[flang-commits] [flang] Revert "[flang] Use outermost fir.dummy_scope for TBAA of local allocations. (#146006) (PR #177617)

via flang-commits flang-commits at lists.llvm.org
Fri Jan 23 09:04:26 PST 2026


https://github.com/jeanPerier created https://github.com/llvm/llvm-project/pull/177617

This reverts commit 90da61634a4accc9869b4e1cb1ac3736158c33e6.

See https://github.com/llvm/llvm-project/pull/177615 for more context about why this patch is and can now be reverted.

>From f58689c5bbb80c552e5f6ceb7e7be7ac0f1181c4 Mon Sep 17 00:00:00 2001
From: Jean Perier <jperier at nvidia.com>
Date: Fri, 23 Jan 2026 06:50:44 -0800
Subject: [PATCH] Revert "[flang] Use outermost fir.dummy_scope for TBAA of
 local allocations. (#146006)"

This reverts commit 90da61634a4accc9869b4e1cb1ac3736158c33e6.
---
 .../lib/Optimizer/Transforms/AddAliasTags.cpp | 28 +-----
 flang/test/Transforms/tbaa-for-local-vars.fir | 97 -------------------
 .../tbaa-target-inlined-results.fir           |  5 +-
 .../Transforms/tbaa-with-dummy-scope2.fir     | 54 ++++++-----
 4 files changed, 33 insertions(+), 151 deletions(-)
 delete mode 100644 flang/test/Transforms/tbaa-for-local-vars.fir

diff --git a/flang/lib/Optimizer/Transforms/AddAliasTags.cpp b/flang/lib/Optimizer/Transforms/AddAliasTags.cpp
index 3718848c05775..142e4c8d45c9f 100644
--- a/flang/lib/Optimizer/Transforms/AddAliasTags.cpp
+++ b/flang/lib/Optimizer/Transforms/AddAliasTags.cpp
@@ -213,10 +213,7 @@ class PassState {
   void processFunctionScopes(mlir::func::FuncOp func);
   // For the given fir.declare returns the dominating fir.dummy_scope
   // operation.
-  fir::DummyScopeOp getDeclarationScope(fir::DeclareOp declareOp) const;
-  // For the given fir.declare returns the outermost fir.dummy_scope
-  // in the current function.
-  fir::DummyScopeOp getOutermostScope(fir::DeclareOp declareOp) const;
+  fir::DummyScopeOp getDeclarationScope(fir::DeclareOp declareOp);
   // Returns true, if the given type of a memref of a FirAliasTagOpInterface
   // operation is a descriptor or contains a descriptor
   // (e.g. !fir.ref<!fir.type<Derived{f:!fir.box<!fir.heap<f32>>}>>).
@@ -356,8 +353,9 @@ void PassState::processFunctionScopes(mlir::func::FuncOp func) {
   }
 }
 
-fir::DummyScopeOp
-PassState::getDeclarationScope(fir::DeclareOp declareOp) const {
+// For the given fir.declare returns the dominating fir.dummy_scope
+// operation.
+fir::DummyScopeOp PassState::getDeclarationScope(fir::DeclareOp declareOp) {
   auto func = declareOp->getParentOfType<mlir::func::FuncOp>();
   assert(func && "fir.declare does not have parent func.func");
   auto &scopeOps = sortedScopeOperations.at(func);
@@ -368,15 +366,6 @@ PassState::getDeclarationScope(fir::DeclareOp declareOp) const {
   return nullptr;
 }
 
-fir::DummyScopeOp PassState::getOutermostScope(fir::DeclareOp declareOp) const {
-  auto func = declareOp->getParentOfType<mlir::func::FuncOp>();
-  assert(func && "fir.declare does not have parent func.func");
-  auto &scopeOps = sortedScopeOperations.at(func);
-  if (!scopeOps.empty())
-    return scopeOps[0];
-  return nullptr;
-}
-
 bool PassState::typeReferencesDescriptor(mlir::Type type) {
   type = fir::unwrapAllRefAndSeqType(type);
   if (mlir::isa<fir::BaseBoxType>(type))
@@ -830,15 +819,6 @@ void AddAliasTagsPass::runOnAliasInterface(fir::FirAliasTagOpInterface op,
     else
       unknownAllocOp = true;
 
