diff options
| -rw-r--r-- | qbe.c | 12 |
1 files changed, 9 insertions, 3 deletions
@@ -619,10 +619,16 @@ funcexpr(struct function *f, struct expression *e) op = src->size == 8 ? ICNED : ICNES; } else if (dstprop & PROPINT) { if (srcprop & PROPINT) { - if (dst->size == 8 && src->size <= 4) - op = src->basic.issigned ? IEXTSW : IEXTUW; - else + if (dst->size <= src->size) { op = ICOPY; + } else { + switch (src->size) { + case 4: op = src->basic.issigned ? IEXTSW : IEXTUW; break; + case 2: op = src->basic.issigned ? IEXTSH : IEXTUH; break; + case 1: op = src->basic.issigned ? IEXTSB : IEXTUB; break; + default: fatal("internal error; unknown int conversion"); + } + } } else { if (!dst->basic.issigned) return ftou(f, dst->repr, l); |