bjoernager/rust
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Merge two different equality specialization traits in core

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This commit is contained in:
Scott McMurray 2023-02-25 22:47:20 -08:00
parent c5c7d2b377
commit 44eec1d9b0
7 changed files with 182 additions and 94 deletions
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30
tests/codegen/array-equality.rs
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@ -1,4 +1,4 @@
// compile-flags: -O
// compile-flags: -O -Z merge-functions=disabled
// only-x86_64
#![crate_type = "lib"]
@ -43,6 +43,15 @@ pub fn array_eq_long(a: &[u16; 1234], b: &[u16; 1234]) -> bool {
a == b
}
// CHECK-LABEL: @array_char_eq
#[no_mangle]
pub fn array_char_eq(a: [char; 2], b: [char; 2]) -> bool {
// CHECK-NEXT: start:
// CHECK-NEXT: %[[EQ:.+]] = icmp eq i64 %0, %1
// CHECK-NEXT: ret i1 %[[EQ]]
a == b
}
// CHECK-LABEL: @array_eq_zero_short(i48
#[no_mangle]
pub fn array_eq_zero_short(x: [u16; 3]) -> bool {
@ -52,6 +61,25 @@ pub fn array_eq_zero_short(x: [u16; 3]) -> bool {
x == [0; 3]
}
// CHECK-LABEL: @array_eq_none_short(i40
#[no_mangle]
pub fn array_eq_none_short(x: [Option<std::num::NonZeroU8>; 5]) -> bool {
// CHECK-NEXT: start:
// CHECK-NEXT: %[[EQ:.+]] = icmp eq i40 %0, 0
// CHECK-NEXT: ret i1 %[[EQ]]
x == [None; 5]
}
// CHECK-LABEL: @array_eq_zero_nested(
#[no_mangle]
pub fn array_eq_zero_nested(x: [[u8; 3]; 3]) -> bool {
// CHECK: %[[VAL:.+]] = load i72
// CHECK-SAME: align 1
// CHECK: %[[EQ:.+]] = icmp eq i72 %[[VAL]], 0
// CHECK: ret i1 %[[EQ]]
x == [[0; 3]; 3]
}
// CHECK-LABEL: @array_eq_zero_mid(
#[no_mangle]
pub fn array_eq_zero_mid(x: [u16; 8]) -> bool {