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comparison src/cpu/x86/vm/x86_32.ad @ 1567:110501f54a99

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6934104: JSR 292 needs to support SPARC C2 Summary: C2 for SPARC needs to support JSR 292. Reviewed-by: kvn, never
author twisti
date Tue, 25 May 2010 02:38:48 -0700
parents d7f654633cfe
children 3657cb01ffc5
comparison
equal deleted inserted replaced
1566:9f669cf29cb0 1567:110501f54a99
1839 enc_class preserve_SP %{ 1839 enc_class preserve_SP %{
1840 debug_only(int off0 = cbuf.code_size()); 1840 debug_only(int off0 = cbuf.code_size());
1841 MacroAssembler _masm(&cbuf); 1841 MacroAssembler _masm(&cbuf);
1842 // RBP is preserved across all calls, even compiled calls. 1842 // RBP is preserved across all calls, even compiled calls.
1843 // Use it to preserve RSP in places where the callee might change the SP. 1843 // Use it to preserve RSP in places where the callee might change the SP.
1844 __ movptr(rbp, rsp); 1844 __ movptr(rbp_mh_SP_save, rsp);
1845 debug_only(int off1 = cbuf.code_size()); 1845 debug_only(int off1 = cbuf.code_size());
1846 assert(off1 - off0 == preserve_SP_size(), "correct size prediction"); 1846 assert(off1 - off0 == preserve_SP_size(), "correct size prediction");
1847 %} 1847 %}
1848 1848
1849 enc_class restore_SP %{ 1849 enc_class restore_SP %{
1850 MacroAssembler _masm(&cbuf); 1850 MacroAssembler _masm(&cbuf);
1851 __ movptr(rsp, rbp); 1851 __ movptr(rsp, rbp_mh_SP_save);
1852 %} 1852 %}
1853 1853
1854 enc_class Java_Static_Call (method meth) %{ // JAVA STATIC CALL 1854 enc_class Java_Static_Call (method meth) %{ // JAVA STATIC CALL
1855 // CALL to fixup routine. Fixup routine uses ScopeDesc info to determine 1855 // CALL to fixup routine. Fixup routine uses ScopeDesc info to determine
1856 // who we intended to call. 1856 // who we intended to call.
13568 %} 13568 %}
13569 13569
13570 // Call Java Static Instruction (method handle version) 13570 // Call Java Static Instruction (method handle version)
13571 // Note: If this code changes, the corresponding ret_addr_offset() and 13571 // Note: If this code changes, the corresponding ret_addr_offset() and
13572 // compute_padding() functions will have to be adjusted. 13572 // compute_padding() functions will have to be adjusted.
13573 instruct CallStaticJavaHandle(method meth, eBPRegP ebp) %{ 13573 instruct CallStaticJavaHandle(method meth, eBPRegP ebp_mh_SP_save) %{
13574 match(CallStaticJava); 13574 match(CallStaticJava);
13575 predicate(((CallStaticJavaNode*)n)->is_method_handle_invoke()); 13575 predicate(((CallStaticJavaNode*)n)->is_method_handle_invoke());
13576 effect(USE meth); 13576 effect(USE meth);
13577 // EBP is saved by all callees (for interpreter stack correction). 13577 // EBP is saved by all callees (for interpreter stack correction).
13578 // We use it here for a similar purpose, in {preserve,restore}_SP. 13578 // We use it here for a similar purpose, in {preserve,restore}_SP.