//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Nate Begeman and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
};
protected:
enum X86SSEEnum {
- NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3
+ NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42
};
enum X863DNowEnum {
};
/// AsmFlavor - Which x86 asm dialect to use.
+ ///
AsmWriterFlavorTy AsmFlavor;
/// PICStyle - Which PIC style to use
+ ///
PICStyle::Style PICStyle;
- /// X86SSELevel - MMX, SSE1, SSE2, SSE3, SSSE3, or none supported.
+ /// X86SSELevel - MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42, or
+ /// none supported.
X86SSEEnum X86SSELevel;
/// X863DNowLevel - 3DNow or 3DNow Athlon, or none supported.
+ ///
X863DNowEnum X863DNowLevel;
/// HasX86_64 - True if the processor supports X86-64 instructions.
+ ///
bool HasX86_64;
+
+ /// DarwinVers - Nonzero if this is a darwin platform: the numeric
+ /// version of the platform, e.g. 8 = 10.4 (Tiger), 9 = 10.5 (Leopard), etc.
+ unsigned char DarwinVers; // Is any darwin-x86 platform.
+
+ /// isLinux - true if this is a "linux" platform.
+ bool IsLinux;
/// stackAlignment - The minimum alignment known to hold of the stack frame on
/// entry to the function and which must be maintained by every function.
unsigned stackAlignment;
- /// Min. memset / memcpy size that is turned into rep/movs, rep/stos ops.
- unsigned MinRepStrSizeThreshold;
+ /// Max. memset / memcpy size that is turned into rep/movs, rep/stos ops.
+ ///
+ unsigned MaxInlineSizeThreshold;
private:
/// Is64Bit - True if the processor supports 64-bit instructions and module
/// function for this subtarget.
unsigned getStackAlignment() const { return stackAlignment; }
- /// getMinRepStrSizeThreshold - Returns the minimum memset / memcpy size
- /// required to turn the operation into a X86 rep/movs or rep/stos
- /// instruction. This is only used if the src / dst alignment is not DWORD
- /// aligned.
- unsigned getMinRepStrSizeThreshold() const { return MinRepStrSizeThreshold; }
+ /// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size
+ /// that still makes it profitable to inline the call.
+ unsigned getMaxInlineSizeThreshold() const { return MaxInlineSizeThreshold; }
/// ParseSubtargetFeatures - Parses features string setting specified
/// subtarget options. Definition of function is auto generated by tblgen.
bool hasSSE2() const { return X86SSELevel >= SSE2; }
bool hasSSE3() const { return X86SSELevel >= SSE3; }
bool hasSSSE3() const { return X86SSELevel >= SSSE3; }
+ bool hasSSE41() const { return X86SSELevel >= SSE41; }
+ bool hasSSE42() const { return X86SSELevel >= SSE42; }
bool has3DNow() const { return X863DNowLevel >= ThreeDNow; }
bool has3DNowA() const { return X863DNowLevel >= ThreeDNowA; }
bool isFlavorIntel() const { return AsmFlavor == Intel; }
bool isTargetDarwin() const { return TargetType == isDarwin; }
- bool isTargetELF() const { return TargetType == isELF; }
+ bool isTargetELF() const {
+ return TargetType == isELF;
+ }
bool isTargetWindows() const { return TargetType == isWindows; }
bool isTargetMingw() const { return TargetType == isMingw; }
bool isTargetCygMing() const { return (TargetType == isMingw ||
TargetType == isCygwin); }
bool isTargetCygwin() const { return TargetType == isCygwin; }
+ bool isTargetWin64() const {
+ return (Is64Bit && (TargetType == isMingw || TargetType == isWindows));
+ }
+
+ std::string getDataLayout() const {
+ const char *p;
+ if (is64Bit())
+ p = "e-p:64:64-s:64-f64:64:64-i64:64:64-f80:128:128";
+ else {
+ if (isTargetDarwin())
+ p = "e-p:32:32-f64:32:64-i64:32:64-f80:128:128";
+ else
+ p = "e-p:32:32-f64:32:64-i64:32:64-f80:32:32";
+ }
+ return std::string(p);
+ }
bool isPICStyleSet() const { return PICStyle != PICStyle::None; }
bool isPICStyleGOT() const { return PICStyle == PICStyle::GOT; }
bool isPICStyleStub() const { return PICStyle == PICStyle::Stub; }
bool isPICStyleRIPRel() const { return PICStyle == PICStyle::RIPRel; }
bool isPICStyleWinPIC() const { return PICStyle == PICStyle:: WinPIC; }
-
+
+ /// getDarwinVers - Return the darwin version number, 8 = tiger, 9 = leopard.
+ unsigned getDarwinVers() const { return DarwinVers; }
+
+ /// isLinux - Return true if the target is "Linux".
+ bool isLinux() const { return IsLinux; }
+
/// True if accessing the GV requires an extra load. For Windows, dllimported
/// symbols are indirect, loading the value at address GV rather then the
/// value of GV itself. This means that the GlobalAddress must be in the base
bool GVRequiresExtraLoad(const GlobalValue* GV, const TargetMachine& TM,
bool isDirectCall) const;
+ /// This function returns the name of a function which has an interface
+ /// like the non-standard bzero function, if such a function exists on
+ /// the current subtarget and it is considered prefereable over
+ /// memset with zero passed as the second argument. Otherwise it
+ /// returns null.
+ const char *getBZeroEntry() const;
};
namespace X86 {