[PATCH] Do not handled volatile arguments (PR sanitizer/82484).

[Martin Liška]

Hi.

This is a bit forgotten patch. It handles volatile arguments, which should
not be attempted copied into a function local variable.

Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.

Ready to be installed?
Martin

gcc/ChangeLog:

2017-10-11  Martin Liska  <mliska@suse.cz>

	PR sanitizer/82484
	* sanopt.c (sanitize_rewrite_addressable_params): Do not handle
	volatile arguments.

gcc/testsuite/ChangeLog:

2017-10-11  Martin Liska  <mliska@suse.cz>

	PR sanitizer/82484
	* gcc.dg/asan/pr82484.c: New test.
---
 gcc/sanopt.c                        | 4 +++-
 gcc/testsuite/gcc.dg/asan/pr82484.c | 5 +++++
 2 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.dg/asan/pr82484.c


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