Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/c1/c1_LIRGenerator.cpp
src/share/vm/c1/c1_LIRGenerator.cpp
- changeset 7951
- 8fd636dd1c91
- parent 7944
- 8dddcd728302
- parent 7854
- e8260b6328fb
- child 7994
- 04ff2f6cd0eb
- child 8316
- 626f594dffa6
- child 8368
- 32b682649973
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replaced
| 7950:0e5f64fa55c9 | 7951:8fd636dd1c91 |
|---|---|
| 2893 // e) unlock receiver | 2893 // e) unlock receiver |
| 2894 // f) move receiver into receiver-register %o0 | 2894 // f) move receiver into receiver-register %o0 |
| 2895 // g) lock result registers and emit call operation | 2895 // g) lock result registers and emit call operation |
| 2896 // | 2896 // |
| 2897 // Before issuing a call, we must spill-save all values on stack | 2897 // Before issuing a call, we must spill-save all values on stack |
| 2898 // that are in caller-save register. "spill-save" moves thos registers | 2898 // that are in caller-save register. "spill-save" moves those registers |
| 2899 // either in a free callee-save register or spills them if no free | 2899 // either in a free callee-save register or spills them if no free |
| 2900 // callee save register is available. | 2900 // callee save register is available. |
| 2901 // | 2901 // |
| 2902 // The problem is where to invoke spill-save. | 2902 // The problem is where to invoke spill-save. |
| 2903 // - if invoked between e) and f), we may lock callee save | 2903 // - if invoked between e) and f), we may lock callee save |
| 2904 // register in "spill-save" that destroys the receiver register | 2904 // register in "spill-save" that destroys the receiver register |
| 2905 // before f) is executed | 2905 // before f) is executed |
| 2906 // - if we rearange the f) to be earlier, by loading %o0, it | 2906 // - if we rearrange f) to be earlier (by loading %o0) it |
| 2907 // may destroy a value on the stack that is currently in %o0 | 2907 // may destroy a value on the stack that is currently in %o0 |
| 2908 // and is waiting to be spilled | 2908 // and is waiting to be spilled |
| 2909 // - if we keep the receiver locked while doing spill-save, | 2909 // - if we keep the receiver locked while doing spill-save, |
| 2910 // we cannot spill it as it is spill-locked | 2910 // we cannot spill it as it is spill-locked |
| 2911 // | 2911 // |
| 2934 // emit invoke code | 2934 // emit invoke code |
| 2935 bool optimized = x->target_is_loaded() && x->target_is_final(); | 2935 bool optimized = x->target_is_loaded() && x->target_is_final(); |
| 2936 assert(receiver->is_illegal() || receiver->is_equal(LIR_Assembler::receiverOpr()), "must match"); | 2936 assert(receiver->is_illegal() || receiver->is_equal(LIR_Assembler::receiverOpr()), "must match"); |
| 2937 | 2937 |
| 2938 // JSR 292 | 2938 // JSR 292 |
| 2939 // Preserve the SP over MethodHandle call sites. | 2939 // Preserve the SP over MethodHandle call sites, if needed. |
| 2940 ciMethod* target = x->target(); | 2940 ciMethod* target = x->target(); |
| 2941 bool is_method_handle_invoke = (// %%% FIXME: Are both of these relevant? | 2941 bool is_method_handle_invoke = (// %%% FIXME: Are both of these relevant? |
| 2942 target->is_method_handle_intrinsic() || | 2942 target->is_method_handle_intrinsic() || |
| 2943 target->is_compiled_lambda_form()); | 2943 target->is_compiled_lambda_form()); |
| 2944 if (is_method_handle_invoke) { | 2944 if (is_method_handle_invoke) { |
| 2945 info->set_is_method_handle_invoke(true); | 2945 info->set_is_method_handle_invoke(true); |
| 2946 __ move(FrameMap::stack_pointer(), FrameMap::method_handle_invoke_SP_save_opr()); | 2946 if(FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr) { |
| 2947 __ move(FrameMap::stack_pointer(), FrameMap::method_handle_invoke_SP_save_opr()); | |
| 2948 } | |
| 2947 } | 2949 } |
| 2948 | 2950 |
| 2949 switch (x->code()) { | 2951 switch (x->code()) { |
| 2950 case Bytecodes::_invokestatic: | 2952 case Bytecodes::_invokestatic: |
| 2951 __ call_static(target, result_register, | 2953 __ call_static(target, result_register, |
| 2981 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(x->code()))); | 2983 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(x->code()))); |
| 2982 break; | 2984 break; |
| 2983 } | 2985 } |
| 2984 | 2986 |
| 2985 // JSR 292 | 2987 // JSR 292 |
| 2986 // Restore the SP after MethodHandle call sites. | 2988 // Restore the SP after MethodHandle call sites, if needed. |
| 2987 if (is_method_handle_invoke) { | 2989 if (is_method_handle_invoke |
| 2990 && FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr) { | |
| 2988 __ move(FrameMap::method_handle_invoke_SP_save_opr(), FrameMap::stack_pointer()); | 2991 __ move(FrameMap::method_handle_invoke_SP_save_opr(), FrameMap::stack_pointer()); |
| 2989 } | 2992 } |
| 2990 | 2993 |
| 2991 if (x->type()->is_float() || x->type()->is_double()) { | 2994 if (x->type()->is_float() || x->type()->is_double()) { |
| 2992 // Force rounding of results from non-strictfp when in strictfp | 2995 // Force rounding of results from non-strictfp when in strictfp |
