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On Mon, May 3, 2010 at 9:54 PM, Jakub Jelinek<jakub@redhat.com> wrote:
Aren't AREG, DREG, CREG, BREG, SIREG, DIREG, AD_REGS, /* %eax/%edx for DImode */ SSE_FIRST_REG, classes small though? Aren't we going to ICE frequently whenever x86-64 code uses these classes say in inline asm?
We had this discussion one and a half year ago, too. The consensus appeared to be that, yes, those classes are small, but there are enough registers around to spill to for the register allocator.
-- Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290 Saturnushof 14, 3738 XG Maartensdijk, The Netherlands At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/ Progress of GNU Fortran: http://gcc.gnu.org/gcc-4.5/changes.html#Fortran
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