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Re: constexpr vector indexing

From: Marc Glisse <marc dot glisse at inria dot fr>
To: Gabriel Dos Reis <gdr at integrable-solutions dot net>
Cc: gcc-patches at gcc dot gnu dot org, jason at redhat dot com
Date: Sun, 7 Jul 2013 23:59:38 +0200 (CEST)
Subject: Re: constexpr vector indexing
References: <alpine dot DEB dot 2 dot 02 dot 1307071743370 dot 12808 at stedding dot saclay dot inria dot fr> <CAAiZkiCJHOhPvfkfWEfz=3Kc1nnERat74DbVX9fn7zZLSLFQAA at mail dot gmail dot com>

On Sun, 7 Jul 2013, Gabriel Dos Reis wrote:

On Sun, Jul 7, 2013 at 10:54 AM, Marc Glisse <marc.glisse@inria.fr> wrote:

Hello,

it turns out there wasn't much missing here. I got side-tracked because
fold_unary_loc doesn't call fold_indirect_ref_1, and fold_indirect_ref_1 has
a too strict comparison type == TREE_TYPE (optype) (should compare
TYPE_MAIN_VARIANT instead?),


or same_type_p.

I thought of that, but it is a front-end interface, not accessible fromfold-const.

but none of that was necessary so I'll leave it
for another time. The new testcase is not that useful, but I didn't remember
there was already one with dg-bogus.


Bootstrap+testsuite on x86_64-unknown-linux-gnu.

2013-07-07  Marc Glisse  <marc.glisse@inria.fr>

        PR c++/53094
gcc/cp/
        * semantics.c (cxx_eval_bit_field_ref): Handle VECTOR_CST.

OK.


Thanks.

--
Marc Glisse

References:
- constexpr vector indexing
  - From: Marc Glisse
- Re: constexpr vector indexing
  - From: Gabriel Dos Reis

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