-    if (auto declOp = source.origin.instantiationPoint) {
-      // Use the outermost scope for local allocations,
-      // because using the innermost scope may result
-      // in incorrect TBAA, when calls are inlined in MLIR.
-      auto declareOp = mlir::dyn_cast<fir::DeclareOp>(declOp);
-      assert(declareOp && "Instantiation point must be fir.declare");
-      scopeOp = state.getOutermostScope(declareOp);
-    }
-
     if (unknownAllocOp) {
       LLVM_DEBUG(llvm::dbgs().indent(2)
                  << "WARN: unknown defining op for SourceKind::Allocate " << *op
diff --git a/flang/test/Transforms/tbaa-for-local-vars.fir b/flang/test/Transforms/tbaa-for-local-vars.fir
deleted file mode 100644
index fde5c400c75ed..0000000000000
--- a/flang/test/Transforms/tbaa-for-local-vars.fir
+++ /dev/null
@@ -1,97 +0,0 @@
-// Test TBAA tags assignment for access off the fir.declare
-// placed in the middle of the routine (e.g. a temporary).
-// Original example:
-// module m
-//   type t
-//      real :: x
-//   end type t
-// contains
-//   subroutine bar(this)
-//     class(t), intent(out) :: this
-//     this%x = 1.0
-//   end subroutine bar
-//   function foo() result(res)
-//     type(t) :: res
-//     call bar(res)
-//   end function foo
-//   subroutine test(arg)
-//     type(t) :: var
-//     var = foo()
-//     arg = var%x
-//   end subroutine test
-// end module m
-//
-// The calls were manually inlined in FIR with fir.save_result's
-// destination operand being used instead of the temporary
-// alloca of the result inside foo. Runtime calls were removed
-// to reduce the test.
-// The temporary function result fir.declare is then dominated
-// by fir.dummy_scope of the foo function. If we use this scope
-// to assign the TBAA local-alloc tag to the accesses of
-// the temporary, then it won't conflict with the TBAA dummy tag
-// assigned to the accesses of this argument of bar.
-// That would be incorrect, because they access the same memory.
-// Check that the local-alloc tag is placed into the outermost
-// scope's TBAA tree.
-// RUN: fir-opt --fir-add-alias-tags %s | FileCheck %s
-
-// CHECK: #[[$SCOPE_2:.+]] = #llvm.tbaa_root<id = "Flang function root _QMmPtest - Scope 2">
-// CHECK: #[[$SCOPE_1:.+]] = #llvm.tbaa_root<id = "Flang function root _QMmPtest">
-// CHECK: #[[$ANY_ACCESS2:.+]] = #llvm.tbaa_type_desc<id = "any access", members = {<#[[$SCOPE_2]], 0>}>
-// CHECK: #[[$ANY_ACCESS1:.+]] = #llvm.tbaa_type_desc<id = "any access", members = {<#[[$SCOPE_1]], 0>}>
-// CHECK: #[[$ANY_DATA2:.+]] = #llvm.tbaa_type_desc<id = "any data access", members = {<#[[$ANY_ACCESS2]], 0>}>
-// CHECK: #[[$ANY_DATA1:.+]] = #llvm.tbaa_type_desc<id = "any data access", members = {<#[[$ANY_ACCESS1]], 0>}>
-// CHECK: #[[$DUMMY_ARG2:.+]] = #llvm.tbaa_type_desc<id = "dummy arg data", members = {<#[[$ANY_DATA2]], 0>}>
