[flang-commits] [flang] [flang][openacc] Do not loose attributes on folding (PR #80516)
Valentin Clement バレンタイン クレメン via flang-commits
flang-commits at lists.llvm.org
Fri Feb 2 16:48:52 PST 2024
https://github.com/clementval updated https://github.com/llvm/llvm-project/pull/80516
>From b62ee801d5e6174648dd06e0f07014197c34358d Mon Sep 17 00:00:00 2001
From: Valentin Clement <clementval at gmail.com>
Date: Fri, 2 Feb 2024 16:15:02 -0800
Subject: [PATCH 1/2] [flang][openacc] Do not loose attributes on folding
---
flang/lib/Optimizer/Dialect/FIROps.cpp | 17 +++++++-
.../Fir/OpenACC/propagate-attr-folding.fir | 39 +++++++++++++++++++
2 files changed, 55 insertions(+), 1 deletion(-)
create mode 100644 flang/test/Fir/OpenACC/propagate-attr-folding.fir
diff --git a/flang/lib/Optimizer/Dialect/FIROps.cpp b/flang/lib/Optimizer/Dialect/FIROps.cpp
index f826f2566b897..96a676149203d 100644
--- a/flang/lib/Optimizer/Dialect/FIROps.cpp
+++ b/flang/lib/Optimizer/Dialect/FIROps.cpp
@@ -20,6 +20,7 @@
#include "flang/Optimizer/Support/Utils.h"
#include "mlir/Dialect/CommonFolders.h"
#include "mlir/Dialect/Func/IR/FuncOps.h"
+#include "mlir/Dialect/OpenACC/OpenACC.h"
#include "mlir/Dialect/OpenMP/OpenMPDialect.h"
#include "mlir/IR/Attributes.h"
#include "mlir/IR/BuiltinAttributes.h"
@@ -36,6 +37,18 @@ namespace {
#include "flang/Optimizer/Dialect/CanonicalizationPatterns.inc"
} // namespace
+static void propagateAttributes(mlir::Operation *fromOp,
+ mlir::Operation *toOp) {
+ if (!fromOp || !toOp)
+ return;
+
+ for (mlir::NamedAttribute attr : fromOp->getAttrs()) {
+ if (attr.getName().str().rfind(
+ mlir::acc::OpenACCDialect::getDialectNamespace(), 0) == 0)
+ toOp->setAttr(attr.getName().str(), attr.getValue());
+ }
+}
+
/// Return true if a sequence type is of some incomplete size or a record type
/// is malformed or contains an incomplete sequence type. An incomplete sequence
/// type is one with more unknown extents in the type than have been provided
@@ -626,8 +639,10 @@ mlir::OpFoldResult fir::BoxAddrOp::fold(FoldAdaptor adaptor) {
if (auto *v = getVal().getDefiningOp()) {
if (auto box = mlir::dyn_cast<fir::EmboxOp>(v)) {
// Fold only if not sliced
- if (!box.getSlice() && box.getMemref().getType() == getType())
+ if (!box.getSlice() && box.getMemref().getType() == getType()) {
+ propagateAttributes(getOperation(), box.getMemref().getDefiningOp());
return box.getMemref();
+ }
}
if (auto box = mlir::dyn_cast<fir::EmboxCharOp>(v))
if (box.getMemref().getType() == getType())
diff --git a/flang/test/Fir/OpenACC/propagate-attr-folding.fir b/flang/test/Fir/OpenACC/propagate-attr-folding.fir
new file mode 100644
index 0000000000000..f84269f5fef26
--- /dev/null
+++ b/flang/test/Fir/OpenACC/propagate-attr-folding.fir
@@ -0,0 +1,39 @@
+// RUN: fir-opt %s --opt-bufferization | FileCheck %s
+
+// Check that OpenACC attributes are propagated to the defining operations when
+// fir.box_addr is folded in bufferization optimization.
