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Codegen casts

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Mid 2024-11-25 18:35:11 +02:00
parent fe0baa26a0
commit 6789984bd1
3 changed files with 10 additions and 4 deletions
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2
src/cg.c
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@ -111,7 +111,7 @@ static const char *xop_sz(AST *e, int sz) {
if(v->kind == VARTABLEENTRY_VAR) { if(v->kind == VARTABLEENTRY_VAR) {
return xv_sz(v, sz); return xv_sz(v, sz);
} else if(v->kind == VARTABLEENTRY_SYMBOL) { } else if(v->kind == VARTABLEENTRY_SYMBOL) {
snprintf(ret, XOPBUFSZ, "[%s]", v->data.symbol.name); snprintf(ret, XOPBUFSZ, "%s [%s]", spec(sz), v->data.symbol.name);
} else abort(); } else abort();
} else if(e->nodeKind == AST_EXPR_PRIMITIVE) { } else if(e->nodeKind == AST_EXPR_PRIMITIVE) {
snprintf(ret, XOPBUFSZ, "%i", e->exprPrim.val); snprintf(ret, XOPBUFSZ, "%i", e->exprPrim.val);

10
src/parse.c
View File

@ -213,11 +213,17 @@ AST *nct_cast_expr(AST *what, Type *to) {
return NULL; return NULL;
} }
if(what->nodeKind == AST_EXPR_PRIMITIVE && to->type == TYPE_TYPE_PRIMITIVE) { if(what->nodeKind == AST_EXPR_PRIMITIVE && (to->type == TYPE_TYPE_PRIMITIVE || to->type == TYPE_TYPE_POINTER)) {
ASTExprPrimitive *ret = malloc(sizeof(*ret)); ASTExprPrimitive *ret = malloc(sizeof(*ret));
ret->nodeKind = AST_EXPR_PRIMITIVE; ret->nodeKind = AST_EXPR_PRIMITIVE;
ret->type = to; ret->type = to;
ret->val = what->exprPrim.val & (((int64_t) 1 << to->primitive.width) - 1);
if(to->type == TYPE_TYPE_PRIMITIVE) {
ret->val = what->exprPrim.val & ((1UL << to->primitive.width) - 1);
} else {
ret->val = what->exprPrim.val & ((1UL << (8 * type_size(to))) - 1);
}
return (AST*) ret; return (AST*) ret;
} else { } else {
ASTExprCast *ret = malloc(sizeof(*ret)); ASTExprCast *ret = malloc(sizeof(*ret));

2
tests/functions.nct
View File

@ -2,7 +2,7 @@ extern s32() getchar;
extern u0(s32) putchar; extern u0(s32) putchar;
loop { loop {
u8 z = 5; s32 z = 5;
s32 a = getchar(); s32 a = getchar();
if(a == -1) { if(a == -1) {
break; break;