-// CHECK: #[[$ALLOCATED_DATA1:.+]] = #llvm.tbaa_type_desc<id = "allocated data", members = {<#[[$ANY_DATA1]], 0>}>
-// CHECK: #[[$DUMMY_ARG1:.+]] = #llvm.tbaa_type_desc<id = "dummy arg data", members = {<#[[$ANY_DATA1]], 0>}>
-// CHECK: #[[$ALLOCATED_DATA1_TAG:.+]] = #llvm.tbaa_tag<base_type = #[[$ALLOCATED_DATA1]], access_type = #[[$ALLOCATED_DATA1]], offset = 0>
-// CHECK: #[[$BAR_THIS2:.+]] = #llvm.tbaa_type_desc<id = "dummy arg data/_QMmFbarEthis", members = {<#[[$DUMMY_ARG2]], 0>}>
-// CHECK: #[[$TEST_VAR1:.+]] = #llvm.tbaa_type_desc<id = "allocated data/_QMmFtestEvar", members = {<#[[$ALLOCATED_DATA1]], 0>}>
-// CHECK: #[[$TEST_ARG1:.+]] = #llvm.tbaa_type_desc<id = "dummy arg data/_QMmFtestEarg", members = {<#[[$DUMMY_ARG1]], 0>}>
-// CHECK: #[[$BAR_THIS2_TAG:.+]] = #llvm.tbaa_tag<base_type = #[[$BAR_THIS2]], access_type = #[[$BAR_THIS2]], offset = 0>
-// CHECK: #[[$TEST_VAR1_TAG:.+]] = #llvm.tbaa_tag<base_type = #[[$TEST_VAR1]], access_type = #[[$TEST_VAR1]], offset = 0>
-// CHECK: #[[$TEST_ARG2_TAG:.+]] = #llvm.tbaa_tag<base_type = #[[$TEST_ARG1]], access_type = #[[$TEST_ARG1]], offset = 0>
-
-// CHECK-LABEL:   func.func @_QMmPtest(
-// CHECK-SAME:      %[[ARG0:.*]]: !fir.ref<f32> {fir.bindc_name = "arg"}) {
-// CHECK:           %[[VAL_0:.*]] = arith.constant 1.000000e+00 : f32
-// CHECK:           %[[VAL_1:.*]] = fir.alloca !fir.type<_QMmTt{x:f32}> {bindc_name = ".result"}
-// CHECK:           %[[VAL_2:.*]] = fir.dummy_scope : !fir.dscope
-// CHECK:           %[[VAL_3:.*]] = fir.declare %[[ARG0]] dummy_scope %[[VAL_2]] {uniq_name = "_QMmFtestEarg"} : (!fir.ref<f32>, !fir.dscope) -> !fir.ref<f32>
-// CHECK:           %[[VAL_6:.*]] = fir.dummy_scope : !fir.dscope
-// CHECK:           %[[VAL_7:.*]] = fir.declare %[[VAL_1]] {uniq_name = "_QMmFfooEres"} : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<!fir.type<_QMmTt{x:f32}>>
-// CHECK:           %[[VAL_8:.*]] = fir.embox %[[VAL_7]] : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.box<!fir.type<_QMmTt{x:f32}>>
-// CHECK:           %[[VAL_9:.*]] = fir.convert %[[VAL_8]] : (!fir.box<!fir.type<_QMmTt{x:f32}>>) -> !fir.class<!fir.type<_QMmTt{x:f32}>>
-// CHECK:           %[[VAL_10:.*]] = fir.dummy_scope : !fir.dscope
-// CHECK:           %[[VAL_11:.*]] = fir.declare %[[VAL_9]] dummy_scope %[[VAL_10]] {fortran_attrs = #fir.var_attrs<intent_out>, uniq_name = "_QMmFbarEthis"} : (!fir.class<!fir.type<_QMmTt{x:f32}>>, !fir.dscope) -> !fir.class<!fir.type<_QMmTt{x:f32}>>
-// CHECK:           %[[VAL_12:.*]] = fir.coordinate_of %[[VAL_11]], x : (!fir.class<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<f32>
-// CHECK:           fir.store %[[VAL_0]] to %[[VAL_12]] {tbaa = [#[[$BAR_THIS2_TAG]]]} : !fir.ref<f32>
-// CHECK:           %[[VAL_13:.*]] = fir.declare %[[VAL_1]] {uniq_name = ".tmp.func_result"} : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<!fir.type<_QMmTt{x:f32}>>
