Simplify JIT target selection.

 - Instead of requiring targets to define a JIT quality match function, we just
   have them specify if they support a JIT.

 - Target selection for the JIT just gets the host triple and looks for the best
   target which matches the triple and has a JIT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77060 91177308-0d34-0410-b5e6-96231b3b80d8

14 files changed, 27 insertions, 139 deletions

diff --git a/lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp b/lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp
index d709463..a9f99e0 100644
--- a/lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp
+++ b/lib/Target/ARM/TargetInfo/ARMTargetInfo.cpp
@@ -14,13 +14,6 @@ using namespace llvm;
 
 Target llvm::TheARMTarget;
 
-static unsigned ARM_JITMatchQuality() {
-#if defined(__arm__)
-  return 10;
-#endif
-  return 0;
-}
-
 static unsigned ARM_TripleMatchQuality(const std::string &TT) {
   // Match arm-foo-bar, as well as things like armv5blah-*
   if (TT.size() >= 4 &&
@@ -45,18 +38,11 @@ static unsigned ARM_ModuleMatchQuality(const Module &M) {
            M.getPointerSize() != Module::AnyPointerSize)
     return 0;                                    // Match for some other target
 
-  return ARM_JITMatchQuality()/2;
+  return 0;
 }
 
 Target llvm::TheThumbTarget;
 
-static unsigned Thumb_JITMatchQuality() {
-#if defined(__thumb__)
-  return 10;
-#endif
-  return 0;
-}
-
 static unsigned Thumb_TripleMatchQuality(const std::string &TT) {
   // Match thumb-foo-bar, as well as things like thumbv5blah-*
   if (TT.size() >= 6 &&
@@ -81,7 +67,7 @@ static unsigned Thumb_ModuleMatchQuality(const Module &M) {
            M.getPointerSize() != Module::AnyPointerSize)
     return 0;                                    // Match for some other target
 
-  return Thumb_JITMatchQuality()/2;
+  return 0;
 }
 
 extern "C" void LLVMInitializeARMTargetInfo() { 
@@ -89,11 +75,11 @@ extern "C" void LLVMInitializeARMTargetInfo() {
                                   "ARM",
                                   &ARM_TripleMatchQuality,
                                   &ARM_ModuleMatchQuality,
-                                  &ARM_JITMatchQuality);
+                                 /*HasJIT=*/true);
 
   TargetRegistry::RegisterTarget(TheThumbTarget, "thumb",    
                                   "Thumb",
                                   &Thumb_TripleMatchQuality,
                                   &Thumb_ModuleMatchQuality,
-                                  &Thumb_JITMatchQuality);
+                                 /*HasJIT=*/true);
 }
diff --git a/lib/Target/Alpha/TargetInfo/AlphaTargetInfo.cpp b/lib/Target/Alpha/TargetInfo/AlphaTargetInfo.cpp
index 60f53e3..f148506 100644
--- a/lib/Target/Alpha/TargetInfo/AlphaTargetInfo.cpp
+++ b/lib/Target/Alpha/TargetInfo/AlphaTargetInfo.cpp
@@ -14,14 +14,6 @@ using namespace llvm;
 
 llvm::Target llvm::TheAlphaTarget;
 
-static unsigned Alpha_JITMatchQuality() {
-#ifdef __alpha
-  return 10;
-#else
-  return 0;
-#endif
-}
-
 static unsigned Alpha_TripleMatchQuality(const std::string &TT) {
   // We strongly match "alpha*".
   if (TT.size() >= 5 && TT[0] == 'a' && TT[1] == 'l' && TT[2] == 'p' &&
@@ -46,7 +38,7 @@ static unsigned Alpha_ModuleMatchQuality(const Module &M) {
            M.getPointerSize() != Module::AnyPointerSize)
     return 0;                                    // Match for some other target
 
-  return Alpha_JITMatchQuality()/2;
+  return 0;
 }
 
 extern "C" void LLVMInitializeAlphaTargetInfo() { 
@@ -54,5 +46,5 @@ extern "C" void LLVMInitializeAlphaTargetInfo() {
                                   "Alpha [experimental]",
                                   &Alpha_TripleMatchQuality,
                                   &Alpha_ModuleMatchQuality,
-                                  &Alpha_JITMatchQuality);
+                                  /*HasJIT=*/true);
 }
diff --git a/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp b/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp
index b86f4b2..588833b 100644
--- a/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp
+++ b/lib/Target/CBackend/TargetInfo/CBackendTargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheCBackendTarget;
 
