LJ_FR2: Fix stack checks in vararg calls.

Thanks to Peter Cawley. #1048
2023-09-21 05:19:55 +02:00
parent 234dbc481e
commit d1a2fef8a8
4 changed files with 4 additions and 2 deletions
--- a/src/vm_mips64.dasc
+++ b/src/vm_mips64.dasc
@@ -5396,6 +5396,7 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
    |   settp LFUNC:RB, TMP0
    |  daddu TMP0, RA, RC
    |   sd LFUNC:RB, 0(TMP1)		// Store (tagged) copy of LFUNC.
+    |  daddiu TMP2, TMP2, -8
    |   daddiu TMP3, RC, 16+FRAME_VARG
    |  sltu AT, TMP0, TMP2
    |    ld KBASE, -4+PC2PROTO(k)(PC)