kbr@chromium.org 46e6297e3e Added infrastructure for optimizing new CanvasArray types in WebGL ... specification under development. The optimizations are patterned after those previously done for CanvasPixelArray. This CL adds all of the necessary framework but continues to use the generic KeyedLoadIC and KeyedStoreIC code, to create a baseline for benchmarking purposes. The next CL will add the optimized ICs to ic-ia32.cc and ic-x64.cc. These new CanvasArray types have different semantics than CanvasPixelArray; out-of-range values are clamped via C cast semantics, which is cheaper than the clamping behavior specified by CanvasPixelArray. Out-of-range indices raise exceptions instead of being silently ignored. As part of this work, pulled FloatingPointHelper::AllocateHeapNumber up to MacroAssembler on ia32 and x64 platforms. Slightly refactored KeyedLoadIC and KeyedStoreIC. Fixed encoding for fistp_d on x64 and added a few more instructions that are needed for the new ICs. The test cases in test-api.cc have been verified by hand to exercise all of the generated code paths in the forthcoming specialized ICs. Review URL: http://codereview.chromium.org/293023 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00		2009-10-20 15:26:17 +00:00
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v8-debug.h	Added API for getting object mirrors	2009-08-17 14:26:48 +00:00
v8.h	Added infrastructure for optimizing new CanvasArray types in WebGL	2009-10-20 15:26:17 +00:00