-static unsigned CBackend_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned CBackend_TripleMatchQuality(const std::string &TT) {
   // This class always works, but must be requested explicitly on 
   // llc command line.
@@ -34,6 +30,5 @@ extern "C" void LLVMInitializeCBackendTargetInfo() {
   TargetRegistry::RegisterTarget(TheCBackendTarget, "c",
                                   "C backend",
                                   &CBackend_TripleMatchQuality,
-                                  &CBackend_ModuleMatchQuality,
-                                  &CBackend_JITMatchQuality);
+                                  &CBackend_ModuleMatchQuality);
 }
diff --git a/lib/Target/CellSPU/TargetInfo/CellSPUTargetInfo.cpp b/lib/Target/CellSPU/TargetInfo/CellSPUTargetInfo.cpp
index bd0e415..04171ec 100644
--- a/lib/Target/CellSPU/TargetInfo/CellSPUTargetInfo.cpp
+++ b/lib/Target/CellSPU/TargetInfo/CellSPUTargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheCellSPUTarget;
 
-static unsigned CellSPU_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned CellSPU_TripleMatchQuality(const std::string &TT) {
   // We strongly match "spu-*" or "cellspu-*".
   if ((TT.size() == 3 && std::string(TT.begin(), TT.begin()+3) == "spu") ||
@@ -44,6 +40,5 @@ extern "C" void LLVMInitializeCellSPUTargetInfo() {
   TargetRegistry::RegisterTarget(TheCellSPUTarget, "cellspu",
                                   "STI CBEA Cell SPU [experimental]",
                                   &CellSPU_TripleMatchQuality,
-                                  &CellSPU_ModuleMatchQuality,
-                                  &CellSPU_JITMatchQuality);
+                                  &CellSPU_ModuleMatchQuality);
 }
diff --git a/lib/Target/CppBackend/TargetInfo/CppBackendTargetInfo.cpp b/lib/Target/CppBackend/TargetInfo/CppBackendTargetInfo.cpp
index e155b7b..d5b64f5 100644
--- a/lib/Target/CppBackend/TargetInfo/CppBackendTargetInfo.cpp
+++ b/lib/Target/CppBackend/TargetInfo/CppBackendTargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheCppBackendTarget;
 
-static unsigned CppBackend_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned CppBackend_TripleMatchQuality(const std::string &TT) {
   // This class always works, but shouldn't be the default in most cases.
   return 1;
@@ -32,6 +28,5 @@ extern "C" void LLVMInitializeCppBackendTargetInfo() {
   TargetRegistry::RegisterTarget(TheCppBackendTarget, "cpp",    
                                   "C++ backend",
                                   &CppBackend_TripleMatchQuality,
-                                  &CppBackend_ModuleMatchQuality,
-                                  &CppBackend_JITMatchQuality);
+                                  &CppBackend_ModuleMatchQuality);
 }
diff --git a/lib/Target/MSIL/TargetInfo/MSILTargetInfo.cpp b/lib/Target/MSIL/TargetInfo/MSILTargetInfo.cpp
index e50d607..07de726 100644
--- a/lib/Target/MSIL/TargetInfo/MSILTargetInfo.cpp
+++ b/lib/Target/MSIL/TargetInfo/MSILTargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheMSILTarget;
 
-static unsigned MSIL_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned MSIL_TripleMatchQuality(const std::string &TT) {
   // This class always works, but shouldn't be the default in most cases.
   return 1;
@@ -32,6 +28,5 @@ extern "C" void LLVMInitializeMSILTargetInfo() {
   TargetRegistry::RegisterTarget(TheMSILTarget, "msil",    
                                   "MSIL backend",
                                   &MSIL_TripleMatchQuality,
-                                  &MSIL_ModuleMatchQuality,
-                                  &MSIL_JITMatchQuality);
+                                  &MSIL_ModuleMatchQuality);
 }
diff --git a/lib/Target/MSP430/TargetInfo/MSP430TargetInfo.cpp b/lib/Target/MSP430/TargetInfo/MSP430TargetInfo.cpp
index 8b3e1f4..eb3b865 100644
--- a/lib/Target/MSP430/TargetInfo/MSP430TargetInfo.cpp
+++ b/lib/Target/MSP430/TargetInfo/MSP430TargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheMSP430Target;
 
