From 7553271edd14ffe2cf3557700ebd641febd7acb1 Mon Sep 17 00:00:00 2001 From: Jeff Law Date: Tue, 26 May 2015 22:59:42 -0600 Subject: [PATCH] combine.c (find_split_point): Verify that the shift count is a constant when... * combine.c (find_split_point): Verify that the shift count is a constant when choosing (plus (ashift ...)) as a split point. From-SVN: r223736 --- gcc/ChangeLog | 3 +++ gcc/combine.c | 3 ++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f02ba5cc1c3..bf90c864206 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ 2015-05-26 Jeff Law + * combine.c (find_split_point): Verify that the shift count is a + constant when choosing (plus (ashift ...)) as a split point. + * tree-ssa-threadupdate.c: Replace 8 space sequences with tabs. No functional changes. diff --git a/gcc/combine.c b/gcc/combine.c index 73d141edc07..55a2e35ba48 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -5157,7 +5157,8 @@ find_split_point (rtx *loc, rtx_insn *insn, bool set_src) worthless to try this split. */ if (!set_src && (GET_CODE (XEXP (x, 0)) == MULT - || GET_CODE (XEXP (x, 0)) == ASHIFT)) + || (GET_CODE (XEXP (x, 0)) == ASHIFT + && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT))) return loc; default: -- 2.30.2