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Signed-off-by: Yuki Okushi <jtitor@2k36.org>
This commit is contained in:
Yuki Okushi 2022-12-22 20:45:36 +09:00
parent 75f1dfcc32
commit 78e11a4556
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1 changed files with 8 additions and 9 deletions
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17
src/test/codegen/issue-86106.rs
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@ -1,5 +1,5 @@
// min-llvm-version: 15.0
// compile-flags: -C opt-level=3 -C target-cpu=native
// compile-flags: -C opt-level=3
// The below two functions ensure that both `String::new()` and `"".to_string()`
// produce the identical code.
@ -7,21 +7,20 @@
#![crate_type = "lib"]
// CHECK-LABEL: @string_new = unnamed_addr alias void (ptr), ptr @empty_to_string
// CHECK: define void @empty_to_string
#[no_mangle]
pub fn string_new() -> String {
String::new()
}
// CHECK-LABEL: define void @empty_to_string
#[no_mangle]
pub fn empty_to_string() -> String {
// CHECK-NOT: load i8
// CHECK: store i64
// CHECK: store i{{32|64}}
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store ptr
// CHECK-NEXT: getelementptr
// CHECK-NOT: store i8
// CHECK-NEXT: store i64
// CHECK-NEXT: store i{{32|64}}
// CHECK-NEXT: ret void
"".to_string()
}
@ -32,12 +31,12 @@ pub fn empty_to_string() -> String {
// CHECK-LABEL: @empty_vec
#[no_mangle]
pub fn empty_vec() -> Vec<u8> {
// CHECK: store i64
// CHECK: store i{{32|64}}
// CHECK-NOT: load i8
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store ptr
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store i64
// CHECK-NEXT: store i{{32|64}}
// CHECK-NEXT: ret void
vec![]
}
@ -45,12 +44,12 @@ pub fn empty_vec() -> Vec<u8> {
// CHECK-LABEL: @empty_vec_clone
#[no_mangle]
pub fn empty_vec_clone() -> Vec<u8> {
// CHECK: store i64
// CHECK: store i{{32|64}}
// CHECK-NOT: load i8
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store ptr
// CHECK-NEXT: getelementptr
// CHECK-NEXT: store i64
// CHECK-NEXT: store i{{32|64}}
// CHECK-NEXT: ret void
vec![].clone()
}