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166 lines
7.2 KiB
C++
166 lines
7.2 KiB
C++
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o - 2>&1 | FileCheck %s
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enum A {
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A_one,
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A_two
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};
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enum A a;
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// CHECK: cir.global external @a = #cir.int<0> : !u32i
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enum B : int;
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enum B b;
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// CHECK: cir.global external @b = #cir.int<0> : !s32i
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enum C : int {
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C_one,
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C_two
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};
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enum C c;
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// CHECK: cir.global external @c = #cir.int<0> : !s32i
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enum class D : int;
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enum D d;
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// CHECK: cir.global external @d = #cir.int<0> : !s32i
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int f1() {
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int i;
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return i;
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}
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// CHECK: cir.func{{.*}} @_Z2f1v() -> (!s32i {{.*}})
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// CHECK: %[[RV:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["__retval"] {alignment = 4 : i64}
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// CHECK: %[[I_PTR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["i"] {alignment = 4 : i64}
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// CHECK: %[[I:.*]] = cir.load{{.*}} %[[I_PTR]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.store{{.*}} %[[I]], %[[RV]] : !s32i, !cir.ptr<!s32i>
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// CHECK: %[[R:.*]] = cir.load{{.*}} %[[RV]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.return %[[R]] : !s32i
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int f2() {
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const int i = 2;
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return i;
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}
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// CHECK: cir.func{{.*}} @_Z2f2v() -> (!s32i {{.*}})
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// CHECK: %[[RV:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["__retval"] {alignment = 4 : i64}
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// CHECK: %[[I_PTR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["i", init, const] {alignment = 4 : i64}
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// CHECK: %[[TWO:.*]] = cir.const #cir.int<2> : !s32i
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// CHECK: cir.store{{.*}} %[[TWO]], %[[I_PTR]] : !s32i, !cir.ptr<!s32i>
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// CHECK: %[[I:.*]] = cir.load{{.*}} %[[I_PTR]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.store{{.*}} %[[I]], %[[RV]] : !s32i, !cir.ptr<!s32i>
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// CHECK: %[[R:.*]] = cir.load{{.*}} %[[RV]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.return %[[R]] : !s32i
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int f3(int i) {
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return i;
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}
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// CHECK: cir.func{{.*}} @_Z2f3i(%[[ARG:.*]]: !s32i {{.*}} loc({{.*}})) -> (!s32i {{.*}})
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// CHECK: %[[ARG_ALLOCA:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["i", init] {alignment = 4 : i64}
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// CHECK: %[[RV:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["__retval"] {alignment = 4 : i64}
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// CHECK: cir.store{{.*}} %[[ARG]], %[[ARG_ALLOCA]] : !s32i, !cir.ptr<!s32i>
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// CHECK: %[[ARG_VAL:.*]] = cir.load{{.*}} %[[ARG_ALLOCA]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.store{{.*}} %[[ARG_VAL]], %[[RV]] : !s32i, !cir.ptr<!s32i>
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// CHECK: %[[R:.*]] = cir.load{{.*}} %[[RV]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.return %[[R]] : !s32i
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int f4(const int i) {
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return i;
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}
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// CHECK: cir.func{{.*}} @_Z2f4i(%[[ARG:.*]]: !s32i {{.*}} loc({{.*}})) -> (!s32i {{.*}})
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// CHECK: %[[ARG_ALLOCA:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["i", init, const] {alignment = 4 : i64}
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// CHECK: %[[RV:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["__retval"] {alignment = 4 : i64}
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// CHECK: cir.store{{.*}} %[[ARG]], %[[ARG_ALLOCA]] : !s32i, !cir.ptr<!s32i>
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// CHECK: %[[ARG_VAL:.*]] = cir.load{{.*}} %[[ARG_ALLOCA]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.store{{.*}} %[[ARG_VAL]], %[[RV]] : !s32i, !cir.ptr<!s32i>
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// CHECK: %[[R:.*]] = cir.load{{.*}} %[[RV]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.return %[[R]] : !s32i
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int *f5() {
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int *p = nullptr;
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{
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int x = 0;
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p = &x;
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*p = 42;
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}
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*p = 43;
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return p;
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}
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// CHECK: cir.func{{.*}} @_Z2f5v() -> (!cir.ptr<!s32i> {{.*}})
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// CHECK-NEXT: %[[RET_ADDR:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["__retval"] {alignment = 8 : i64}
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// CHECK-NEXT: %[[P_ADDR:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["p", init] {alignment = 8 : i64}
