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https://github.com/KhronosGroup/glslang
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SPV: Fix #1258: cache constant structs by id, not opcode.
Constants were generally cached by type opcode, but all structures share the same type opcode (OpTypeStruct), so they need to be cached by type id.
This commit is contained in:
John Kessenich
parent
57f6a016f0
commit
46413d5780
@ -622,7 +622,7 @@ Id Builder::getContainedTypeId(Id typeId) const
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// See if a scalar constant of this type has already been created, so it
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// can be reused rather than duplicated. (Required by the specification).
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Id Builder::findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned value) const
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Id Builder::findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned value)
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{
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Instruction* constant;
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for (int i = 0; i < (int)groupedConstants[typeClass].size(); ++i) {
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@ -637,7 +637,7 @@ Id Builder::findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned valu
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}
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// Version of findScalarConstant (see above) for scalars that take two operands (e.g. a 'double' or 'int64').
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Id Builder::findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned v1, unsigned v2) const
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Id Builder::findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned v1, unsigned v2)
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{
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Instruction* constant;
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for (int i = 0; i < (int)groupedConstants[typeClass].size(); ++i) {
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@ -849,7 +849,7 @@ Id Builder::makeFloat16Constant(float f16, bool specConstant)
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}
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#endif
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Id Builder::findCompositeConstant(Op typeClass, const std::vector<Id>& comps) const
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Id Builder::findCompositeConstant(Op typeClass, const std::vector<Id>& comps)
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{
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Instruction* constant = 0;
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bool found = false;
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@ -877,6 +877,30 @@ Id Builder::findCompositeConstant(Op typeClass, const std::vector<Id>& comps) co
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return found ? constant->getResultId() : NoResult;
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}
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Id Builder::findStructConstant(Id typeId, const std::vector<Id>& comps)
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{
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Instruction* constant = 0;
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bool found = false;
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for (int i = 0; i < (int)groupedStructConstants[typeId].size(); ++i) {
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constant = groupedStructConstants[typeId][i];
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// same contents?
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bool mismatch = false;
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for (int op = 0; op < constant->getNumOperands(); ++op) {
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if (constant->getIdOperand(op) != comps[op]) {
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mismatch = true;
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break;
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}
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}
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if (! mismatch) {
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found = true;
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break;
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}
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}
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return found ? constant->getResultId() : NoResult;
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}
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// Comments in header
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Id Builder::makeCompositeConstant(Id typeId, const std::vector<Id>& members, bool specConstant)
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{
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@ -887,24 +911,32 @@ Id Builder::makeCompositeConstant(Id typeId, const std::vector<Id>& members, boo
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switch (typeClass) {
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case OpTypeVector:
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case OpTypeArray:
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case OpTypeStruct:
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case OpTypeMatrix:
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if (! specConstant) {
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Id existing = findCompositeConstant(typeClass, members);
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if (existing)
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return existing;
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}
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break;
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case OpTypeStruct:
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if (! specConstant) {
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Id existing = findStructConstant(typeId, members);
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if (existing)
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return existing;
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}
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break;
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default:
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assert(0);
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return makeFloatConstant(0.0);
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}
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if (! specConstant) {
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Id existing = findCompositeConstant(typeClass, members);
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if (existing)
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return existing;
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}
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Instruction* c = new Instruction(getUniqueId(), typeId, opcode);
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for (int op = 0; op < (int)members.size(); ++op)
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c->addIdOperand(members[op]);
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constantsTypesGlobals.push_back(std::unique_ptr<Instruction>(c));
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if (typeClass == OpTypeStruct)
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groupedStructConstants[typeId].push_back(c);
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else
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groupedConstants[typeClass].push_back(c);
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module.mapInstruction(c);
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@ -55,6 +55,7 @@
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#include <set>
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#include <sstream>
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#include <stack>
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#include <unordered_map>
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namespace spv {
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@ -149,7 +150,7 @@ public:
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bool isAggregate(Id resultId) const { return isAggregateType(getTypeId(resultId)); }
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bool isSampledImage(Id resultId) const { return isSampledImageType(getTypeId(resultId)); }
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bool isBoolType(Id typeId) const { return groupedTypes[OpTypeBool].size() > 0 && typeId == groupedTypes[OpTypeBool].back()->getResultId(); }