-static unsigned MSP430_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned MSP430_TripleMatchQuality(const std::string &TT) {
   // We strongly match msp430
   if (TT.size() >= 6 && TT[0] == 'm' && TT[1] == 's' && TT[2] == 'p' &&
@@ -42,6 +38,5 @@ extern "C" void LLVMInitializeMSP430TargetInfo() {
   TargetRegistry::RegisterTarget(TheMSP430Target, "msp430",    
                                   "MSP430 [experimental]",
                                   &MSP430_TripleMatchQuality,
-                                  &MSP430_ModuleMatchQuality,
-                                  &MSP430_JITMatchQuality);
+                                  &MSP430_ModuleMatchQuality);
 }
diff --git a/lib/Target/Mips/TargetInfo/MipsTargetInfo.cpp b/lib/Target/Mips/TargetInfo/MipsTargetInfo.cpp
index 1188a74..35cbf8b 100644
--- a/lib/Target/Mips/TargetInfo/MipsTargetInfo.cpp
+++ b/lib/Target/Mips/TargetInfo/MipsTargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheMipsTarget;
 
-static unsigned Mips_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned Mips_TripleMatchQuality(const std::string &TT) {
   // We strongly match "mips*-*".
   if (TT.size() >= 5 && std::string(TT.begin(), TT.begin()+5) == "mips-")
@@ -43,10 +39,6 @@ static unsigned Mips_ModuleMatchQuality(const Module &M) {
 
 Target llvm::TheMipselTarget;
 
-static unsigned Mipsel_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned Mipsel_TripleMatchQuality(const std::string &TT) {
   // We strongly match "mips*el-*".
   if (TT.size() >= 7 && std::string(TT.begin(), TT.begin()+7) == "mipsel-")
@@ -77,12 +69,10 @@ extern "C" void LLVMInitializeMipsTargetInfo() {
   TargetRegistry::RegisterTarget(TheMipsTarget, "mips",
                                   "Mips",
                                   &Mips_TripleMatchQuality,
-                                  &Mips_ModuleMatchQuality,
-                                  &Mips_JITMatchQuality);
+                                  &Mips_ModuleMatchQuality);
 
   TargetRegistry::RegisterTarget(TheMipselTarget, "mipsel",
                                   "Mipsel",
                                   &Mipsel_TripleMatchQuality,
-                                  &Mipsel_ModuleMatchQuality,
-                                  &Mipsel_JITMatchQuality);
+                                  &Mipsel_ModuleMatchQuality);
 }
diff --git a/lib/Target/PIC16/TargetInfo/PIC16TargetInfo.cpp b/lib/Target/PIC16/TargetInfo/PIC16TargetInfo.cpp
index 20bbba8..2a88fe5 100644
--- a/lib/Target/PIC16/TargetInfo/PIC16TargetInfo.cpp
+++ b/lib/Target/PIC16/TargetInfo/PIC16TargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::ThePIC16Target;
 
-static unsigned PIC16_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned PIC16_TripleMatchQuality(const std::string &TT) {
   return 0;
 }
@@ -28,10 +24,6 @@ static unsigned PIC16_ModuleMatchQuality(const Module &M) {
 
 Target llvm::TheCooperTarget;
 
-static unsigned Cooper_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned Cooper_TripleMatchQuality(const std::string &TT) {
   return 0;
 }
@@ -44,12 +36,10 @@ extern "C" void LLVMInitializePIC16TargetInfo() {
   TargetRegistry::RegisterTarget(ThePIC16Target, "pic16",
                                   "PIC16 14-bit [experimental]",
                                   &PIC16_TripleMatchQuality,
-                                  &PIC16_ModuleMatchQuality,
-                                  &PIC16_JITMatchQuality);
+                                  &PIC16_ModuleMatchQuality);
 
