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Implement volatile_load and volatile_store intrinsics.
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-include ../tools.mk | ||
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all: | ||
# The tests must pass... | ||
$(RUSTC) main.rs | ||
$(call RUN,main) | ||
# ... and the loads/stores must not be optimized out. | ||
$(RUSTC) main.rs --emit-llvm -S | ||
grep "load volatile" $(TMPDIR)/main.ll | ||
grep "store volatile" $(TMPDIR)/main.ll |
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// Copyright 2013 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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use std::unstable::intrinsics::{volatile_load, volatile_store}; | ||
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pub fn main() { | ||
unsafe { | ||
let mut i : int = 1; | ||
volatile_store(&mut i, 2); | ||
assert_eq!(volatile_load(&i), 2); | ||
} | ||
} |
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saw approval from thestinger
at https://github.com/whitequark/rust/commit/f98f83a15de649f3b4d152737336e95a0969e265
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merging whitequark/rust/master = f98f83a into auto
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whitequark/rust/master = f98f83a merged ok, testing candidate = 1dcc986
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all tests pass:
success: http://buildbot.rust-lang.org/builders/auto-mac-32-opt/builds/3281
success: http://buildbot.rust-lang.org/builders/auto-mac-32-nopt-c/builds/1124
success: http://buildbot.rust-lang.org/builders/auto-mac-32-nopt-t/builds/1126
success: http://buildbot.rust-lang.org/builders/auto-mac-64-opt/builds/3284
success: http://buildbot.rust-lang.org/builders/auto-mac-64-nopt-c/builds/2386
success: http://buildbot.rust-lang.org/builders/auto-mac-64-nopt-t/builds/2389
success: http://buildbot.rust-lang.org/builders/auto-linux-32-opt/builds/3300
success: http://buildbot.rust-lang.org/builders/auto-linux-32-nopt-c/builds/2389
success: http://buildbot.rust-lang.org/builders/auto-linux-32-nopt-t/builds/2394
success: http://buildbot.rust-lang.org/builders/auto-linux-64-opt/builds/3302
success: http://buildbot.rust-lang.org/builders/auto-linux-64-nopt-c/builds/2389
success: http://buildbot.rust-lang.org/builders/auto-linux-64-nopt-t/builds/2393
success: http://buildbot.rust-lang.org/builders/auto-linux-64-x-android/builds/2463
success: http://buildbot.rust-lang.org/builders/auto-win-32-opt/builds/3288
success: http://buildbot.rust-lang.org/builders/auto-win-32-nopt-c/builds/2390
success: http://buildbot.rust-lang.org/builders/auto-win-32-nopt-t/builds/2394
success: http://buildbot.rust-lang.org/builders/auto-bsd-64-opt/builds/3063
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fast-forwarding master to auto = 1dcc986