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[Backport to 14] Check if OpCooperativeMatrixLengthKHR operand is a type #3005

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Feb 13, 2025
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[Backport to 14] Check if OpCooperativeMatrixLengthKHR operand is a type #3005

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[LLVM-14] Check if `OpCooperativeMatrixLengthKHR` operand is a type
vmaksimo Feb 10, 2025
b5a5aa0
Add test
vmaksimo Feb 10, 2025
a58a7a0
align test check with the llvm 14
vmaksimo Feb 13, 2025
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3 changes: 2 additions & 1 deletion lib/SPIRV/SPIRVReader.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3455,7 +3455,8 @@ Instruction *SPIRVToLLVM::transBuiltinFromInst(const std::string &FuncName,
Func->addFnAttr(Attribute::Convergent);
}
CallInst *Call;
if (BI->getOpCode() == OpCooperativeMatrixLengthKHR) {
if (BI->getOpCode() == OpCooperativeMatrixLengthKHR &&
Ops[0]->getOpCode() == OpTypeCooperativeMatrixKHR) {
// OpCooperativeMatrixLengthKHR needs special handling as its operand is
// a Type instead of a Value.
llvm::Type *MatTy = transType(reinterpret_cast<SPIRVType *>(Ops[0]));
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56 changes: 56 additions & 0 deletions test/transcoding/SPV_KHR_cooperative_matrix/length_legacy.spt
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@@ -0,0 +1,56 @@
; This test is used to check that we do not break backward translation of `CooperativeMatrixLengthKHR`,
; even in case when it was generated not specification conformant (as value, not type) in forward translation.

; RUN: llvm-spirv %s -to-binary -o %t.spv
; RUN: llvm-spirv -r %t.spv -o - | llvm-dis -o %t.ll
; RUN: FileCheck %s --input-file %t.ll

; CHECK: call spir_func i32 @_Z34__spirv_CooperativeMatrixLengthKHRPU3AS143__spirv_CooperativeMatrixKHR__int_3_12_48_0(%spirv.CooperativeMatrixKHR._int_3_12_48_0

119734787 65536 393230 21 0
2 Capability Addresses
2 Capability Linkage
2 Capability Kernel
2 Capability Int64
2 Capability GenericPointer
2 Capability Int8
2 Capability CooperativeMatrixKHR
8 Extension "SPV_KHR_cooperative_matrix"
5 ExtInstImport 1 "OpenCL.std"
3 MemoryModel 2 2
3 Source 0 0
5 Name 7 "matr_mult"
5 Name 8 "_arg_accA"
4 Name 9 "_arg_K"
4 Name 10 "entry"
4 Name 12 "accA3"
3 Name 19 "m2"
3 Name 20 "len"

7 Decorate 7 LinkageAttributes "matr_mult" Export
4 Decorate 8 Alignment 1
4 TypeInt 3 8 0
4 TypeInt 5 64 0
4 TypeInt 13 32 0
4 Constant 13 14 3
4 Constant 13 15 12
4 Constant 13 16 48
4 Constant 13 17 0
2 TypeVoid 2
4 TypePointer 4 5 3
5 TypeFunction 6 2 4 5
4 TypePointer 11 8 3
7 TypeCooperativeMatrixKHR 18 13 14 15 16 17

5 Function 2 7 0 6
3 FunctionParameter 4 8
3 FunctionParameter 5 9

2 Label 10
4 PtrCastToGeneric 11 12 8
7 CooperativeMatrixLoadKHR 18 19 12 17 9 1
4 CooperativeMatrixLengthKHR 13 20 19
1 Return

1 FunctionEnd

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