--- /dev/null
+// ignore-tidy-linelength
+// We specify -C incremental here because we want to test the partitioning for
+// incremental compilation
+// compile-flags:-Zprint-mono-items=lazy -Cincremental=tmp/partitioning-tests/incremental-merging
+// compile-flags:-Ccodegen-units=3
+
+#![crate_type = "rlib"]
+
+// This test makes sure that merging of CGUs works together with incremental
+// compilation but at the same time does not modify names of CGUs that were not
+// affected by merging.
+//
+// We expect CGUs `aaa` and `bbb` to be merged (because they are the smallest),
+// while `ccc` and `ddd` are supposed to stay untouched.
+
+pub mod aaa {
+ //~ MONO_ITEM fn incremental_merging::aaa[0]::foo[0] @@ incremental_merging-aaa--incremental_merging-bbb[External]
+ pub fn foo(a: u64) -> u64 {
+ a + 1
+ }
+}
+
+pub mod bbb {
+ //~ MONO_ITEM fn incremental_merging::bbb[0]::foo[0] @@ incremental_merging-aaa--incremental_merging-bbb[External]
+ pub fn foo(a: u64, b: u64) -> u64 {
+ a + b + 1
+ }
+}
+
+pub mod ccc {
+ //~ MONO_ITEM fn incremental_merging::ccc[0]::foo[0] @@ incremental_merging-ccc[External]
+ pub fn foo(a: u64, b: u64, c: u64) -> u64 {
+ a + b + c + 1
+ }
+}
+
+pub mod ddd {
+ //~ MONO_ITEM fn incremental_merging::ddd[0]::foo[0] @@ incremental_merging-ddd[External]
+ pub fn foo(a: u64, b: u64, c: u64, d: u64) -> u64 {
+ a + b + c + d + 1
+ }
+}
.filter(|s| !s.is_empty())
.map(|s| {
if cgu_has_crate_disambiguator {
- remove_crate_disambiguator_from_cgu(s)
+ remove_crate_disambiguators_from_set_of_cgu_names(s)
} else {
s.to_string()
}
new_name
}
+
+ // The name of merged CGUs is constructed as the names of the original
+ // CGUs joined with "--". This function splits such composite CGU names
+ // and handles each component individually.
+ fn remove_crate_disambiguators_from_set_of_cgu_names(cgus: &str) -> String {
+ cgus.split("--")
+ .map(|cgu| remove_crate_disambiguator_from_cgu(cgu))
+ .collect::<Vec<_>>()
+ .join("--")
+ }
}
fn init_incremental_test(&self) {