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Add unsigned integer support to C backend by certik · Pull Request #1769 · lcompilers/lpython · GitHub

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Add unsigned integer support to C backend #1769

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Merged
certik merged 1 commit into from
May 10, 2023
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Merged

Add unsigned integer support to C backend #1769

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2 changes: 1 addition & 1 deletion integration_tests/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -311,7 +311,7 @@ RUN(NAME const_03 LABELS cpython llvm c
EXTRAFILES const_03b.c)
RUN(NAME const_04 LABELS cpython llvm c)
RUN(NAME expr_01 LABELS cpython llvm c wasm wasm_x64)
RUN(NAME expr_01u LABELS cpython llvm)
RUN(NAME expr_01u LABELS cpython llvm c)
RUN(NAME expr_02 LABELS cpython llvm c wasm wasm_x64)
RUN(NAME expr_03 LABELS cpython llvm c wasm wasm_x64)
RUN(NAME expr_04 LABELS cpython llvm c wasm)
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38 changes: 38 additions & 0 deletions src/libasr/codegen/asr_to_c.cpp
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Expand Up @@ -316,6 +316,44 @@ class ASRToCVisitor : public BaseCCPPVisitor<ASRToCVisitor>
dims = convert_dims_c(t->n_dims, t->m_dims, v_m_type, is_fixed_size);
sub = format_type_c(dims, type_name, v_m_name, use_ref, dummy);
}
} else if (ASRUtils::is_unsigned_integer(*v_m_type)) {
headers.insert("inttypes.h");
ASR::UnsignedInteger_t *t = ASR::down_cast<ASR::UnsignedInteger_t>(v_m_type);
std::string type_name = "uint" + std::to_string(t->m_kind * 8) + "_t";
if( is_array ) {
bool is_fixed_size = true;
dims = convert_dims_c(t->n_dims, t->m_dims, v_m_type, is_fixed_size, true);
bool is_struct_type_member = ASR::is_a<ASR::StructType_t>(
*ASR::down_cast<ASR::symbol_t>(v.m_parent_symtab->asr_owner));
if( is_fixed_size && is_struct_type_member ) {
if( !force_declare ) {
force_declare_name = std::string(v.m_name);
}
sub = type_name + " " + force_declare_name + dims;
} else {
std::string encoded_type_name = "u" + std::to_string(t->m_kind * 8);
if( !force_declare ) {
force_declare_name = std::string(v.m_name);
}
generate_array_decl(sub, force_declare_name, type_name, dims,
encoded_type_name, t->m_dims, t->n_dims,
use_ref, dummy,
(v.m_intent != ASRUtils::intent_in &&
v.m_intent != ASRUtils::intent_inout &&
v.m_intent != ASRUtils::intent_out &&
!is_struct_type_member) || force_declare,
is_fixed_size, false, v.m_abi);
}
} else {
bool is_fixed_size = true;
std::string v_m_name = v.m_name;
if( declare_as_constant ) {
type_name = "const " + type_name;
v_m_name = const_name;
}
dims = convert_dims_c(t->n_dims, t->m_dims, v_m_type, is_fixed_size);
sub = format_type_c(dims, type_name, v_m_name, use_ref, dummy);
}
} else if (ASRUtils::is_real(*v_m_type)) {
ASR::Real_t *t = ASR::down_cast<ASR::Real_t>(v_m_type);
std::string type_name = "float";
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22 changes: 22 additions & 0 deletions src/libasr/codegen/asr_to_c_cpp.h
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Original file line number Diff line number Diff line change
Expand Up @@ -394,6 +394,14 @@ R"(#include <stdio.h>
case (4) : sub = "int32_t "; break;
case (8) : sub = "int64_t "; break;
}
} else if (ASRUtils::is_unsigned_integer(*return_var->m_type)) {
int kind = ASR::down_cast<ASR::UnsignedInteger_t>(return_var->m_type)->m_kind;
switch (kind) {
case (1) : sub = "uint8_t "; break;
case (2) : sub = "uint16_t "; break;
case (4) : sub = "uint32_t "; break;
case (8) : sub = "uint64_t "; break;
}
} else if (ASRUtils::is_real(*return_var->m_type)) {
bool is_float = ASR::down_cast<ASR::Real_t>(return_var->m_type)->m_kind == 4;
if (is_float) {
Expand Down Expand Up @@ -1382,6 +1390,12 @@ R"(#include <stdio.h>
// src = src;
break;
}
case (ASR::cast_kindType::IntegerToUnsignedInteger) : {
int dest_kind = ASRUtils::extract_kind_from_ttype_t(x.m_type);
src = "(uint" + std::to_string(dest_kind * 8) + "_t)(" + src + ")";
last_expr_precedence = 2;
break;
}
case (ASR::cast_kindType::ComplexToComplex) : {
break;
}
Expand Down Expand Up @@ -1522,6 +1536,10 @@ R"(#include <stdio.h>
handle_Compare(x);
}

void visit_UnsignedIntegerCompare(const ASR::UnsignedIntegerCompare_t &x) {
handle_Compare(x);
}

void visit_RealCompare(const ASR::RealCompare_t &x) {
handle_Compare(x);
}
Expand Down Expand Up @@ -1672,6 +1690,10 @@ R"(#include <stdio.h>
handle_BinOp(x);
}

void visit_UnsignedIntegerBinOp(const ASR::UnsignedIntegerBinOp_t &x) {
handle_BinOp(x);
}

void visit_RealBinOp(const ASR::RealBinOp_t &x) {
handle_BinOp(x);
}
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