fix bazel triple errors

Signed-off-by: Bangtian Liu <liubangtian@gmail.com>

Author: bangtianliu

compiler/plugins/target/CUDA/CUDATarget.cpp

@@ -566,7 +566,7 @@ class CUDATargetBackend final : public TargetBackend {
           return variantOp.emitError() << "cannot initialize target triple";
         }
         targetMachine.reset(target->createTargetMachine(
-            triple.str(), targetArch, targetFeatures, {}, {}));
+            triple, targetArch, targetFeatures, {}, {}));
         if (targetMachine == nullptr) {
           return variantOp.emitError() << "cannot initialize target machine";
         }

compiler/plugins/target/LLVMCPU/LLVMTargetOptions.cpp

@@ -398,8 +398,9 @@ createTargetMachine(const LLVMTarget &target) {
       llvm::TargetRegistry::lookupTarget(target.getTriple(), errorMessage);
   if (!llvmTarget)
     return nullptr;
+  llvm::Triple triple(target.getTriple());
   std::unique_ptr<llvm::TargetMachine> machine(llvmTarget->createTargetMachine(
-      target.getTriple(), target.getCpu() /* cpu e.g k8 */,
+      triple, target.getCpu() /* cpu e.g k8 */,
       target.getCpuFeatures() /* cpu features e.g avx512f */,
       target.llvmTargetOptions, llvm::Reloc::Model::PIC_, {},
       target.codeGenOptLevel,