slice: OP_SLICE needs the source's type: make it a kind of unop

OP_SLICE's source's type is needed for some simplifications.
For example, in some cases it can be simplified into OP_TRUNC.

So, merge its representation with the one for unops which also
need the source's type.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/linearize.h b/linearize.h
index 4d83675c..429f4797 100644
--- a/linearize.h
+++ b/linearize.h
@@ -113,6 +113,7 @@ struct instruction {
 		};
 		struct /* unops */ {
 			pseudo_t src;
+			unsigned from;			/* slice */
 			struct symbol *orig_type;	/* casts */
 		};
 		struct /* memops */ {
@@ -127,10 +128,6 @@ struct instruction {
 			pseudo_t _src1, _src2;		// alias .src[12]
 			struct symbol *itype;		// input operands' type
 		};
-		struct /* slice */ {
-			pseudo_t base;
-			unsigned from;
-		};
 		struct /* setval */ {
 			struct expression *val;
 		};