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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-08-02 18:38:10 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-08-02 18:38:10 -0400 |
| commit | 3adde2a5c66dc7ff1509057a3dbddf112c56268f (patch) | |
| tree | dd15e88861f16b80f987cba310002f4ba5a8b7da /gcc | |
| parent | 2454c8d44981e0cafc82c6bf631700773e66d3b8 (diff) | |
| download | gcc-3adde2a5c66dc7ff1509057a3dbddf112c56268f.zip gcc-3adde2a5c66dc7ff1509057a3dbddf112c56268f.tar.gz gcc-3adde2a5c66dc7ff1509057a3dbddf112c56268f.tar.bz2 | |
(subst_prev_insn): Remove variable and all uses.
From-SVN: r7852
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/combine.c | 24 |
1 files changed, 6 insertions, 18 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 5358cd0..83f2cd4 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -170,11 +170,6 @@ static int last_call_cuid; static rtx subst_insn; -/* If nonzero, this is the insn that should be presumed to be - immediately in front of `subst_insn'. */ - -static rtx subst_prev_insn; - /* This is the lowest CUID that `subst' is currently dealing with. get_last_value will not return a value if the register was set at or after this CUID. If not for this mechanism, we could get confused if @@ -1240,7 +1235,6 @@ try_combine (i3, i2, i1) if (i1 && INSN_CUID (i1) > INSN_CUID (i2)) temp = i1, i1 = i2, i2 = temp; - subst_prev_insn = 0; added_links_insn = 0; /* First check for one important special-case that the code below will @@ -1356,9 +1350,8 @@ try_combine (i3, i2, i1) never appear in the insn stream so giving it the same INSN_UID as I2 will not cause a problem. */ - subst_prev_insn = i1 - = gen_rtx (INSN, VOIDmode, INSN_UID (i2), 0, i2, - XVECEXP (PATTERN (i2), 0, 1), -1, 0, 0); + i1 = gen_rtx (INSN, VOIDmode, INSN_UID (i2), 0, i2, + XVECEXP (PATTERN (i2), 0, 1), -1, 0, 0); SUBST (PATTERN (i2), XVECEXP (PATTERN (i2), 0, 0)); SUBST (XEXP (SET_SRC (PATTERN (i2)), 0), @@ -9826,15 +9819,10 @@ get_last_value (x) { rtx insn, set; - /* If there is an insn that is supposed to be immediately - in front of subst_insn, use it. */ - if (subst_prev_insn != 0) - insn = subst_prev_insn; - else - for (insn = prev_nonnote_insn (subst_insn); - insn && INSN_CUID (insn) >= subst_low_cuid; - insn = prev_nonnote_insn (insn)) - ; + for (insn = prev_nonnote_insn (subst_insn); + insn && INSN_CUID (insn) >= subst_low_cuid; + insn = prev_nonnote_insn (insn)) + ; if (insn && (set = single_set (insn)) != 0 |