[CIR][CodeGen][BugFix] Fixes structures name collisions (#844)

CIR Codegen fails to generate functions with local types with the same
names. For instance, the next code :
```
void foo(int a, float b) {
  struct A { int x; };
  struct A loc = {a};
  {
    struct A { float y; };
    struct A loc = {b};
  }
}
```
fails with on the next assertion: `Unable to find record layout
information for type`. The problem is that we don't create record layout
for the structures with equal names and
`CIRGenTypes::convertRecordDeclType` returns the wrong type for the
second struct type in the example above. This PR fixes this problem.

In the original codegen the call to `Ty->setName(name)` resolves name
collisions and assign a proper name for the type. In our case looks like
we need to use the same approach as we did for the anonymous structures,
i.e. to track the used names in the builder.

Also, I fixed the struct type creation. Previously, the type was created
several times - first in the `CIRGenTypes::convertRecordDeclType` and
then in the `CIRGenTypes::computeRecordLayout`. This is why the indexes
used by the anonymous structures naming had relatively big values and
this is where the most changes on the tests come from.

Author: gitoleg

clang/lib/CIR/CodeGen/CIRGenBuilder.h

@@ -53,16 +53,26 @@ class CIRGenBuilderTy : public CIRBaseBuilderTy {
   llvm::RoundingMode DefaultConstrainedRounding = llvm::RoundingMode::Dynamic;
 
   llvm::StringMap<unsigned> GlobalsVersioning;
-  llvm::StringSet<> anonRecordNames;
+  llvm::StringMap<unsigned> RecordNames;
 
 public:
   CIRGenBuilderTy(mlir::MLIRContext &C, const CIRGenTypeCache &tc)
-      : CIRBaseBuilderTy(C), typeCache(tc) {}
+      : CIRBaseBuilderTy(C), typeCache(tc) {
+    RecordNames["anon"] = 0; // in order to start from the name "anon.0"
+  }
 
   std::string getUniqueAnonRecordName() {
-    std::string name = "anon." + std::to_string(anonRecordNames.size());
-    anonRecordNames.insert(name);
-    return name;
+    return getUniqueRecordName("anon");
+  }
+
+  std::string getUniqueRecordName(const std::string& baseName) {
+    auto it = RecordNames.find(baseName);
+    if (it == RecordNames.end()) {
+      RecordNames[baseName] = 0;
+      return baseName;
+    }
+
+    return baseName + "." + std::to_string(RecordNames[baseName]++);
   }
 
   //

clang/lib/CIR/CodeGen/CIRGenTypes.cpp

@@ -92,7 +92,7 @@ std::string CIRGenTypes::getRecordTypeName(const clang::RecordDecl *recordDecl,
   if (!suffix.empty())
     outStream << suffix;
 
-  return std::string(typeName);
+  return Builder.getUniqueRecordName(std::string(typeName));
 }
 
 /// Return true if the specified type is already completely laid out.

clang/lib/CIR/CodeGen/CIRRecordLayoutBuilder.cpp

@@ -689,8 +689,8 @@ CIRGenTypes::computeRecordLayout(const RecordDecl *D,
   // Fill in the struct *after* computing the base type.  Filling in the body
   // signifies that the type is no longer opaque and record layout is complete,
   // but we may need to recursively layout D while laying D out as a base type.
-  *Ty = Builder.getCompleteStructTy(
-      builder.fieldTypes, getRecordTypeName(D, ""), builder.isPacked, D);
+  auto astAttr = mlir::cir::ASTRecordDeclAttr::get(Ty->getContext(), D);
+  Ty->complete(builder.fieldTypes, builder.isPacked, astAttr);
 
   auto RL = std::make_unique<CIRGenRecordLayout>(
       Ty ? *Ty : mlir::cir::StructType{},