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// CHECK-NEXT: %[[NULLPTR:.*]] = cir.const #cir.ptr<null> : !cir.ptr<!s32i>
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// CHECK-NEXT: cir.store{{.*}} %[[NULLPTR]], %[[P_ADDR]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
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// CHECK-NEXT: cir.scope {
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// CHECK-NEXT: %[[X_ADDR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["x", init] {alignment = 4 : i64}
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// CHECK-NEXT: %[[ZERO:.*]] = cir.const #cir.int<0> : !s32i
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// CHECK-NEXT: cir.store{{.*}} %[[ZERO]], %[[X_ADDR]] : !s32i, !cir.ptr<!s32i>
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// CHECK-NEXT: cir.store{{.*}} %[[X_ADDR]], %[[P_ADDR]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
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// CHECK-NEXT: %[[FOURTYTWO:.*]] = cir.const #cir.int<42> : !s32i
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// CHECK-NEXT: %[[P:.*]] = cir.load deref{{.*}} %[[P_ADDR]] : !cir.ptr<!cir.ptr<!s32i>>, !cir.ptr<!s32i>
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// CHECK-NEXT: cir.store{{.*}} %[[FOURTYTWO]], %[[P]] : !s32i, !cir.ptr<!s32i>
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// CHECK-NEXT: }
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// CHECK-NEXT: %[[FOURTYTHREE:.*]] = cir.const #cir.int<43> : !s32i
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// CHECK-NEXT: %[[P:.*]] = cir.load deref{{.*}} %[[P_ADDR]] : !cir.ptr<!cir.ptr<!s32i>>, !cir.ptr<!s32i>
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// CHECK-NEXT: cir.store{{.*}} %[[FOURTYTHREE]], %[[P]] : !s32i, !cir.ptr<!s32i>
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// CHECK-NEXT: %[[P:.*]] = cir.load{{.*}} %[[P_ADDR]] : !cir.ptr<!cir.ptr<!s32i>>, !cir.ptr<!s32i>
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// CHECK-NEXT: cir.store{{.*}} %[[P]], %[[RET_ADDR]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
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// CHECK-NEXT: %[[RET_VAL:.*]] = cir.load{{.*}} %[[RET_ADDR]] : !cir.ptr<!cir.ptr<!s32i>>, !cir.ptr<!s32i>
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// CHECK-NEXT: cir.return %[[RET_VAL]] : !cir.ptr<!s32i>
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using size_type = unsigned long;
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using _Tp = unsigned long;
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size_type max_size() {
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return size_type(~0) / sizeof(_Tp);
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}
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// CHECK: cir.func{{.*}} @_Z8max_sizev() -> (!u64i {{.*}})
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// CHECK: %[[NOT_ZERO:.*]] = cir.const #cir.int<18446744073709551615> : !u64i
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// CHECK: %[[SIZE_OF_TP:.*]] = cir.const #cir.int<8> : !u64i
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// CHECK: %[[RESULT:.*]] = cir.div %[[NOT_ZERO]], %[[SIZE_OF_TP]] : !u64i
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void ref_arg(int &x) {
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int y = x;
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x = 3;
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}
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// CHECK: cir.func{{.*}} @_Z7ref_argRi(%[[ARG:.*]]: !cir.ptr<!s32i> {{.*}})
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// CHECK: %[[X_REF_ADDR:.*]] = cir.alloca !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>, ["x", init, const] {alignment = 8 : i64}
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// CHECK: %[[Y_ADDR:.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["y", init] {alignment = 4 : i64}
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// CHECK: cir.store{{.*}} %[[ARG]], %[[X_REF_ADDR]] : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
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// CHECK: %[[X_REF:.*]] = cir.load{{.*}} %[[X_REF_ADDR]] : !cir.ptr<!cir.ptr<!s32i>>, !cir.ptr<!s32i>
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// CHECK: %[[Y:.*]] = cir.load{{.*}} %[[X_REF]] : !cir.ptr<!s32i>, !s32i
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// CHECK: cir.store{{.*}} %[[Y]], %[[Y_ADDR]] : !s32i, !cir.ptr<!s32i>
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// CHECK: %[[THREE:.*]] = cir.const #cir.int<3> : !s32i
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// CHECK: %[[X_REF:.*]] = cir.load{{.*}} %[[X_REF_ADDR]] : !cir.ptr<!cir.ptr<!s32i>>, !cir.ptr<!s32i>
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// CHECK: cir.store{{.*}} %[[THREE]], %[[X_REF]] : !s32i, !cir.ptr<!s32i>
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// CHECK: cir.return
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short gs;
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short &return_ref() {
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return gs;
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}
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// CHECK: cir.func{{.*}} @_Z10return_refv() -> (!cir.ptr<!s16i> {{.*}})
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// CHECK: %[[RETVAL_ADDR:.*]] = cir.alloca !cir.ptr<!s16i>, !cir.ptr<!cir.ptr<!s16i>>, ["__retval"] {alignment = 8 : i64}
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// CHECK: %[[GS_ADDR:.*]] = cir.get_global @gs : !cir.ptr<!s16i>
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// CHECK: cir.store{{.*}} %[[GS_ADDR]], %[[RETVAL_ADDR]] : !cir.ptr<!s16i>, !cir.ptr<!cir.ptr<!s16i>>
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// CHECK: %[[RETVAL:.*]] = cir.load{{.*}} %[[RETVAL_ADDR]] : !cir.ptr<!cir.ptr<!s16i>>, !cir.ptr<!s16i>
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// CHECK: cir.return %[[RETVAL]] : !cir.ptr<!s16i>
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void ref_local(short x) {
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short &y = x;
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}
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// CHECK: cir.func{{.*}} @_Z9ref_locals(%[[ARG:.*]]: !s16i {{.*}})
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// CHECK: %[[X_ADDR:.*]] = cir.alloca !s16i, !cir.ptr<!s16i>, ["x", init] {alignment = 2 : i64}
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// CHECK: %[[Y_REF_ADDR:.*]] = cir.alloca !cir.ptr<!s16i>, !cir.ptr<!cir.ptr<!s16i>>, ["y", init, const] {alignment = 8 : i64}
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// CHECK: cir.store{{.*}} %[[ARG]], %[[X_ADDR]] : !s16i, !cir.ptr<!s16i>
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// CHECK: cir.store{{.*}} %[[X_ADDR]], %[[Y_REF_ADDR]] : !cir.ptr<!s16i>, !cir.ptr<!cir.ptr<!s16i>>
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