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Re: h8300-elf build error with gcc-3.5-20040704

From: Jim Wilson <wilson at specifixinc dot com>
To: Nitin Shah <NitinS2 at KPITCummins dot com>
Cc: gcc-bugs at gcc dot gnu dot org
Date: Wed, 14 Jul 2004 19:48:36 -0700
Subject: Re: h8300-elf build error with gcc-3.5-20040704
References: <4A1BE23A7B777442B60F4B4916AE0F1302244128@sohm.kpit.com>

Nitin Shah wrote:

insn 510 126 443 7 (set (mem:SI (pre_dec:HI (reg/f:HI 7 sp)) [0 S4 A32])
        (reg:SI 7 sp)) -1 (nil)
    (nil))

You chopped off some of the info we need, such as the full error message, and the compiler command that generated it.

You can either try to debug this yourself, or submit a bugzilla bug report, and hope that someone looks at it.

Try adding the -da option to the compiler command, and figure out where the bad instruction is coming from. Then debug the optimization pass that created it to figure out why it was created. Then figure out how to fix it.

You probably also need to figure out why the insn doesn't match a pattern in the md file. -- Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

References:
- h8300-elf build error with gcc-3.5-20040704
  - From: Nitin Shah

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