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Add support for mask vectors of 8 and 16-bit element types.

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There were a number of places throughout the system that assumed that the
execution mask would only have either 32-bit or 1-bit elements.  This
commit makes it possible to have a target with an 8- or 16-bit mask.
This commit is contained in:
Matt Pharr
2013-07-23 16:38:10 -07:00
parent 83e1630fbc
commit e7abf3f2ea
8 changed files with 284 additions and 133 deletions
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36
expr.cpp
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@@ -6161,9 +6161,9 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
// If we have a bool vector of i32 elements, first truncate
// down to a single bit
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
// If we have a bool vector of non-i1 elements, first
// truncate down to a single bit.
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
// And then do an unisgned int->float cast
cast = ctx->CastInst(llvm::Instruction::UIToFP, // unsigned int
@@ -6205,8 +6205,8 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
// truncate i32 bool vector values to i1s
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
// truncate bool vector values to i1s
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->CastInst(llvm::Instruction::UIToFP, // unsigned int to double
exprVal, targetType, cOpName);
@@ -6243,7 +6243,7 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->ZExtInst(exprVal, targetType, cOpName);
break;
@@ -6279,7 +6279,7 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->ZExtInst(exprVal, targetType, cOpName);
break;
@@ -6321,7 +6321,7 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->ZExtInst(exprVal, targetType, cOpName);
break;
@@ -6361,7 +6361,7 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->ZExtInst(exprVal, targetType, cOpName);
break;
@@ -6407,7 +6407,7 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->ZExtInst(exprVal, targetType, cOpName);
break;
@@ -6447,7 +6447,7 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->ZExtInst(exprVal, targetType, cOpName);
break;
@@ -6493,7 +6493,7 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->ZExtInst(exprVal, targetType, cOpName);
break;
@@ -6531,7 +6531,7 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
switch (fromType->basicType) {
case AtomicType::TYPE_BOOL:
if (fromType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType)
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType)
exprVal = ctx->TruncInst(exprVal, LLVMTypes::Int1VectorType, cOpName);
cast = ctx->ZExtInst(exprVal, targetType, cOpName);
break;
@@ -6625,12 +6625,12 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
if (fromType->IsUniformType()) {
if (toType->IsVaryingType() &&
LLVMTypes::BoolVectorType == LLVMTypes::Int32VectorType) {
// extend out to i32 bool values from i1 here. then we'll
// turn into a vector below, the way it does for everyone
// else...
LLVMTypes::BoolVectorType != LLVMTypes::Int1VectorType) {
// extend out to an bool as an i8/i16/i32 from the i1 here.
// Then we'll turn that into a vector below, the way it
// does for everyone else...
cast = ctx->SExtInst(cast, LLVMTypes::BoolVectorType->getElementType(),
LLVMGetName(cast, "to_i32bool"));
LLVMGetName(cast, "to_i_bool"));
}
}
else