#include "llvm/GlobalValue.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Host.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
ToggleFeature(X86::FeatureSlowBTMem);
}
- // If it's Nehalem, unaligned memory access is fast.
- // Include Westmere and Sandy Bridge as well.
- // FIXME: add later processors.
- if (IsIntel && ((Family == 6 && Model == 26) ||
- (Family == 6 && Model == 44) ||
- (Family == 6 && Model == 42))) {
+ // If it's an Intel chip since Nehalem and not an Atom chip, unaligned
+ // memory access is fast. We hard code model numbers here because they
+ // aren't strictly increasing for Intel chips it seems.
+ if (IsIntel &&
+ ((Family == 6 && Model == 0x1E) || // Nehalem: Clarksfield, Lynnfield,
+ // Jasper Froest
+ (Family == 6 && Model == 0x1A) || // Nehalem: Bloomfield, Nehalem-EP
+ (Family == 6 && Model == 0x2E) || // Nehalem: Nehalem-EX
+ (Family == 6 && Model == 0x25) || // Westmere: Arrandale, Clarksdale
+ (Family == 6 && Model == 0x2C) || // Westmere: Gulftown, Westmere-EP
+ (Family == 6 && Model == 0x2F) || // Westmere: Westmere-EX
+ (Family == 6 && Model == 0x2A) || // SandyBridge
+ (Family == 6 && Model == 0x2D) || // SandyBridge: SandyBridge-E*
+ (Family == 6 && Model == 0x3A))) {// IvyBridge
IsUAMemFast = true;
ToggleFeature(X86::FeatureFastUAMem);
}