diff options
Diffstat (limited to 'src/test/run-make-fulldeps/atomic-lock-free')
-rw-r--r-- | src/test/run-make-fulldeps/atomic-lock-free/Makefile | 48 | ||||
-rw-r--r-- | src/test/run-make-fulldeps/atomic-lock-free/atomic_lock_free.rs | 66 |
2 files changed, 114 insertions, 0 deletions
diff --git a/src/test/run-make-fulldeps/atomic-lock-free/Makefile b/src/test/run-make-fulldeps/atomic-lock-free/Makefile new file mode 100644 index 000000000..9e8b4fabf --- /dev/null +++ b/src/test/run-make-fulldeps/atomic-lock-free/Makefile @@ -0,0 +1,48 @@ +-include ../tools.mk + +# This tests ensure that atomic types are never lowered into runtime library calls that are not +# guaranteed to be lock-free. + +all: +ifeq ($(UNAME),Linux) +ifeq ($(filter x86,$(LLVM_COMPONENTS)),x86) + $(RUSTC) --target=i686-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add + $(RUSTC) --target=x86_64-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add +endif +ifeq ($(filter arm,$(LLVM_COMPONENTS)),arm) + $(RUSTC) --target=arm-unknown-linux-gnueabi atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add + $(RUSTC) --target=arm-unknown-linux-gnueabihf atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add + $(RUSTC) --target=armv7-unknown-linux-gnueabihf atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add + $(RUSTC) --target=thumbv7neon-unknown-linux-gnueabihf atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add +endif +ifeq ($(filter aarch64,$(LLVM_COMPONENTS)),aarch64) + $(RUSTC) --target=aarch64-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add +endif +ifeq ($(filter mips,$(LLVM_COMPONENTS)),mips) + $(RUSTC) --target=mips-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add + $(RUSTC) --target=mipsel-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add +endif +ifeq ($(filter powerpc,$(LLVM_COMPONENTS)),powerpc) + $(RUSTC) --target=powerpc-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add + $(RUSTC) --target=powerpc-unknown-linux-gnuspe atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add + $(RUSTC) --target=powerpc64-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add + $(RUSTC) --target=powerpc64le-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add +endif +ifeq ($(filter systemz,$(LLVM_COMPONENTS)),systemz) + $(RUSTC) --target=s390x-unknown-linux-gnu atomic_lock_free.rs + nm "$(TMPDIR)/libatomic_lock_free.rlib" | $(CGREP) -v __atomic_fetch_add +endif +endif diff --git a/src/test/run-make-fulldeps/atomic-lock-free/atomic_lock_free.rs b/src/test/run-make-fulldeps/atomic-lock-free/atomic_lock_free.rs new file mode 100644 index 000000000..47d90b185 --- /dev/null +++ b/src/test/run-make-fulldeps/atomic-lock-free/atomic_lock_free.rs @@ -0,0 +1,66 @@ +#![feature(no_core, intrinsics, lang_items)] +#![crate_type="rlib"] +#![no_core] + +extern "rust-intrinsic" { + fn atomic_xadd_seqcst<T>(dst: *mut T, src: T) -> T; +} + +#[lang = "sized"] +trait Sized {} +#[lang = "copy"] +trait Copy {} +#[lang = "freeze"] +trait Freeze {} + +impl<T: ?Sized> Copy for *mut T {} + +#[cfg(target_has_atomic = "8")] +pub unsafe fn atomic_u8(x: *mut u8) { + atomic_xadd_seqcst(x, 1); + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "8")] +pub unsafe fn atomic_i8(x: *mut i8) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "16")] +pub unsafe fn atomic_u16(x: *mut u16) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "16")] +pub unsafe fn atomic_i16(x: *mut i16) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "32")] +pub unsafe fn atomic_u32(x: *mut u32) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "32")] +pub unsafe fn atomic_i32(x: *mut i32) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "64")] +pub unsafe fn atomic_u64(x: *mut u64) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "64")] +pub unsafe fn atomic_i64(x: *mut i64) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "128")] +pub unsafe fn atomic_u128(x: *mut u128) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "128")] +pub unsafe fn atomic_i128(x: *mut i128) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "ptr")] +pub unsafe fn atomic_usize(x: *mut usize) { + atomic_xadd_seqcst(x, 1); +} +#[cfg(target_has_atomic = "ptr")] +pub unsafe fn atomic_isize(x: *mut isize) { + atomic_xadd_seqcst(x, 1); +} |