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| author | David Brazdil <dbrazdil@google.com> | 2015-05-29 16:29:43 +0100 |
|---|---|---|
| committer | David Brazdil <dbrazdil@google.com> | 2015-06-04 17:25:02 +0100 |
| commit | f677ebfd832c9c614fea5e6735725fec2f7a3f2a (patch) | |
| tree | 051b3ba6343bdbca4929d728dd5c0341e4383a08 /compiler/optimizing/stack_map_stream.h | |
| parent | c47908e8c32fd58bc4dc75998a80f706954db1dc (diff) | |
Cache stack map encoding
Operations on CodeInfo and StackMap objects repeatedly read encoding
information from the MemoryRegion. Since these are 3-bit-loads of
values that never change, caching them can measurably reduce compile
times.
According to benchmarks, this patch saves 1-3% on armv7, 2-4% on x86,
and 0-1% on x64.
Change-Id: I46b197513601325d8bab562cc80100c00ec28a3b
Diffstat (limited to 'compiler/optimizing/stack_map_stream.h')
| -rw-r--r-- | compiler/optimizing/stack_map_stream.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/optimizing/stack_map_stream.h b/compiler/optimizing/stack_map_stream.h index 0af983b1bf..274d573350 100644 --- a/compiler/optimizing/stack_map_stream.h +++ b/compiler/optimizing/stack_map_stream.h @@ -171,6 +171,7 @@ class StackMapStream : public ValueObject { StackMapEntry current_entry_; InlineInfoEntry current_inline_info_; + StackMapEncoding stack_map_encoding_; size_t stack_mask_size_; size_t inline_info_size_; size_t dex_register_maps_size_; |