Commit 952d188c authored by Jose Fonseca's avatar Jose Fonseca

gallivm: Add a lp_build_const_elem().

parent 21a6bf86
......@@ -280,34 +280,45 @@ lp_build_one(struct lp_type type)
/**
* Build constant-valued vector from a scalar value.
* Build constant-valued element from a scalar value.
*/
LLVMValueRef
lp_build_const_vec(struct lp_type type,
double val)
lp_build_const_elem(struct lp_type type,
double val)
{
LLVMTypeRef elem_type = lp_build_elem_type(type);
LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
unsigned i;
assert(type.length <= LP_MAX_VECTOR_LENGTH);
LLVMValueRef elem;
if(type.floating) {
elems[0] = LLVMConstReal(elem_type, val);
elem = LLVMConstReal(elem_type, val);
}
else {
double dscale = lp_const_scale(type);
elems[0] = LLVMConstInt(elem_type, val*dscale + 0.5, 0);
elem = LLVMConstInt(elem_type, val*dscale + 0.5, 0);
}
if (type.length == 1)
return elems[0];
return elem;
}
for(i = 1; i < type.length; ++i)
elems[i] = elems[0];
return LLVMConstVector(elems, type.length);
/**
* Build constant-valued vector from a scalar value.
*/
LLVMValueRef
lp_build_const_vec(struct lp_type type,
double val)
{
if (type.length == 1) {
return lp_build_const_elem(type, val);
} else {
LLVMValueRef elems[LP_MAX_VECTOR_LENGTH];
unsigned i;
elems[0] = lp_build_const_elem(type, val);
for(i = 1; i < type.length; ++i)
elems[i] = elems[0];
return LLVMConstVector(elems, type.length);
}
}
......
......@@ -84,6 +84,10 @@ LLVMValueRef
lp_build_one(struct lp_type type);
LLVMValueRef
lp_build_const_elem(struct lp_type type,
double val);
LLVMValueRef
lp_build_const_vec(struct lp_type type, double val);
......
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