1 files changed, 11 insertions, 0 deletions

diff --git a/src/lj_ir.h b/src/lj_ir.h
index bdedaddd..8154949c 100644
--- a/src/lj_ir.h
+++ b/src/lj_ir.h
@@ -118,6 +118,7 @@
   _(OBAR,       S , ref, ref) \
   \
   /* Type conversions. */ \
+  _(CONV,       N , ref, lit) \
   _(TONUM,      N , ref, ___) \
   _(TOINT,      N , ref, lit) \
   _(TOBIT,      N , ref, ref) \
@@ -218,6 +219,16 @@ IRFLDEF(FLENUM)
 #define IRTOINT_TRUNCI64        5       /* Truncate number to int64_t. */
 #define IRTOINT_TOBIT           6       /* Cache only: TOBIT conversion. */
 
+/* CONV mode, stored in op2. Lowest 8 bits is the IRType of the source. */
+#define IRCONV_TRUNC            0x100   /* Truncate number to integer. */
+#define IRCONV_SEXT             0x200   /* Sign-extend integer to integer. */
+#define IRCONV_CSH              10
+/* Number to integer conversion mode. Ordered by strength of the checks. */
+#define IRCONV_TOBIT  (0<<IRCONV_CSH)   /* None. Cache only: TOBIT conv. */
+#define IRCONV_ANY    (1<<IRCONV_CSH)   /* Any FP number is ok. */
+#define IRCONV_INDEX  (2<<IRCONV_CSH)   /* Check + special backprop rules. */
+#define IRCONV_CHECK  (3<<IRCONV_CSH)   /* Number checked for integerness. */
+
 /* C call info for CALL* instructions. */
 typedef struct CCallInfo {
   ASMFunction func;             /* Function pointer. */