clang/test/CIR/CodeGen/bitfields.c

@@ -55,13 +55,13 @@ typedef struct {
 
 // CHECK: !ty_D = !cir.struct<struct "D" {!u16i, !s32i}>
 // CHECK: !ty_T = !cir.struct<struct "T" {!u8i, !u32i} #cir.record.decl.ast>
-// CHECK: !ty_anon2E1_ = !cir.struct<struct "anon.1" {!u32i} #cir.record.decl.ast>
+// CHECK: !ty_anon2E0_ = !cir.struct<struct "anon.0" {!u32i} #cir.record.decl.ast>
 // CHECK: !ty_anon_struct = !cir.struct<struct  {!u8i, !u8i, !s32i}>
 // CHECK: #bfi_a = #cir.bitfield_info<name = "a", storage_type = !u8i, size = 3, offset = 0, is_signed = true>
 // CHECK: #bfi_e = #cir.bitfield_info<name = "e", storage_type = !u16i, size = 15, offset = 0, is_signed = true>
 // CHECK: !ty_S = !cir.struct<struct "S" {!u32i, !cir.array<!u8i x 3>, !u16i, !u32i}>
 // CHECK: !ty_U = !cir.struct<struct "U" {!s8i, !s8i, !s8i, !cir.array<!u8i x 9>}>
-// CHECK: !ty___long = !cir.struct<struct "__long" {!ty_anon2E1_, !u32i, !cir.ptr<!u32i>}>
+// CHECK: !ty___long = !cir.struct<struct "__long" {!ty_anon2E0_, !u32i, !cir.ptr<!u32i>}>
 // CHECK: #bfi_d = #cir.bitfield_info<name = "d", storage_type = !cir.array<!u8i x 3>, size = 2, offset = 17, is_signed = true>
 
 // CHECK: cir.func {{.*@store_field}}

clang/test/CIR/CodeGen/bitfields.cpp

@@ -28,9 +28,9 @@ typedef struct {
   unsigned b;
 } T;
 // CHECK: !ty_T = !cir.struct<struct "T" {!u8i, !u32i} #cir.record.decl.ast>
-// CHECK: !ty_anon2E1_ = !cir.struct<struct "anon.1" {!u32i} #cir.record.decl.ast>
+// CHECK: !ty_anon2E0_ = !cir.struct<struct "anon.0" {!u32i} #cir.record.decl.ast>
 // CHECK: !ty_S = !cir.struct<struct "S" {!u32i, !cir.array<!u8i x 3>, !u16i, !u32i}>
-// CHECK: !ty___long = !cir.struct<struct "__long" {!ty_anon2E1_, !u32i, !cir.ptr<!u32i>}>
+// CHECK: !ty___long = !cir.struct<struct "__long" {!ty_anon2E0_, !u32i, !cir.ptr<!u32i>}>
 
 // CHECK: cir.func @_Z11store_field
 // CHECK:   [[TMP0:%.*]] = cir.alloca !ty_S, !cir.ptr<!ty_S>

clang/test/CIR/CodeGen/compound-literal.c

@@ -37,8 +37,8 @@ int foo() {
 
 // CIR:  cir.func no_proto @foo() -> !s32i
 // CIR:    [[RET_MEM:%.*]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["__retval"] {alignment = 4 : i64}
-// CIR:    [[COMPLITERAL_MEM:%.*]] = cir.alloca !ty_anon2E1_, !cir.ptr<!ty_anon2E1_>, [".compoundliteral"] {alignment = 4 : i64}
-// CIR:    [[FIELD:%.*]] = cir.get_member [[COMPLITERAL_MEM]][0] {name = "i"} : !cir.ptr<!ty_anon2E1_> -> !cir.ptr<!s32i>
+// CIR:    [[COMPLITERAL_MEM:%.*]] = cir.alloca !ty_anon2E0_, !cir.ptr<!ty_anon2E0_>, [".compoundliteral"] {alignment = 4 : i64}
+// CIR:    [[FIELD:%.*]] = cir.get_member [[COMPLITERAL_MEM]][0] {name = "i"} : !cir.ptr<!ty_anon2E0_> -> !cir.ptr<!s32i>
 // CIR:    [[ONE:%.*]] = cir.const #cir.int<1> : !s32i
 // CIR:    cir.store [[ONE]], [[FIELD]] : !s32i, !cir.ptr<!s32i>
 // CIR:    [[ONE:%.*]] = cir.const #cir.int<1> : !s32i

