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Re: [tuples] Convert SSA rewriting (part 2)
- From: "Richard Guenther" <richard dot guenther at gmail dot com>
- To: "Diego Novillo" <dnovillo at google dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 15 Jan 2008 23:28:05 +0100
- Subject: Re: [tuples] Convert SSA rewriting (part 2)
- References: <b798aad50801151341q28821c8fr8ef0ca239a5ee69a@mail.gmail.com>
On Jan 15, 2008 10:41 PM, Diego Novillo <dnovillo@google.com> wrote:
> This patch enables the initial SSA rewriting pass. The major fixes are:
>
> - tree-ssa-live.c has been converted to tuples.
> - The GTY markers on the operand data structures were wrong, so the
> garbage collector was trying to handle them
> - When statements are removed we were not freeing the operand
> structures. This bug is also present in mainline, but the memory
> leakage shouldn't be too bad, so I'll wait for 4.4 to move this in.
Not too bad? Remember we have these testcases with unreasonable
amount of (virtual) operands.
Richard.
> - We were not considering GIMPLE_ASSIGN as having memory operands.
>
> Tested on x86.
>