Richard Henderson b3e2bc500f tcg-i386: Remove "cb" output restriction from qemu_st8 for i386 ... Once we form a combined qemu_st_i32 opcode, we won't be able to have separate constraints based on size. This one is fairly easy to work around, since eax is available as a scratch register. When storing variable data, this tends to merely exchange one mov for another. E.g. -: mov %esi,%ecx ... -: mov %cl,(%edx) +: mov %esi,%eax +: mov %al,(%edx) Where we do have a regression is when storing constant data, in which we may load the constant into edi, when only ecx/ebx ought to be used. The proper way to recover this regression is to allow constants as arguments to qemu_st_i32, so that we never load the constant data into a register at all, must less the wrong register. TBD. Signed-off-by: Richard Henderson <rth@twiddle.net>		2013-10-12 16:19:19 -07:00
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tcg-target.c	tcg-i386: Remove "cb" output restriction from qemu_st8 for i386	2013-10-12 16:19:19 -07:00
tcg-target.h	tcg: Add qemu_ld_st_i32/64	2013-10-10 13:19:21 -07:00