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| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-21 14:34:12 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-22 14:28:48 +0200 |
| commit | a27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch) | |
| tree | b033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/slice-as_chunks.rs | |
| parent | ed93c1783b404d728d4809973a0550eb33cd293f (diff) | |
| download | rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.zip | |
Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/slice-as_chunks.rs')
| -rw-r--r-- | tests/codegen-llvm/slice-as_chunks.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/codegen-llvm/slice-as_chunks.rs b/tests/codegen-llvm/slice-as_chunks.rs new file mode 100644 index 00000000000..337eb8981f6 --- /dev/null +++ b/tests/codegen-llvm/slice-as_chunks.rs @@ -0,0 +1,30 @@ +//@ compile-flags: -Copt-level=3 +//@ only-64bit (because the LLVM type of i64 for usize shows up) + +#![crate_type = "lib"] + +// CHECK-LABEL: @chunks4 +#[no_mangle] +pub fn chunks4(x: &[u8]) -> &[[u8; 4]] { + // CHECK-NEXT: start: + // CHECK-NEXT: lshr i64 %x.1, 2 + // CHECK-NOT: shl + // CHECK-NOT: mul + // CHECK-NOT: udiv + // CHECK-NOT: urem + // CHECK: ret + x.as_chunks().0 +} + +// CHECK-LABEL: @chunks4_with_remainder +#[no_mangle] +pub fn chunks4_with_remainder(x: &[u8]) -> (&[[u8; 4]], &[u8]) { + // CHECK-DAG: and i64 %x.1, -4 + // CHECK-DAG: and i64 %x.1, 3 + // CHECK-DAG: lshr + // CHECK-NOT: mul + // CHECK-NOT: udiv + // CHECK-NOT: urem + // CHECK: ret + x.as_chunks() +} |