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bool isBoolType(Id typeId) { return groupedTypes[OpTypeBool].size() > 0 && typeId == groupedTypes[OpTypeBool].back()->getResultId(); }
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bool isIntType(Id typeId) const { return getTypeClass(typeId) == OpTypeInt && module.getInstruction(typeId)->getImmediateOperand(1) != 0; }
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bool isUintType(Id typeId) const { return getTypeClass(typeId) == OpTypeInt && module.getInstruction(typeId)->getImmediateOperand(1) == 0; }
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bool isFloatType(Id typeId) const { return getTypeClass(typeId) == OpTypeFloat; }
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@ -576,9 +577,10 @@ public:
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protected:
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Id makeIntConstant(Id typeId, unsigned value, bool specConstant);
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Id makeInt64Constant(Id typeId, unsigned long long value, bool specConstant);
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Id findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned value) const;
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Id findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned v1, unsigned v2) const;
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Id findCompositeConstant(Op typeClass, const std::vector<Id>& comps) const;
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Id findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned value);
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Id findScalarConstant(Op typeClass, Op opcode, Id typeId, unsigned v1, unsigned v2);
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Id findCompositeConstant(Op typeClass, const std::vector<Id>& comps);
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Id findStructConstant(Id typeId, const std::vector<Id>& comps);
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Id collapseAccessChain();
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void remapDynamicSwizzle();
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void transferAccessChainSwizzle(bool dynamic);
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@ -622,8 +624,9 @@ public:
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std::vector<std::unique_ptr<Function> > functions;
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// not output, internally used for quick & dirty canonical (unique) creation
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std::vector<Instruction*> groupedConstants[OpConstant]; // all types appear before OpConstant
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std::vector<Instruction*> groupedTypes[OpConstant];
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std::unordered_map<unsigned int, std::vector<Instruction*>> groupedConstants; // map type opcodes to constant inst.
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std::unordered_map<unsigned int, std::vector<Instruction*>> groupedStructConstants; // map struct-id to constant instructions
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std::unordered_map<unsigned int, std::vector<Instruction*>> groupedTypes; // map type opcodes to type instructions
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// stack of switches
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std::stack<Block*> switchMerges;
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45
Test/baseResults/spv.constStruct.vert.out
Executable file
45
Test/baseResults/spv.constStruct.vert.out
Executable file
@ -0,0 +1,45 @@
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spv.constStruct.vert
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// Module Version 10000
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// Generated by (magic number): 80004
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// Id's are bound by 23
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Capability Shader
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1: ExtInstImport "GLSL.std.450"
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MemoryModel Logical GLSL450
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EntryPoint Vertex 4 "main"
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Source GLSL 450
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Name 4 "main"
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Name 9 "T"
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MemberName 9(T) 0 "m"
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Name 10 "U"
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MemberName 10(U) 0 "m"
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Name 11 "S"
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MemberName 11(S) 0 "t"
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MemberName 11(S) 1 "u"
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Name 13 "s1"
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Name 22 "s2"
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2: TypeVoid
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3: TypeFunction 2
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6: TypeFloat 32
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7: TypeVector 6(float) 2
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8: TypeMatrix 7(fvec2) 2
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9(T): TypeStruct 8
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10(U): TypeStruct 8
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11(S): TypeStruct 9(T) 10(U)
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12: TypePointer Function 11(S)
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14: 6(float) Constant 1065353216
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15: 6(float) Constant 0
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16: 7(fvec2) ConstantComposite 14 15
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17: 7(fvec2) ConstantComposite 15 14
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18: 8 ConstantComposite 16 17
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19: 9(T) ConstantComposite 18
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20: 10(U) ConstantComposite 18
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21: 11(S) ConstantComposite 19 20
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4(main): 2 Function None 3
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5: Label
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13(s1): 12(ptr) Variable Function
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22(s2): 12(ptr) Variable Function
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Store 13(s1) 21
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Store 22(s2) 21
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Return
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FunctionEnd
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22
Test/spv.constStruct.vert
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22
Test/spv.constStruct.vert
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@ -0,0 +1,22 @@
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#version 450
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precision highp float;
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struct U {
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mat2 m;
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};
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struct T {
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mat2 m;
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};
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struct S {
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T t;
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U u;
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};
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void main()
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{
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S s1 = S(T(mat2(1.0)), U(mat2(1.0)));
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S s2 = S(T(mat2(1.0)), U(mat2(1.0)));
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}
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@ -235,6 +235,7 @@ INSTANTIATE_TEST_CASE_P(
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"spv.branch-return.vert",
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"spv.builtInXFB.vert",
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"spv.conditionalDiscard.frag",
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"spv.constStruct.vert",
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"spv.controlFlowAttributes.frag",
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"spv.conversion.frag",
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"spv.dataOut.frag",
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