   TargetRegistry::RegisterTarget(TheCooperTarget, "cooper",    
                                   "PIC16 Cooper [experimental]",
                                   &Cooper_TripleMatchQuality,
-                                  &Cooper_ModuleMatchQuality,
-                                  &Cooper_JITMatchQuality);
+                                  &Cooper_ModuleMatchQuality);
 }
diff --git a/lib/Target/PowerPC/TargetInfo/PowerPCTargetInfo.cpp b/lib/Target/PowerPC/TargetInfo/PowerPCTargetInfo.cpp
index ca1f490..3d25dad 100644
--- a/lib/Target/PowerPC/TargetInfo/PowerPCTargetInfo.cpp
+++ b/lib/Target/PowerPC/TargetInfo/PowerPCTargetInfo.cpp
@@ -14,14 +14,6 @@ using namespace llvm;
 
 Target llvm::ThePPC32Target;
 
-static unsigned PPC32_JITMatchQuality() {
-#if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER) || defined(__PPC__)
-  if (sizeof(void*) == 4)
-    return 10;
-#endif
-  return 0;
-}
-
 static unsigned PPC32_TripleMatchQuality(const std::string &TT) {
   // We strongly match "powerpc-*".
   if (TT.size() >= 8 && std::string(TT.begin(), TT.begin()+8) == "powerpc-")
@@ -45,19 +37,11 @@ static unsigned PPC32_ModuleMatchQuality(const Module &M) {
            M.getPointerSize() != Module::AnyPointerSize)
     return 0;                                    // Match for some other target
   
-  return PPC32_JITMatchQuality()/2;
+  return 0;
 }
 
 Target llvm::ThePPC64Target;
 
-static unsigned PPC64_JITMatchQuality() {
-#if defined(__POWERPC__) || defined (__ppc__) || defined(_POWER) || defined(__PPC__)
-  if (sizeof(void*) == 8)
-    return 10;
-#endif
-  return 0;
-}
-
 static unsigned PPC64_TripleMatchQuality(const std::string &TT) {
   // We strongly match "powerpc64-*".
   if (TT.size() >= 10 && std::string(TT.begin(), TT.begin()+10) == "powerpc64-")
@@ -81,7 +65,7 @@ static unsigned PPC64_ModuleMatchQuality(const Module &M) {
            M.getPointerSize() != Module::AnyPointerSize)
     return 0;                                    // Match for some other target
   
-  return PPC64_JITMatchQuality()/2;
+  return 0;
 }
 
 extern "C" void LLVMInitializePowerPCTargetInfo() { 
@@ -89,11 +73,11 @@ extern "C" void LLVMInitializePowerPCTargetInfo() {
                                   "PowerPC 32",
                                   &PPC32_TripleMatchQuality,
                                   &PPC32_ModuleMatchQuality,
-                                  &PPC32_JITMatchQuality);
+                                 /*HasJIT=*/true);
 
   TargetRegistry::RegisterTarget(ThePPC64Target, "ppc64",
                                   "PowerPC 64",
                                   &PPC64_TripleMatchQuality,
                                   &PPC64_ModuleMatchQuality,
-                                  &PPC64_JITMatchQuality);
+                                 /*HasJIT=*/true);
 }
diff --git a/lib/Target/Sparc/TargetInfo/SparcTargetInfo.cpp b/lib/Target/Sparc/TargetInfo/SparcTargetInfo.cpp
index 131bdcc..a2f1e5d 100644
--- a/lib/Target/Sparc/TargetInfo/SparcTargetInfo.cpp
+++ b/lib/Target/Sparc/TargetInfo/SparcTargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheSparcTarget;
 
-static unsigned Sparc_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned Sparc_TripleMatchQuality(const std::string &TT) {
   if (TT.size() >= 6 && std::string(TT.begin(), TT.begin()+6) == "sparc-")
     return 20;
@@ -57,6 +53,5 @@ extern "C" void LLVMInitializeSparcTargetInfo() {
   TargetRegistry::RegisterTarget(TheSparcTarget, "sparc",
                                   "Sparc",
                                   &Sparc_TripleMatchQuality,
-                                  &Sparc_ModuleMatchQuality,
-                                  &Sparc_JITMatchQuality);
+                                  &Sparc_ModuleMatchQuality);
 }
diff --git a/lib/Target/SystemZ/TargetInfo/SystemZTargetInfo.cpp b/lib/Target/SystemZ/TargetInfo/SystemZTargetInfo.cpp
index 09cb9c3..49c8e19 100644
--- a/lib/Target/SystemZ/TargetInfo/SystemZTargetInfo.cpp
+++ b/lib/Target/SystemZ/TargetInfo/SystemZTargetInfo.cpp
@@ -1,4 +1,4 @@
-//===-- SystemZTargetInfo.cpp - SystemZ Target Implementation -----------------===//
+//===-- SystemZTargetInfo.cpp - SystemZ Target Implementation -------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheSystemZTarget;
 
