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Re: C PATCH for c/71853 (ICE with uninitialized memory on invalid)

From: Jeff Law <law at redhat dot com>
To: Marek Polacek <polacek at redhat dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, Joseph Myers <joseph at codesourcery dot com>
Date: Fri, 29 Jul 2016 09:36:54 -0600
Subject: Re: C PATCH for c/71853 (ICE with uninitialized memory on invalid)
Authentication-results: sourceware.org; auth=none
References: <20160727215056.GB7007@redhat.com>

On 07/27/2016 03:50 PM, Marek Polacek wrote:

This testcase was breaking because we were using uninitialized memory
coming from c_expr in c_parser_switch_statement.  There, in case we hadn't
seen '(' after switch, we called c_finish_case with uninitialized CE.
Fixed thus.

Bootstrapped/regtested on x86_64-linux, ok for trunk?

2016-07-27  Marek Polacek  <polacek@redhat.com>

	PR c/71853
	* c-parser.c (c_parser_switch_statement): Initialize ce.original_type
	to error node for invalid code.

	* gcc.dg/noncompile/pr71853.c: New test.

OK.
jeff

References:
- C PATCH for c/71853 (ICE with uninitialized memory on invalid)
  - From: Marek Polacek

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