[Mlir-commits] [flang] [mlir] [flang][openacc][openmp] Support implicit casting on the atomic interface (PR #114390)
llvmlistbot at llvm.org
llvmlistbot at llvm.org
Thu Oct 31 04:09:00 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-openacc
@llvm/pr-subscribers-mlir-openacc
Author: None (khaki3)
<details>
<summary>Changes</summary>
ACCMP atomics do not support type conversion. Specifically, I have encountered semantically incorrect code for atomic reads.
Example:
```
program main
implicit none
real(8) :: n
integer :: x
x = 1.0
!$acc atomic capture
n = x
x = n
!$acc end atomic
end program main
```
We have this error when compiling it with flang-new: `error: loc("rep1.f90":6:9): expected three operations in atomic.capture region (one terminator, and two atomic ops)`
Yet, in the following generated FIR code, we observe three issues.
1. `fir.convert` intrudes into the capture region.
2. An incorrect temporary (`%2`) is being update instead of `n`.
3. If we allow `n` in place of `%2`, the operand types of `atomic.read` do not match. Introducing a `!fir.ref<i32> -> !fir.ref<f64>` conversion on `x` is inaccurate because we need to convert the value of `x`.
```
%2 = "fir.alloca"() <{in_type = i32, operandSegmentSizes = array<i32: 0, 0>}> : () -> !fir.ref<i32>
%3 = "fir.alloca"() <{bindc_name = "n", in_type = f64, operandSegmentSizes = array<i32: 0, 0>, uniq_name = "_QFEn"}> : () -> !fir.ref<f64>
%4:2 = "hlfir.declare"(%3) <{operandSegmentSizes = array<i32: 1, 0, 0, 0>, uniq_name = "_QFEn"}> : (!fir.ref<f64>) -> (!fir.ref<f64>, !fir.ref<f64>)
%5 = "fir.alloca"() <{bindc_name = "x", in_type = i32, operandSegmentSizes = array<i32: 0, 0>, uniq_name = "_QFEx"}> : () -> !fir.ref<i32>
%6:2 = "hlfir.declare"(%5) <{operandSegmentSizes = array<i32: 1, 0, 0, 0>, uniq_name = "_QFEx"}> : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%7 = "arith.constant"() <{value = 1 : i32}> : () -> i32
"hlfir.assign"(%7, %6#<!-- -->0) : (i32, !fir.ref<i32>) -> ()
%8 = "fir.load"(%4#<!-- -->0) : (!fir.ref<f64>) -> f64
%9 = "fir.convert"(%8) : (f64) -> i32
"fir.store"(%9, %2) : (i32, !fir.ref<i32>) -> ()
%10 = "fir.load"(%6#<!-- -->0) : (!fir.ref<i32>) -> i32
%11 = "fir.convert"(%10) : (i32) -> f64
"acc.atomic.capture"() ({
"acc.atomic.read"(%2, %6#<!-- -->1) <{element_type = f64}> : (!fir.ref<i32>, !fir.ref<i32>) -> ()
%12 = "fir.convert"(%11) : (f64) -> i32
"acc.atomic.write"(%2, %12) : (!fir.ref<i32>, i32) -> ()
"acc.terminator"() : () -> ()
}) : () -> ()
```
This PR updates `flang/lib/Lower/DirectivesCommon.h` to solve the issues by taking the following approaches (from top to bottom):
1. Move `fir.convert` for `atomic.write` out of the capture region.
2. Remove the `!fir.ref<i32> -> !fir.ref<f64>` conversion found in `genOmpAccAtomicRead`.
3. Eliminate unnecessary `genExprAddr` calls on the RHS, which create an invalid temporary for `x = 1.0`.
4. When generating a capture operation, refer to the original LHS instead of the type-casted RHS.
Here, we have to allow for the cases where the operand types of `atomic.read` differ from one another. Thus, this PR also removes the `AllTypesMatch` trait from both `acc.atomic.read` and `omp.atomic.read`.
