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Re: Improve jump threading 4 of N

From: Jeff Law <law at redhat dot com>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Tue, 03 May 2011 07:17:04 -0600
Subject: Re: Improve jump threading 4 of N
References: <4DBEE4E2.8030402@redhat.com> <BANLkTinsGh_3M3xwx_iOYKasEime87L7EQ@mail.gmail.com>

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On 05/02/11 15:18, Richard Guenther wrote:

> 
>> For (edge *)xmalloc (sizeof (edge) * 1) use XNEWVEC and friends.
>> I wonder if it makes sense to use a VEC instead (will the vector
>> be of variable size?).  Maybe wrap accesses to e->aux with
>> a macro or some inline functions.
> 
>> Ok with the allocation change.
Attached is the actual patch I checked in.  I found a minor goof in the
stats reporting which I fixed, in addition to the stuff Richard pointed out.

Bootstrapped and regression tested on x86_64-unknown-linux-gnu

Jeff
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References:
- Improve jump threading 4 of N
  - From: Jeff Law
- Re: Improve jump threading 4 of N
  - From: Richard Guenther

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