[compiler-rt] r300103 - Avoid calling SizeClassMap::MaxCachedHint on hot path, it's not free.
Alex Shlyapnikov via llvm-commits
llvm-commits at lists.llvm.org
Wed Apr 12 13:51:42 PDT 2017
Author: alekseyshl
Date: Wed Apr 12 15:51:42 2017
New Revision: 300103
URL: http://llvm.org/viewvc/llvm-project?rev=300103&view=rev
Log:
Avoid calling SizeClassMap::MaxCachedHint on hot path, it's not free.
Summary: Remove unecessary SizeClassMap::MaxCachedHint call.
Reviewers: eugenis
Subscribers: llvm-commits, kubamracek
Differential Revision: https://reviews.llvm.org/D31989
Modified:
compiler-rt/trunk/lib/sanitizer_common/sanitizer_allocator_local_cache.h
Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_allocator_local_cache.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_allocator_local_cache.h?rev=300103&r1=300102&r2=300103&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_allocator_local_cache.h (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_allocator_local_cache.h Wed Apr 12 15:51:42 2017
@@ -102,7 +102,7 @@ struct SizeClassAllocator64LocalCache {
NOINLINE void Refill(PerClass *c, SizeClassAllocator *allocator,
uptr class_id) {
InitCache();
- uptr num_requested_chunks = SizeClassMap::MaxCachedHint(class_id);
+ uptr num_requested_chunks = c->max_count / 2;
allocator->GetFromAllocator(&stats_, class_id, c->chunks,
num_requested_chunks);
c->count = num_requested_chunks;
More information about the llvm-commits
mailing list