-// CHECK:           %[[VAL_14:.*]] = fir.coordinate_of %[[VAL_13]], x : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<f32>
-// CHECK:           %[[VAL_16:.*]] = fir.load %[[VAL_14]] {tbaa = [#[[$ALLOCATED_DATA1_TAG]]]} : !fir.ref<f32>
-module attributes {dlti.dl_spec = #dlti.dl_spec<!llvm.ptr = dense<64> : vector<4xi64>, i1 = dense<8> : vector<2xi64>, i8 = dense<8> : vector<2xi64>, i16 = dense<16> : vector<2xi64>, i32 = dense<32> : vector<2xi64>, i64 = dense<[32, 64]> : vector<2xi64>, f16 = dense<16> : vector<2xi64>, f64 = dense<64> : vector<2xi64>, f128 = dense<128> : vector<2xi64>, "dlti.endianness" = "little">, llvm.data_layout = ""} {
-func.func @_QMmPtest(%arg0: !fir.ref<f32> {fir.bindc_name = "arg"}) {
-  %cst = arith.constant 1.000000e+00 : f32
-  %0 = fir.alloca !fir.type<_QMmTt{x:f32}> {bindc_name = ".result"}
-  %1 = fir.dummy_scope : !fir.dscope
-  %2 = fir.declare %arg0 dummy_scope %1 {uniq_name = "_QMmFtestEarg"} : (!fir.ref<f32>, !fir.dscope) -> !fir.ref<f32>
-  %3 = fir.alloca !fir.type<_QMmTt{x:f32}> {bindc_name = "var", uniq_name = "_QMmFtestEvar"}
-  %4 = fir.declare %3 {uniq_name = "_QMmFtestEvar"} : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<!fir.type<_QMmTt{x:f32}>>
-  %5 = fir.dummy_scope : !fir.dscope
-  %6 = fir.declare %0 {uniq_name = "_QMmFfooEres"} : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<!fir.type<_QMmTt{x:f32}>>
-  %7 = fir.embox %6 : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.box<!fir.type<_QMmTt{x:f32}>>
-  %8 = fir.convert %7 : (!fir.box<!fir.type<_QMmTt{x:f32}>>) -> !fir.class<!fir.type<_QMmTt{x:f32}>>
-  %9 = fir.dummy_scope : !fir.dscope
-  %10 = fir.declare %8 dummy_scope %9 {fortran_attrs = #fir.var_attrs<intent_out>, uniq_name = "_QMmFbarEthis"} : (!fir.class<!fir.type<_QMmTt{x:f32}>>, !fir.dscope) -> !fir.class<!fir.type<_QMmTt{x:f32}>>
-  %14 = fir.coordinate_of %10, x : (!fir.class<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<f32>
-  fir.store %cst to %14 : !fir.ref<f32>
-  %15 = fir.declare %0 {uniq_name = ".tmp.func_result"} : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<!fir.type<_QMmTt{x:f32}>>
-  %16 = fir.coordinate_of %15, x : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<f32>
-  %17 = fir.coordinate_of %4, x : (!fir.ref<!fir.type<_QMmTt{x:f32}>>) -> !fir.ref<f32>
-  %18 = fir.load %16 : !fir.ref<f32>
-  fir.store %18 to %17 : !fir.ref<f32>
-  %19 = fir.load %17 : !fir.ref<f32>
-  fir.store %19 to %2 : !fir.ref<f32>
-  return
-}
-}
diff --git a/flang/test/Transforms/tbaa-target-inlined-results.fir b/flang/test/Transforms/tbaa-target-inlined-results.fir
index b2919804abdd6..8fc354f0c2c00 100644
--- a/flang/test/Transforms/tbaa-target-inlined-results.fir
+++ b/flang/test/Transforms/tbaa-target-inlined-results.fir
@@ -27,13 +27,10 @@ module attributes {dlti.dl_spec = #dlti.dl_spec<!llvm.ptr<270> = dense<32> : vec
 
