[flang] Allow all OSes in fir::CodeGenSpecifics::get

This allows all ELF operating systems to use target specifics tuned for Linux,
since they use mostly the same ABIs. If some triples are to excluded, it's
better done at the driver layer.

Reviewed By: emaste

Differential Revision: https://reviews.llvm.org/D135100

diff --git a/flang/lib/Optimizer/CodeGen/Target.cpp b/flang/lib/Optimizer/CodeGen/Target.cpp
index e220963..17cf3ca 100644 (file)
--- a/flang/lib/Optimizer/CodeGen/Target.cpp
+++ b/flang/lib/Optimizer/CodeGen/Target.cpp
@@ -343,72 +343,23 @@ fir::CodeGenSpecifics::get(mlir::MLIRContext *ctx, llvm::Triple &&trp,
   default:
     break;
   case llvm::Triple::ArchType::x86:
-    switch (trp.getOS()) {
-    default:
-      break;
-    case llvm::Triple::OSType::Linux:
-    case llvm::Triple::OSType::Darwin:
-    case llvm::Triple::OSType::MacOSX:
-    case llvm::Triple::OSType::Solaris:
-    case llvm::Triple::OSType::Win32:
-      return std::make_unique<TargetI386>(ctx, std::move(trp),
-                                          std::move(kindMap));
-    }
-    break;
+    return std::make_unique<TargetI386>(ctx, std::move(trp),
+                                        std::move(kindMap));
   case llvm::Triple::ArchType::x86_64:
-    switch (trp.getOS()) {
-    default:
-      break;
-    case llvm::Triple::OSType::Linux:
-    case llvm::Triple::OSType::Darwin:
-    case llvm::Triple::OSType::MacOSX:
-    case llvm::Triple::OSType::Solaris:
-    case llvm::Triple::OSType::Win32:
-      return std::make_unique<TargetX86_64>(ctx, std::move(trp),
-                                            std::move(kindMap));
-    }
-    break;
+    return std::make_unique<TargetX86_64>(ctx, std::move(trp),
+                                          std::move(kindMap));
   case llvm::Triple::ArchType::aarch64:
-    switch (trp.getOS()) {
-    default:
-      break;
-    case llvm::Triple::OSType::Linux:
-    case llvm::Triple::OSType::Darwin:
-    case llvm::Triple::OSType::MacOSX:
-    case llvm::Triple::OSType::Win32:
-      return std::make_unique<TargetAArch64>(ctx, std::move(trp),
-                                             std::move(kindMap));
-    }
-    break;
+    return std::make_unique<TargetAArch64>(ctx, std::move(trp),
+                                           std::move(kindMap));
   case llvm::Triple::ArchType::ppc64le:
-    switch (trp.getOS()) {
-    default:
-      break;
-    case llvm::Triple::OSType::Linux:
-      return std::make_unique<TargetPPC64le>(ctx, std::move(trp),
-                                             std::move(kindMap));
-    }
-    break;
-  case llvm::Triple::ArchType::sparc:
-    switch (trp.getOS()) {
-    default:
-      break;
-    case llvm::Triple::OSType::Linux:
-    case llvm::Triple::OSType::Solaris:
-      return std::make_unique<TargetSparc>(ctx, std::move(trp),
+    return std::make_unique<TargetPPC64le>(ctx, std::move(trp),
                                            std::move(kindMap));
-    }
-    break;
+  case llvm::Triple::ArchType::sparc:
+    return std::make_unique<TargetSparc>(ctx, std::move(trp),
+                                         std::move(kindMap));
   case llvm::Triple::ArchType::sparcv9:
-    switch (trp.getOS()) {
-    default:
-      break;
-    case llvm::Triple::OSType::Linux:
-    case llvm::Triple::OSType::Solaris:
-      return std::make_unique<TargetSparcV9>(ctx, std::move(trp),
-                                             std::move(kindMap));
-    }
-    break;
+    return std::make_unique<TargetSparcV9>(ctx, std::move(trp),
+                                           std::move(kindMap));
   }
   TODO(mlir::UnknownLoc::get(ctx), "target not implemented");
 }