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| author | Scott McMurray <scottmcm@users.noreply.github.com> | 2022-05-01 00:16:16 -0700 |
|---|---|---|
| committer | Scott McMurray <scottmcm@users.noreply.github.com> | 2022-05-01 22:28:11 -0700 |
| commit | 2830dbd64f50b4a8025025f01578e45cbf9d3719 (patch) | |
| tree | 3f673bd79d8b9645a36c6615eaf781dfd6139448 /src/test/codegen | |
| parent | 61469b682c2b0bf9cebc4622f1859e2bb3b7ebca (diff) | |
| download | rust-2830dbd64f50b4a8025025f01578e45cbf9d3719.tar.gz rust-2830dbd64f50b4a8025025f01578e45cbf9d3719.zip | |
Tweak the calloc optimization to only apply to shortish-arrays
Diffstat (limited to 'src/test/codegen')
| -rw-r--r-- | src/test/codegen/vec-calloc.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/codegen/vec-calloc.rs b/src/test/codegen/vec-calloc.rs new file mode 100644 index 00000000000..c616e9f1145 --- /dev/null +++ b/src/test/codegen/vec-calloc.rs @@ -0,0 +1,32 @@ +// compile-flags: -O +// only-x86_64 +// ignore-debug + +#![crate_type = "lib"] + +// CHECK-LABEL: @vec_zero_scalar +#[no_mangle] +pub fn vec_zero_scalar(n: usize) -> Vec<i32> { + // CHECK-NOT: __rust_alloc( + // CHECK: __rust_alloc_zeroed( + // CHECK-NOT: __rust_alloc( + vec![0; n] +} + +// CHECK-LABEL: @vec_zero_rgb48 +#[no_mangle] +pub fn vec_zero_rgb48(n: usize) -> Vec<[u16; 3]> { + // CHECK-NOT: __rust_alloc( + // CHECK: __rust_alloc_zeroed( + // CHECK-NOT: __rust_alloc( + vec![[0, 0, 0]; n] +} + +// CHECK-LABEL: @vec_zero_array_32 +#[no_mangle] +pub fn vec_zero_array_32(n: usize) -> Vec<[i64; 32]> { + // CHECK-NOT: __rust_alloc( + // CHECK: __rust_alloc_zeroed( + // CHECK-NOT: __rust_alloc( + vec![[0_i64; 32]; n] +} |