[tsan] remove unused InternalAllocBlock as part of larger refactoring

llvm-svn: 169123

3 files changed, 0 insertions, 22 deletions

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_allocator.cc b/compiler-rt/lib/sanitizer_common/sanitizer_allocator.cc
index c43933061f1..b13a7c6c14c 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_allocator.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_allocator.cc
@@ -49,13 +49,6 @@ void InternalFree(void *addr) {
   LIBC_FREE(addr);
 }
 
-void *InternalAllocBlock(void *p) {
-  CHECK_NE(p, (void*)0);
-  u64 *pp = (u64*)((uptr)p & ~0x7);
-  for (; pp[0] != kBlockMagic; pp--) {}
-  return pp + 1;
-}
-
 // LowLevelAllocator
 static LowLevelAllocateCallback low_level_alloc_callback;
 
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common.h b/compiler-rt/lib/sanitizer_common/sanitizer_common.h
index dc53d885795..af0e43af613 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common.h
@@ -51,9 +51,6 @@ bool MemoryRangeIsAvailable(uptr range_start, uptr range_end);
 // Internal allocator
 void *InternalAlloc(uptr size);
 void InternalFree(void *p);
-// Given the pointer p into a valid allocated block,
-// returns a pointer to the beginning of the block.
-void *InternalAllocBlock(void *p);
 
 // InternalScopedBuffer can be used instead of large stack arrays to
 // keep frame size low.
diff --git a/compiler-rt/lib/sanitizer_common/tests/sanitizer_allocator_test.cc b/compiler-rt/lib/sanitizer_common/tests/sanitizer_allocator_test.cc
index d3445b6c7c1..80139f0401c 100644
--- a/compiler-rt/lib/sanitizer_common/tests/sanitizer_allocator_test.cc
+++ b/compiler-rt/lib/sanitizer_common/tests/sanitizer_allocator_test.cc
@@ -22,14 +22,6 @@ TEST(Allocator, Basic) {
   char *p2 = (char*)InternalAlloc(20);
   EXPECT_NE(p2, (char*)0);
   EXPECT_NE(p2, p);
-  for (int i = 0; i < 10; i++) {
-    p[i] = 42;
-    EXPECT_EQ(p, InternalAllocBlock(p + i));
-  }
-  for (int i = 0; i < 20; i++) {
-    ((char*)p2)[i] = 42;
-    EXPECT_EQ(p2, InternalAllocBlock(p2 + i));
-  }
   InternalFree(p);
   InternalFree(p2);
 }
@@ -42,10 +34,6 @@ TEST(Allocator, Stress) {
     uptr sz = rand_r(&rnd) % 1000;
     char *p = (char*)InternalAlloc(sz);
     EXPECT_NE(p, (char*)0);
-    for (uptr j = 0; j < sz; j++) {
-      p[j] = 42;
-      EXPECT_EQ(p, InternalAllocBlock(p + j));
-    }
     ptrs[i] = p;
   }
   for (int i = 0; i < kCount; i++) {