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[tsan] make the 64-bit allocator build (but not work) in 32-bit mode to simplify the code and test structure and allow further refactoring

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llvm-svn: 169361
This commit is contained in:
Kostya Serebryany 2012-12-05 07:11:47 +00:00
parent 510e606e19
commit 0afbb325b6
1 changed files with 5 additions and 6 deletions
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11
compiler-rt/lib/sanitizer_common/sanitizer_allocator64.h
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@ -20,12 +20,10 @@
#include "sanitizer_allocator.h"
#if SANITIZER_WORDSIZE != 64
# error "sanitizer_allocator64.h can only be used on 64-bit platforms"
#endif
namespace __sanitizer {
// SizeClassAllocator64 -- allocator for 64-bit address space.
//
// Space: a portion of address space of kSpaceSize bytes starting at
// a fixed address (kSpaceBeg). Both constants are powers of two and
// kSpaceBeg is kSpaceSize-aligned.
@ -143,10 +141,11 @@ class SizeClassAllocator64 {
static const uptr kNumClasses = SizeClassMap::kNumClasses; // 2^k <= 256
private:
static const uptr kRegionSize = kSpaceSize / kNumClasses;
COMPILER_CHECK(kSpaceBeg % kSpaceSize == 0);
COMPILER_CHECK(kNumClasses <= SizeClassMap::kNumClasses);
static const uptr kRegionSize = kSpaceSize / kNumClasses;
COMPILER_CHECK((kRegionSize >> 32) > 0); // kRegionSize must be >= 2^32.
// kRegionSize must be >= 2^32.
COMPILER_CHECK((kRegionSize) >= (1ULL << (SANITIZER_WORDSIZE / 2)));
// Populate the free list with at most this number of bytes at once
// or with one element if its size is greater.
static const uptr kPopulateSize = 1 << 18;