The example code is converted as follows:
```
%0 = fir.alloca f64 {bindc_name = "n", uniq_name = "_QFEn"}
%1:2 = hlfir.declare %0 {uniq_name = "_QFEn"} : (!fir.ref<f64>) -> (!fir.ref<f64>, !fir.ref<f64>)
%2 = fir.alloca i32 {bindc_name = "x", uniq_name = "_QFEx"}
%3:2 = hlfir.declare %2 {uniq_name = "_QFEx"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%c1_i32 = arith.constant 1 : i32
hlfir.assign %c1_i32 to %3#<!-- -->0 : i32, !fir.ref<i32>
%4 = fir.load %1#<!-- -->0 : !fir.ref<f64>
%5 = fir.convert %4 : (f64) -> i32
acc.atomic.capture {
acc.atomic.read %1#<!-- -->1 = %3#<!-- -->1 : !fir.ref<f64>, !fir.ref<i32>, i32
acc.atomic.write %3#<!-- -->1 = %5 : !fir.ref<i32>, i32
}
```
---
Patch is 26.94 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/114390.diff
9 Files Affected:
- (modified) flang/lib/Lower/DirectivesCommon.h (+23-32)
- (modified) flang/test/Fir/convert-to-llvm-openmp-and-fir.fir (+2-2)
- (modified) flang/test/Lower/OpenACC/acc-atomic-capture.f90 (+94-9)
- (modified) flang/test/Lower/OpenACC/acc-atomic-read.f90 (+9-10)
- (modified) flang/test/Lower/OpenACC/acc-atomic-update-array.f90 (+2-2)
- (modified) flang/test/Lower/OpenMP/atomic-capture.f90 (+3-3)
- (modified) flang/test/Lower/OpenMP/atomic-read.f90 (+7-7)
- (modified) mlir/include/mlir/Dialect/OpenACC/OpenACCOps.td (+2-3)
- (modified) mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td (+3-2)
``````````diff
diff --git a/flang/lib/Lower/DirectivesCommon.h b/flang/lib/Lower/DirectivesCommon.h
index 421a44b128c017..88514b16743278 100644
--- a/flang/lib/Lower/DirectivesCommon.h
+++ b/flang/lib/Lower/DirectivesCommon.h
@@ -179,7 +179,11 @@ static inline void genOmpAccAtomicWriteStatement(
fir::FirOpBuilder &firOpBuilder = converter.getFirOpBuilder();
mlir::Type varType = fir::unwrapRefType(lhsAddr.getType());
+ // Create a conversion outside the capture block.
+ auto insertionPoint = firOpBuilder.saveInsertionPoint();
+ firOpBuilder.setInsertionPointAfter(rhsExpr.getDefiningOp());
rhsExpr = firOpBuilder.createConvert(loc, varType, rhsExpr);
+ firOpBuilder.restoreInsertionPoint(insertionPoint);
processOmpAtomicTODO<AtomicListT>(varType, loc);
@@ -410,10 +414,6 @@ void genOmpAccAtomicRead(Fortran::lower::AbstractConverter &converter,
fir::getBase(converter.genExprAddr(fromExpr, stmtCtx));
mlir::Value toAddress = fir::getBase(converter.genExprAddr(
*Fortran::semantics::GetExpr(assignmentStmtVariable), stmtCtx));
- fir::FirOpBuilder &builder = converter.getFirOpBuilder();
- if (fromAddress.getType() != toAddress.getType())
- fromAddress =
- builder.create<fir::ConvertOp>(loc, toAddress.getType(), fromAddress);
genOmpAccAtomicCaptureStatement(converter, fromAddress, toAddress,
leftHandClauseList, rightHandClauseList,
elementType, loc);
@@ -497,23 +497,12 @@ void genOmpAccAtomicCapture(Fortran::lower::AbstractConverter &converter,
// a `atomic.read`, `atomic.write`, or `atomic.update` operation
// inside `atomic.capture`
Fortran::lower::StatementContext stmtCtx;
