FFI: Don't load PC from non-function object in FFI continuation.

Reported by Yichun Zhang. #743
2021-09-20 14:39:26 +02:00
parent 98b7d9a3b2
commit 003f68565d
2 changed files with 2 additions and 2 deletions
--- a/src/vm_mips64.dasc
+++ b/src/vm_mips64.dasc
@@ -728,11 +728,11 @@ static void build_subroutines(BuildCtx *ctx)
  |     ld PC, -24(RB)			// Restore PC from [cont|PC].
  |    cleartp LFUNC:TMP1
  |   daddu TMP2, RA, RD
-  |    ld TMP1, LFUNC:TMP1->pc
  |.if FFI
  |  bnez AT, >1
  |.endif
  |.  sd TISNIL, -8(TMP2)		// Ensure one valid arg.
+  |    ld TMP1, LFUNC:TMP1->pc
  |  // BASE = base, RA = resultptr, RB = meta base
  |  jr TMP0				// Jump to continuation.
  |.  ld KBASE, PC2PROTO(k)(TMP1)