clang/test/CIR/CodeGen/coro-task.cpp

@@ -356,10 +356,10 @@ folly::coro::Task<int> go4() {
 // CHECK: }
 
 // CHECK: %12 = cir.scope {
-// CHECK:   %17 = cir.alloca !ty_anon2E5_, !cir.ptr<!ty_anon2E5_>, ["ref.tmp1"] {alignment = 1 : i64}
+// CHECK:   %17 = cir.alloca !ty_anon2E2_, !cir.ptr<!ty_anon2E2_>, ["ref.tmp1"] {alignment = 1 : i64}
 
 // Get the lambda invoker ptr via `lambda operator folly::coro::Task<int> (*)(int const&)()`
-// CHECK:   %18 = cir.call @_ZZ3go4vENK3$_0cvPFN5folly4coro4TaskIiEERKiEEv(%17) : (!cir.ptr<!ty_anon2E5_>) -> !cir.ptr<!cir.func<![[IntTask]] (!cir.ptr<!s32i>)>>
+// CHECK:   %18 = cir.call @_ZZ3go4vENK3$_0cvPFN5folly4coro4TaskIiEERKiEEv(%17) : (!cir.ptr<!ty_anon2E2_>) -> !cir.ptr<!cir.func<![[IntTask]] (!cir.ptr<!s32i>)>>
 // CHECK:   %19 = cir.unary(plus, %18) : !cir.ptr<!cir.func<![[IntTask]] (!cir.ptr<!s32i>)>>, !cir.ptr<!cir.func<![[IntTask]] (!cir.ptr<!s32i>)>>
 // CHECK:   cir.yield %19 : !cir.ptr<!cir.func<![[IntTask]] (!cir.ptr<!s32i>)>>
 // CHECK: }

clang/test/CIR/CodeGen/forward-decls.cpp

@@ -96,13 +96,12 @@ void testIndirectSelfReference(struct StructNodeA arg) {
 // RUN: FileCheck --check-prefix=CHECK5 --input-file=%t/complex_struct.cir %s
 