- mlir::Value stmt1LHSArg, stmt1RHSArg, stmt2LHSArg, stmt2RHSArg;
- mlir::Type elementType;
// LHS evaluations are common to all combinations of `atomic.capture`
- stmt1LHSArg = fir::getBase(converter.genExprAddr(assign1.lhs, stmtCtx));
- stmt2LHSArg = fir::getBase(converter.genExprAddr(assign2.lhs, stmtCtx));
+ mlir::Value stmt1LHSArg =
+ fir::getBase(converter.genExprAddr(assign1.lhs, stmtCtx));
+ mlir::Value stmt2LHSArg =
+ fir::getBase(converter.genExprAddr(assign2.lhs, stmtCtx));
- // Operation specific RHS evaluations
- if (Fortran::semantics::checkForSingleVariableOnRHS(stmt1)) {
- // Atomic capture construct is of the form [capture-stmt, update-stmt] or
- // of the form [capture-stmt, write-stmt]
- stmt1RHSArg = fir::getBase(converter.genExprAddr(assign1.rhs, stmtCtx));
- stmt2RHSArg = fir::getBase(converter.genExprValue(assign2.rhs, stmtCtx));
- } else {
- // Atomic capture construct is of the form [update-stmt, capture-stmt]
- stmt1RHSArg = fir::getBase(converter.genExprValue(assign1.rhs, stmtCtx));
- stmt2RHSArg = fir::getBase(converter.genExprAddr(assign2.lhs, stmtCtx));
- }
// Type information used in generation of `atomic.update` operation
mlir::Type stmt1VarType =
fir::getBase(converter.genExprValue(assign1.lhs, stmtCtx)).getType();
@@ -545,44 +534,46 @@ void genOmpAccAtomicCapture(Fortran::lower::AbstractConverter &converter,
// Atomic capture construct is of the form [capture-stmt, update-stmt]
const Fortran::semantics::SomeExpr &fromExpr =
*Fortran::semantics::GetExpr(stmt1Expr);
- elementType = converter.genType(fromExpr);
+ mlir::Type elementType = converter.genType(fromExpr);
genOmpAccAtomicCaptureStatement<AtomicListT>(
- converter, stmt1RHSArg, stmt1LHSArg,
+ converter, stmt2LHSArg, stmt1LHSArg,
/*leftHandClauseList=*/nullptr,
/*rightHandClauseList=*/nullptr, elementType, loc);
genOmpAccAtomicUpdateStatement<AtomicListT>(
- converter, stmt1RHSArg, stmt2VarType, stmt2Var, stmt2Expr,
+ converter, stmt2LHSArg, stmt2VarType, stmt2Var, stmt2Expr,
/*leftHandClauseList=*/nullptr,
/*rightHandClauseList=*/nullptr, loc, atomicCaptureOp);
} else {
// Atomic capture construct is of the form [capture-stmt, write-stmt]
+ firOpBuilder.setInsertionPoint(atomicCaptureOp);
+ mlir::Value stmt2RHSArg =
+ fir::getBase(converter.genExprValue(assign2.rhs, stmtCtx));
+ firOpBuilder.setInsertionPointToStart(&block);
const Fortran::semantics::SomeExpr &fromExpr =
*Fortran::semantics::GetExpr(stmt1Expr);
- elementType = converter.genType(fromExpr);
+ mlir::Type elementType = converter.genType(fromExpr);
genOmpAccAtomicCaptureStatement<AtomicListT>(
- converter, stmt1RHSArg, stmt1LHSArg,
+ converter, stmt2LHSArg, stmt1LHSArg,
/*leftHandClauseList=*/nullptr,
/*rightHandClauseList=*/nullptr, elementType, loc);
genOmpAccAtomicWriteStatement<AtomicListT>(
- converter, stmt1RHSArg, stmt2RHSArg,
+ converter, stmt2LHSArg, stmt2RHSArg,
/*leftHandClauseList=*/nullptr,
/*rightHandClauseList=*/nullptr, loc);
}
} else {
// Atomic capture construct is of the form [update-stmt, capture-stmt]
