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| author | Steven Bosscher <steven@gcc.gnu.org> | 2007-02-11 19:53:11 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2007-02-11 19:53:11 +0000 |
| commit | a31830a7cab48698868c117ba9100ec31069a91b (patch) | |
| tree | b8e43a1106916133f6889b90922be4c1b0c3b737 /gcc/gcse.c | |
| parent | 4c38b6d9425a007d8e27511703f9660c48962e6e (diff) | |
| download | gcc-a31830a7cab48698868c117ba9100ec31069a91b.zip gcc-a31830a7cab48698868c117ba9100ec31069a91b.tar.gz gcc-a31830a7cab48698868c117ba9100ec31069a91b.tar.bz2 | |
fwprop.c (try_fwprop_subst): Use set_unique_reg_note to add the REG_EQ* note.
* fwprop.c (try_fwprop_subst): Use set_unique_reg_note
to add the REG_EQ* note.
* see.c (see_merge_one_use_extension): Likewise.
* local-alloc.c (update_equiv_regs): Likewise. Also don't
turn REG_EQUAL notes into REG_EQUIV notes if the target
register may have more than one set.
* function.c (assign_parm_setup_reg): Use set_unique_reg_note.
* gcse.c (try_replace_reg): Likewise.
* alias.c (init_alias_analysis): Use find_reg_equal_equiv_note.
* calls.c (fixup_tail_calls): Likewise. Abort if there is
more than one REG_EQUIV note.
* reload1.c (gen_reload): Use set_unique_reg_note.
From-SVN: r121821
Diffstat (limited to 'gcc/gcse.c')
| -rw-r--r-- | gcc/gcse.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -2668,7 +2668,8 @@ try_replace_reg (rtx from, rtx to, rtx insn) /* If there is already a REG_EQUAL note, update the expression in it with our replacement. */ if (note != 0 && REG_NOTE_KIND (note) == REG_EQUAL) - XEXP (note, 0) = simplify_replace_rtx (XEXP (note, 0), from, to); + set_unique_reg_note (insn, REG_EQUAL, + simplify_replace_rtx (XEXP (note, 0), from, to)); if (!success && set && reg_mentioned_p (from, SET_SRC (set))) { |