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103 lines
3.0 KiB
Rust
103 lines
3.0 KiB
Rust
//@ compile-flags: -O -Z merge-functions=disabled
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//@ only-x86_64
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#![crate_type = "lib"]
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#![feature(generic_nonzero)]
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// CHECK-LABEL: @array_eq_value
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#[no_mangle]
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pub fn array_eq_value(a: [u16; 3], b: [u16; 3]) -> bool {
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// CHECK-NEXT: start:
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// CHECK-NEXT: %2 = icmp eq i48 %0, %1
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// CHECK-NEXT: ret i1 %2
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a == b
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}
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// CHECK-LABEL: @array_eq_ref
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#[no_mangle]
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pub fn array_eq_ref(a: &[u16; 3], b: &[u16; 3]) -> bool {
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// CHECK: start:
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// CHECK: load i48, ptr %{{.+}}, align 2
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// CHECK: load i48, ptr %{{.+}}, align 2
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// CHECK: icmp eq i48
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// CHECK-NEXT: ret
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a == b
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}
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// CHECK-LABEL: @array_eq_value_still_passed_by_pointer
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#[no_mangle]
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pub fn array_eq_value_still_passed_by_pointer(a: [u16; 9], b: [u16; 9]) -> bool {
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// CHECK-NEXT: start:
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// CHECK: %[[CMP:.+]] = tail call i32 @{{bcmp|memcmp}}(ptr {{.*}} dereferenceable(18) %{{.+}}, ptr {{.*}} dereferenceable(18) %{{.+}}, i64 18)
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// CHECK-NEXT: %[[EQ:.+]] = icmp eq i32 %[[CMP]], 0
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// CHECK-NEXT: ret i1 %[[EQ]]
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a == b
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}
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// CHECK-LABEL: @array_eq_long
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#[no_mangle]
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pub fn array_eq_long(a: &[u16; 1234], b: &[u16; 1234]) -> bool {
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// CHECK-NEXT: start:
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// CHECK: %[[CMP:.+]] = tail call i32 @{{bcmp|memcmp}}(ptr {{.*}} dereferenceable(2468) %{{.+}}, ptr {{.*}} dereferenceable(2468) %{{.+}}, i64 2468)
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// CHECK-NEXT: %[[EQ:.+]] = icmp eq i32 %[[CMP]], 0
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// CHECK-NEXT: ret i1 %[[EQ]]
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a == b
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}
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// CHECK-LABEL: @array_char_eq
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#[no_mangle]
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pub fn array_char_eq(a: [char; 2], b: [char; 2]) -> bool {
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// CHECK-NEXT: start:
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// CHECK-NEXT: %[[EQ:.+]] = icmp eq i64 %0, %1
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// CHECK-NEXT: ret i1 %[[EQ]]
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a == b
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}
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// CHECK-LABEL: @array_eq_zero_short(i48
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#[no_mangle]
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pub fn array_eq_zero_short(x: [u16; 3]) -> bool {
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// CHECK-NEXT: start:
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// CHECK-NEXT: %[[EQ:.+]] = icmp eq i48 %0, 0
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// CHECK-NEXT: ret i1 %[[EQ]]
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x == [0; 3]
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}
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// CHECK-LABEL: @array_eq_none_short(i40
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#[no_mangle]
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pub fn array_eq_none_short(x: [Option<std::num::NonZero<u8>>; 5]) -> bool {
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// CHECK-NEXT: start:
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// CHECK-NEXT: %[[EQ:.+]] = icmp eq i40 %0, 0
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// CHECK-NEXT: ret i1 %[[EQ]]
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x == [None; 5]
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}
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// CHECK-LABEL: @array_eq_zero_nested(
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#[no_mangle]
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pub fn array_eq_zero_nested(x: [[u8; 3]; 3]) -> bool {
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// CHECK: %[[VAL:.+]] = load i72
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// CHECK-SAME: align 1
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// CHECK: %[[EQ:.+]] = icmp eq i72 %[[VAL]], 0
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// CHECK: ret i1 %[[EQ]]
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x == [[0; 3]; 3]
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}
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// CHECK-LABEL: @array_eq_zero_mid(
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#[no_mangle]
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pub fn array_eq_zero_mid(x: [u16; 8]) -> bool {
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// CHECK-NEXT: start:
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// CHECK: %[[LOAD:.+]] = load i128,
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// CHECK-NEXT: %[[EQ:.+]] = icmp eq i128 %[[LOAD]], 0
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// CHECK-NEXT: ret i1 %[[EQ]]
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x == [0; 8]
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}
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// CHECK-LABEL: @array_eq_zero_long(
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#[no_mangle]
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pub fn array_eq_zero_long(x: [u16; 1234]) -> bool {
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// CHECK-NEXT: start:
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// CHECK-NOT: alloca
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// CHECK: %[[CMP:.+]] = tail call i32 @{{bcmp|memcmp}}(
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// CHECK-NEXT: %[[EQ:.+]] = icmp eq i32 %[[CMP]], 0
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// CHECK-NEXT: ret i1 %[[EQ]]
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x == [0; 1234]
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}
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