- firOpBuilder.setInsertionPointToEnd(&block);
const Fortran::semantics::SomeExpr &fromExpr =
*Fortran::semantics::GetExpr(stmt2Expr);
- elementType = converter.genType(fromExpr);
- genOmpAccAtomicCaptureStatement<AtomicListT>(
- converter, stmt1LHSArg, stmt2LHSArg,
- /*leftHandClauseList=*/nullptr,
- /*rightHandClauseList=*/nullptr, elementType, loc);
- firOpBuilder.setInsertionPointToStart(&block);
+ mlir::Type elementType = converter.genType(fromExpr);
genOmpAccAtomicUpdateStatement<AtomicListT>(
converter, stmt1LHSArg, stmt1VarType, stmt1Var, stmt1Expr,
/*leftHandClauseList=*/nullptr,
/*rightHandClauseList=*/nullptr, loc, atomicCaptureOp);
+ genOmpAccAtomicCaptureStatement<AtomicListT>(
+ converter, stmt1LHSArg, stmt2LHSArg,
+ /*leftHandClauseList=*/nullptr,
+ /*rightHandClauseList=*/nullptr, elementType, loc);
}
firOpBuilder.setInsertionPointToEnd(&block);
if constexpr (std::is_same<AtomicListT,
diff --git a/flang/test/Fir/convert-to-llvm-openmp-and-fir.fir b/flang/test/Fir/convert-to-llvm-openmp-and-fir.fir
index 168526518865b4..184abe24fe967d 100644
--- a/flang/test/Fir/convert-to-llvm-openmp-and-fir.fir
+++ b/flang/test/Fir/convert-to-llvm-openmp-and-fir.fir
@@ -781,11 +781,11 @@ func.func @_QPsimple_reduction(%arg0: !fir.ref<!fir.array<100x!fir.logical<4>>>
// -----
// CHECK: llvm.func @_QPs
-// CHECK: omp.atomic.read %{{.*}} = %{{.*}} : !llvm.ptr, !llvm.struct<(f32, f32)>
+// CHECK: omp.atomic.read %{{.*}} = %{{.*}} : !llvm.ptr, !llvm.ptr, !llvm.struct<(f32, f32)>
func.func @_QPs(%arg0: !fir.ref<complex<f32>> {fir.bindc_name = "x"}) {
%0 = fir.alloca complex<f32> {bindc_name = "v", uniq_name = "_QFsEv"}
- omp.atomic.read %0 = %arg0 : !fir.ref<complex<f32>>, complex<f32>
+ omp.atomic.read %0 = %arg0 : !fir.ref<complex<f32>>, !fir.ref<complex<f32>>, complex<f32>
return
}
diff --git a/flang/test/Lower/OpenACC/acc-atomic-capture.f90 b/flang/test/Lower/OpenACC/acc-atomic-capture.f90
index 373683386fda90..66b8e8c5843a81 100644
--- a/flang/test/Lower/OpenACC/acc-atomic-capture.f90
+++ b/flang/test/Lower/OpenACC/acc-atomic-capture.f90
@@ -11,7 +11,7 @@ program acc_atomic_capture_test
!CHECK: %[[Y_DECL:.*]]:2 = hlfir.declare %2 {uniq_name = "_QFEy"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
!CHECK: %[[temp:.*]] = fir.load %[[X_DECL]]#0 : !fir.ref<i32>
!CHECK: acc.atomic.capture {
-!CHECK: acc.atomic.read %[[X_DECL]]#1 = %[[Y_DECL]]#1 : !fir.ref<i32>
+!CHECK: acc.atomic.read %[[X_DECL]]#1 = %[[Y_DECL]]#1 : !fir.ref<i32>, !fir.ref<i32>, i32
!CHECK: acc.atomic.update %[[Y_DECL]]#1 : !fir.ref<i32> {
!CHECK: ^bb0(%[[ARG:.*]]: i32):
!CHECK: %[[result:.*]] = arith.addi %[[temp]], %[[ARG]] : i32
@@ -32,7 +32,7 @@ program acc_atomic_capture_test
!CHECK: %[[result:.*]] = arith.muli %[[temp]], %[[ARG]] : i32
!CHECK: acc.yield %[[result]] : i32
!CHECK: }
-!CHECK: acc.atomic.read %[[X_DECL]]#1 = %[[Y_DECL]]#1 : !fir.ref<i32>
+!CHECK: acc.atomic.read %[[X_DECL]]#1 = %[[Y_DECL]]#1 : !fir.ref<i32>, !fir.ref<i32>, i32
!CHECK: }