 
 // CHECK: #[[TBAA_ROOT:.*]] = #llvm.tbaa_root<id = "Flang function root _QMmPfoo - Scope 1">
-// CHECK: #[[TBAA_ROOT1:.*]] = #llvm.tbaa_root<id = "Flang function root _QMmPfoo">
 // CHECK: #[[TBAA_TYPE_DESC:.*]] = #llvm.tbaa_type_desc<id = "any access", members = {<#[[TBAA_ROOT]], 0>}>
-// CHECK: #[[TBAA_TYPE_DESC1:.*]] = #llvm.tbaa_type_desc<id = "any access", members = {<#[[TBAA_ROOT1]], 0>}>
 // CHECK: #[[TBAA_TYPE_DESC2:.*]] = #llvm.tbaa_type_desc<id = "any data access", members = {<#[[TBAA_TYPE_DESC]], 0>}>
-// CHECK: #[[TBAA_TYPE_DESC3:.*]] = #llvm.tbaa_type_desc<id = "any data access", members = {<#[[TBAA_TYPE_DESC1]], 0>}>
 // CHECK: #[[TBAA_TYPE_DESC4:.*]] = #llvm.tbaa_type_desc<id = "global data", members = {<#[[TBAA_TYPE_DESC2]], 0>}>
-// CHECK: #[[TBAA_TYPE_DESC5:.*]] = #llvm.tbaa_type_desc<id = "target data", members = {<#[[TBAA_TYPE_DESC3]], 0>}>
+// CHECK: #[[TBAA_TYPE_DESC5:.*]] = #llvm.tbaa_type_desc<id = "target data", members = {<#[[TBAA_TYPE_DESC2]], 0>}>
 // CHECK: #[[TBAA_TAG:.*]] = #llvm.tbaa_tag<base_type = #[[TBAA_TYPE_DESC5]], access_type = #[[TBAA_TYPE_DESC5]], offset = 0>
 
