Merge branch 'halide:main' into fix-shuffle-bug

Author: mcourteaux

CMakeLists.txt

@@ -196,7 +196,7 @@ option(THREADS_PREFER_PTHREAD_FLAG "When enabled, prefer to use the -pthread fla
 find_package(Threads REQUIRED)
 
 ## LLVM
-find_package(Halide_LLVM 18...20 REQUIRED
+find_package(Halide_LLVM 18...99 REQUIRED  # Use 99 to fake a minimum-only constraint
              COMPONENTS WebAssembly X86
              OPTIONAL_COMPONENTS AArch64 ARM Hexagon NVPTX PowerPC RISCV)
 

src/CodeGen_LLVM.cpp

@@ -748,7 +748,7 @@ Value *CodeGen_LLVM::register_destructor(llvm::Function *destructor_fn, Value *o
     IRBuilderBase::InsertPoint here = builder->saveIP();
     BasicBlock *dtors = get_destructor_block();
 
-    builder->SetInsertPoint(dtors->getFirstNonPHI());
+    builder->SetInsertPoint(dtors->getFirstNonPHIIt());
 
     PHINode *error_code = dyn_cast<PHINode>(dtors->begin());
     internal_assert(error_code) << "The destructor block is supposed to start with a phi node\n";

src/CodeGen_PTX_Dev.cpp

@@ -156,6 +156,8 @@ void CodeGen_PTX_Dev::add_kernel(Stmt stmt,
         }
     }
 
+    function->setCallingConv(llvm::CallingConv::PTX_Kernel);
+
     // Make the initial basic block
     entry_block = BasicBlock::Create(*context, "entry", function);
     builder->SetInsertPoint(entry_block);