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Support dependencies between vars defined in same statement

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Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
This commit is contained in:
Anand Krishnamoorthi
2023-02-26 07:26:54 -08:00
committed by Anand Krishnamoorthi
parent 34eee1f17f
commit 8e0ddbcff2
2 changed files with 109 additions and 31 deletions
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tests/scheduler/mod.rs
+30 -9
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@@ -40,9 +40,9 @@ fn check_result(stmts: &[&str], expected: &[&str], r: SortResult) -> Result<()>
fn case1() -> Result<()> {
let stmts = vec![
"v = x",
"y = [1, 2, 4][_]",
"x > 10",
"x = y + z",
"y = [1, 2, 4][_]",
"z = [4, 8][_]",
"x = 5",
"v = 1",
@@ -60,9 +60,9 @@ fn case1() -> Result<()> {
let mut infos = vec![
make_info(&[("v", &["x"]), ("x", &["v"])]),
make_info(&[("y", &[])]),
make_info(&[("", &["x"])]),
make_info(&[("x", &["y", "z"])]),
make_info(&[("y", &[])]),
make_info(&[("z", &[])]),
make_info(&[("x", &[])]),
make_info(&[("v", &[])]),
@@ -72,16 +72,26 @@ fn case1() -> Result<()> {
}
#[test]
#[ignore = "destructing needs more thought. Hoist exprs and introduce new assignments?"]
//#[ignore = "destructing needs more thought. Hoist exprs and introduce new assignments?"]
fn case2() -> Result<()> {
let stmts = vec!["[x, y+1] = [y, p]", "value = x + p", "y = 5"];
#[rustfmt::skip]
let stmts = vec![
"[x, y+1] = [y, p]",
"value = x + p",
"y = 5"
];
let expected = vec!["y = 5", "[x, y+1] = [y, p]", "value = x + p"];
#[rustfmt::skip]
let expected = vec![
"y = 5",
"[x, y+1] = [y, p]",
"value = x + p"
];
let mut infos = vec![
make_info(&[("y", &[])]),
make_info(&[("value", &["x", "p"])]),
make_info(&[("x", &["y"]), ("y", &["x"]), ("p", &["y"])]),
make_info(&[("value", &["x", "p"])]),
make_info(&[("y", &[])]),
];
check_result(&stmts[..], &expected[..], schedule(&mut infos)?)
@@ -89,9 +99,20 @@ fn case2() -> Result<()> {
#[test]
fn case2_rewritten() -> Result<()> {
let stmts = vec!["y+1 = p", "x = y", "value = x + p", "y = 5"];
#[rustfmt::skip]
let stmts = vec![
"y+1 = p",
"x = y",
"value = x + p", "y = 5"
];
let expected = vec!["y = 5", "y+1 = p", "x = y", "value = x + p"];
#[rustfmt::skip]
let expected = vec![
"y = 5",
"y+1 = p",
"x = y",
"value = x + p"
];
let mut infos = vec![
make_info(&[("p", &["y"])]),