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

Reported by Yichun Zhang. #743
2021-09-20 14:36:52 +02:00
parent a622e2eb55
commit 68ffbd318b
3 changed files with 3 additions and 3 deletions
--- a/src/vm_ppc.dasc
+++ b/src/vm_ppc.dasc
@@ -819,11 +819,11 @@ static void build_subroutines(BuildCtx *ctx)
  |.endif
  |     lwz PC, -16(RB)			// Restore PC from [cont|PC].
  |   subi TMP2, RD, 8
-  |    lwz TMP1, LFUNC:TMP1->pc
  |   stwx TISNIL, RA, TMP2		// Ensure one valid arg.
  |.if FFI
  |  ble >1
  |.endif
+  |    lwz TMP1, LFUNC:TMP1->pc
  |    lwz KBASE, PC2PROTO(k)(TMP1)
  |  // BASE = base, RA = resultptr, RB = meta base
  |  mtctr TMP0