X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FSupport%2FMemory.cpp;h=f9a4903ad015781d9e1435beac90963581761119;hb=f359f7ef8c8cccea0c830308289fe7fe2c148bdc;hp=a9689b2c39f2eaad44a3f5c0dc7388bf5b14b656;hpb=1f6efa3996dd1929fbc129203ce5009b620e6969;p=oota-llvm.git diff --git a/lib/Support/Memory.cpp b/lib/Support/Memory.cpp index a9689b2c39f..f9a4903ad01 100644 --- a/lib/Support/Memory.cpp +++ b/lib/Support/Memory.cpp @@ -13,12 +13,8 @@ //===----------------------------------------------------------------------===// #include "llvm/Support/Memory.h" -#include "llvm/Support/Valgrind.h" #include "llvm/Config/config.h" - -namespace llvm { -using namespace sys; -} +#include "llvm/Support/Valgrind.h" // Include the platform-specific parts of this class. #ifdef LLVM_ON_UNIX @@ -27,48 +23,3 @@ using namespace sys; #ifdef LLVM_ON_WIN32 #include "Windows/Memory.inc" #endif - -extern "C" void sys_icache_invalidate(const void *Addr, size_t len); - -/// InvalidateInstructionCache - Before the JIT can run a block of code -/// that has been emitted it must invalidate the instruction cache on some -/// platforms. -void llvm::sys::Memory::InvalidateInstructionCache(const void *Addr, - size_t Len) { - -// icache invalidation for PPC and ARM. -#if defined(__APPLE__) - -# if (defined(__POWERPC__) || defined (__ppc__) || \ - defined(_POWER) || defined(_ARCH_PPC)) || defined(__arm__) - sys_icache_invalidate(Addr, Len); -# endif - -#else - -# if (defined(__POWERPC__) || defined (__ppc__) || \ - defined(_POWER) || defined(_ARCH_PPC)) && defined(__GNUC__) - const size_t LineSize = 32; - - const intptr_t Mask = ~(LineSize - 1); - const intptr_t StartLine = ((intptr_t) Addr) & Mask; - const intptr_t EndLine = ((intptr_t) Addr + Len + LineSize - 1) & Mask; - - for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize) - asm volatile("dcbf 0, %0" : : "r"(Line)); - asm volatile("sync"); - - for (intptr_t Line = StartLine; Line < EndLine; Line += LineSize) - asm volatile("icbi 0, %0" : : "r"(Line)); - asm volatile("isync"); -# elif defined(__arm__) && defined(__GNUC__) - // FIXME: Can we safely always call this for __GNUC__ everywhere? - char *Start = (char*) Addr; - char *End = Start + Len; - __clear_cache(Start, End); -# endif - -#endif // end apple - - ValgrindDiscardTranslations(Addr, Len); -}