New compiler and bytecodes for foreach and lmap: 70% faster

   * speed as measured by http://wiki.tcl.tk/39021: runs in <1/3 the time

   * still need to adapt array-set to use this

   * assemble.test-16.5 or 16.6 bombs in a purify/symbols build (?)

   * removing the old opcodes would force recompilation of old .tbc files or adaptation of tbcload

1 files changed, 10 insertions, 0 deletions

diff --git a/generic/tclCompile.c b/generic/tclCompile.c
index 3c8e4ef..7cd9796 100644
--- a/generic/tclCompile.c
+++ b/generic/tclCompile.c
@@ -545,6 +545,16 @@ InstructionDesc const tclInstructionTable[] = {
 	/* Drops an element from the auxiliary stack, popping stack elements
 	 * until the matching stack depth is reached. */
 
+    /* New foreach implementation */
+    {"foreach_start",	  5,   +2,          1,	{OPERAND_AUX4}},
+	/* Initialize execution of a foreach loop. Operand is aux data index
+	 * of the ForeachInfo structure for the foreach command. It pushes 2
+	 * elements which hold runtime params for foreach_step, they are later
+	 * dropped by foreach_end together with the value lists. */ 
+    {"foreach_step",	  1,    0,         0,	{OPERAND_NONE}},
+	/* "Step" or begin next iteration of foreach loop. */
+    {"foreach_end",	  1,    0,         0,	{OPERAND_NONE}},
+
     {NULL, 0, 0, 0, {OPERAND_NONE}}
 };