+
+func.func @_QPsub1(%arg0: !fir.ref<!fir.array<?x?xf32>> {fir.bindc_name = "a"}, %arg1: !fir.ref<i32> {fir.bindc_name = "n1"}, %arg2: !fir.ref<i32> {fir.bindc_name = "n2"}) {
+ %c1 = arith.constant 1 : index
+ %c0 = arith.constant 0 : index
+ %0 = fir.declare %arg1 {uniq_name = "_QFsub1En1"} : (!fir.ref<i32>) -> !fir.ref<i32>
+ %1 = fir.declare %arg2 {uniq_name = "_QFsub1En2"} : (!fir.ref<i32>) -> !fir.ref<i32>
+ %2 = fir.load %0 : !fir.ref<i32>
+ %3 = fir.convert %2 : (i32) -> index
+ %4 = arith.cmpi sgt, %3, %c0 : index
+ %5 = arith.select %4, %3, %c0 : index
+ %6 = fir.load %1 : !fir.ref<i32>
+ %7 = fir.convert %6 : (i32) -> index
+ %8 = arith.cmpi sgt, %7, %c0 : index
+ %9 = arith.select %8, %7, %c0 : index
+ %10 = fir.shape %5, %9 : (index, index) -> !fir.shape<2>
+ %11 = fir.declare %arg0(%10) {acc.declare = #acc.declare<dataClause = acc_present>, uniq_name = "_QFsub1Ea"} : (!fir.ref<!fir.array<?x?xf32>>, !fir.shape<2>) -> !fir.ref<!fir.array<?x?xf32>>
+ %12 = fir.embox %11(%10) : (!fir.ref<!fir.array<?x?xf32>>, !fir.shape<2>) -> !fir.box<!fir.array<?x?xf32>>
+ %13:3 = fir.box_dims %12, %c0 : (!fir.box<!fir.array<?x?xf32>>, index) -> (index, index, index)
+ %14 = arith.subi %13#1, %c1 : index
+ %15 = acc.bounds lowerbound(%c0 : index) upperbound(%14 : index) extent(%13#1 : index) stride(%13#2 : index) startIdx(%c1 : index) {strideInBytes = true}
+ %16 = arith.muli %13#2, %13#1 : index
+ %17:3 = fir.box_dims %12, %c1 : (!fir.box<!fir.array<?x?xf32>>, index) -> (index, index, index)
+ %18 = arith.subi %17#1, %c1 : index
+ %19 = acc.bounds lowerbound(%c0 : index) upperbound(%18 : index) extent(%17#1 : index) stride(%16 : index) startIdx(%c1 : index) {strideInBytes = true}
+ %20 = acc.present varPtr(%11 : !fir.ref<!fir.array<?x?xf32>>) bounds(%15, %19) -> !fir.ref<!fir.array<?x?xf32>> {name = "a"}
+ %21 = acc.declare_enter dataOperands(%20 : !fir.ref<!fir.array<?x?xf32>>)
+ acc.declare_exit token(%21)
+ return
+}
+
+// CHECK-LABEL: func.func @_QPsub1(
+// CHECK-SAME: %[[ARG0:.*]]: !fir.ref<!fir.array<?x?xf32>> {fir.bindc_name = "a"}
+// CHECK: %[[DECL:.*]] = fir.declare %[[ARG0]](%{{.*}}) {acc.declare = #acc.declare<dataClause = acc_present>, uniq_name = "_QFsub1Ea"} : (!fir.ref<!fir.array<?x?xf32>>, !fir.shape<2>) -> !fir.ref<!fir.array<?x?xf32>>
+// CHECK: %[[PRES:.*]] = acc.present varPtr(%[[DECL]] : !fir.ref<!fir.array<?x?xf32>>) bounds(%{{.*}}, %{{.*}}) -> !fir.ref<!fir.array<?x?xf32>> {name = "a"}
+// CHECK: %{{.*}} = acc.declare_enter dataOperands(%[[PRES]] : !fir.ref<!fir.array<?x?xf32>>)
>From b2031ccea9dba83c2ade67fb3d79b488f03ec0a7 Mon Sep 17 00:00:00 2001
From: Valentin Clement <clementval at gmail.com>
Date: Fri, 2 Feb 2024 16:48:19 -0800
Subject: [PATCH 2/2] Use starts_with and update tests
---
flang/lib/Optimizer/Dialect/FIROps.cpp | 4 ++--
