tcg: Implement indirect memory registers

That is, global_mem registers whose base is another global_mem
register, rather than a fixed register.

Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/tcg/tcg.h b/tcg/tcg.h
index 83da5fb3f0..d181694596 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -453,6 +453,8 @@ typedef struct TCGTemp {
     TCGType base_type:8;
     TCGType type:8;
     unsigned int fixed_reg:1;
+    unsigned int indirect_reg:1;
+    unsigned int indirect_base:1;
     unsigned int mem_coherent:1;
     unsigned int mem_allocated:1;
     unsigned int temp_local:1; /* If true, the temp is saved across