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-rw-r--r--gcc/rust/lang.opt42
-rw-r--r--gcc/rust/rust-session-manager.cc36
-rw-r--r--gcc/rust/rust-session-manager.h25
-rw-r--r--gcc/testsuite/rust/compile/frust-compile-until.rs7
4 files changed, 107 insertions, 3 deletions
diff --git a/gcc/rust/lang.opt b/gcc/rust/lang.opt
index 1f6855e..bb3b998 100644
--- a/gcc/rust/lang.opt
+++ b/gcc/rust/lang.opt
@@ -113,6 +113,48 @@ Rust Joined RejectNegative
o
Rust Joined Separate
+
+frust-compile-until=
+Rust Joined RejectNegative Enum(frust_compile_until) Var(flag_rust_compile_until)
+-frust-compile-until=[ast|attributecheck|expansion|nameresolution|lowering|typecheck|privacy|unsafety|const|copimlation|end] When to stop in the pipeline when compiling Rust code
+
+Enum
+Name(frust_compile_until) Type(int) UnknownError(unknown rust compile-until %qs)
+
+EnumValue
+Enum(frust_compile_until) String(ast) Value(0)
+
+EnumValue
+Enum(frust_compile_until) String(attributecheck) Value(1)
+
+EnumValue
+Enum(frust_compile_until) String(expansion) Value(2)
+
+EnumValue
+Enum(frust_compile_until) String(nameresolution) Value(3)
+
+EnumValue
+Enum(frust_compile_until) String(lowering) Value(4)
+
+EnumValue
+Enum(frust_compile_until) String(typecheck) Value(5)
+
+EnumValue
+Enum(frust_compile_until) String(privacy) Value(6)
+
+EnumValue
+Enum(frust_compile_until) String(unsafety) Value(7)
+
+EnumValue
+Enum(frust_compile_until) String(const) Value(8)
+
+EnumValue
+Enum(frust_compile_until) String(compilation) Value(9)
+
+EnumValue
+Enum(frust_compile_until) String(end) Value(10)
+
+
; Documented in common.opt
; This comment is to ensure we retain the blank line above.
diff --git a/gcc/rust/rust-session-manager.cc b/gcc/rust/rust-session-manager.cc
index fc66b69..a6291a3 100644
--- a/gcc/rust/rust-session-manager.cc
+++ b/gcc/rust/rust-session-manager.cc
@@ -223,7 +223,9 @@ Session::handle_option (
case OPT_frust_edition_:
options.set_edition (flag_rust_edition);
break;
-
+ case OPT_frust_compile_until_:
+ options.set_compile_step (flag_rust_compile_until);
+ break;
case OPT_frust_metadata_output_:
options.set_metadata_output (arg);
break;
@@ -425,6 +427,8 @@ Session::compile_crate (const char *filename)
return;
}
+ auto last_step = options.get_compile_until ();
+
// parse file here
/* create lexer and parser - these are file-specific and so aren't instance
* variables */
@@ -481,7 +485,7 @@ Session::compile_crate (const char *filename)
// If -fsyntax-only was passed, we can just skip the remaining passes.
// Parsing errors are already emitted in `parse_crate()`
- if (flag_syntax_only)
+ if (flag_syntax_only || last_step == CompileOptions::CompileStep::Ast)
return;
// register plugins pipeline stage
@@ -500,8 +504,14 @@ Session::compile_crate (const char *filename)
// TODO: what do I dump here? injected crate names?
}
+ if (last_step == CompileOptions::CompileStep::AttributeCheck)
+ return;
+
Analysis::AttributeChecker ().go (parsed_crate);
+ if (last_step == CompileOptions::CompileStep::Expansion)
+ return;
+
// expansion pipeline stage
expansion (parsed_crate);
rust_debug ("\033[0;31mSUCCESSFULLY FINISHED EXPANSION \033[0m");
@@ -514,6 +524,9 @@ Session::compile_crate (const char *filename)
rust_debug ("END POST-EXPANSION AST DUMP");
}
+ if (last_step == CompileOptions::CompileStep::NameResolution)
+ return;
+
// resolution pipeline stage
Resolver::NameResolution::Resolve (parsed_crate);
if (options.dump_option_enabled (CompileOptions::RESOLUTION_DUMP))
@@ -524,6 +537,9 @@ Session::compile_crate (const char *filename)
if (saw_errors ())
return;
+ if (last_step == CompileOptions::CompileStep::Lowering)
+ return;
+
// lower AST to HIR
std::unique_ptr<HIR::Crate> lowered
= HIR::ASTLowering::Resolve (parsed_crate);
@@ -541,6 +557,9 @@ Session::compile_crate (const char *filename)
dump_hir_pretty (hir);
}
+ if (last_step == CompileOptions::CompileStep::TypeCheck)
+ return;
+
// type resolve
Resolver::TypeResolution::Resolve (hir);
if (options.dump_option_enabled (CompileOptions::TYPE_RESOLUTION_DUMP))
@@ -551,17 +570,30 @@ Session::compile_crate (const char *filename)
if (saw_errors ())
return;
+ if (last_step == CompileOptions::CompileStep::Privacy)
+ return;
+
// Various HIR error passes. The privacy pass happens before the unsafe checks
Privacy::Resolver::resolve (hir);
if (saw_errors ())
return;
+ if (last_step == CompileOptions::CompileStep::Unsafety)
+ return;
+
HIR::UnsafeChecker ().go (hir);
+
+ if (last_step == CompileOptions::CompileStep::Const)
+ return;
+
HIR::ConstChecker ().go (hir);
if (saw_errors ())
return;
+ if (last_step == CompileOptions::CompileStep::Compilation)
+ return;
+
// do compile to gcc generic
Compile::Context ctx (backend);
Compile::CompileCrate::Compile (hir, &ctx);
diff --git a/gcc/rust/rust-session-manager.h b/gcc/rust/rust-session-manager.h
index b3724c5..6ecd513 100644
--- a/gcc/rust/rust-session-manager.h
+++ b/gcc/rust/rust-session-manager.h
@@ -199,6 +199,22 @@ struct CompileOptions
} edition
= Edition::E2015;
+ enum class CompileStep
+ {
+ Ast,
+ AttributeCheck,
+ Expansion,
+ NameResolution,
+ Lowering,
+ TypeCheck,
+ Privacy,
+ Unsafety,
+ Const,
+ Compilation,
+ End,
+ } compile_until
+ = CompileStep::End;
+
bool dump_option_enabled (DumpOption option) const
{
return dump_options.find (option) != dump_options.end ();
@@ -239,7 +255,14 @@ struct CompileOptions
edition = static_cast<Edition> (raw_edition);
}
- const Edition &get_edition () { return edition; }
+ const Edition &get_edition () const { return edition; }
+
+ void set_compile_step (int raw_step)
+ {
+ compile_until = static_cast<CompileStep> (raw_step);
+ }
+
+ const CompileStep &get_compile_until () const { return compile_until; }
void set_metadata_output (const std::string &path)
{
diff --git a/gcc/testsuite/rust/compile/frust-compile-until.rs b/gcc/testsuite/rust/compile/frust-compile-until.rs
new file mode 100644
index 0000000..7bb3932
--- /dev/null
+++ b/gcc/testsuite/rust/compile/frust-compile-until.rs
@@ -0,0 +1,7 @@
+// { dg-additional-options "-frust-compile-until=unsafety" }
+
+unsafe fn foo() {}
+
+fn main() {
+ foo()
+}