!$acc atomic capture
@@ -47,7 +47,7 @@ program acc_atomic_capture_test
!CHECK: %[[result_noreassoc:.*]] = hlfir.no_reassoc %[[result]] : i32
!CHECK: %[[result:.*]] = arith.addi %[[constant_20]], %[[result_noreassoc]] : i32
!CHECK: acc.atomic.capture {
-!CHECK: acc.atomic.read %[[X_DECL]]#1 = %[[Y_DECL]]#1 : !fir.ref<i32>
+!CHECK: acc.atomic.read %[[X_DECL]]#1 = %[[Y_DECL]]#1 : !fir.ref<i32>, !fir.ref<i32>, i32
!CHECK: acc.atomic.write %[[Y_DECL]]#1 = %[[result]] : !fir.ref<i32>, i32
!CHECK: }
@@ -82,7 +82,7 @@ subroutine pointers_in_atomic_capture()
!CHECK: %[[result:.*]] = arith.addi %[[ARG]], %[[loaded_value]] : i32
!CHECK: acc.yield %[[result]] : i32
!CHECK: }
-!CHECK: acc.atomic.read %[[loaded_B_addr]] = %[[loaded_A_addr]] : !fir.ptr<i32>, i32
+!CHECK: acc.atomic.read %[[loaded_B_addr]] = %[[loaded_A_addr]] : !fir.ptr<i32>, !fir.ptr<i32>, i32
!CHECK: }
integer, pointer :: a, b
integer, target :: c, d
@@ -118,10 +118,95 @@ subroutine capture_with_convert_f32_to_i32()
! CHECK: %[[MUL:.*]] = arith.mulf %{{.*}}, %[[CST]] fastmath<contract> : f32
! CHECK: %[[CONV:.*]] = fir.convert %[[MUL]] : (f32) -> i32
! CHECK: acc.atomic.capture {
-! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[K_DECL]]#1 : !fir.ref<i32>, i32
+! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[K_DECL]]#1 : !fir.ref<i32>, !fir.ref<i32>, i32
! CHECK: acc.atomic.write %[[K_DECL]]#1 = %[[CONV]] : !fir.ref<i32>, i32
! CHECK: }
+subroutine capture_with_convert_i32_to_f64()
+ real(8) :: x
+ integer :: v
+ x = 1.0
+ v = 0
+ !$acc atomic capture
+ v = x
+ x = v
+ !$acc end atomic
+end subroutine capture_with_convert_i32_to_f64
+
+! CHECK-LABEL: func.func @_QPcapture_with_convert_i32_to_f64()
+! CHECK: %[[V:.*]] = fir.alloca i32 {bindc_name = "v", uniq_name = "_QFcapture_with_convert_i32_to_f64Ev"}
+! CHECK: %[[V_DECL:.*]]:2 = hlfir.declare %[[V]] {uniq_name = "_QFcapture_with_convert_i32_to_f64Ev"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
+! CHECK: %[[X:.*]] = fir.alloca f64 {bindc_name = "x", uniq_name = "_QFcapture_with_convert_i32_to_f64Ex"}
+! CHECK: %[[X_DECL:.*]]:2 = hlfir.declare %[[X]] {uniq_name = "_QFcapture_with_convert_i32_to_f64Ex"} : (!fir.ref<f64>) -> (!fir.ref<f64>, !fir.ref<f64>)
+! CHECK: %[[LOAD:.*]] = fir.load %[[V_DECL]]#0 : !fir.ref<i32>
+! CHECK: %[[CONV:.*]] = fir.convert %[[LOAD]] : (i32) -> f64
+! CHECK: acc.atomic.capture {
+! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[X_DECL]]#1 : !fir.ref<i32>, !fir.ref<f64>, f64
+! CHECK: acc.atomic.write %[[X_DECL]]#1 = %[[CONV]] : !fir.ref<f64>, f64
+! CHECK: }
+
+subroutine capture_with_convert_f64_to_i32()
+ integer :: x
+ real(8) :: v
+ x = 1
+ v = 0
+ !$acc atomic capture
+ x = v * v
+ v = x
+ !$acc end atomic
+end subroutine capture_with_convert_f64_to_i32
+
+! CHECK-LABEL: func.func @_QPcapture_with_convert_f64_to_i32()
+! CHECK: %[[V:.*]] = fir.alloca f64 {bindc_name = "v", uniq_name = "_QFcapture_with_convert_f64_to_i32Ev"}
