Richard Henderson 6597c28d61 target/openrisc: Optimize for r0 being zero ...

The HW does not special-case r0, but the ABI specifies that r0 should
contain 0.  If we expose this fact to the optimizer, we can simplify
a lot of the generated code.  We must of course verify that r0==0, but
that is trivial to do with a TB flag.

Signed-off-by: Richard Henderson <rth@twiddle.net>

2017-02-14 08:15:00 +11:00

..

cpu.c

target/openrisc: Implement lwa, swa

2017-02-14 08:14:59 +11:00

cpu.h

target/openrisc: Optimize for r0 being zero

2017-02-14 08:15:00 +11:00

exception_helper.c

target/openrisc: Optimize for r0 being zero

2017-02-14 08:15:00 +11:00

exception.c

…

exception.h

…

fpu_helper.c

target/openrisc: Fix madd

2017-02-14 08:15:00 +11:00

gdbstub.c

target/openrisc: Tidy handling of delayed branches

2017-02-14 08:15:00 +11:00

helper.h

target/openrisc: Fix madd

2017-02-14 08:15:00 +11:00

interrupt_helper.c

target/openrisc: Tidy ppc/npc implementation

2017-02-14 08:15:00 +11:00

interrupt.c

target/openrisc: Tidy handling of delayed branches

2017-02-14 08:15:00 +11:00

machine.c

target/openrisc: Tidy ppc/npc implementation

2017-02-14 08:15:00 +11:00

Makefile.objs

target/openrisc: Streamline arithmetic and OVE

2017-02-14 08:14:59 +11:00

mmu_helper.c

…

mmu.c

target/openrisc: Implement lwa, swa

2017-02-14 08:14:59 +11:00

sys_helper.c

target/openrisc: Tidy handling of delayed branches

2017-02-14 08:15:00 +11:00

translate.c

target/openrisc: Optimize for r0 being zero

2017-02-14 08:15:00 +11:00