diff --git a/mlir/lib/Conversion/StandardToSPIRV/ConvertStandardToSPIRV.cpp b/mlir/lib/Conversion/StandardToSPIRV/ConvertStandardToSPIRV.cpp
--- a/mlir/lib/Conversion/StandardToSPIRV/ConvertStandardToSPIRV.cpp
+++ b/mlir/lib/Conversion/StandardToSPIRV/ConvertStandardToSPIRV.cpp
@@ -754,6 +754,8 @@
       CmpFOpPattern, CmpIOpPattern, IntLoadOpPattern, LoadOpPattern,
       ReturnOpPattern, SelectOpPattern, StoreOpPattern,
       TypeCastingOpPattern<SIToFPOp, spirv::ConvertSToFOp>,
+      TypeCastingOpPattern<ZeroExtendIOp, spirv::SConvertOp>,
+      TypeCastingOpPattern<TruncateIOp, spirv::SConvertOp>,
       TypeCastingOpPattern<FPExtOp, spirv::FConvertOp>,
       TypeCastingOpPattern<FPTruncOp, spirv::FConvertOp>, XOrOpPattern>(
       context, typeConverter);