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Merged
merged 2 commits into from
Aug 9, 2018
Merged

add CTFE stress test #266

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2ccd50f
add CTFE stress test
RalfJung Aug 3, 2018
573c975
split CTFE benchmark into one crate per stress test
RalfJung Aug 6, 2018
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4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-cast/Cargo.lock
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4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-cast/Cargo.toml
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[package]
name = "ctfe-stress"
version = "0.1.0"
authors = ["Ralf Jung <[email protected]>"]
42 changes: 42 additions & 0 deletions collector/benchmarks/ctfe-stress-cast/src/lib.rs
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#![feature(const_fn, const_let)]
#![allow(unused_must_use)]

// Try to make CTFE actually do a lot of computation, without producing a big result.
// And without support for loops.

macro_rules! const_repeat {
// Base case: Use 16 at the end to avoid function calls at the leaves as much as possibele.
([16] $e: expr, $T: ty) => {{
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e
}};
([1] $e: expr, $T: ty) => {{
$e
}};
// Recursive case: Take a 16
([16 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e()
}};
// Recursive case: Take a 4
([4 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e()
}};
// Recursive case: Take a 2
([2 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e()
}};
}
macro_rules! expensive_static {
($name: ident : $T: ty = $e : expr) =>
(pub static $name : $T = const_repeat!([2 16 16 16 16 16] $e, $T);)
}

expensive_static!(CHAIN: usize = 42i32 as u8 as u64 as i8 as isize as usize);
4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-const-fn/Cargo.lock
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4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-const-fn/Cargo.toml
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[package]
name = "ctfe-stress"
version = "0.1.0"
authors = ["Ralf Jung <[email protected]>"]
44 changes: 44 additions & 0 deletions collector/benchmarks/ctfe-stress-const-fn/src/lib.rs
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#![feature(const_fn, const_let)]
#![allow(unused_must_use)]

// Try to make CTFE actually do a lot of computation, without producing a big result.
// And without support for loops.

macro_rules! const_repeat {
// Base case: Use 16 at the end to avoid function calls at the leaves as much as possibele.
([16] $e: expr, $T: ty) => {{
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e
}};
([1] $e: expr, $T: ty) => {{
$e
}};
// Recursive case: Take a 16
([16 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e()
}};
// Recursive case: Take a 4
([4 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e()
}};
// Recursive case: Take a 2
([2 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e()
}};
}
macro_rules! expensive_static {
($name: ident : $T: ty = $e : expr) =>
(pub static $name : $T = const_repeat!([2 16 16 16 16 16] $e, $T);)
}

const fn inc(i: i32) -> i32 { i + 1 }

expensive_static!(CONST_FN_SIMPLE: i32 = inc(42));
4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-force-alloc/Cargo.lock
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4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-force-alloc/Cargo.toml
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[package]
name = "ctfe-stress"
version = "0.1.0"
authors = ["Ralf Jung <[email protected]>"]
42 changes: 42 additions & 0 deletions collector/benchmarks/ctfe-stress-force-alloc/src/lib.rs
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#![feature(const_fn, const_let)]
#![allow(unused_must_use)]

// Try to make CTFE actually do a lot of computation, without producing a big result.
// And without support for loops.

macro_rules! const_repeat {
// Base case: Use 16 at the end to avoid function calls at the leaves as much as possibele.
([16] $e: expr, $T: ty) => {{
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e
}};
([1] $e: expr, $T: ty) => {{
$e
}};
// Recursive case: Take a 16
([16 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e()
}};
// Recursive case: Take a 4
([4 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e()
}};
// Recursive case: Take a 2
([2 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e()
}};
}
macro_rules! expensive_static {
($name: ident : $T: ty = $e : expr) =>
(pub static $name : $T = const_repeat!([2 16 16 16 16 16] $e, $T);)
}

expensive_static!(FORCE_ALLOC: i32 = *****(&&&&&5));
4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-index-check/Cargo.lock
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4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-index-check/Cargo.toml
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[package]
name = "ctfe-stress"
version = "0.1.0"
authors = ["Ralf Jung <[email protected]>"]
42 changes: 42 additions & 0 deletions collector/benchmarks/ctfe-stress-index-check/src/lib.rs
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#![feature(const_fn, const_let)]
#![allow(unused_must_use)]

// Try to make CTFE actually do a lot of computation, without producing a big result.
// And without support for loops.

