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Re: porting problem again: ICE in add_clobbers
On Tue, Sep 18, 2007 at 12:54:17PM +0200, Tomas Svensson wrote:
>
> I have looked at it in gdb and it fails on reaching the
> gcc_unreachable() in add_clobbers, which happens because add_clobbers
> is called (at combine.c:9576) with an insn_code_number that it does
> not recognize.
Odd, since add_clobbers() is only called with an insn_code_number that it
knows. What is the insn pattern (use "call debug_rtx (pattern)" in gdb) and
insn_code_number?
> Everything works fine when optimization is turned off. What is it that
> gcc does differently when optimizing, that might cause this to happen?
Combine only runs when optimization is enabled.
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Rask Ingemann Lambertsen
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