[Bug rtl-optimization/29329] [4.1 regression] internal consistency failure
------- Comment #8 from ebotcazou at gcc dot gnu dot org 2007-01-21 22:34 -------
Subject: Bug 29329
Date: Sun Jan 21 22:33:52 2007
New Revision: 121038
* combine.c (replaced_rhs_insn): Rename to i2mod.
(replaced_rhs_value): Rename to i2mod_new_rhs.
(i2mod_old_rhs): New global variable.
(combine_instructions): Adjust for above change. Save a copy of
the old RHS into i2mod_old_rhs when the contents of a REG_EQUAL
note are substituted in the second instruction.
(distribute_notes) <REG_DEAD>: Adjust for above change. Do not
ditch the note if it pertains to the second eliminated register
and this register is mentioned in i2mod_old_rhs.
2006-09-12 Eric Botcazou <email@example.com>
* combine.c (distribute_notes) <REG_DEAD>: Do not consider SETs past
the insn to which the note was originally attached.
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