Add llvmInlineAsm node

InlineAsm node does not support memory clobbers.

gcc/rust/ChangeLog:

	* ast/rust-ast-collector.cc (TokenCollector::visit): Make visitor
	unreachable.
	* ast/rust-ast-collector.h: Add visit for LlvmInlineAsmNode.
	* ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Add visit
	function for the default ast visitor.
	* ast/rust-ast-visitor.h: Add function prototype.
	* ast/rust-ast.cc (LlvmInlineAsm::accept_vis): Add accept_vis to
	LlvmInlineAsm node.
	* ast/rust-ast.h: Add LlvmInlineAsm node kind.
	* ast/rust-expr.h (class LlvmInlineAsm): Add LlvmInlineAsm node.
	* expand/rust-derive.h: Add visit function for LlvmInlineAsm node.
	* expand/rust-macro-builtins-asm.cc (MacroBuiltin::llvm_asm_handler):
	Add handler for llvm inline assembly nodes.
	(parse_llvm_asm): Add function to parse llvm assembly nodes.
	* expand/rust-macro-builtins-asm.h (parse_llvm_asm): Add function
	prototypes.
	* expand/rust-macro-builtins.cc (inline_llvm_asm_maker): Add macro
	transcriber.
	* expand/rust-macro-builtins.h: Add transcriber function prototype.
	* hir/rust-ast-lower-base.cc (ASTLoweringBase::visit): Add visit
	function for LlvmInlineAsm node.
	* hir/rust-ast-lower-base.h: Add visit function prototype.
	* resolve/rust-ast-resolve-base.cc (ResolverBase::visit): Add visit
	function for LlvmInlineAsm node.
	* resolve/rust-ast-resolve-base.h: Add visit function prototype.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/gcc/rust/expand/rust-macro-builtins.cc b/gcc/rust/expand/rust-macro-builtins.cc
index d8013c1..3d64f1d 100644
--- a/gcc/rust/expand/rust-macro-builtins.cc
+++ b/gcc/rust/expand/rust-macro-builtins.cc
@@ -103,6 +103,15 @@ inline_asm_maker (AST::AsmKind global_asm)
   };
 }
 
+AST::MacroTranscriberFunc
+inline_llvm_asm_maker (AST::AsmKind global_asm)
+{
+  return [global_asm] (location_t loc, AST::MacroInvocData &invoc,
+		       AST::InvocKind semicolon) {
+    return MacroBuiltin::llvm_asm_handler (loc, invoc, semicolon, global_asm);
+  };
+}
+
 std::unordered_map<std::string, AST::MacroTranscriberFunc>
   MacroBuiltin::builtin_transcribers = {
     {"assert", MacroBuiltin::assert_handler},
@@ -121,7 +130,7 @@ std::unordered_map<std::string, AST::MacroTranscriberFunc>
     {"format_args_nl", format_args_maker (AST::FormatArgs::Newline::Yes)},
     {"asm", inline_asm_maker (AST::AsmKind::Inline)},
     // FIXME: Is that okay?
-    {"llvm_asm", inline_asm_maker (AST::AsmKind::Inline)},
+    {"llvm_asm", inline_llvm_asm_maker (AST::AsmKind::Inline)},
     {"global_asm", inline_asm_maker (AST::AsmKind::Global)},
     {"option_env", MacroBuiltin::option_env_handler},
     /* Unimplemented macro builtins */