From 1568d79b849057c16e3e4796b4c2b4335bb3a4ca Mon Sep 17 00:00:00 2001 From: David Edelsohn Date: Fri, 13 Jul 2001 15:05:51 +0000 Subject: [PATCH] * combine.c (try_combine): Ensure const_int pow2 is positive. From-SVN: r43983 --- gcc/ChangeLog | 4 ++++ gcc/combine.c | 1 + 2 files changed, 5 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c80f159db84..57ea335d5c0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2001-07-13 David Edelsohn + + * combine.c (try_combine): Ensure const_int pow2 is positive. + 2001-07-13 Hartmut Penner * config.gcc: Add configuration for s/390. diff --git a/gcc/combine.c b/gcc/combine.c index 6972d85fc09..2557d758367 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -2235,6 +2235,7 @@ try_combine (i3, i2, i1, new_direct_jump_p) appeared to be a memory address. This is a kludge. */ if (split_code == MULT && GET_CODE (XEXP (*split, 1)) == CONST_INT + && INTVAL (XEXP (*split, 1)) > 0 && (i = exact_log2 (INTVAL (XEXP (*split, 1)))) >= 0) { SUBST (*split, gen_rtx_ASHIFT (split_mode, -- 2.30.2