generating proper tasking function for nvptx
This commit is contained in:
Evghenii
124
func.cpp
124
func.cpp
@@ -240,78 +240,82 @@ Function::emitCode(FunctionEmitContext *ctx, llvm::Function *function,
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// thread index, and the thread count variables.
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llvm::Function::arg_iterator argIter = function->arg_begin();
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llvm::Value *structParamPtr = argIter++;
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llvm::Value *threadIndex = argIter++;
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llvm::Value *threadCount = argIter++;
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llvm::Value *taskIndex = argIter++;
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llvm::Value *taskCount = argIter++;
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llvm::Value *taskIndex0 = argIter++;
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llvm::Value *taskIndex1 = argIter++;
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llvm::Value *taskIndex2 = argIter++;
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llvm::Value *taskCount0 = argIter++;
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llvm::Value *taskCount1 = argIter++;
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llvm::Value *taskCount2 = argIter++;
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// Copy the function parameter values from the structure into local
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// storage
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for (unsigned int i = 0; i < args.size(); ++i)
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lCopyInTaskParameter(i, structParamPtr, args, ctx);
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lCopyInTaskParameter(i, structParamPtr, args, ctx);
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if (type->isUnmasked == false) {
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// Copy in the mask as well.
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int nArgs = (int)args.size();
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// The mask is the last parameter in the argument structure
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llvm::Value *ptr = ctx->AddElementOffset(structParamPtr, nArgs, NULL,
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"task_struct_mask");
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llvm::Value *ptrval = ctx->LoadInst(ptr, "mask");
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ctx->SetFunctionMask(ptrval);
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// Copy in the mask as well.
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int nArgs = (int)args.size();
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// The mask is the last parameter in the argument structure
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llvm::Value *ptr = ctx->AddElementOffset(structParamPtr, nArgs, NULL,
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"task_struct_mask");
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llvm::Value *ptrval = ctx->LoadInst(ptr, "mask");
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ctx->SetFunctionMask(ptrval);
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}
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// Copy threadIndex and threadCount into stack-allocated storage so
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// that their symbols point to something reasonable.
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threadIndexSym->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "threadIndex");
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ctx->StoreInst(threadIndex, threadIndexSym->storagePtr);
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if (g->target->getISA() != Target::NVPTX64)
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{
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llvm::Value *threadIndex = argIter++;
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llvm::Value *threadCount = argIter++;
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llvm::Value *taskIndex = argIter++;
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llvm::Value *taskCount = argIter++;
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llvm::Value *taskIndex0 = argIter++;
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llvm::Value *taskIndex1 = argIter++;
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llvm::Value *taskIndex2 = argIter++;
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llvm::Value *taskCount0 = argIter++;
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llvm::Value *taskCount1 = argIter++;
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llvm::Value *taskCount2 = argIter++;
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threadCountSym->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "threadCount");
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ctx->StoreInst(threadCount, threadCountSym->storagePtr);
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// Copy threadIndex and threadCount into stack-allocated storage so
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// that their symbols point to something reasonable.
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threadIndexSym->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "threadIndex");
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ctx->StoreInst(threadIndex, threadIndexSym->storagePtr);
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// Copy taskIndex and taskCount into stack-allocated storage so
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// that their symbols point to something reasonable.
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taskIndexSym->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskIndex");
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ctx->StoreInst(taskIndex, taskIndexSym->storagePtr);
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threadCountSym->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "threadCount");
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ctx->StoreInst(threadCount, threadCountSym->storagePtr);
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taskCountSym->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskCount");
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ctx->StoreInst(taskCount, taskCountSym->storagePtr);
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// Copy taskIndex and taskCount into stack-allocated storage so
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// that their symbols point to something reasonable.
