From b6422e50cb19f7f790f29678ba22f31b0b305511 Mon Sep 17 00:00:00 2001 From: Yong He Date: Tue, 30 Sep 2025 14:13:53 -0700 Subject: Handle getEquivalentStructuredBuffer(castDynamicResource) in byte address legalization pass. (#8567) This is crash that be triggered by providing custom `getDescriptorFromHandle` and use it to return access a ByteAddressBuffer from a bindless handle. Closes #8355. --- source/slang/slang-ir-byte-address-legalize.cpp | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'source') diff --git a/source/slang/slang-ir-byte-address-legalize.cpp b/source/slang/slang-ir-byte-address-legalize.cpp index baafc7e7f..15cbb6ca0 100644 --- a/source/slang/slang-ir-byte-address-legalize.cpp +++ b/source/slang/slang-ir-byte-address-legalize.cpp @@ -941,6 +941,19 @@ struct ByteAddressBufferLegalizationContext { return getEquivalentStructuredBufferParam(elementType, byteAddressBufferParam); } + else if (auto castDynamicResource = as(byteAddressBuffer)) + { + // If the underlying structured buffer is a CastDynamicResource, + // we can simply cast the dynamic resource into the byte address buffer type instead. + auto arg = castDynamicResource->getOperand(0); + return m_builder.emitIntrinsicInst( + getEquivalentStructuredBufferParamType( + elementType, + byteAddressBuffer->getDataType()), + kIROp_CastDynamicResource, + 1, + &arg); + } if (byteAddressBuffer->getOp() == kIROp_GetElement) { -- cgit v1.2.3