From 03e0ad94a21d03ed7b434d3451a53b1d8be4a061 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Mon, 14 Jul 2014 09:31:57 +0200 Subject: [PATCH] re PR target/61656 (Undefined behavior in classify_argument) PR target/61656 * config/i386/i386.c (classify_argument): Don't merge classes above number of words. From-SVN: r212509 --- gcc/ChangeLog | 6 ++++++ gcc/config/i386/i386.c | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6017987531ab..673eadfc4717 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-07-14 Jakub Jelinek + + PR target/61656 + * config/i386/i386.c (classify_argument): Don't merge classes above + number of words. + 2014-07-13 Jan Hubicka * cgraph.h (symtab_node): Add nonzero_address. diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index e13f4058d407..542945f1176a 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -6581,7 +6581,7 @@ classify_argument (enum machine_mode mode, const_tree type, bit_offset); if (!num) return 0; - for (i = 0; i < num; i++) + for (i = 0; i < num && i < words; i++) classes[i] = merge_classes (subclasses[i], classes[i]); } } -- 2.47.3