================
@@ -9945,16 +9945,29 @@ Error OpenMPIRBuilder::emitOffloadingArrays(
ConstantInt::get(Int64Ty, 0));
SmallBitVector RuntimeSizes(CombinedInfo.Sizes.size());
for (unsigned I = 0, E = CombinedInfo.Sizes.size(); I < E; ++I) {
+ bool IsNonContigEntry =
+ IsNonContiguous &&
+ (static_cast<std::underlying_type_t<OpenMPOffloadMappingFlags>>(
+ CombinedInfo.Types[I] &
+ OpenMPOffloadMappingFlags::OMP_MAP_NON_CONTIG) != 0);
+ // For NON_CONTIG entries ArgSizes must carry the dimension count
+ // (number of descriptor_dim records) – NOT the byte size expression.
+ // Variable subsection forms (e.g. 0:s.len/2:2) previously produced a
+ // non-constant size so we marked them runtime and stored the byte size,
+ // leading the runtime to treat it as DimSize and overrun descriptors.
+ if (IsNonContigEntry) {
+ // Dims must be long enough and positive.
+ assert(I < CombinedInfo.NonContigInfo.Dims.size() &&
+ "Induction variable is in-bounds with the NON_CONTIG Dims array");
----------------
amitamd7 wrote:
Updated.
https://github.com/llvm/llvm-project/pull/181987
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