Richard Henderson 3c3dee3747 tcg/ppc: Revise goto_tb implementation ... Restrict the size of code_gen_buffer to 2GB on ppc64, which lets us assert that everything is reachable with addis+addi from tb_ret_addr. This lets us use a max of 4 insns for goto_tb instead of 7. Emit the indirect branch portion of goto_tb up front, which means we only have to update two insns to update any link. With a 64-bit store, we can update the link atomically, which may be required in future. Backports commit 5bfd75a35c11dd3aa61c73d0d2cd88137c31519c from qemu		2018-02-17 15:24:03 -05:00
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tcg-target.c	tcg/ppc: Revise goto_tb implementation	2018-02-17 15:24:03 -05:00
tcg-target.h	tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS	2018-02-13 08:28:29 -05:00