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[tuples] Convert SSA rewriting (part 2)

From: "Diego Novillo" <dnovillo at google dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Tue, 15 Jan 2008 13:41:30 -0800
Subject: [tuples] Convert SSA rewriting (part 2)

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.
- We were not considering GIMPLE_ASSIGN as having memory operands.

Tested on x86.

Attachment: 20080115-ssa.diff.txt
Description: Text document

Follow-Ups:
- Re: [tuples] Convert SSA rewriting (part 2)
  - From: Richard Guenther

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