+! CHECK: %[[V_DECL:.*]]:2 = hlfir.declare %[[V]] {uniq_name = "_QFcapture_with_convert_f64_to_i32Ev"} : (!fir.ref<f64>) -> (!fir.ref<f64>, !fir.ref<f64>)
+! CHECK: %[[X:.*]] = fir.alloca i32 {bindc_name = "x", uniq_name = "_QFcapture_with_convert_f64_to_i32Ex"}
+! CHECK: %[[X_DECL:.*]]:2 = hlfir.declare %[[X]] {uniq_name = "_QFcapture_with_convert_f64_to_i32Ex"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
+! CHECK: %c1_i32 = arith.constant 1 : i32
+! CHECK: hlfir.assign %c1_i32 to %[[X_DECL]]#0 : i32, !fir.ref<i32>
+! CHECK: %[[CST:.*]] = arith.constant 0.000000e+00 : f64
+! CHECK: hlfir.assign %[[CST]] to %[[V_DECL]]#0 : f64, !fir.ref<f64>
+! CHECK: %[[LOAD:.*]] = fir.load %[[V_DECL]]#0 : !fir.ref<f64>
+! CHECK: acc.atomic.capture {
+! CHECK: acc.atomic.update %[[X_DECL]]#1 : !fir.ref<i32> {
+! CHECK: ^bb0(%arg0: i32):
+! CHECK: %[[MUL:.*]] = arith.mulf %[[LOAD]], %[[LOAD]] fastmath<contract> : f64
+! CHECK: %[[CONV:.*]] = fir.convert %[[MUL]] : (f64) -> i32
+! CHECK: acc.yield %[[CONV]] : i32
+! CHECK: }
+! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[X_DECL]]#1 : !fir.ref<f64>, !fir.ref<i32>, i32
+! CHECK: }
+
+subroutine capture_with_convert_i32_to_f32()
+ real(4) :: x
+ integer :: v
+ x = 1.0
+ v = 0
+ !$acc atomic capture
+ v = x
+ x = x + v
+ !$acc end atomic
+end subroutine capture_with_convert_i32_to_f32
+
+! CHECK-LABEL: func.func @_QPcapture_with_convert_i32_to_f32()
+! CHECK: %[[V:.*]] = fir.alloca i32 {bindc_name = "v", uniq_name = "_QFcapture_with_convert_i32_to_f32Ev"}
+! CHECK: %[[V_DECL:.*]]:2 = hlfir.declare %[[V]] {uniq_name = "_QFcapture_with_convert_i32_to_f32Ev"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
+! CHECK: %[[X:.*]] = fir.alloca f32 {bindc_name = "x", uniq_name = "_QFcapture_with_convert_i32_to_f32Ex"}
+! CHECK: %[[X_DECL:.*]]:2 = hlfir.declare %[[X]] {uniq_name = "_QFcapture_with_convert_i32_to_f32Ex"} : (!fir.ref<f32>) -> (!fir.ref<f32>, !fir.ref<f32>)
+! CHECK: %[[CST:.*]] = arith.constant 1.000000e+00 : f32
+! CHECK: hlfir.assign %[[CST]] to %[[X_DECL]]#0 : f32, !fir.ref<f32>
+! CHECK: %c0_i32 = arith.constant 0 : i32
+! CHECK: hlfir.assign %c0_i32 to %[[V_DECL]]#0 : i32, !fir.ref<i32>
+! CHECK: %[[LOAD:.*]] = fir.load %[[V_DECL]]#0 : !fir.ref<i32>
+! CHECK: acc.atomic.capture {
+! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[X_DECL]]#1 : !fir.ref<i32>, !fir.ref<f32>, f32
+! CHECK: acc.atomic.update %[[X_DECL]]#1 : !fir.ref<f32> {
+! CHECK: ^bb0(%arg0: f32):
+! CHECK: %[[CONV:.*]] = fir.convert %[[LOAD]] : (i32) -> f32
+! CHECK: %[[ADD:.*]] = arith.addf %arg0, %[[CONV]] fastmath<contract> : f32
+! CHECK: acc.yield %[[ADD]] : f32
+! CHECK: }
+! CHECK: }
+
subroutine array_ref_in_atomic_capture1
integer :: x(10), v
!$acc atomic capture
@@ -136,7 +221,7 @@ end subroutine array_ref_in_atomic_capture1
! CHECK: %[[X_DECL:.*]]:2 = hlfir.declare %[[X]](%{{.*}}) {uniq_name = "_QFarray_ref_in_atomic_capture1Ex"} : (!fir.ref<!fir.array<10xi32>>, !fir.shape<1>) -> (!fir.ref<!fir.array<10xi32>>, !fir.ref<!fir.array<10xi32>>)
