From 75fefa91634deb3b00ee0b06cc07c35ceca7e491 Mon Sep 17 00:00:00 2001 From: Po-Chun Chang Date: Mon, 8 Jul 2013 09:05:38 +0000 Subject: re PR rtl-optimization/57786 (wasted work in distribute_notes) PR rtl-optimization/57786 * combine.c (distribute_notes) : Change all_used to bool and break out of the loop when it is set to false. From-SVN: r200776 --- gcc/combine.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'gcc/combine.c') diff --git a/gcc/combine.c b/gcc/combine.c index ca311ff..fc94c68 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -13580,14 +13580,17 @@ distribute_notes (rtx notes, rtx from_insn, rtx i3, rtx i2, rtx elim_i2, && hard_regno_nregs[regno][GET_MODE (XEXP (note, 0))] > 1) { unsigned int endregno = END_HARD_REGNO (XEXP (note, 0)); - int all_used = 1; + bool all_used = true; unsigned int i; for (i = regno; i < endregno; i++) if ((! refers_to_regno_p (i, i + 1, PATTERN (place), 0) && ! find_regno_fusage (place, USE, i)) || dead_or_set_regno_p (place, i)) - all_used = 0; + { + all_used = false; + break; + } if (! all_used) { @@ -13631,7 +13634,6 @@ distribute_notes (rtx notes, rtx from_insn, rtx i3, rtx i2, rtx elim_i2, break; } } - } place = 0; -- cgit v1.1