[clang] Use LazyDetector for all toolchains. (#79073)

Use the LazyDetector also for the remaining toolchains to avoid unnecessarily checking for the Cuda and Rocm installations.

This fixes rdar://121397534.

6 files changed, 22 insertions, 19 deletions

diff --git a/clang/lib/Driver/ToolChains/Darwin.cpp b/clang/lib/Driver/ToolChains/Darwin.cpp
index 9050c545cf54..fae8ad1a958a 100644
--- a/clang/lib/Driver/ToolChains/Darwin.cpp
+++ b/clang/lib/Driver/ToolChains/Darwin.cpp
@@ -985,12 +985,12 @@ bool Darwin::hasBlocksRuntime() const {
 
 void Darwin::AddCudaIncludeArgs(const ArgList &DriverArgs,
                                 ArgStringList &CC1Args) const {
-  CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args);
+  CudaInstallation->AddCudaIncludeArgs(DriverArgs, CC1Args);
 }
 
 void Darwin::AddHIPIncludeArgs(const ArgList &DriverArgs,
                                ArgStringList &CC1Args) const {
-  RocmInstallation.AddHIPIncludeArgs(DriverArgs, CC1Args);
+  RocmInstallation->AddHIPIncludeArgs(DriverArgs, CC1Args);
 }
 
 // This is just a MachO name translation routine and there's no
@@ -3436,6 +3436,6 @@ SanitizerMask Darwin::getSupportedSanitizers() const {
 }
 
 void Darwin::printVerboseInfo(raw_ostream &OS) const {
-  CudaInstallation.print(OS);
-  RocmInstallation.print(OS);
+  CudaInstallation->print(OS);
+  RocmInstallation->print(OS);
 }
diff --git a/clang/lib/Driver/ToolChains/Darwin.h b/clang/lib/Driver/ToolChains/Darwin.h
index fda3b1a3639a..5e60b0841d6d 100644
--- a/clang/lib/Driver/ToolChains/Darwin.h
+++ b/clang/lib/Driver/ToolChains/Darwin.h
@@ -10,6 +10,7 @@
 #define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_DARWIN_H
 
 #include "Cuda.h"
+#include "LazyDetector.h"
 #include "ROCm.h"
 #include "clang/Basic/DarwinSDKInfo.h"
 #include "clang/Basic/LangOptions.h"
@@ -321,8 +322,8 @@ public:
   /// The target variant triple that was specified (if any).
   mutable std::optional<llvm::Triple> TargetVariantTriple;
 
-  CudaInstallationDetector CudaInstallation;
-  RocmInstallationDetector RocmInstallation;
+  LazyDetector<CudaInstallationDetector> CudaInstallation;
+  LazyDetector<RocmInstallationDetector> RocmInstallation;
 
 private:
   void AddDeploymentTarget(llvm::opt::DerivedArgList &Args) const;
diff --git a/clang/lib/Driver/ToolChains/MSVC.cpp b/clang/lib/Driver/ToolChains/MSVC.cpp
index 4914604f0a28..396522225158 100644
--- a/clang/lib/Driver/ToolChains/MSVC.cpp
+++ b/clang/lib/Driver/ToolChains/MSVC.cpp
@@ -495,24 +495,24 @@ bool MSVCToolChain::isPICDefaultForced() const {
 
 void MSVCToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs,
                                        ArgStringList &CC1Args) const {
-  CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args);
+  CudaInstallation->AddCudaIncludeArgs(DriverArgs, CC1Args);
 }
 
 void MSVCToolChain::AddHIPIncludeArgs(const ArgList &DriverArgs,
                                       ArgStringList &CC1Args) const {
-  RocmInstallation.AddHIPIncludeArgs(DriverArgs, CC1Args);
+  RocmInstallation->AddHIPIncludeArgs(DriverArgs, CC1Args);
 }
 
