From d7a0bf41601ea933d5732c9604326678a80cfd66 Mon Sep 17 00:00:00 2001 From: marxin Date: Thu, 27 Jul 2017 07:31:19 +0000 Subject: Backport r249728 2017-07-27 Martin Liska Backport from mainline 2017-06-28 Martin Liska PR sanitizer/81224 * asan.c (instrument_derefs): Bail out inner references that are hard register variables. 2017-07-27 Martin Liska Backport from mainline 2017-06-28 Martin Liska PR sanitizer/81224 * gcc.dg/asan/pr81224.c: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@250603 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 9 +++++++++ gcc/asan.c | 3 +++ gcc/testsuite/ChangeLog | 8 ++++++++ gcc/testsuite/gcc.dg/asan/pr81224.c | 11 +++++++++++ 4 files changed, 31 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/asan/pr81224.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e5dfd8badba..f57ae1eac9a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2017-07-27 Martin Liska + + Backport from mainline + 2017-06-28 Martin Liska + + PR sanitizer/81224 + * asan.c (instrument_derefs): Bail out inner references + that are hard register variables. + 2017-07-26 Sebastian Huber Backport from mainline diff --git a/gcc/asan.c b/gcc/asan.c index bf564a46b28..31bc060eaf1 100644 --- a/gcc/asan.c +++ b/gcc/asan.c @@ -1877,6 +1877,9 @@ instrument_derefs (gimple_stmt_iterator *iter, tree t, || bitsize != size_in_bytes * BITS_PER_UNIT) return; + if (VAR_P (inner) && DECL_HARD_REGISTER (inner)) + return; + if (VAR_P (inner) && offset == NULL_TREE && bitpos >= 0 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 1ed2e14b15e..15dd9a66284 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,11 @@ +2017-07-27 Martin Liska + + Backport from mainline + 2017-06-28 Martin Liska + + PR sanitizer/81224 + * gcc.dg/asan/pr81224.c: New test. + 2017-07-26 Wilco Dijkstra PR target/79041 diff --git a/gcc/testsuite/gcc.dg/asan/pr81224.c b/gcc/testsuite/gcc.dg/asan/pr81224.c new file mode 100644 index 00000000000..def5cb69aec --- /dev/null +++ b/gcc/testsuite/gcc.dg/asan/pr81224.c @@ -0,0 +1,11 @@ +/* PR sanitizer/80659 */ +/* { dg-do compile { target { i?86-*-* x86_64-*-* } } } */ +/* { dg-additional-options "-msse2" } */ + +int a; +int +b () +{ + register __attribute__ ((__vector_size__ (4 * sizeof (int)))) int c asm("xmm0"); + return c[a]; +} -- cgit v1.2.1