diff options
Diffstat (limited to 'src/cmd/6c/cgen.c')
| -rw-r--r-- | src/cmd/6c/cgen.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/cmd/6c/cgen.c b/src/cmd/6c/cgen.c index 71822586c..95400c445 100644 --- a/src/cmd/6c/cgen.c +++ b/src/cmd/6c/cgen.c @@ -265,6 +265,18 @@ cgen(Node *n, Node *nn) break; } } + if(n->op == OOR && l->op == OASHL && r->op == OLSHR + && l->right->op == OCONST && r->right->op == OCONST + && l->left->op == ONAME && r->left->op == ONAME + && l->left->sym == r->left->sym + && l->right->vconst + r->right->vconst == 8 * l->left->type->width) { + regalloc(&nod, l->left, nn); + cgen(l->left, &nod); + gopcode(OROTL, n->type, l->right, &nod); + gmove(&nod, nn); + regfree(&nod); + break; + } if(n->op == OADD && l->op == OASHL && l->right->op == OCONST && (r->op != OCONST || r->vconst < -128 || r->vconst > 127)) { c = l->right->vconst; @@ -1672,7 +1684,7 @@ copy: regsalloc(&nod2, nn); nn->type = t; - gins(AMOVL, &nod1, &nod2); + gins(AMOVQ, &nod1, &nod2); regfree(&nod1); nod2.type = typ(TIND, t); |