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Re: [PATCH, rtl-optimization]: Fix PR rtl-optimization/33846, ICE in trunc_int_for_mode, at explow.c:55

From: Paolo Bonzini <bonzini at gnu dot org>
To: Eric Botcazou <ebotcazou at libertysurf dot fr>
Cc: Uros Bizjak <ubizjak at gmail dot com>, gcc-patches at gcc dot gnu dot org
Date: Mon, 22 Oct 2007 14:30:48 +0200
Subject: Re: [PATCH, rtl-optimization]: Fix PR rtl-optimization/33846, ICE in trunc_int_for_mode, at explow.c:55
References: <5787cf470710220352j1100c674l5dcb7e2ff4299cbb@mail.gmail.com> <200710221313.03099.ebotcazou@libertysurf.fr>

Eric Botcazou wrote:

The combiner creates:
(set (reg:V4SI 106)
    (ashiftrt:V4SI (xor:V4SI (reg:V4SI 102)
            (const_int -1 [0xffffffff]))
        (const_int 31 [0x1f])))
(xor:V4SI (reg:V4SI 102)
  (const_int -1 [0xffffffff]))
doesn't make much sense, we should have a CONST_VECTOR instead.

Yes, where is that bogus XOR created instead?

Paolo

Follow-Ups:
- Re: [PATCH, rtl-optimization]: Fix PR rtl-optimization/33846, ICE in trunc_int_for_mode, at explow.c:55
  - From: Uros Bizjak

References:
- Re: [PATCH, rtl-optimization]: Fix PR rtl-optimization/33846, ICE in trunc_int_for_mode, at explow.c:55
  - From: Uros Bizjak
- Re: [PATCH, rtl-optimization]: Fix PR rtl-optimization/33846, ICE in trunc_int_for_mode, at explow.c:55
  - From: Eric Botcazou

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