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| author | The8472 <git@infinite-source.de> | 2020-12-09 01:08:11 +0100 |
|---|---|---|
| committer | The8472 <git@infinite-source.de> | 2021-03-21 20:54:06 +0100 |
| commit | 17f4c2a487f52c02afe956f40d800a4a133c6c79 (patch) | |
| tree | a511df7b6ec5439a1ce1c543e9302293031ea06c | |
| parent | 6c67e5527023df098257c4258072bff52de95c8f (diff) | |
| download | rust-17f4c2a487f52c02afe956f40d800a4a133c6c79.tar.gz rust-17f4c2a487f52c02afe956f40d800a4a133c6c79.zip | |
add codegen test
| -rw-r--r-- | src/test/codegen/vec-in-place.rs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/codegen/vec-in-place.rs b/src/test/codegen/vec-in-place.rs new file mode 100644 index 00000000000..51b570e8be6 --- /dev/null +++ b/src/test/codegen/vec-in-place.rs @@ -0,0 +1,13 @@ +// compile-flags: -O +// min-llvm-version: 11.0 +#![crate_type = "lib"] + +// Ensure that trivial casts of vec elements are O(1) + +// CHECK-LABEL: @vec_iterator_cast +#[no_mangle] +pub fn vec_iterator_cast(vec: Vec<isize>) -> Vec<usize> { + // CHECK-NOT: loop + // CHECK-NOT: call + vec.into_iter().map(|e| e as usize).collect() +} |