mirror of https://github.com/rust-lang/rust.git
64 lines
1.3 KiB
Rust
64 lines
1.3 KiB
Rust
// This test checks that the call to memchr/slice_contains is optimized away
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// when searching in small slices.
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// compile-flags: -O -Zinline-mir=false
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// only-x86_64
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#![crate_type = "lib"]
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// CHECK-LABEL: @foo1
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#[no_mangle]
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pub fn foo1(x: u8, data: &[u8; 1]) -> bool {
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// CHECK-NOT: memchr
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// CHECK-NOT: slice_contains
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data.contains(&x)
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}
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// CHECK-LABEL: @foo2
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#[no_mangle]
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pub fn foo2(x: u8, data: &[u8; 2]) -> bool {
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// CHECK-NOT: memchr
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// CHECK-NOT: slice_contains
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data.contains(&x)
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}
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// CHECK-LABEL: @foo3
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#[no_mangle]
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pub fn foo3(x: u8, data: &[u8; 3]) -> bool {
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// CHECK-NOT: memchr
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// CHECK-NOT: slice_contains
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data.contains(&x)
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}
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// CHECK-LABEL: @foo4
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#[no_mangle]
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pub fn foo4(x: u8, data: &[u8; 4]) -> bool {
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// CHECK-NOT: memchr
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// CHECK-NOT: slice_contains
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data.contains(&x)
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}
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// CHECK-LABEL: @foo8
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#[no_mangle]
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pub fn foo8(x: u8, data: &[u8; 8]) -> bool {
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// CHECK-NOT: memchr
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// CHECK-NOT: slice_contains
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data.contains(&x)
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}
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// CHECK-LABEL: @foo8_i8
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#[no_mangle]
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pub fn foo8_i8(x: i8, data: &[i8; 8]) -> bool {
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// CHECK-NOT: memchr
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// CHECK-NOT: slice_contains
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!data.contains(&x)
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}
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// Check that the general case isn't inlined
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// CHECK-LABEL: @foo80
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#[no_mangle]
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pub fn foo80(x: u8, data: &[u8; 80]) -> bool {
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// CHECK: call core::slice::memchr
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data.contains(&x)
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}
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