diff options
| author | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-08-17 19:00:51 -0400 |
|---|---|---|
| committer | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-09-15 23:01:31 -0400 |
| commit | 40d0582ee06232bf8290fafca476a3288488743d (patch) | |
| tree | 7c3e4545237f662f5a40c2a0f42eb3aea7a94cad /lisc/emit.c | |
| parent | 5668e93147563c824e693255de5e58fdc398a36b (diff) | |
| download | roux-40d0582ee06232bf8290fafca476a3288488743d.tar.gz | |
add sign/zero extension operations
Diffstat (limited to 'lisc/emit.c')
| -rw-r--r-- | lisc/emit.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lisc/emit.c b/lisc/emit.c index 9d59890..e9887ef 100644 --- a/lisc/emit.c +++ b/lisc/emit.c @@ -130,6 +130,8 @@ eins(Ins i, Fn *fn, FILE *f) [OSub] = "sub", [OMul] = "imul", [OAnd] = "and", + [OSext] = "movslq", + [OZext] = "movzlq", [OLoad] = "mov", [OLoadss] = "movsw", [OLoadus] = "movzw", @@ -182,6 +184,13 @@ eins(Ins i, Fn *fn, FILE *f) eop("mov", i.arg[0], i.to, fn, f); eop(otoa[i.op], i.arg[1], i.to, fn, f); break; + case OSext: + case OZext: + if (rtype(i.to) != RTmp || i.to.val >= EAX + || (rtype(i.arg[0]) == RTmp && i.arg[0].val < EAX)) + diag("emit: invalid extension"); + eop(otoa[i.op], i.arg[0], i.to, fn, f); + break; case OCopy: if (req(i.to, R)) break; |