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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/run-make-fulldeps/pgo-use/main.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/run-make-fulldeps/pgo-use/main.rs')
-rw-r--r-- | src/test/run-make-fulldeps/pgo-use/main.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/run-make-fulldeps/pgo-use/main.rs b/src/test/run-make-fulldeps/pgo-use/main.rs new file mode 100644 index 000000000..eb9192c87 --- /dev/null +++ b/src/test/run-make-fulldeps/pgo-use/main.rs @@ -0,0 +1,23 @@ +#[no_mangle] +pub fn cold_function(c: u8) { + println!("cold {}", c); +} + +#[no_mangle] +pub fn hot_function(c: u8) { + std::env::set_var(format!("var{}", c), format!("hot {}", c)); +} + +fn main() { + let arg = std::env::args().skip(1).next().unwrap(); + + for i in 0 .. 1000_000 { + let some_value = arg.as_bytes()[i % arg.len()]; + if some_value == b'!' { + // This branch is never taken at runtime + cold_function(some_value); + } else { + hot_function(some_value); + } + } +} |