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Re: [google/main, google/gcc-4_7] Fix segfault in linemap lookup

From: Diego Novillo <dnovillo at google dot com>
To: Cary Coutant <ccoutant at google dot com>
Cc: aaw at google dot com, gcc-patches at gcc dot gnu dot org
Date: Fri, 10 Aug 2012 08:38:25 -0400
Subject: Re: [google/main, google/gcc-4_7] Fix segfault in linemap lookup
References: <20120809220443.60C6DE0822@ccoutant.mtv.corp.google.com>

On 12-08-09 18:04 , Cary Coutant wrote:

This patch is for the google/main and google/gcc-4_7 branches.
New code in GCC 4.7 is calling linemap_lookup with a location_t that
may still represent a location-with-discriminator.  Before using a
location_t value to lookup the line number, it needs to be mapped to
a real location_t value.
Tested with make check-gcc and validate-failures.py.

OK for google/main and google/gcc-4_7?

2012-08-09 Cary Coutant <ccoutant@google.com>
gcc/
	* tree-diagnostic.c (maybe_unwind_expanded_macro_loc): Check for
	discriminator.
	* diagnostic.c (diagnostic_report_current_module): Likewise.

OK.

Diego.

References:
- [google/main, google/gcc-4_7] Fix segfault in linemap lookup
  - From: Cary Coutant

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