[PATCH 08/16] cast: do not compare sizes, test the opcode

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In simplify_cast(), the sizes of the instructions are
compared to test if the cast is a truncating one or not.
But now that we have finer grained cast instructions, this
is not needed as we can simply test if the opcode is OP_TRUNC.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
 simplify.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/simplify.c b/simplify.c
index 68195d5f9..94acd5670 100644
--- a/simplify.c
+++ b/simplify.c
@@ -992,7 +992,7 @@ static int simplify_cast(struct instruction *insn)
 	switch (def_opcode(src)) {
 	case OP_AND:
 		/* A cast of a AND might be a no-op.. */
-		if (def->size >= size) {
+		if (insn->opcode == OP_TRUNC) {
 			pseudo_t val = def->src2;
 			if (val->type == PSEUDO_VAL) {
 				unsigned long long value = val->value;
-- 
2.18.0

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