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| author | Eric Botcazou <ebotcazou@adacore.com> | 2017-05-17 09:12:33 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2017-05-17 09:12:33 +0000 |
| commit | d2d61a746904c8e530c1177232d8b49b92b25131 (patch) | |
| tree | e378f4420d6935e7b7fa6fde5a3ebca5d7d03bf0 /gcc/compare-elim.c | |
| parent | 1a81741814618bc19d13de0b9e59c0324114cc86 (diff) | |
| download | gcc-d2d61a746904c8e530c1177232d8b49b92b25131.zip gcc-d2d61a746904c8e530c1177232d8b49b92b25131.tar.gz gcc-d2d61a746904c8e530c1177232d8b49b92b25131.tar.bz2 | |
compare-elim.c (equivalent_reg_at_start): Adjust outdated comment.
* compare-elim.c (equivalent_reg_at_start): Adjust outdated comment.
* config/visium/visium.c (single_set_and_flags): Likewise.
* config/visium/visium.md (Substitutions): Likewise.
From-SVN: r248141
Diffstat (limited to 'gcc/compare-elim.c')
| -rw-r--r-- | gcc/compare-elim.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/gcc/compare-elim.c b/gcc/compare-elim.c index b5ce993..d357d16 100644 --- a/gcc/compare-elim.c +++ b/gcc/compare-elim.c @@ -541,29 +541,29 @@ equivalent_reg_at_start (rtx reg, rtx_insn *end, rtx_insn *start) df_ref def; /* Note that the BB_HEAD is always either a note or a label, but in - any case it means that IN_A is defined outside the block. */ + any case it means that REG is defined outside the block. */ if (insn == bb_head) return NULL_RTX; if (NOTE_P (insn) || DEBUG_INSN_P (insn)) continue; - /* Find a possible def of IN_A in INSN. */ + /* Find a possible def of REG in INSN. */ FOR_EACH_INSN_DEF (def, insn) if (DF_REF_REGNO (def) == REGNO (reg)) break; - /* No definitions of IN_A; continue searching. */ + /* No definitions of REG; continue searching. */ if (def == NULL) continue; - /* Bail if this is not a totally normal set of IN_A. */ + /* Bail if this is not a totally normal set of REG. */ if (DF_REF_IS_ARTIFICIAL (def)) return NULL_RTX; if (DF_REF_FLAGS (def) & abnormal_flags) return NULL_RTX; /* We've found an insn between the compare and the clobber that sets - IN_A. Given that pass_cprop_hardreg has not yet run, we still find + REG. Given that pass_cprop_hardreg has not yet run, we still find situations in which we can usefully look through a copy insn. */ rtx x = single_set (insn); if (x == NULL_RTX) |