-static unsigned SystemZ_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned SystemZ_TripleMatchQuality(const std::string &TT) {
   // We strongly match s390x
   if (TT.size() >= 5 && TT[0] == 's' && TT[1] == '3' && TT[2] == '9' &&
@@ -40,6 +36,5 @@ extern "C" void LLVMInitializeSystemZTargetInfo() {
   TargetRegistry::RegisterTarget(TheSystemZTarget, "systemz",
                                  "SystemZ",
                                  &SystemZ_TripleMatchQuality,
-                                 &SystemZ_ModuleMatchQuality,
-                                 &SystemZ_JITMatchQuality);
+                                 &SystemZ_ModuleMatchQuality);
 }
diff --git a/lib/Target/X86/TargetInfo/X86TargetInfo.cpp b/lib/Target/X86/TargetInfo/X86TargetInfo.cpp
index a130e4e..6201002 100644
--- a/lib/Target/X86/TargetInfo/X86TargetInfo.cpp
+++ b/lib/Target/X86/TargetInfo/X86TargetInfo.cpp
@@ -14,13 +14,6 @@ using namespace llvm;
 
 Target llvm::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' &&
@@ -45,18 +38,11 @@ static unsigned X86_32_ModuleMatchQuality(const Module &M) {
            M.getPointerSize() != Module::AnyPointerSize)
     return 0;                                    // Match for some other target
 
-  return X86_32_JITMatchQuality()/2;
+  return 0;
 }
 
 Target llvm::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' &&
@@ -81,7 +67,7 @@ static unsigned X86_64_ModuleMatchQuality(const Module &M) {
            M.getPointerSize() != Module::AnyPointerSize)
     return 0;                                    // Match for some other target
 
-  return X86_64_JITMatchQuality()/2;
+  return 0;
 }
 
 extern "C" void LLVMInitializeX86TargetInfo() { 
@@ -89,11 +75,11 @@ extern "C" void LLVMInitializeX86TargetInfo() {
                                   "32-bit X86: Pentium-Pro and above",
                                   &X86_32_TripleMatchQuality,
                                   &X86_32_ModuleMatchQuality,
-                                  &X86_32_JITMatchQuality);
+                                  /*HasJIT=*/true);
 
   TargetRegistry::RegisterTarget(TheX86_64Target, "x86-64",    
                                   "64-bit X86: EM64T and AMD64",
                                   &X86_64_TripleMatchQuality,
                                   &X86_64_ModuleMatchQuality,
-                                  &X86_64_JITMatchQuality);
+                                  /*HasJIT=*/true);
 }
diff --git a/lib/Target/XCore/TargetInfo/XCoreTargetInfo.cpp b/lib/Target/XCore/TargetInfo/XCoreTargetInfo.cpp
index 9dec792..48ad484 100644
--- a/lib/Target/XCore/TargetInfo/XCoreTargetInfo.cpp
+++ b/lib/Target/XCore/TargetInfo/XCoreTargetInfo.cpp
@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheXCoreTarget;
 
-static unsigned XCore_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned XCore_TripleMatchQuality(const std::string &TT) {
   if (TT.size() >= 6 && std::string(TT.begin(), TT.begin()+6) == "xcore-")
     return 20;
@@ -38,6 +34,5 @@ extern "C" void LLVMInitializeXCoreTargetInfo() {
   TargetRegistry::RegisterTarget(TheXCoreTarget, "xcore",
                                   "XCore",
                                   &XCore_TripleMatchQuality,
-                                  &XCore_ModuleMatchQuality,
-                                  &XCore_JITMatchQuality);
+                                  &XCore_ModuleMatchQuality);
 }