 // A sizeable complex struct just to double check that stuff is working.
-
-// CHECK5: !cir.struct<struct "anon.1" {!cir.ptr<!cir.struct<struct "A" {!cir.struct<struct "anon.1">, !cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !cir.struct<struct "C" {!cir.ptr<!cir.struct<struct "A">>, !cir.ptr<!cir.struct<struct "B">>, !cir.ptr<!cir.struct<struct "C">>} #cir.record.decl.ast>, !cir.struct<union "anon.5" {!cir.ptr<!cir.struct<struct "A">>, !cir.struct<struct "anon.4" {!cir.ptr<!cir.struct<struct "B">>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>>} #cir.record.decl.ast>
-// CHECK5: !cir.struct<struct "C" {!cir.ptr<!cir.struct<struct "A" {!ty_anon2E1_, !cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !cir.struct<struct "C">, !cir.struct<union "anon.5" {!cir.ptr<!cir.struct<struct "A">>, !cir.struct<struct "anon.4" {!cir.ptr<!cir.struct<struct "B">>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>>, !cir.ptr<!cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !cir.struct<struct "C">, !cir.struct<union "anon.5" {!cir.ptr<!cir.struct<struct "A" {!ty_anon2E1_, !cir.struct<struct "B">} #cir.record.decl.ast>>, !cir.struct<struct "anon.4" {!cir.ptr<!cir.struct<struct "B">>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>>, !cir.ptr<!cir.struct<struct "C">>} #cir.record.decl.ast>
-// CHECK5: !cir.struct<struct "anon.4" {!cir.ptr<!cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !ty_C, !cir.struct<union "anon.5" {!cir.ptr<!cir.struct<struct "A" {!ty_anon2E1_, !cir.struct<struct "B">} #cir.record.decl.ast>>, !cir.struct<struct "anon.4">} #cir.record.decl.ast>} #cir.record.decl.ast>>} #cir.record.decl.ast>
-// CHECK5: !cir.struct<union "anon.5" {!cir.ptr<!cir.struct<struct "A" {!ty_anon2E1_, !cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !ty_C, !cir.struct<union "anon.5">} #cir.record.decl.ast>} #cir.record.decl.ast>>, !ty_anon2E4_} #cir.record.decl.ast>
-// CHECK5: !cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !ty_C, !ty_anon2E5_} #cir.record.decl.ast>
-// CHECK5: !cir.struct<struct "A" {!ty_anon2E1_, !ty_B} #cir.record.decl.ast>
+// CHECK5: !cir.struct<struct "anon.0" {!cir.ptr<!cir.struct<struct "A" {!cir.struct<struct "anon.0">, !cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !cir.struct<struct "C" {!cir.ptr<!cir.struct<struct "A">>, !cir.ptr<!cir.struct<struct "B">>, !cir.ptr<!cir.struct<struct "C">>} #cir.record.decl.ast>, !cir.struct<union "anon.1" {!cir.ptr<!cir.struct<struct "A">>, !cir.struct<struct "anon.2" {!cir.ptr<!cir.struct<struct "B">>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>>} #cir.record.decl.ast>
+// CHECK5: !cir.struct<struct "C" {!cir.ptr<!cir.struct<struct "A" {!ty_anon2E0_, !cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !cir.struct<struct "C">, !cir.struct<union "anon.1" {!cir.ptr<!cir.struct<struct "A">>, !cir.struct<struct "anon.2" {!cir.ptr<!cir.struct<struct "B">>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>>, !cir.ptr<!cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !cir.struct<struct "C">, !cir.struct<union "anon.1" {!cir.ptr<!cir.struct<struct "A" {!ty_anon2E0_, !cir.struct<struct "B">} #cir.record.decl.ast>>, !cir.struct<struct "anon.2" {!cir.ptr<!cir.struct<struct "B">>} #cir.record.decl.ast>} #cir.record.decl.ast>} #cir.record.decl.ast>>, !cir.ptr<!cir.struct<struct "C">>} #cir.record.decl.ast>
+// CHECK5: !cir.struct<struct "anon.2" {!cir.ptr<!cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !ty_C, !cir.struct<union "anon.1" {!cir.ptr<!cir.struct<struct "A" {!ty_anon2E0_, !cir.struct<struct "B">} #cir.record.decl.ast>>, !cir.struct<struct "anon.2">} #cir.record.decl.ast>} #cir.record.decl.ast>>} #cir.record.decl.ast>
+// CHECK5: !cir.struct<union "anon.1" {!cir.ptr<!cir.struct<struct "A" {!ty_anon2E0_, !cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !ty_C, !cir.struct<union "anon.1">} #cir.record.decl.ast>} #cir.record.decl.ast>>, !ty_anon2E2_} #cir.record.decl.ast>
+// CHECK5: !cir.struct<struct "B" {!cir.ptr<!cir.struct<struct "B">>, !ty_C, !ty_anon2E1_} #cir.record.decl.ast>
+// CHECK5: !cir.struct<struct "A" {!ty_anon2E0_, !ty_B} #cir.record.decl.ast>
 struct A {
   struct {
     struct A *a1;

clang/test/CIR/CodeGen/globals.c

@@ -57,25 +57,25 @@ const int i = 12;
 int i2 = i;
 struct { int i; } i3 = {i};
 // CHECK: cir.global external @i2 = #cir.int<12> : !s32i
-// CHECK: cir.global external @i3 = #cir.const_struct<{#cir.int<12> : !s32i}> : !ty_anon2E7_
+// CHECK: cir.global external @i3 = #cir.const_struct<{#cir.int<12> : !s32i}> : !ty_anon2E3_
 
 int a[10][10][10];
 int *a2 = &a[3][0][8];
 struct { int *p; } a3 = {&a[3][0][8]};
 // CHECK: cir.global external @a2 = #cir.global_view<@a, [3 : i32, 0 : i32, 8 : i32]> : !cir.ptr<!s32i>
-// CHECK: cir.global external @a3 = #cir.const_struct<{#cir.global_view<@a, [3 : i32, 0 : i32, 8 : i32]> : !cir.ptr<!s32i>}> : !ty_anon2E9_
+// CHECK: cir.global external @a3 = #cir.const_struct<{#cir.global_view<@a, [3 : i32, 0 : i32, 8 : i32]> : !cir.ptr<!s32i>}> : !ty_anon2E4_
 
