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When is the hardware related register is allocated?
- From: Feng LI <nemokingdom at gmail dot com>
- To: GCC <gcc at gcc dot gnu dot org>
- Date: Sun, 13 Nov 2011 22:45:23 +0100
- Subject: When is the hardware related register is allocated?
Hi,
I'm working on a gcc backend, we need to use the information of the
allocated hardware register to generate the code from builtin
functions. But at the context in ix86_expand_builtin, where I could
get the operands which the registers are pseudo registers
(REGNO(op)>FIRST_PSEUDO_REGISTER).
Do you know where could I get the information of the hardware register
and generate assemble code from there?
Thanks,
Feng