Commit 328de7da by Andreas Schwab Committed by Jeff Law

loop.c (strength_reduce): Don't call reg_used_between_p if the insn from BL2 is…

loop.c (strength_reduce): Don't call reg_used_between_p if the insn from BL2 is after the insn from BL.

        * loop.c (strength_reduce): Don't call reg_used_between_p if the
        insn from BL2 is after the insn from BL.

From-SVN: r29393
parent 51f53e01
Tue Sep 14 01:33:15 1999 Andreas Schwab <schwab@suse.de>
* loop.c (strength_reduce): Don't call reg_used_between_p if the
insn from BL2 is after the insn from BL.
Mon Sep 13 21:06:01 1999 Richard Henderson <rth@cygnus.com> Mon Sep 13 21:06:01 1999 Richard Henderson <rth@cygnus.com>
* recog.h (INSN_OUTPUT_FORMAT_*): New. * recog.h (INSN_OUTPUT_FORMAT_*): New.
......
...@@ -4056,11 +4056,11 @@ strength_reduce (scan_start, end, loop_top, insn_count, ...@@ -4056,11 +4056,11 @@ strength_reduce (scan_start, end, loop_top, insn_count,
in-between when biv_total_increment returns nonzero both times in-between when biv_total_increment returns nonzero both times
but we test it here in case some day some real cfg analysis but we test it here in case some day some real cfg analysis
gets used to set always_computable. */ gets used to set always_computable. */
&& ((loop_insn_first_p (bl2->biv->insn, bl->biv->insn) && (loop_insn_first_p (bl2->biv->insn, bl->biv->insn)
&& no_labels_between_p (bl2->biv->insn, bl->biv->insn)) ? no_labels_between_p (bl2->biv->insn, bl->biv->insn)
|| (! reg_used_between_p (bl->biv->src_reg, bl->biv->insn, : (! reg_used_between_p (bl->biv->src_reg, bl->biv->insn,
bl2->biv->insn) bl2->biv->insn)
&& no_jumps_between_p (bl->biv->insn, bl2->biv->insn))) && no_jumps_between_p (bl->biv->insn, bl2->biv->insn)))
&& validate_change (bl->biv->insn, && validate_change (bl->biv->insn,
&SET_SRC (single_set (bl->biv->insn)), &SET_SRC (single_set (bl->biv->insn)),
copy_rtx (src), 0)) copy_rtx (src), 0))
......
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