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Diffstat (limited to 'tests/codegen/array-map.rs')
| -rw-r--r-- | tests/codegen/array-map.rs | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/tests/codegen/array-map.rs b/tests/codegen/array-map.rs deleted file mode 100644 index f49dddcfc20..00000000000 --- a/tests/codegen/array-map.rs +++ /dev/null @@ -1,35 +0,0 @@ -//@ compile-flags: -C opt-level=3 -C target-cpu=x86-64-v3 -//@ only-x86_64 - -#![crate_type = "lib"] - -// CHECK-LABEL: @short_integer_map -#[no_mangle] -pub fn short_integer_map(x: [u32; 8]) -> [u32; 8] { - // CHECK: load <8 x i32> - // CHECK: shl <8 x i32> - // CHECK: or{{( disjoint)?}} <8 x i32> - // CHECK: store <8 x i32> - x.map(|x| 2 * x + 1) -} - -// This test is checking that LLVM can SRoA away a bunch of the overhead, -// like fully moving the iterators to registers. Notably, previous implementations -// of `map` ended up `alloca`ing the whole `array::IntoIterator`, meaning both a -// hard-to-eliminate `memcpy` and that the iteration counts needed to be written -// out to stack every iteration, even for infallible operations on `Copy` types. -// -// This is still imperfect, as there's more copies than would be ideal, -// but hopefully work like #103830 will improve that in future, -// and update this test to be stricter. -// -// CHECK-LABEL: @long_integer_map -#[no_mangle] -pub fn long_integer_map(x: [u32; 512]) -> [u32; 512] { - // CHECK: start: - // CHECK-NEXT: alloca [2048 x i8] - // CHECK-NOT: alloca - // CHECK: mul <{{[0-9]+}} x i32> - // CHECK: add <{{[0-9]+}} x i32> - x.map(|x| 13 * x + 7) -} |
