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| author | Thomas Schwinge <thomas@codesourcery.com> | 2023-04-12 11:38:58 +0200 |
|---|---|---|
| committer | Thomas Schwinge <thomas@codesourcery.com> | 2023-04-14 11:57:11 +0200 |
| commit | 41c7e1d0a707f97327f097022e9e6fa7f6f13533 (patch) | |
| tree | b6103ed0c8c28925e6e1bc3cd30582b829b45ded /gcc/rust/backend | |
| parent | 37d4fa770ff751381db8f4fe225bf9e4ec22be56 (diff) | |
| download | gcc-41c7e1d0a707f97327f097022e9e6fa7f6f13533.zip gcc-41c7e1d0a707f97327f097022e9e6fa7f6f13533.tar.gz gcc-41c7e1d0a707f97327f097022e9e6fa7f6f13533.tar.bz2 | |
Rust: Make 'tree'-level 'MAIN_NAME_P' work
'gcc/tree.h':
#define main_identifier_node global_trees[TI_MAIN_IDENTIFIER]
#define MAIN_NAME_P(NODE) \
(IDENTIFIER_NODE_CHECK (NODE) == main_identifier_node)
..., which is not initialized by default, but has to be set up by every front
end individually. 'MAIN_NAME_P' enables certain code optimizations, but is
especially also relevant for back ends that emit additional program entry setup
code for 'main'.
gcc/rust/
* backend/rust-compile-base.cc (HIRCompileBase::compile_function):
Handle 'main' specially.
* rust-lang.cc (grs_langhook_init): Initialize
'main_identifier_node'.
Diffstat (limited to 'gcc/rust/backend')
| -rw-r--r-- | gcc/rust/backend/rust-compile-base.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/rust/backend/rust-compile-base.cc b/gcc/rust/backend/rust-compile-base.cc index 9650d1a..9b8a793 100644 --- a/gcc/rust/backend/rust-compile-base.cc +++ b/gcc/rust/backend/rust-compile-base.cc @@ -523,6 +523,9 @@ HIRCompileBase::compile_function ( // we don't mangle the main fn since we haven't implemented the main shim bool is_main_fn = fn_name.compare ("main") == 0; + if (is_main_fn) + /* So that 'MAIN_NAME_P' works. */ + ir_symbol_name = fn_name; std::string asm_name = fn_name; unsigned int flags = 0; |