Add TargetInfo libraries for all targets.
- Intended to match current TargetMachine implementations.
- No facilities for linking these in yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75751 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/TargetInfo/X86TargetInfo.cpp b/lib/Target/X86/TargetInfo/X86TargetInfo.cpp
new file mode 100644
index 0000000..9d811ab
--- /dev/null
+++ b/lib/Target/X86/TargetInfo/X86TargetInfo.cpp
@@ -0,0 +1,98 @@
+//===-- X86TargetInfo.cpp - X86 Target Implementation ---------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Module.h"
+#include "llvm/Target/TargetRegistry.h"
+using namespace llvm;
+
+Target TheX86_32Target;
+
+static unsigned X86_32_JITMatchQuality() {
+#if defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86)
+ return 10;
+#endif
+ return 0;
+}
+
+static unsigned X86_32_TripleMatchQuality(const std::string &TT) {
+ // We strongly match "i[3-9]86-*".
+ if (TT.size() >= 5 && TT[0] == 'i' && TT[2] == '8' && TT[3] == '6' &&
+ TT[4] == '-' && TT[1] - '3' < 6)
+ return 20;
+
+ return 0;
+}
+
+static unsigned X86_32_ModuleMatchQuality(const Module &M) {
+ // Check for a triple match.
+ if (unsigned Q = X86_32_TripleMatchQuality(M.getTargetTriple()))
+ return Q;
+
+ // If the target triple is something non-X86, we don't match.
+ if (!M.getTargetTriple().empty()) return 0;
+
+ if (M.getEndianness() == Module::LittleEndian &&
+ M.getPointerSize() == Module::Pointer32)
+ return 10; // Weak match
+ else if (M.getEndianness() != Module::AnyEndianness ||
+ M.getPointerSize() != Module::AnyPointerSize)
+ return 0; // Match for some other target
+
+ return X86_32_JITMatchQuality()/2;
+}
+
+Target TheX86_64Target;
+
+static unsigned X86_64_JITMatchQuality() {
+#if defined(__x86_64__) || defined(_M_AMD64)
+ return 10;
+#endif
+ return 0;
+}
+
+static unsigned X86_64_TripleMatchQuality(const std::string &TT) {
+ // We strongly match "x86_64-*".
+ if (TT.size() >= 7 && TT[0] == 'x' && TT[1] == '8' && TT[2] == '6' &&
+ TT[3] == '_' && TT[4] == '6' && TT[5] == '4' && TT[6] == '-')
+ return 20;
+
+ return 0;
+}
+
+static unsigned X86_64_ModuleMatchQuality(const Module &M) {
+ // Check for a triple match.
+ if (unsigned Q = X86_64_TripleMatchQuality(M.getTargetTriple()))
+ return Q;
+
+ // If the target triple is something non-X86-64, we don't match.
+ if (!M.getTargetTriple().empty()) return 0;
+
+ if (M.getEndianness() == Module::LittleEndian &&
+ M.getPointerSize() == Module::Pointer64)
+ return 10; // Weak match
+ else if (M.getEndianness() != Module::AnyEndianness ||
+ M.getPointerSize() != Module::AnyPointerSize)
+ return 0; // Match for some other target
+
+ return X86_64_JITMatchQuality()/2;
+}
+
+extern "C" void LLVMInitializeX86TargetInfo() {
+ TargetRegistry::RegisterTarget(TheX86_32Target, "x86",
+ "32-bit X86: Pentium-Pro and above",
+ &X86_32_TripleMatchQuality,
+ &X86_32_ModuleMatchQuality,
+ &X86_32_JITMatchQuality);
+
+ TargetRegistry::RegisterTarget(TheX86_64Target, "x86-64",
+ "64-bit X86: EM64T and AMD64",
+ &X86_64_TripleMatchQuality,
+ &X86_64_ModuleMatchQuality,
+ &X86_64_JITMatchQuality);
+}