 int p[10];
 int *p1 = &p[0];
 struct { int *x; } p2 = {&p[0]};
 // CHECK: cir.global external @p1 = #cir.global_view<@p> : !cir.ptr<!s32i>
-// CHECK: cir.global external @p2 = #cir.const_struct<{#cir.global_view<@p> : !cir.ptr<!s32i>}> : !ty_anon2E11_
+// CHECK: cir.global external @p2 = #cir.const_struct<{#cir.global_view<@p> : !cir.ptr<!s32i>}> : !ty_anon2E5_
 
 int q[10];
 int *q1 = q;
 struct { int *x; } q2 = {q};
 // CHECK: cir.global external @q1 = #cir.global_view<@q> : !cir.ptr<!s32i>
-// CHECK: cir.global external @q2 = #cir.const_struct<{#cir.global_view<@q> : !cir.ptr<!s32i>}> : !ty_anon2E13_
+// CHECK: cir.global external @q2 = #cir.const_struct<{#cir.global_view<@q> : !cir.ptr<!s32i>}> : !ty_anon2E6_
 
 int foo() {
     extern int optind;

clang/test/CIR/CodeGen/lambda.cpp

@@ -6,13 +6,13 @@ void fn() {
   a();
 }
 
-//      CHECK: !ty_anon2E2_ = !cir.struct<class "anon.2" {!u8i}>
+//      CHECK: !ty_anon2E0_ = !cir.struct<class "anon.0" {!u8i}>
 //  CHECK-DAG: module
 
 //      CHECK: cir.func lambda internal private @_ZZ2fnvENK3$_0clEv{{.*}}) extra
 
 //      CHECK:   cir.func @_Z2fnv()
-// CHECK-NEXT:     %0 = cir.alloca !ty_anon2E2_, !cir.ptr<!ty_anon2E2_>, ["a"]
+// CHECK-NEXT:     %0 = cir.alloca !ty_anon2E0_, !cir.ptr<!ty_anon2E0_>, ["a"]
 //      CHECK:   cir.call @_ZZ2fnvENK3$_0clEv
 
 void l0() {
@@ -23,15 +23,15 @@ void l0() {
 
 // CHECK: cir.func lambda internal private @_ZZ2l0vENK3$_0clEv({{.*}}) extra
 
-// CHECK: %0 = cir.alloca !cir.ptr<!ty_anon2E4_>, !cir.ptr<!cir.ptr<!ty_anon2E4_>>, ["this", init] {alignment = 8 : i64}
-// CHECK: cir.store %arg0, %0 : !cir.ptr<!ty_anon2E4_>, !cir.ptr<!cir.ptr<!ty_anon2E4_>>
-// CHECK: %1 = cir.load %0 : !cir.ptr<!cir.ptr<!ty_anon2E4_>>, !cir.ptr<!ty_anon2E4_>
-// CHECK: %2 = cir.get_member %1[0] {name = "i"} : !cir.ptr<!ty_anon2E4_> -> !cir.ptr<!cir.ptr<!s32i>>
+// CHECK: %0 = cir.alloca !cir.ptr<!ty_anon2E2_>, !cir.ptr<!cir.ptr<!ty_anon2E2_>>, ["this", init] {alignment = 8 : i64}
+// CHECK: cir.store %arg0, %0 : !cir.ptr<!ty_anon2E2_>, !cir.ptr<!cir.ptr<!ty_anon2E2_>>
+// CHECK: %1 = cir.load %0 : !cir.ptr<!cir.ptr<!ty_anon2E2_>>, !cir.ptr<!ty_anon2E2_>
+// CHECK: %2 = cir.get_member %1[0] {name = "i"} : !cir.ptr<!ty_anon2E2_> -> !cir.ptr<!cir.ptr<!s32i>>
 // CHECK: %3 = cir.load %2 : !cir.ptr<!cir.ptr<!s32i>>, !cir.ptr<!s32i>
 // CHECK: %4 = cir.load %3 : !cir.ptr<!s32i>, !s32i
 // CHECK: %5 = cir.const #cir.int<1> : !s32i
 // CHECK: %6 = cir.binop(add, %4, %5) nsw : !s32i
-// CHECK: %7 = cir.get_member %1[0] {name = "i"} : !cir.ptr<!ty_anon2E4_> -> !cir.ptr<!cir.ptr<!s32i>>
+// CHECK: %7 = cir.get_member %1[0] {name = "i"} : !cir.ptr<!ty_anon2E2_> -> !cir.ptr<!cir.ptr<!s32i>>
 // CHECK: %8 = cir.load %7 : !cir.ptr<!cir.ptr<!s32i>>, !cir.ptr<!s32i>
 // CHECK: cir.store %6, %8 : !s32i, !cir.ptr<!s32i>
 