! CHECK: %[[X_REF:.*]] = hlfir.designate %[[X_DECL]]#0 (%{{.*}}) : (!fir.ref<!fir.array<10xi32>>, index) -> !fir.ref<i32>
! CHECK: acc.atomic.capture {
-! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[X_REF]] : !fir.ref<i32>, i32
+! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[X_REF]] : !fir.ref<i32>, !fir.ref<i32>, i32
! CHECK: acc.atomic.update %[[X_REF]] : !fir.ref<i32> {
! CHECK: ^bb0(%[[VAL_7:.*]]: i32):
! CHECK: %[[VAL_8:.*]] = arith.addi %[[VAL_7]], %{{.*}} : i32
@@ -163,7 +248,7 @@ end subroutine array_ref_in_atomic_capture2
! CHECK: %[[VAL_8:.*]] = arith.addi %[[VAL_7]], %{{.*}} : i32
! CHECK: acc.yield %[[VAL_8]] : i32
! CHECK: }
-! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[X_REF]] : !fir.ref<i32>, i32
+! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[X_REF]] : !fir.ref<i32>, !fir.ref<i32>, i32
! CHECK: }
subroutine comp_ref_in_atomic_capture1
@@ -184,7 +269,7 @@ end subroutine comp_ref_in_atomic_capture1
! CHECK: %[[X_DECL:.*]]:2 = hlfir.declare %[[X]] {uniq_name = "_QFcomp_ref_in_atomic_capture1Ex"} : (!fir.ref<!fir.type<_QFcomp_ref_in_atomic_capture1Tt1{c:i32}>>) -> (!fir.ref<!fir.type<_QFcomp_ref_in_atomic_capture1Tt1{c:i32}>>, !fir.ref<!fir.type<_QFcomp_ref_in_atomic_capture1Tt1{c:i32}>>)
! CHECK: %[[C:.*]] = hlfir.designate %[[X_DECL]]#0{"c"} : (!fir.ref<!fir.type<_QFcomp_ref_in_atomic_capture1Tt1{c:i32}>>) -> !fir.ref<i32>
! CHECK: acc.atomic.capture {
-! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[C]] : !fir.ref<i32>, i32
+! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[C]] : !fir.ref<i32>, !fir.ref<i32>, i32
! CHECK: acc.atomic.update %[[C]] : !fir.ref<i32> {
! CHECK: ^bb0(%[[VAL_5:.*]]: i32):
! CHECK: %[[VAL_6:.*]] = arith.addi %[[VAL_5]], %{{.*}} : i32
@@ -215,5 +300,5 @@ end subroutine comp_ref_in_atomic_capture2
! CHECK: %[[VAL_6:.*]] = arith.addi %[[VAL_5]], %{{.*}} : i32
! CHECK: acc.yield %[[VAL_6]] : i32
! CHECK: }
-! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[C]] : !fir.ref<i32>, i32
+! CHECK: acc.atomic.read %[[V_DECL]]#1 = %[[C]] : !fir.ref<i32>, !fir.ref<i32>, i32
! CHECK: }
diff --git a/flang/test/Lower/OpenACC/acc-atomic-read.f90 b/flang/test/Lower/OpenACC/acc-atomic-read.f90
index c1a97a9e5f74f3..f2cbe6e45596a4 100644
--- a/flang/test/Lower/OpenACC/acc-atomic-read.f90
+++ b/flang/test/Lower/OpenACC/acc-atomic-read.f90
@@ -13,7 +13,7 @@ end program acc_atomic_test
! CHECK: %[[G_DECL:.*]]:2 = hlfir.declare %[[VAR_G]] {uniq_name = "_QFEg"} : (!fir.ref<f32>) -> (!fir.ref<f32>, !fir.ref<f32>)
! CHECK: %[[VAR_H:.*]] = fir.alloca f32 {bindc_name = "h", uniq_name = "_QFEh"}
! CHECK: %[[H_DECL:.*]]:2 = hlfir.declare %[[VAR_H]] {uniq_name = "_QFEh"} : (!fir.ref<f32>) -> (!fir.ref<f32>, !fir.ref<f32>)
-! CHECK: acc.atomic.read %[[G_DECL]]#1 = %[[H_DECL]]#1 : !fir.ref<f32>, f32
+! CHECK: acc.atomic.read %[[G_DECL]]#1 = %[[H_DECL]]#1 : !fir.ref<f32>, !fir.ref<f32>, f32
! CHECK: return
! CHECK: }
@@ -39,10 +39,10 @@ subroutine atomic_read_pointer()
