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Add FunctionEmitContext::SmearScalar() method (and use it).

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This commit is contained in:
Matt Pharr
2011-11-03 16:07:36 -07:00
parent 7d6f89c8d2
commit d528533fba
3 changed files with 41 additions and 10 deletions
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13
expr.cpp
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@@ -4590,13 +4590,8 @@ lTypeConvAtomic(FunctionEmitContext *ctx, llvm::Value *exprVal,
// If we also want to go from uniform to varying, replicate out the
// value across the vector elements..
if (toType->IsVaryingType() && fromType->IsUniformType()) {
LLVM_TYPE_CONST llvm::Type *vtype = toType->LLVMType(g->ctx);
llvm::Value *castVec = llvm::UndefValue::get(vtype);
for (int i = 0; i < g->target.vectorWidth; ++i)
castVec = ctx->InsertInst(castVec, cast, i, "smearinsert");
return castVec;
}
if (toType->IsVaryingType() && fromType->IsUniformType())
return ctx->SmearScalar(cast);
else
return cast;
}
@@ -4631,9 +4626,7 @@ lUniformValueToVarying(FunctionEmitContext *ctx, llvm::Value *value,
// Otherwise we must have a uniform AtomicType, so smear its value
// across the vector lanes.
assert(dynamic_cast<const AtomicType *>(type) != NULL);
for (int i = 0; i < g->target.vectorWidth; ++i)
retValue = ctx->InsertInst(retValue, value, i, "smearinsert");
return retValue;
return ctx->SmearScalar(value);
}