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authorKiran Chandramohan <kiran.chandramohan@arm.com>2023-07-18 09:09:58 +0000
committerKiran Chandramohan <kiran.chandramohan@arm.com>2023-07-18 09:26:58 +0000
commit41f478f0419781f6968de0661ce570916c9de863 (patch)
treed22e2222fdefc1da0bc44a5bd013a18a630c07f1
parent505335a99d46643eae7729c1d3ea7bf719c79382 (diff)
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[Flang][HLFIR] Relax size check for dot_product intrinsic
If the size of one of the operand arrays is not known at compile time, do not issue a size mismatch error sinc they could match at runtime. Fixes the compilation error in polyhedron/induct2. Reviewed By: tblah, vzakhari Differential Revision: https://reviews.llvm.org/D155302
-rw-r--r--flang/lib/Optimizer/HLFIR/IR/HLFIROps.cpp4
-rw-r--r--flang/test/Lower/HLFIR/dot_product.f9012
2 files changed, 15 insertions, 1 deletions
diff --git a/flang/lib/Optimizer/HLFIR/IR/HLFIROps.cpp b/flang/lib/Optimizer/HLFIR/IR/HLFIROps.cpp
index 51b44d7..37a1d9a 100644
--- a/flang/lib/Optimizer/HLFIR/IR/HLFIROps.cpp
+++ b/flang/lib/Optimizer/HLFIR/IR/HLFIROps.cpp
@@ -733,7 +733,9 @@ mlir::LogicalResult hlfir::DotProductOp::verify() {
int64_t lhsSize = lhsShape[0];
int64_t rhsSize = rhsShape[0];
- if (lhsSize != rhsSize)
+ constexpr int64_t unknownExtent = fir::SequenceType::getUnknownExtent();
+ if ((lhsSize != unknownExtent) && (rhsSize != unknownExtent) &&
+ (lhsSize != rhsSize))
return emitOpError("both arrays must have the same size");
if (mlir::isa<fir::LogicalType>(lhsEleTy) !=
diff --git a/flang/test/Lower/HLFIR/dot_product.f90 b/flang/test/Lower/HLFIR/dot_product.f90
index 47e623a..890dc4a 100644
--- a/flang/test/Lower/HLFIR/dot_product.f90
+++ b/flang/test/Lower/HLFIR/dot_product.f90
@@ -70,3 +70,15 @@ endsubroutine
! CHECK-NEXT: hlfir.assign %[[PROD]] to %[[RES_VAR]]#0 : i32, !fir.ref<i32>
! CHECK-NEXT: return
! CHECK-NEXT: }
+
+! CHECK-LABEL: func.func @_QPdot_product5
+! CHECK: %[[LHS:.*]]:2 = hlfir.declare %{{.*}} {uniq_name = "_QFdot_product5Elhs"} : (!fir.box<!fir.array<?xi32>>) -> (!fir.box<!fir.array<?xi32>>, !fir.box<!fir.array<?xi32>>)
+! CHECK: %[[C3:.*]] = arith.constant 3 : index
+! CHECK: %[[RHS_SHAPE:.*]] = fir.shape %[[C3]] : (index) -> !fir.shape<1>
+! CHECK: %[[RHS:.*]]:2 = hlfir.declare %{{.*}}(%[[RHS_SHAPE]]) {uniq_name = "_QFdot_product5Erhs"} : (!fir.ref<!fir.array<3xi32>>, !fir.shape<1>) -> (!fir.ref<!fir.array<3xi32>>, !fir.ref<!fir.array<3xi32>>)
+! CHECK: {{.*}} = hlfir.dot_product %[[LHS]]#0 %[[RHS]]#0 {fastmath = #arith.fastmath<contract>} : (!fir.box<!fir.array<?xi32>>, !fir.ref<!fir.array<3xi32>>) -> i32
+subroutine dot_product5(lhs, rhs, res)
+ integer :: lhs(:), rhs(3)
+ integer :: res
+ res = dot_product(lhs, rhs)
+endsubroutine