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Re: What is wrong with my SSA (ICE in SSA name coalescing)?
- From: Jakub Jelinek <jakub at redhat dot com>
- To: Ilya Enkovich <enkovich dot gnu at gmail dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Fri, 17 May 2013 14:36:03 +0200
- Subject: Re: What is wrong with my SSA (ICE in SSA name coalescing)?
- References: <CAMbmDYYko9PTAmMovjgt2Pk5JrVZFteGu4QdiGn3_Uq44_G8Ng at mail dot gmail dot com>
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Fri, May 17, 2013 at 04:03:25PM +0400, Ilya Enkovich wrote:
> Here is GIMPLE after my instrumentation. Instrumentation
> statements/expressions are marked with +++
>
> test ()
> {
> +++<unnamed type> __tmp.0;+++
> char * name;
> int D.1761;
> int _5;
>
> <bb 10>:
> +++__tmp.0_9 = __length_1;+++
> +++__tmp.0_8(ab) = __zero_length;+++
I think this is wrong, you are using the same underlying
var __tmp.0 for two values concurrently when at least one of them
is (ab). If _9 is not (ab), why don't you use just _9 (anon SSA_NAME),
or a different underlying decl for that?
Jakub