path: root/vm.c
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authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-10-23 17:53:35 (GMT)
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-10-23 17:53:35 (GMT)
commitf9697c5637f84d1ec9cb46a2115c76c7971aeb0f (patch)
tree7991edac0f5872f2c8ac7aecffed6e87226518ed /vm.c
parent1e0600324b651310396329343fd407507a533318 (diff)
* vm_insnhelper.c: introduce new call handler for simple ISeqs.
vm_call_iseq_setup_normal_0start() is simple, however it has some loops/conditions depends on ISeq::param.size and ISeq::local_size (in vm_push_frame(), inlined into this function). There are many simple methods which has a few parameters and local variables. So that this patch introduces several special functions generated in by tool/mk_call_iseq_optimized.rb. This script makes vm_call_iseq_setup_normal_0start_Xparams_Ylocals() where X is 0 to 3 and Y is 1 to 6 (as current setting). In this case, X * Y = 24 functions are created. These functions creates fast method dispatch by inlining vm_push_frame() with immediate params/locals sizes. On my laptop, we can have the following results. vm2_method* 1.083 (8.3% faster) vm2_poly_method* 0.961 (3.4% slower) It shows 8.3% faster for inner loop method dispatch (hit inline cache), but 3.4% slower when inline cache miss because we need to find a suitable call handler. * add a rule for * tool/mk_call_iseq_optimized.rb: added. * vm.c: include git-svn-id: svn+ssh:// b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm.c')
1 files changed, 2 insertions, 0 deletions
diff --git a/vm.c b/vm.c
index 755c28f..d22e696 100644
--- a/vm.c
+++ b/vm.c
@@ -3111,3 +3111,5 @@ vm_collect_usage_register(int reg, int isset)
(*ruby_vm_collect_usage_func_register)(reg, isset);
+#include "" /* required from vm_insnhelper.c */