[TSAN] Fix test java_race_pc

Incremented the pc for each architecture in accordance with StackTrace:GetPreviousInstructionPC

Reviewers: samsonov, dvyukov
Subscribers: llvm-commits, mohit.bhakkad, jaydeep
Differential: http://reviews.llvm.org/D17802
llvm-svn: 262483

2 files changed, 12 insertions, 2 deletions

diff --git a/compiler-rt/test/tsan/java_race_pc.cc b/compiler-rt/test/tsan/java_race_pc.cc
index 0745ade6c47..53dc8976a78 100644
--- a/compiler-rt/test/tsan/java_race_pc.cc
+++ b/compiler-rt/test/tsan/java_race_pc.cc
@@ -13,7 +13,7 @@ void barbaz() {
 
 void *Thread(void *p) {
   barrier_wait(&barrier);
-  __tsan_read1_pc((jptr)p, (jptr)foobar + 1);
+  __tsan_read1_pc((jptr)p, (jptr)foobar + kPCInc);
   return 0;
 }
 
@@ -26,7 +26,7 @@ int main() {
   __tsan_java_alloc(jheap, kBlockSize);
   pthread_t th;
   pthread_create(&th, 0, Thread, (void*)jheap);
-  __tsan_write1_pc((jptr)jheap, (jptr)barbaz + 1);
+  __tsan_write1_pc((jptr)jheap, (jptr)barbaz + kPCInc);
   barrier_wait(&barrier);
   pthread_join(th, 0);
   __tsan_java_free(jheap, kBlockSize);
diff --git a/compiler-rt/test/tsan/test.h b/compiler-rt/test/tsan/test.h
index a681daa3290..c9e90fab752 100644
--- a/compiler-rt/test/tsan/test.h
+++ b/compiler-rt/test/tsan/test.h
@@ -67,3 +67,13 @@ unsigned long long monotonic_clock_ns() {
   return (unsigned long long)t.tv_sec * 1000000000ull + t.tv_nsec;
 }
 #endif
+
+//The const kPCInc must be in sync with StackTrace::GetPreviousInstructionPc
+#if defined(__powerpc64__)
+// PCs are always 4 byte aligned.
+const int kPCInc = 4;
+#elif defined(__sparc__) || defined(__mips__)
+const int kPCInc = 8;
+#else
+const int kPCInc = 1;
+#endif