From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5638 invoked by alias); 16 Jul 2010 13:32:24 -0000 Received: (qmail 5214 invoked by uid 48); 16 Jul 2010 13:31:46 -0000 Date: Fri, 16 Jul 2010 13:32:00 -0000 Message-ID: <20100716133146.5213.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/44948] -msse/-mavx change ABI In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "hjl dot tools at gmail dot com" 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 X-SW-Source: 2010-07/txt/msg01702.txt.bz2 ------- Comment #18 from hjl dot tools at gmail dot com 2010-07-16 13:31 ------- The problem isn't new: [hjl@gnu-6 case3]$ cat x.c #include "x.h" void foo (long double x, struct A y, long double z) { int i; struct A a = { { 0, 1, 2, 3 } }; if (x != 8.0L || z != 8.0L) __builtin_abort (); if (__builtin_memcmp (&a, &y, sizeof (a))) __builtin_abort (); } [hjl@gnu-6 case3]$ cat x.h struct A { float V4SF __attribute__ ((vector_size (16))); }; void foo (long double, struct A, long double); [hjl@gnu-6 case3]$ cat main.c #include "x.h" int main (void) { struct A a = { { 0, 1, 2, 3 } }; foo (8.0L, a, 8.0L); return 0; } [hjl@gnu-6 case3]$ make CC=gcc gcc -m32 -g -O -msse2 -c -o x.o x.c gcc -m32 -g -O -mno-sse -c -o main.o main.c gcc -m32 -g -O -o x x.o main.o ./x make: *** [all] Aborted [hjl@gnu-6 case3]$ -- hjl dot tools at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|-mavx changes ABI |-msse/-mavx change ABI http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44948