On 03/28/2013 09:44 AM, Peter Maydell wrote:
>> +/* Prior to that the assembler uses mov r0, r0. Unlike the nop
>> + above, this is guaranteed to consume execution resources. */
>
> Guaranteed by who? Catching this case in the decoder and treating it
> exactly like NOP is a per
On 28 March 2013 15:33, Richard Henderson wrote:
> +static inline void tcg_out_nop(TCGContext *s)
> +{
> +if (use_armv7_instructions) {
> +/* Architected nop introduced in v6k. */
> +/* ??? This is an MSR (imm) 0,0,0 insn. Anyone know if this
> + also Just So Happen
Move the slow path out of line, as the TODO's mention.
This allows the fast path to be unconditional, which can
speed up the fast path as well, depending on the core.
Signed-off-by: Richard Henderson
---
configure | 2 +-
include/exec/exec-all.h | 17 +++
tcg/arm/tcg-target.c
