From 2485126f2d78e5e03ee82d8328dc2e10f94eac1c Mon Sep 17 00:00:00 2001 From: "J\"orn Rennecke" Date: Thu, 27 May 1999 01:46:21 +0000 Subject: [PATCH] * loop.c (strength_reduce): Don't do biv->giv conversion on constants. From-SVN: r27194 --- gcc/ChangeLog | 4 ++++ gcc/loop.c | 2 ++ 2 files changed, 6 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2ea55b83aa6f..f6c768aa097b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +Thu May 27 02:40:48 1999 J"orn Rennecke + + * loop.c (strength_reduce): Don't do biv->giv conversion on constants. + Thu May 27 02:09:27 1999 Jeffrey A Law (law@cygnus.com) * reload.c (push_reload): Do not call remove_address_replacements diff --git a/gcc/loop.c b/gcc/loop.c index 7ee653218ca2..c7047f286f01 100644 --- a/gcc/loop.c +++ b/gcc/loop.c @@ -4193,6 +4193,8 @@ strength_reduce (scan_start, end, loop_top, insn_count, || ! next->always_executed || next->maybe_multiple || ! CONSTANT_P (next->add_val) + || v->mult_val != const1_rtx + || next->mult_val != const1_rtx || ! (biv_dead_after_loop || no_jumps_between_p (v->insn, next->insn))) { -- 2.47.2