From a7c8f7ee34334edec4b57db547de1c8b5d0ad31d Mon Sep 17 00:00:00 2001 From: Arthur Cohen Date: Tue, 25 Oct 2022 11:24:10 +0200 Subject: gccrs: intrinsics: Add early implementation for atomic_store_{seqcst, relaxed, release} gcc/rust/ChangeLog: * backend/rust-builtins.cc (BuiltinsContext::setup_atomic_fns): New function. (BuiltinsContext::setup): Call `setup_atomic_fns`. * backend/rust-builtins.h: Declare `setup_atomic_fns`. * backend/rust-compile-intrinsic.cc (atomic_store_handler_inner): New function. (atomic_store_handler): New handler. (make_unsigned_long_tree): Add helper around making unsigned long trees. (prefetch_data_handler): Use `make_unsigned_long_tree`. (build_atomic_builtin_name): New function. gcc/testsuite/ChangeLog: * rust/compile/torture/intrinsics-4.rs: New test. * rust/compile/torture/intrinsics-5.rs: New test. * rust/execute/torture/atomic_store.rs: New test. --- gcc/testsuite/rust/execute/torture/atomic_store.rs | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 gcc/testsuite/rust/execute/torture/atomic_store.rs (limited to 'gcc/testsuite/rust/execute') diff --git a/gcc/testsuite/rust/execute/torture/atomic_store.rs b/gcc/testsuite/rust/execute/torture/atomic_store.rs new file mode 100644 index 0000000..9f248b4 --- /dev/null +++ b/gcc/testsuite/rust/execute/torture/atomic_store.rs @@ -0,0 +1,32 @@ +trait Copy {} + +extern "rust-intrinsic" { + pub fn atomic_store_seqcst(dst: *mut T, val: T); + pub fn atomic_store_release(dst: *mut T, val: T); + pub fn atomic_store_relaxed(dst: *mut T, val: T); + pub fn atomic_store_unordered(dst: *mut T, val: T); +} + +fn main() -> i32 { + let mut dst = 15; + let one; + let two; + let three; + let four; + + unsafe { + atomic_store_seqcst(&mut dst, 1); + one = dst; + + atomic_store_release(&mut dst, 2); + two = dst; + + atomic_store_relaxed(&mut dst, 3); + three = dst; + + atomic_store_unordered(&mut dst, 4); + four = dst; + } + + (four + three + two + one) - 10 +} -- cgit v1.1