under useithreads, PUSHLOOP must save PL_curpad for looking up

iterdata, since dounwind() may defer LEAVEs

p4raw-id: //depot/perl@5847

diff --git a/cop.h b/cop.h
index 5dd937e..e588675 100644 (file)
--- a/cop.h
+++ b/cop.h
@@ -181,6 +181,7 @@ struct block_loop {
     OP *       last_op;
 #ifdef USE_ITHREADS
     void *     iterdata;
+    SV **      oldcurpad;
 #else
     SV **      itervar;
 #endif
@@ -195,10 +196,11 @@ struct block_loop {
 #  define CxITERVAR(c)                                                 \
        ((c)->blk_loop.iterdata                                         \
         ? (CxPADLOOP(cx)                                               \
-           ? &PL_curpad[(PADOFFSET)(c)->blk_loop.iterdata]             \
+           ? &((c)->blk_loop.oldcurpad)[(PADOFFSET)(c)->blk_loop.iterdata]     \
            : &GvSV((GV*)(c)->blk_loop.iterdata))                       \
         : (SV**)NULL)
 #  define CX_ITERDATA_SET(cx,idata)                                    \
+       cx->blk_loop.oldcurpad = PL_curpad;                             \
        if ((cx->blk_loop.iterdata = (idata)))                          \
            cx->blk_loop.itersave = SvREFCNT_inc(*CxITERVAR(cx));
 #else