macro_rules! const_repeat {
// Base case: Use 16 at the end to avoid function calls at the leaves as much as possibele.
([16] $e: expr, $T: ty) => {{
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e
}};
([1] $e: expr, $T: ty) => {{
$e
}};
// Recursive case: Take a 16
([16 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e()
}};
// Recursive case: Take a 4
([4 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e()
}};
// Recursive case: Take a 2
([2 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e()
}};
}
macro_rules! expensive_static {
($name: ident : $T: ty = $e : expr) =>
(pub static $name : $T = const_repeat!([2 16 16 16 16 16] $e, $T);)
}

expensive_static!(CHECKED_INDEX: u8 = b"foomp"[3]);
4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-ops/Cargo.lock
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4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-ops/Cargo.toml
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[package]
name = "ctfe-stress"
version = "0.1.0"
authors = ["Ralf Jung <[email protected]>"]
42 changes: 42 additions & 0 deletions collector/benchmarks/ctfe-stress-ops/src/lib.rs
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#![feature(const_fn, const_let)]
#![allow(unused_must_use)]

// Try to make CTFE actually do a lot of computation, without producing a big result.
// And without support for loops.

macro_rules! const_repeat {
// Base case: Use 16 at the end to avoid function calls at the leaves as much as possibele.
([16] $e: expr, $T: ty) => {{
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e
}};
([1] $e: expr, $T: ty) => {{
$e
}};
// Recursive case: Take a 16
([16 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e()
}};
// Recursive case: Take a 4
([4 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e()
}};
// Recursive case: Take a 2
([2 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e()
}};
}
macro_rules! expensive_static {
($name: ident : $T: ty = $e : expr) =>
(pub static $name : $T = const_repeat!([16 16 16 16 16] $e, $T);)
}

expensive_static!(OPS: i32 = ((((10 >> 1) + 3) * 7) / 2 - 12) << 4);
4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-reloc/Cargo.lock
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4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-reloc/Cargo.toml
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[package]
name = "ctfe-stress"
version = "0.1.0"
authors = ["Ralf Jung <[email protected]>"]
42 changes: 42 additions & 0 deletions collector/benchmarks/ctfe-stress-reloc/src/lib.rs
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#![feature(const_fn, const_let)]
#![allow(unused_must_use)]

// Try to make CTFE actually do a lot of computation, without producing a big result.
// And without support for loops.

macro_rules! const_repeat {
// Base case: Use 16 at the end to avoid function calls at the leaves as much as possibele.
([16] $e: expr, $T: ty) => {{
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e
}};
([1] $e: expr, $T: ty) => {{
$e
}};
// Recursive case: Take a 16
([16 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e()
}};
// Recursive case: Take a 4
([4 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e()
}};
// Recursive case: Take a 2
([2 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e()
}};
}
macro_rules! expensive_static {
($name: ident : $T: ty = $e : expr) =>
(pub static $name : $T = const_repeat!([2 16 16 16 16 16 16] $e, $T);)
}

expensive_static!(RELOCATIONS : &'static str = "hello");
4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-unsize-slice/Cargo.lock
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4 changes: 4 additions & 0 deletions collector/benchmarks/ctfe-stress-unsize-slice/Cargo.toml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
[package]
name = "ctfe-stress"
version = "0.1.0"
authors = ["Ralf Jung <[email protected]>"]
48 changes: 48 additions & 0 deletions collector/benchmarks/ctfe-stress-unsize-slice/src/lib.rs
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#![feature(const_fn, const_let)]
#![allow(unused_must_use)]

// Try to make CTFE actually do a lot of computation, without producing a big result.
// And without support for loops.

macro_rules! const_repeat {
// Base case: Use 16 at the end to avoid function calls at the leaves as much as possibele.
([16] $e: expr, $T: ty) => {{
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e;
$e; $e; $e; $e
}};
([1] $e: expr, $T: ty) => {{
$e
}};
// Recursive case: Take a 16
([16 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e();
e(); e(); e(); e()
}};
// Recursive case: Take a 8
([8 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e();
e(); e(); e(); e()
}};
// Recursive case: Take a 4
([4 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e(); e(); e()
}};
// Recursive case: Take a 2
([2 $($n: tt)*] $e: expr, $T: ty) => {{
const fn e() -> $T { const_repeat!([$($n)*] $e, $T) }
e(); e()
}};
}
macro_rules! expensive_static {
($name: ident : $T: ty = $e : expr) =>
(pub static $name : $T = const_repeat!([16 16 16 16 16 16] $e, $T);)
}

expensive_static!(UNSIZING: &'static [u8] = b"foo");