 void MSVCToolChain::AddHIPRuntimeLibArgs(const ArgList &Args,
                                          ArgStringList &CmdArgs) const {
   CmdArgs.append({Args.MakeArgString(StringRef("-libpath:") +
-                                     RocmInstallation.getLibPath()),
+                                     RocmInstallation->getLibPath()),
                   "amdhip64.lib"});
 }
 
 void MSVCToolChain::printVerboseInfo(raw_ostream &OS) const {
-  CudaInstallation.print(OS);
-  RocmInstallation.print(OS);
+  CudaInstallation->print(OS);
+  RocmInstallation->print(OS);
 }
 
 std::string
diff --git a/clang/lib/Driver/ToolChains/MSVC.h b/clang/lib/Driver/ToolChains/MSVC.h
index fb27c621f2d1..48369e030aad 100644
--- a/clang/lib/Driver/ToolChains/MSVC.h
+++ b/clang/lib/Driver/ToolChains/MSVC.h
@@ -11,6 +11,7 @@
 
 #include "AMDGPU.h"
 #include "Cuda.h"
+#include "LazyDetector.h"
 #include "clang/Driver/Compilation.h"
 #include "clang/Driver/Tool.h"
 #include "clang/Driver/ToolChain.h"
@@ -136,8 +137,8 @@ private:
   std::optional<llvm::StringRef> WinSdkDir, WinSdkVersion, WinSysRoot;
   std::string VCToolChainPath;
   llvm::ToolsetLayout VSLayout = llvm::ToolsetLayout::OlderVS;
-  CudaInstallationDetector CudaInstallation;
-  RocmInstallationDetector RocmInstallation;
+  LazyDetector<CudaInstallationDetector> CudaInstallation;
+  LazyDetector<RocmInstallationDetector> RocmInstallation;
 };
 
 } // end namespace toolchains
diff --git a/clang/lib/Driver/ToolChains/MinGW.cpp b/clang/lib/Driver/ToolChains/MinGW.cpp
index 18fc9d4b6807..067758c05e97 100644
--- a/clang/lib/Driver/ToolChains/MinGW.cpp
+++ b/clang/lib/Driver/ToolChains/MinGW.cpp
@@ -614,17 +614,17 @@ SanitizerMask toolchains::MinGW::getSupportedSanitizers() const {
 
 void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs,
                                            ArgStringList &CC1Args) const {
-  CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args);
+  CudaInstallation->AddCudaIncludeArgs(DriverArgs, CC1Args);
 }
 
 void toolchains::MinGW::AddHIPIncludeArgs(const ArgList &DriverArgs,
                                           ArgStringList &CC1Args) const {
-  RocmInstallation.AddHIPIncludeArgs(DriverArgs, CC1Args);
+  RocmInstallation->AddHIPIncludeArgs(DriverArgs, CC1Args);
 }
 
 void toolchains::MinGW::printVerboseInfo(raw_ostream &OS) const {
-  CudaInstallation.print(OS);
-  RocmInstallation.print(OS);
+  CudaInstallation->print(OS);
+  RocmInstallation->print(OS);
 }
 
 // Include directories for various hosts:
diff --git a/clang/lib/Driver/ToolChains/MinGW.h b/clang/lib/Driver/ToolChains/MinGW.h
index 75d629d5d1cb..a9963d8d06c2 100644
--- a/clang/lib/Driver/ToolChains/MinGW.h
+++ b/clang/lib/Driver/ToolChains/MinGW.h
@@ -11,6 +11,7 @@
 
 #include "Cuda.h"
 #include "Gnu.h"
+#include "LazyDetector.h"
 #include "ROCm.h"
 #include "clang/Driver/Tool.h"
 #include "clang/Driver/ToolChain.h"
@@ -102,8 +103,8 @@ protected:
   Tool *buildAssembler() const override;
 
 private:
-  CudaInstallationDetector CudaInstallation;
-  RocmInstallationDetector RocmInstallation;
+  LazyDetector<CudaInstallationDetector> CudaInstallation;
+  LazyDetector<RocmInstallationDetector> RocmInstallation;
 
   std::string Base;
   std::string GccLibDir;