 // CHECK-LABEL: func.func @_QMmPfoo
diff --git a/flang/test/Transforms/tbaa-with-dummy-scope2.fir b/flang/test/Transforms/tbaa-with-dummy-scope2.fir
index 6f5ed69fbc9c6..1c6eb32c974c4 100644
--- a/flang/test/Transforms/tbaa-with-dummy-scope2.fir
+++ b/flang/test/Transforms/tbaa-with-dummy-scope2.fir
@@ -87,30 +87,32 @@ func.func @_QPtest2() attributes {noinline} {
   return
 }
 }
-// CHECK: #[[$ATTR_0:.+]] = #llvm.tbaa_root<id = "Flang function root _QPtest2">
-// CHECK: #[[$ATTR_1:.+]] = #llvm.tbaa_root<id = "Flang function root _QPtest2 - Scope 1">
-// CHECK: #[[$ANY_ACCESS_0:.+]] = #llvm.tbaa_type_desc<id = "any access", members = {<#[[$ATTR_0]], 0>}>
-// CHECK: #[[$ANY_ACCESS_1:.+]] = #llvm.tbaa_type_desc<id = "any access", members = {<#[[$ATTR_1]], 0>}>
-// CHECK: #[[$ANY_DATA_0:.+]] = #llvm.tbaa_type_desc<id = "any data access", members = {<#[[$ANY_ACCESS_0]], 0>}>
-// CHECK: #[[$ANY_DATA_1:.+]] = #llvm.tbaa_type_desc<id = "any data access", members = {<#[[$ANY_ACCESS_1]], 0>}>
-// CHECK: #[[$LOCAL_ATTR_0:.+]] = #llvm.tbaa_type_desc<id = "allocated data", members = {<#[[$ANY_DATA_0]], 0>}>
-// CHECK: #[[$ATTR_6:.+]] = #llvm.tbaa_type_desc<id = "dummy arg data", members = {<#[[$ANY_DATA_1]], 0>}>
-// CHECK: #[[$ATTR_7:.+]] = #llvm.tbaa_type_desc<id = "global data", members = {<#[[$ANY_DATA_0]], 0>}>
-// CHECK: #[[$LOCAL_ATTR_1:.+]] = #llvm.tbaa_type_desc<id = "allocated data/_QFtest2FinnerEy", members = {<#[[$LOCAL_ATTR_0]], 0>}>
-// CHECK: #[[$ATTR_8:.+]] = #llvm.tbaa_type_desc<id = "dummy arg data/_QFtest2FinnerEx", members = {<#[[$ATTR_6]], 0>}>
-// CHECK: #[[$ATTR_9:.+]] = #llvm.tbaa_type_desc<id = "global data/_QMmEglob", members = {<#[[$ATTR_7]], 0>}>
-// CHECK: #[[$LOCAL_ATTR_2:.+]] = #llvm.tbaa_tag<base_type = #[[$LOCAL_ATTR_1]], access_type = #[[$LOCAL_ATTR_1]], offset = 0>
-// CHECK: #[[$ATTR_10:.+]] = #llvm.tbaa_tag<base_type = #[[$ATTR_8]], access_type = #[[$ATTR_8]], offset = 0>
-// CHECK: #[[$ATTR_11:.+]] = #llvm.tbaa_tag<base_type = #[[$ATTR_9]], access_type = #[[$ATTR_9]], offset = 0>
+// CHECK: #[[$ATTR_0:.+]] = #llvm.tbaa_root<id = "Flang function root _QPtest2 - Scope 1">
+// CHECK: #[[$ATTR_1:.+]] = #llvm.tbaa_root<id = "Flang function root _QPtest2">
+// CHECK: #[[$ATTR_2:.+]] = #llvm.tbaa_type_desc<id = "any access", members = {<#[[$ATTR_0]], 0>}>
+// CHECK: #[[$ATTR_3:.+]] = #llvm.tbaa_type_desc<id = "any access", members = {<#[[$ATTR_1]], 0>}>
+// CHECK: #[[$ATTR_4:.+]] = #llvm.tbaa_type_desc<id = "any data access", members = {<#[[$ATTR_2]], 0>}>
+// CHECK: #[[$ATTR_5:.+]] = #llvm.tbaa_type_desc<id = "any data access", members = {<#[[$ATTR_3]], 0>}>
+// CHECK: #[[$ATTR_6:.+]] = #llvm.tbaa_type_desc<id = "allocated data", members = {<#[[$ATTR_4]], 0>}>
+// CHECK: #[[$ATTR_7:.+]] = #llvm.tbaa_type_desc<id = "dummy arg data", members = {<#[[$ATTR_4]], 0>}>
+// CHECK: #[[$ATTR_8:.+]] = #llvm.tbaa_type_desc<id = "global data", members = {<#[[$ATTR_5]], 0>}>
+// CHECK: #[[$ATTR_9:.+]] = #llvm.tbaa_type_desc<id = "allocated data/_QFtest2FinnerEy", members = {<#[[$ATTR_6]], 0>}>