flang/test/Fir/OpenACC/propagate-attr-folding.fir | 9 +++++----
2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/flang/lib/Optimizer/Dialect/FIROps.cpp b/flang/lib/Optimizer/Dialect/FIROps.cpp
index 96a676149203d..777cbf6b4bb26 100644
--- a/flang/lib/Optimizer/Dialect/FIROps.cpp
+++ b/flang/lib/Optimizer/Dialect/FIROps.cpp
@@ -43,8 +43,8 @@ static void propagateAttributes(mlir::Operation *fromOp,
return;
for (mlir::NamedAttribute attr : fromOp->getAttrs()) {
- if (attr.getName().str().rfind(
- mlir::acc::OpenACCDialect::getDialectNamespace(), 0) == 0)
+ if (attr.getName().getValue().starts_with(
+ mlir::acc::OpenACCDialect::getDialectNamespace()))
toOp->setAttr(attr.getName().str(), attr.getValue());
}
}
diff --git a/flang/test/Fir/OpenACC/propagate-attr-folding.fir b/flang/test/Fir/OpenACC/propagate-attr-folding.fir
index f84269f5fef26..99ac7516690e2 100644
--- a/flang/test/Fir/OpenACC/propagate-attr-folding.fir
+++ b/flang/test/Fir/OpenACC/propagate-attr-folding.fir
@@ -17,7 +17,7 @@ func.func @_QPsub1(%arg0: !fir.ref<!fir.array<?x?xf32>> {fir.bindc_name = "a"},
%8 = arith.cmpi sgt, %7, %c0 : index
%9 = arith.select %8, %7, %c0 : index
%10 = fir.shape %5, %9 : (index, index) -> !fir.shape<2>
- %11 = fir.declare %arg0(%10) {acc.declare = #acc.declare<dataClause = acc_present>, uniq_name = "_QFsub1Ea"} : (!fir.ref<!fir.array<?x?xf32>>, !fir.shape<2>) -> !fir.ref<!fir.array<?x?xf32>>
+ %11 = fir.declare %arg0(%10) {uniq_name = "_QFsub1Ea"} : (!fir.ref<!fir.array<?x?xf32>>, !fir.shape<2>) -> !fir.ref<!fir.array<?x?xf32>>
%12 = fir.embox %11(%10) : (!fir.ref<!fir.array<?x?xf32>>, !fir.shape<2>) -> !fir.box<!fir.array<?x?xf32>>
%13:3 = fir.box_dims %12, %c0 : (!fir.box<!fir.array<?x?xf32>>, index) -> (index, index, index)
%14 = arith.subi %13#1, %c1 : index
@@ -26,9 +26,10 @@ func.func @_QPsub1(%arg0: !fir.ref<!fir.array<?x?xf32>> {fir.bindc_name = "a"},
%17:3 = fir.box_dims %12, %c1 : (!fir.box<!fir.array<?x?xf32>>, index) -> (index, index, index)
%18 = arith.subi %17#1, %c1 : index
%19 = acc.bounds lowerbound(%c0 : index) upperbound(%18 : index) extent(%17#1 : index) stride(%16 : index) startIdx(%c1 : index) {strideInBytes = true}
- %20 = acc.present varPtr(%11 : !fir.ref<!fir.array<?x?xf32>>) bounds(%15, %19) -> !fir.ref<!fir.array<?x?xf32>> {name = "a"}
- %21 = acc.declare_enter dataOperands(%20 : !fir.ref<!fir.array<?x?xf32>>)
- acc.declare_exit token(%21)
+ %20 = fir.box_addr %12 {acc.declare = #acc.declare<dataClause = acc_present>} : (!fir.box<!fir.array<?x?xf32>>) -> !fir.ref<!fir.array<?x?xf32>>
+ %21 = acc.present varPtr(%20 : !fir.ref<!fir.array<?x?xf32>>) bounds(%15, %19) -> !fir.ref<!fir.array<?x?xf32>> {name = "a"}
+ %22 = acc.declare_enter dataOperands(%21 : !fir.ref<!fir.array<?x?xf32>>)
+ acc.declare_exit token(%22)
return
}
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