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Finally fix signed integer conversion and printing

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Ginger Bill
2017-03-10 10:34:25 +00:00
parent e2734a2dc6
commit 0fcbda951a
8 changed files with 253 additions and 84 deletions
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src/ir.c
+7 -14
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@@ -2261,22 +2261,18 @@ irValue *ir_emit_conv(irProcedure *proc, irValue *value, Type *t) {
i64 sz = type_size_of(proc->module->allocator, src);
i64 dz = type_size_of(proc->module->allocator, dst);
irConvKind kind = irConv_trunc;
if (dz == sz) {
if (dz < sz) {
kind = irConv_trunc;
} else if (dz == sz) {
// NOTE(bill): In LLVM, all integers are signed and rely upon 2's compliment
// NOTE(bill): Copy the value just for type correctness
kind = irConv_bitcast;
} else if (dz > sz) {
kind = irConv_zext;
// TODO(bill): figure out the rules completely
bool ss = !is_type_unsigned(src);
bool ds = !is_type_unsigned(dst);
if (ss && ds) {
kind = irConv_sext;
} else if (ss) {
kind = irConv_sext;
if (is_type_unsigned(src)) {
kind = irConv_zext; // zero extent
} else {
kind = irConv_zext;
kind = irConv_sext; // sign extent
}
}
@@ -4900,9 +4896,6 @@ void ir_build_stmt_internal(irProcedure *proc, AstNode *node) {
for_array(i, inits) {
if (lvals.e[i].addr == NULL) {
continue;
}
ir_addr_store(proc, lvals.e[i], inits.e[i]);
}
}