@@ -45,15 +45,15 @@ auto g() {
   };
 }
 
-// CHECK: cir.func @_Z1gv() -> !ty_anon2E6_
-// CHECK: %0 = cir.alloca !ty_anon2E6_, !cir.ptr<!ty_anon2E6_>, ["__retval"] {alignment = 8 : i64}
+// CHECK: cir.func @_Z1gv() -> !ty_anon2E3_
+// CHECK: %0 = cir.alloca !ty_anon2E3_, !cir.ptr<!ty_anon2E3_>, ["__retval"] {alignment = 8 : i64}
 // CHECK: %1 = cir.alloca !s32i, !cir.ptr<!s32i>, ["i", init] {alignment = 4 : i64}
 // CHECK: %2 = cir.const #cir.int<12> : !s32i
 // CHECK: cir.store %2, %1 : !s32i, !cir.ptr<!s32i>
-// CHECK: %3 = cir.get_member %0[0] {name = "i"} : !cir.ptr<!ty_anon2E6_> -> !cir.ptr<!cir.ptr<!s32i>>
+// CHECK: %3 = cir.get_member %0[0] {name = "i"} : !cir.ptr<!ty_anon2E3_> -> !cir.ptr<!cir.ptr<!s32i>>
 // CHECK: cir.store %1, %3 : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
-// CHECK: %4 = cir.load %0 : !cir.ptr<!ty_anon2E6_>, !ty_anon2E6_
-// CHECK: cir.return %4 : !ty_anon2E6_
+// CHECK: %4 = cir.load %0 : !cir.ptr<!ty_anon2E3_>, !ty_anon2E3_
+// CHECK: cir.return %4 : !ty_anon2E3_
 
 auto g2() {
   int i = 12;
@@ -65,15 +65,15 @@ auto g2() {
 }
 
 // Should be same as above because of NRVO
-// CHECK: cir.func @_Z2g2v() -> !ty_anon2E8_
-// CHECK-NEXT: %0 = cir.alloca !ty_anon2E8_, !cir.ptr<!ty_anon2E8_>, ["__retval", init] {alignment = 8 : i64}
+// CHECK: cir.func @_Z2g2v() -> !ty_anon2E4_
+// CHECK-NEXT: %0 = cir.alloca !ty_anon2E4_, !cir.ptr<!ty_anon2E4_>, ["__retval", init] {alignment = 8 : i64}
 // CHECK-NEXT: %1 = cir.alloca !s32i, !cir.ptr<!s32i>, ["i", init] {alignment = 4 : i64}
 // CHECK-NEXT: %2 = cir.const #cir.int<12> : !s32i
 // CHECK-NEXT: cir.store %2, %1 : !s32i, !cir.ptr<!s32i>
-// CHECK-NEXT: %3 = cir.get_member %0[0] {name = "i"} : !cir.ptr<!ty_anon2E8_> -> !cir.ptr<!cir.ptr<!s32i>>
+// CHECK-NEXT: %3 = cir.get_member %0[0] {name = "i"} : !cir.ptr<!ty_anon2E4_> -> !cir.ptr<!cir.ptr<!s32i>>
 // CHECK-NEXT: cir.store %1, %3 : !cir.ptr<!s32i>, !cir.ptr<!cir.ptr<!s32i>>
-// CHECK-NEXT: %4 = cir.load %0 : !cir.ptr<!ty_anon2E8_>, !ty_anon2E8_
-// CHECK-NEXT: cir.return %4 : !ty_anon2E8_
+// CHECK-NEXT: %4 = cir.load %0 : !cir.ptr<!ty_anon2E4_>, !ty_anon2E4_
+// CHECK-NEXT: cir.return %4 : !ty_anon2E4_
 
