Implement stack_addr, stack_load, stack_store for x86-64. (#370)

2018-06-26 06:15:21 -07:00
parent fbd637e142
commit 7d2b44289c
6 changed files with 179 additions and 1 deletions
--- a/lib/codegen/meta/isa/x86/encodings.py
+++ b/lib/codegen/meta/isa/x86/encodings.py
@@ -436,6 +436,15 @@ X86_64.enc(base.globalsym_addr.i64, *r.pcrel_gvaddr8.rex(0x8d, w=1),
 X86_64.enc(base.globalsym_addr.i64, *r.got_gvaddr8.rex(0x8b, w=1),
           isap=is_pic)

+#
+# Stack addresses.
+#
+# TODO: Add encoding rules for stack_load and stack_store, so that they
+# don't get legalized to stack_addr + load/store.
+#
+X86_32.enc(base.stack_addr.i32, *r.spaddr4_id(0x8d))
+X86_64.enc(base.stack_addr.i64, *r.spaddr8_id.rex(0x8d, w=1))
+
 #
 # Call/return
 #