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authorJeffrey Yasskin <jyasskin@gmail.com>2009-02-28 19:03:21 (GMT)
committerJeffrey Yasskin <jyasskin@gmail.com>2009-02-28 19:03:21 (GMT)
commit68d68520061a5a4aa3437f8c74ba383b2da50280 (patch)
treeaaade0afac9b9369b58c5642e2635fa319f61c02 /Include/opcode.h
parentde28d6841e60d75ce7644ca527448f73376ec48e (diff)
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Backport r69961 to trunk, replacing JUMP_IF_{TRUE,FALSE} with
POP_JUMP_IF_{TRUE,FALSE} and JUMP_IF_{TRUE,FALSE}_OR_POP. This avoids executing a POP_TOP on each conditional and sometimes allows the peephole optimizer to skip a JUMP_ABSOLUTE entirely. It speeds up list comprehensions significantly.
Diffstat (limited to 'Include/opcode.h')
-rw-r--r--Include/opcode.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/Include/opcode.h b/Include/opcode.h
index 5e6fba0..36a35dc 100644
--- a/Include/opcode.h
+++ b/Include/opcode.h
@@ -106,9 +106,12 @@ extern "C" {
#define IMPORT_FROM 108 /* Index in name list */
#define JUMP_FORWARD 110 /* Number of bytes to skip */
-#define JUMP_IF_FALSE 111 /* "" */
-#define JUMP_IF_TRUE 112 /* "" */
-#define JUMP_ABSOLUTE 113 /* Target byte offset from beginning of code */
+#define JUMP_IF_FALSE_OR_POP 111 /* Target byte offset from beginning
+ of code */
+#define JUMP_IF_TRUE_OR_POP 112 /* "" */
+#define JUMP_ABSOLUTE 113 /* "" */
+#define POP_JUMP_IF_FALSE 114 /* "" */
+#define POP_JUMP_IF_TRUE 115 /* "" */
#define LOAD_GLOBAL 116 /* Index in name list */