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Unified Diff: src/utils.h

Issue 9148006: [objects] seed NumberDictionary (only ia32 now) Base URL: gh:v8/v8@master
Patch Set: added test, decoupled code Created 8 years, 11 months ago
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« src/objects-inl.h ('K') | « src/objects-inl.h ('k') | src/x64/macro-assembler-x64.h » ('j') | test/cctest/test-hashing.cc » ('J')
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Index: src/utils.h
diff --git a/src/utils.h b/src/utils.h
index 68b1517de4b822399d8d34c003084d1482f091eb..7ead0df2a2154b3884a23301d301619da0227633 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -254,8 +254,9 @@ class BitField {
// Thomas Wang, Integer Hash Functions.
// http://www.concentric.net/~Ttwang/tech/inthash.htm
-inline uint32_t ComputeIntegerHash(uint32_t key) {
+inline uint32_t ComputeIntegerHash(uint32_t key, uint32_t seed = 0) {
Erik Corry 2012/01/10 11:53:16 No default arguments.
uint32_t hash = key;
+ hash = hash ^ seed;
hash = ~hash + (hash << 15); // hash = (hash << 15) - hash - 1;
hash = hash ^ (hash >> 12);
hash = hash + (hash << 2);
« src/objects-inl.h ('K') | « src/objects-inl.h ('k') | src/x64/macro-assembler-x64.h » ('j') | test/cctest/test-hashing.cc » ('J')

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