darwin9 and above support aligned common symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45494 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index ae36fac..7b686ed 100644
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -221,6 +221,7 @@
, PICStyle(PICStyle::None)
, X86SSELevel(NoMMXSSE)
, HasX86_64(false)
+ , DarwinVers(0)
, stackAlignment(8)
// FIXME: this is a known good value for Yonah. How about others?
, MaxInlineSizeThreshold(128)
@@ -256,14 +257,22 @@
// if one cannot be determined, to true.
const std::string& TT = M.getTargetTriple();
if (TT.length() > 5) {
- if (TT.find("cygwin") != std::string::npos)
- TargetType = isCygwin;
- else if (TT.find("mingw") != std::string::npos)
- TargetType = isMingw;
- else if (TT.find("darwin") != std::string::npos)
+ unsigned Pos;
+ if ((Pos = TT.find("-darwin")) != std::string::npos) {
TargetType = isDarwin;
- else if (TT.find("win32") != std::string::npos)
+
+ // Compute the darwin version number.
+ if (isdigit(TT[Pos+7]))
+ DarwinVers = atoi(&TT[Pos+7]);
+ else
+ DarwinVers = 8; // Minimum supported darwin is Tiger.
+ } else if (TT.find("cygwin") != std::string::npos) {
+ TargetType = isCygwin;
+ } else if (TT.find("mingw") != std::string::npos) {
+ TargetType = isMingw;
+ } else if (TT.find("win32") != std::string::npos) {
TargetType = isWindows;
+ }
} else if (TT.empty()) {
#if defined(__CYGWIN__)
TargetType = isCygwin;
@@ -271,6 +280,12 @@
TargetType = isMingw;
#elif defined(__APPLE__)
TargetType = isDarwin;
+#if __APPLE_CC__ > 5400
+ DarwinVers = 9; // GCC 5400+ is Leopard.
+#else
+ DarwinVers = 8; // Minimum supported darwin is Tiger.
+#endif
+
#elif defined(_WIN32)
TargetType = isWindows;
#endif
@@ -279,11 +294,8 @@
// If the asm syntax hasn't been overridden on the command line, use whatever
// the target wants.
if (AsmFlavor == X86Subtarget::Unset) {
- if (TargetType == isWindows) {
- AsmFlavor = X86Subtarget::Intel;
- } else {
- AsmFlavor = X86Subtarget::ATT;
- }
+ AsmFlavor = (TargetType == isWindows)
+ ? X86Subtarget::Intel : X86Subtarget::ATT;
}
if (TargetType == isDarwin && Is64Bit)