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Fix bug with comparisons with big endian types

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gingerBill
2024-12-12 15:44:49 +00:00
parent cecd7ea0b2
commit 0a29d36aa3
1 changed files with 19 additions and 0 deletions
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src/llvm_backend_expr.cpp
+19
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@@ -2817,6 +2817,12 @@ gb_internal lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left
Type *it = bit_set_to_int(a); Type *it = bit_set_to_int(a);
lbValue lhs = lb_emit_transmute(p, left, it); lbValue lhs = lb_emit_transmute(p, left, it);
lbValue rhs = lb_emit_transmute(p, right, it); lbValue rhs = lb_emit_transmute(p, right, it);
if (is_type_different_to_arch_endianness(it)) {
it = integer_endian_type_to_platform_type(it);
lhs = lb_emit_byte_swap(p, lhs, it);
rhs = lb_emit_byte_swap(p, rhs, it);
}
lbValue res = lb_emit_arith(p, Token_And, lhs, rhs, it); lbValue res = lb_emit_arith(p, Token_And, lhs, rhs, it);
if (op_kind == Token_Lt || op_kind == Token_LtEq) { if (op_kind == Token_Lt || op_kind == Token_LtEq) {
@@ -2914,6 +2920,12 @@ gb_internal lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left
} }
} }
if (is_type_different_to_arch_endianness(left.type)) {
Type *pt = integer_endian_type_to_platform_type(left.type);
lhs = lb_emit_byte_swap(p, {lhs, pt}, pt).value;
rhs = lb_emit_byte_swap(p, {rhs, pt}, pt).value;
}
res.value = LLVMBuildICmp(p->builder, pred, lhs, rhs, ""); res.value = LLVMBuildICmp(p->builder, pred, lhs, rhs, "");
} else if (is_type_float(a)) { } else if (is_type_float(a)) {
LLVMRealPredicate pred = {}; LLVMRealPredicate pred = {};
@@ -2925,6 +2937,13 @@ gb_internal lbValue lb_emit_comp(lbProcedure *p, TokenKind op_kind, lbValue left
case Token_LtEq: pred = LLVMRealOLE; break; case Token_LtEq: pred = LLVMRealOLE; break;
case Token_NotEq: pred = LLVMRealONE; break; case Token_NotEq: pred = LLVMRealONE; break;
} }
if (is_type_different_to_arch_endianness(left.type)) {
Type *pt = integer_endian_type_to_platform_type(left.type);
left = lb_emit_byte_swap(p, left, pt);
right = lb_emit_byte_swap(p, right, pt);
}
res.value = LLVMBuildFCmp(p->builder, pred, left.value, right.value, ""); res.value = LLVMBuildFCmp(p->builder, pred, left.value, right.value, "");
} else if (is_type_typeid(a)) { } else if (is_type_typeid(a)) {
LLVMIntPredicate pred = {}; LLVMIntPredicate pred = {};