 int f() {
   return g2()();
@@ -82,10 +82,10 @@ int f() {
 //      CHECK: cir.func @_Z1fv() -> !s32i
 // CHECK-NEXT:   %0 = cir.alloca !s32i, !cir.ptr<!s32i>, ["__retval"] {alignment = 4 : i64}
 // CHECK-NEXT:   cir.scope {
-// CHECK-NEXT:     %2 = cir.alloca !ty_anon2E8_, !cir.ptr<!ty_anon2E8_>, ["ref.tmp0"] {alignment = 8 : i64}
-// CHECK-NEXT:     %3 = cir.call @_Z2g2v() : () -> !ty_anon2E8_
-// CHECK-NEXT:     cir.store %3, %2 : !ty_anon2E8_, !cir.ptr<!ty_anon2E8_>
-// CHECK-NEXT:     %4 = cir.call @_ZZ2g2vENK3$_0clEv(%2) : (!cir.ptr<!ty_anon2E8_>) -> !s32i
+// CHECK-NEXT:     %2 = cir.alloca !ty_anon2E4_, !cir.ptr<!ty_anon2E4_>, ["ref.tmp0"] {alignment = 8 : i64}
+// CHECK-NEXT:     %3 = cir.call @_Z2g2v() : () -> !ty_anon2E4_
+// CHECK-NEXT:     cir.store %3, %2 : !ty_anon2E4_, !cir.ptr<!ty_anon2E4_>
+// CHECK-NEXT:     %4 = cir.call @_ZZ2g2vENK3$_0clEv(%2) : (!cir.ptr<!ty_anon2E4_>) -> !s32i
 // CHECK-NEXT:     cir.store %4, %0 : !s32i, !cir.ptr<!s32i>
 // CHECK-NEXT:   }
 // CHECK-NEXT:   %1 = cir.load %0 : !cir.ptr<!s32i>, !s32i
@@ -114,8 +114,8 @@ int g3() {
 
 // 1. Use `operator int (*)(int const&)()` to retrieve the fnptr to `__invoke()`.
 // CHECK:     %3 = cir.scope {
-// CHECK:       %7 = cir.alloca !ty_anon2E11_, !cir.ptr<!ty_anon2E11_>, ["ref.tmp0"] {alignment = 1 : i64}
-// CHECK:       %8 = cir.call @_ZZ2g3vENK3$_0cvPFiRKiEEv(%7) : (!cir.ptr<!ty_anon2E11_>) -> !cir.ptr<!cir.func<!s32i (!cir.ptr<!s32i>)>>
+// CHECK:       %7 = cir.alloca !ty_anon2E5_, !cir.ptr<!ty_anon2E5_>, ["ref.tmp0"] {alignment = 1 : i64}
+// CHECK:       %8 = cir.call @_ZZ2g3vENK3$_0cvPFiRKiEEv(%7) : (!cir.ptr<!ty_anon2E5_>) -> !cir.ptr<!cir.func<!s32i (!cir.ptr<!s32i>)>>
 // CHECK:       %9 = cir.unary(plus, %8) : !cir.ptr<!cir.func<!s32i (!cir.ptr<!s32i>)>>, !cir.ptr<!cir.func<!s32i (!cir.ptr<!s32i>)>>
 // CHECK:       cir.yield %9 : !cir.ptr<!cir.func<!s32i (!cir.ptr<!s32i>)>>
 // CHECK:     }