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Minor clean up for lb_matrix_trimmed_vector_mask

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gingerBill
2021-10-20 15:36:24 +01:00
parent d3abc1a2b4
commit 30c141ceb9
1 changed files with 8 additions and 6 deletions
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14
src/llvm_backend_expr.cpp
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@@ -517,18 +517,14 @@ LLVMValueRef lb_matrix_to_vector(lbProcedure *p, lbValue matrix) {
return matrix_vector;
}
LLVMValueRef lb_matrix_to_trimmed_vector(lbProcedure *p, lbValue m) {
Type *mt = base_type(m.type);
LLVMValueRef lb_matrix_trimmed_vector_mask(lbProcedure *p, Type *mt) {
mt = base_type(mt);
GB_ASSERT(mt->kind == Type_Matrix);
unsigned stride = cast(unsigned)matrix_type_stride_in_elems(mt);
unsigned row_count = cast(unsigned)mt->Matrix.row_count;
unsigned column_count = cast(unsigned)mt->Matrix.column_count;
auto columns = slice_make<LLVMValueRef>(permanent_allocator(), column_count);
LLVMValueRef vector = lb_matrix_to_vector(p, m);
unsigned mask_elems_index = 0;
auto mask_elems = slice_make<LLVMValueRef>(permanent_allocator(), row_count*column_count);
for (unsigned j = 0; j < column_count; j++) {
@@ -539,6 +535,12 @@ LLVMValueRef lb_matrix_to_trimmed_vector(lbProcedure *p, lbValue m) {
}
LLVMValueRef mask = LLVMConstVector(mask_elems.data, cast(unsigned)mask_elems.count);
return mask;
}
LLVMValueRef lb_matrix_to_trimmed_vector(lbProcedure *p, lbValue m) {
LLVMValueRef vector = lb_matrix_to_vector(p, m);
LLVMValueRef mask = lb_matrix_trimmed_vector_mask(p, m.type);
LLVMValueRef trimmed_vector = LLVMBuildShuffleVector(p->builder, vector, LLVMGetUndef(LLVMTypeOf(vector)), mask, "");
return trimmed_vector;
}