! CHECK: %[[BOX_ADDR_X:.*]] = fir.box_addr %[[LOAD_X]] : (!fir.box<!fir.ptr<i32>>) -> !fir.ptr<i32>
! CHECK: %[[LOAD_Y:.*]] = fir.load %[[Y_DECL]]#0 : !fir.ref<!fir.box<!fir.ptr<i32>>>
! CHECK: %[[BOX_ADDR_Y:.*]] = fir.box_addr %[[LOAD_Y]] : (!fir.box<!fir.ptr<i32>>) -> !fir.ptr<i32>
-! CHECK: acc.atomic.read %[[BOX_ADDR_Y]] = %[[BOX_ADDR_X]] : !fir.ptr<i32>, i32
+! CHECK: acc.atomic.read %[[BOX_ADDR_Y]] = %[[BOX_ADDR_X]] : !fir.ptr<i32>, !fir.ptr<i32>, i32
! CHECK: }
-subroutine atomic_read_with_convert()
+subroutine atomic_read_with_cast()
integer(4) :: x
integer(8) :: y
@@ -50,10 +50,9 @@ subroutine atomic_read_with_convert()
y = x
end
-! CHECK-LABEL: func.func @_QPatomic_read_with_convert() {
-! CHECK: %[[X:.*]] = fir.alloca i32 {bindc_name = "x", uniq_name = "_QFatomic_read_with_convertEx"}
-! CHECK: %[[X_DECL:.*]]:2 = hlfir.declare %[[X]] {uniq_name = "_QFatomic_read_with_convertEx"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
-! CHECK: %[[Y:.*]] = fir.alloca i64 {bindc_name = "y", uniq_name = "_QFatomic_read_with_convertEy"}
-! CHECK: %[[Y_DECL:.*]]:2 = hlfir.declare %[[Y]] {uniq_name = "_QFatomic_read_with_convertEy"} : (!fir.ref<i64>) -> (!fir.ref<i64>, !fir.ref<i64>)
-! CHECK: %[[CONV:.*]] = fir.convert %[[X_DECL]]#1 : (!fir.ref<i32>) -> !fir.ref<i64>
-! CHECK: acc.atomic.read %[[Y_DECL]]#1 = %[[CONV]] : !fir.ref<i64>, i32
+! CHECK-LABEL: func.func @_QPatomic_read_with_cast() {
+! CHECK: %[[X:.*]] = fir.alloca i32 {bindc_name = "x", uniq_name = "_QFatomic_read_with_castEx"}
+! CHECK: %[[X_DECL:.*]]:2 = hlfir.declare %[[X]] {uniq_name = "_QFatomic_read_with_castEx"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
+! CHECK: %[[Y:.*]] = fir.alloca i64 {bindc_name = "y", uniq_name = "_QFatomic_read_with_castEy"}
+! CHECK: %[[Y_DECL:.*]]:2 = hlfir.declare %[[Y]] {uniq_name = "_QFatomic_read_with_castEy"} : (!fir.ref<i64>) -> (!fir.ref<i64>, !fir.ref<i64>)
+! CHECK: acc.atomic.read %[[Y_DECL]]#1 = %[[X_DECL]]#1 : !fir.ref<i64>, !fir.ref<i32>, i32
diff --git a/flang/test/Lower/OpenACC/acc-atomic-update-array.f90 b/flang/test/Lower/OpenACC/acc-atomic-update-array.f90
index eeb7ea29940862..f89a9ab457d499 100644
--- a/flang/test/Lower/OpenACC/acc-atomic-update-array.f90
+++ b/flang/test/Lower/OpenACC/acc-atomic-update-array.f90
@@ -45,7 +45,7 @@ subroutine atomic_read_array1(r, n, x)
! CHECK: %[[DECL_X:.*]]:2 = hlfir.declare %[[ARG2]] dummy_scope %{{[0-9]+}} {uniq_name = "_QFatomic_read_array1Ex"} : (!fir.ref<f32>, !fir.dscope) -> (!fir.ref<f32>, !fir.ref<f32>)
! CHECK: %[[DECL_R:.*]]:2 = hlfir.declare %[[ARG0]](%{{.*}}) dummy_scope %{{[0-9]+}} {uniq_name = "_QFatomic_read_array1Er"} : (!fir.ref<!fir.array<?xf32>>, !fir.shape<1>, !fir.dscope) -> (!fir.box<!fir.array<?xf32>>, !fir.ref<!fir.array<?xf32>>)
! CHECK: %[[DES:.*]] = hlfir.designate %[[DECL_R]]#0 (%{{.*}}) : (!fir.box<!fir.array<?xf32>>, i64) -> !fir.ref<f32>
-! CHECK: acc.atomic.read %[[DECL_X]...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/114390
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