+// CHECK: #[[$ATTR_10:.+]] = #llvm.tbaa_type_desc<id = "dummy arg data/_QFtest2FinnerEx", members = {<#[[$ATTR_7]], 0>}>
+// CHECK: #[[$ATTR_11:.+]] = #llvm.tbaa_type_desc<id = "global data/_QMmEglob", members = {<#[[$ATTR_8]], 0>}>
+// CHECK: #[[$ATTR_12:.+]] = #llvm.tbaa_tag<base_type = #[[$ATTR_9]], access_type = #[[$ATTR_9]], offset = 0>
+// CHECK: #[[$ATTR_13:.+]] = #llvm.tbaa_tag<base_type = #[[$ATTR_10]], access_type = #[[$ATTR_10]], offset = 0>
+// CHECK: #[[$ATTR_14:.+]] = #llvm.tbaa_tag<base_type = #[[$ATTR_11]], access_type = #[[$ATTR_11]], offset = 0>
 // CHECK-LABEL:   func.func @_QPtest2() attributes {noinline} {
-// CHECK:           %[[VAL_2:.*]] = fir.alloca i32 {bindc_name = "y", uniq_name = "_QFtest2FinnerEy"}
-// CHECK:           %[[VAL_3:.*]] = fir.dummy_scope : !fir.dscope
-// CHECK:           %[[VAL_4:.*]] = fir.address_of(@_QMmEglob) : !fir.ref<i32>
-// CHECK:           %[[VAL_5:.*]] = fir.declare %[[VAL_4]] {uniq_name = "_QMmEglob"} : (!fir.ref<i32>) -> !fir.ref<i32>
-// CHECK:           %[[VAL_6:.*]] = fir.dummy_scope : !fir.dscope
-// CHECK:           %[[VAL_7:.*]] = fir.declare %[[VAL_5]] dummy_scope %[[VAL_6]] {uniq_name = "_QFtest2FinnerEx"} : (!fir.ref<i32>, !fir.dscope) -> !fir.ref<i32>
-// CHECK:           %[[VAL_8:.*]] = fir.declare %[[VAL_2]] {uniq_name = "_QFtest2FinnerEy"} : (!fir.ref<i32>) -> !fir.ref<i32>
-// CHECK:           fir.store %{{.*}} to %[[VAL_8]] {tbaa = [#[[$LOCAL_ATTR_2]]]}  : !fir.ref<i32>
-// CHECK:           %[[VAL_9:.*]] = fir.load %[[VAL_8]] {tbaa = [#[[$LOCAL_ATTR_2]]]} : !fir.ref<i32>
-// CHECK:           fir.store %[[VAL_9]] to %[[VAL_7]] {tbaa = [#[[$ATTR_10]]]} : !fir.ref<i32>
-// CHECK:           fir.store %{{.*}} to %[[VAL_5]] {tbaa = [#[[$ATTR_11]]]} : !fir.ref<i32>
+// CHECK:           %[[CONSTANT_0:.*]] = arith.constant 1 : i32
+// CHECK:           %[[CONSTANT_1:.*]] = arith.constant 2 : i32
+// CHECK:           %[[ALLOCA_0:.*]] = fir.alloca i32 {bindc_name = "y", uniq_name = "_QFtest2FinnerEy"}
+// CHECK:           %[[DUMMY_SCOPE_0:.*]] = fir.dummy_scope : !fir.dscope
+// CHECK:           %[[ADDRESS_OF_0:.*]] = fir.address_of(@_QMmEglob) : !fir.ref<i32>
+// CHECK:           %[[DECLARE_0:.*]] = fir.declare %[[ADDRESS_OF_0]] {uniq_name = "_QMmEglob"} : (!fir.ref<i32>) -> !fir.ref<i32>
+// CHECK:           %[[DUMMY_SCOPE_1:.*]] = fir.dummy_scope : !fir.dscope
+// CHECK:           %[[DECLARE_1:.*]] = fir.declare %[[DECLARE_0]] dummy_scope %[[DUMMY_SCOPE_1]] {uniq_name = "_QFtest2FinnerEx"} : (!fir.ref<i32>, !fir.dscope) -> !fir.ref<i32>
+// CHECK:           %[[DECLARE_2:.*]] = fir.declare %[[ALLOCA_0]] {uniq_name = "_QFtest2FinnerEy"} : (!fir.ref<i32>) -> !fir.ref<i32>
+// CHECK:           fir.store %[[CONSTANT_0]] to %[[DECLARE_2]] {tbaa = [#[[$ATTR_12]]]} : !fir.ref<i32>
+// CHECK:           %[[LOAD_0:.*]] = fir.load %[[DECLARE_2]] {tbaa = [#[[$ATTR_12]]]} : !fir.ref<i32>
+// CHECK:           fir.store %[[LOAD_0]] to %[[DECLARE_1]] {tbaa = [#[[$ATTR_13]]]} : !fir.ref<i32>
+// CHECK:           fir.store %[[CONSTANT_1]] to %[[DECLARE_0]] {tbaa = [#[[$ATTR_14]]]} : !fir.ref<i32>



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