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taskIndexSym->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskIndex");
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ctx->StoreInst(taskIndex, taskIndexSym->storagePtr);
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/* nvptx map:
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* programCount : llvm.nvvm.read.ptx.sreg.warpsize
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* programIndex : llvm.ptx.read.laneid _or_ ed.ptx.sreg.tid.llvm.nvvm.read.ptx.sreg.tid.x & programCount
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* taskIndex0 : llvm.nvvm.read.ptx.sreg.ctaid.x
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* taskIndex1 : llvm.nvvm.read.ptx.sreg.ctaid.y
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* taskIndex3 : llvm.nvvm.read.ptx.sreg.ctaid.z
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* taskCount0 : llvm.nvvm.read.ptx.sreg.nctaid.x
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* taskCount1 : llvm.nvvm.read.ptx.sreg.nctaid.y
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* taskCount3 : llvm.nvvm.read.ptx.sreg.nctaid.z
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*/
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// llvm.nvvm.read.ptx.sreg.ctaid.x
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taskIndexSym0->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskIndex0");
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ctx->StoreInst(taskIndex0, taskIndexSym0->storagePtr);
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// llvm.nvvm.read.ptx.sreg.ctaid.y
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taskIndexSym1->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskIndex1");
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ctx->StoreInst(taskIndex1, taskIndexSym1->storagePtr);
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// llvm.nvvm.read.ptx.sreg.ctaid.z
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taskIndexSym2->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskIndex2");
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ctx->StoreInst(taskIndex2, taskIndexSym2->storagePtr);
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// llvm.nvvm.read.ptx.sreg.nctaid.x
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taskCountSym0->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskCount0");
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ctx->StoreInst(taskCount0, taskCountSym0->storagePtr);
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// llvm.nvvm.read.ptx.sreg.nctaid.y
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taskCountSym1->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskCount1");
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ctx->StoreInst(taskCount1, taskCountSym1->storagePtr);
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// llvm.nvvm.read.ptx.sreg.nctaid.z
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taskCountSym2->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskCount2");
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ctx->StoreInst(taskCount2, taskCountSym2->storagePtr);
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taskCountSym->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskCount");
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ctx->StoreInst(taskCount, taskCountSym->storagePtr);
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/* nvptx map:
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* programCount : llvm.nvvm.read.ptx.sreg.warpsize
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* programIndex : llvm.ptx.read.laneid _or_ ed.ptx.sreg.tid.llvm.nvvm.read.ptx.sreg.tid.x & programCount
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* taskIndex0 : llvm.nvvm.read.ptx.sreg.ctaid.x
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* taskIndex1 : llvm.nvvm.read.ptx.sreg.ctaid.y
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* taskIndex3 : llvm.nvvm.read.ptx.sreg.ctaid.z
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* taskCount0 : llvm.nvvm.read.ptx.sreg.nctaid.x
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* taskCount1 : llvm.nvvm.read.ptx.sreg.nctaid.y
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* taskCount3 : llvm.nvvm.read.ptx.sreg.nctaid.z
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*/
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// llvm.nvvm.read.ptx.sreg.ctaid.x
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taskIndexSym0->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskIndex0");
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ctx->StoreInst(taskIndex0, taskIndexSym0->storagePtr);
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// llvm.nvvm.read.ptx.sreg.ctaid.y
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taskIndexSym1->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskIndex1");
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ctx->StoreInst(taskIndex1, taskIndexSym1->storagePtr);
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// llvm.nvvm.read.ptx.sreg.ctaid.z
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taskIndexSym2->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskIndex2");
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ctx->StoreInst(taskIndex2, taskIndexSym2->storagePtr);
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// llvm.nvvm.read.ptx.sreg.nctaid.x
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taskCountSym0->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskCount0");
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ctx->StoreInst(taskCount0, taskCountSym0->storagePtr);
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// llvm.nvvm.read.ptx.sreg.nctaid.y
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taskCountSym1->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskCount1");
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ctx->StoreInst(taskCount1, taskCountSym1->storagePtr);
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// llvm.nvvm.read.ptx.sreg.nctaid.z
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taskCountSym2->storagePtr = ctx->AllocaInst(LLVMTypes::Int32Type, "taskCount2");
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ctx->StoreInst(taskCount2, taskCountSym2->storagePtr);
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}
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}
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else {
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// Regular, non-task function
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