From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 129439 invoked by alias); 24 Apr 2015 11:21:44 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 129374 invoked by uid 55); 24 Apr 2015 11:21:40 -0000 From: "dave.anglin at bell dot net" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/65818] [6 Regression] libiberty/vprintf-support.c:41:1: ICE: in expand_i fn_va_arg_1, at tree-stdarg.c:1095 Date: Fri, 24 Apr 2015 11:21:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 6.0 X-Bugzilla-Keywords: build X-Bugzilla-Severity: normal X-Bugzilla-Who: dave.anglin at bell dot net X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: vries at gcc dot gnu.org X-Bugzilla-Target-Milestone: 6.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-04/txt/msg02103.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65818 --- Comment #9 from dave.anglin at bell dot net --- On 2015-04-22, at 12:40 PM, vries at gcc dot gnu.org wrote: > this patch is more conservative: > ... > diff --git a/gcc/gimplify.c b/gcc/gimplify.c > index 7786e16..e23f510 100644 > --- a/gcc/gimplify.c > +++ b/gcc/gimplify.c > @@ -9336,7 +9336,12 @@ gimplify_va_arg_internal (tree valist, tree type, > location_t loc, > else > gimplify_expr (&valist, pre_p, post_p, is_gimple_min_lval, fb_lvalue); > > - return targetm.gimplify_va_arg_expr (valist, type, pre_p, post_p); > + tree expr = targetm.gimplify_va_arg_expr (valist, type, pre_p, post_p); > + gcc_assert (TREE_CODE (expr) == MEM_REF); > + if (!is_gimple_mem_ref_addr (TREE_OPERAND (expr, 0))) > + gimplify_expr (&TREE_OPERAND (expr, 0), pre_p, post_p, > + is_gimple_mem_ref_addr, fb_rvalue); > + return expr; > } > > /* Gimplify __builtin_va_arg, aka VA_ARG_EXPR, which is not really a This patch has the following new failure: /test/gnu/gcc/gcc/gcc/testsuite/g++.dg/pr65802.C: In function 'void fn1()': /test/gnu/gcc/gcc/gcc/testsuite/g++.dg/pr65802.C:20:23: error: impossible constraint in 'asm' FAIL: g++.dg/pr65802.C -std=gnu++98 (test for excess errors) FAIL: g++.dg/pr65802.C -std=gnu++11 (test for excess errors) FAIL: g++.dg/pr65802.C -std=gnu++14 (test for excess errors) -- John David Anglin dave.anglin@bell.net