 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 -- cgit v1.1