diff options
| -rw-r--r-- | amd64/isel.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/amd64/isel.c b/amd64/isel.c index 31199da..e8a78f3 100644 --- a/amd64/isel.c +++ b/amd64/isel.c @@ -244,13 +244,18 @@ sel(Ins i, ANum *an, Fn *fn) case Osar: case Oshr: case Oshl: - if (rtype(i.arg[1]) == RCon) - goto Emit; r0 = i.arg[1]; + if (rtype(r0) == RCon) + goto Emit; + if (fn->tmp[r0.val].slot != -1) + err("unlikely argument %%%s in %s", + fn->tmp[r0.val].name, optab[i.op].name); i.arg[1] = TMP(RCX); emit(Ocopy, Kw, R, TMP(RCX), R); emiti(i); + i1 = curi; emit(Ocopy, Kw, TMP(RCX), r0, R); + fixarg(&i1->arg[0], argcls(&i, 0), i1, fn); break; case Onop: break; @@ -336,7 +341,7 @@ Emit: die("unknown instruction %s", optab[i.op].name); } - while (i0 > curi && --i0) { + while (i0>curi && --i0) { assert(rslot(i0->arg[0], fn) == -1); assert(rslot(i0->arg[1], fn) == -1); } |