Mercurial > hg > graal-jvmci-8
diff src/share/vm/opto/runtime.hpp @ 3961:a92cdbac8b9e
7081933: Use zeroing elimination optimization for large array
Summary: Don't zero new typeArray during runtime call if the allocation is followed by arraycopy into it.
Reviewed-by: twisti
| author | kvn |
|---|---|
| date | Mon, 26 Sep 2011 10:24:05 -0700 |
| parents | 263247c478c5 |
| children | 7e0e43cf86d6 |
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--- a/src/share/vm/opto/runtime.hpp Sun Sep 25 16:03:29 2011 -0700 +++ b/src/share/vm/opto/runtime.hpp Mon Sep 26 10:24:05 2011 -0700 @@ -114,6 +114,7 @@ // References to generated stubs static address _new_instance_Java; static address _new_array_Java; + static address _new_array_nozero_Java; static address _multianewarray2_Java; static address _multianewarray3_Java; static address _multianewarray4_Java; @@ -143,6 +144,7 @@ // Allocate storage for a objArray or typeArray static void new_array_C(klassOopDesc* array_klass, int len, JavaThread *thread); + static void new_array_nozero_C(klassOopDesc* array_klass, int len, JavaThread *thread); // Post-slow-path-allocation, pre-initializing-stores step for // implementing ReduceInitialCardMarks @@ -208,6 +210,7 @@ // access to runtime stubs entry points for java code static address new_instance_Java() { return _new_instance_Java; } static address new_array_Java() { return _new_array_Java; } + static address new_array_nozero_Java() { return _new_array_nozero_Java; } static address multianewarray2_Java() { return _multianewarray2_Java; } static address multianewarray3_Java() { return _multianewarray3_Java; } static address multianewarray4_Java() { return _multianewarray4_Java; }