Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/superword.cpp
src/share/vm/opto/superword.cpp
- changeset 4207
- 410afdc6a07c
- parent 4204
- b2c669fd8114
- child 4620
- ad736b4683b4
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| 4206:006174cfe979 | 4207:410afdc6a07c |
|---|---|
| 1807 // expand a value to signed Int so such right shifts can't be used | 1807 // expand a value to signed Int so such right shifts can't be used |
| 1808 // because vector elements do not have upper bits of Int. | 1808 // because vector elements do not have upper bits of Int. |
| 1809 const Type* vt = vtn; | 1809 const Type* vt = vtn; |
| 1810 if (VectorNode::is_shift(in)) { | 1810 if (VectorNode::is_shift(in)) { |
| 1811 Node* load = in->in(1); | 1811 Node* load = in->in(1); |
| 1812 if (load->is_Load() && (velt_type(load)->basic_type() == T_INT)) { | 1812 if (load->is_Load() && in_bb(load) && (velt_type(load)->basic_type() == T_INT)) { |
| 1813 vt = velt_type(load); | 1813 vt = velt_type(load); |
| 1814 } else if (in->Opcode() != Op_LShiftI) { | 1814 } else if (in->Opcode() != Op_LShiftI) { |
| 1815 // Widen type to Int to avoid creation of right shift vector | 1815 // Widen type to Int to avoid creation of right shift vector |
| 1816 // (align + data_size(s1) check in stmts_can_pack() will fail). | 1816 // (align + data_size(s1) check in stmts_can_pack() will fail). |
| 1817 // Note, left shifts work regardless type. | 1817 // Note, left shifts work regardless type. |
