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Re: [PATCH, alpha]: Fix PR42113

On 11/22/2009 10:28 AM, Uros Bizjak wrote: 
- operands[5] = operands[0];
+ operands[5] = gen_lowpart (SImode, operands[0]);


operand[5] register is generated with:

+ operands[5] = gen_rtx_REG (SImode, REGNO (operands[0]));

We have assignment to (match_dup 5), and an assignment to a subreg is
probably not valid for a comparison operator we are splitting to.


The splitter is not constrained by reload_completed.
Generating a new reg for a pseudo isn't valid.

The code was correct as reviewed, but not now.


r~

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