Revert: r211588 - [mips] Use __clear_cache builtin instead of cacheflush() in Unix Memory::InvalidateInstructionCache()
Buildbot reports a test failure on the llvm-mips-linux builder and blames r211588.
Although it doesn't appear in the blamelist, it seems it could also be r211587
(because it's committed to compiler-rt?) since they were tested together.
Reverting the most likely suspect (r211588) to confirm one way or the other.
llvm-svn: 211594
diff --git a/llvm/lib/Support/Unix/Memory.inc b/llvm/lib/Support/Unix/Memory.inc
index cae39d4..c9d89a8 100644
--- a/llvm/lib/Support/Unix/Memory.inc
+++ b/llvm/lib/Support/Unix/Memory.inc
@@ -333,15 +333,23 @@
for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize)
asm volatile("icbi 0, %0" : : "r"(Line));
asm volatile("isync");
-# elif (defined(__arm__) || defined(__aarch64__) || defined(__mips__)) && defined(__GNUC__)
+# elif (defined(__arm__) || defined(__aarch64__)) && defined(__GNUC__)
// FIXME: Can we safely always call this for __GNUC__ everywhere?
- // Use compiler's builtin
const char *Start = static_cast<const char *>(Addr);
const char *End = Start + Len;
__clear_cache(const_cast<char *>(Start), const_cast<char *>(End));
# elif defined(__mips__)
const char *Start = static_cast<const char *>(Addr);
+# if defined(ANDROID)
+ // The declaration of "cacheflush" in Android bionic:
+ // extern int cacheflush(long start, long end, long flags);
+ const char *End = Start + Len;
+ long LStart = reinterpret_cast<long>(const_cast<char *>(Start));
+ long LEnd = reinterpret_cast<long>(const_cast<char *>(End));
+ cacheflush(LStart, LEnd, BCACHE);
+# else
cacheflush(const_cast<char *>(Start), Len, BCACHE);
+# endif
# endif
#endif // end apple