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comparison src/share/vm/code/nmethod.cpp @ 3377:2aa9ddbb9e60

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7041789: 30% perf regression with c2/arm following 7017732 Summary: Implement a more accurate is_scavengable() Reviewed-by: stefank, jcoomes, ysr
author jmasa
date Tue, 03 May 2011 10:30:34 -0700
parents 3d58a4983660
children 393e144bb99b
comparison
equal deleted inserted replaced
3373:688202ef6306 3377:2aa9ddbb9e60
1808 #ifndef PRODUCT 1808 #ifndef PRODUCT
1809 nmethod* _print_nm; 1809 nmethod* _print_nm;
1810 void maybe_print(oop* p) { 1810 void maybe_print(oop* p) {
1811 if (_print_nm == NULL) return; 1811 if (_print_nm == NULL) return;
1812 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); 1812 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root");
1813 tty->print_cr(""PTR_FORMAT"[offset=%d] detected non-perm oop "PTR_FORMAT" (found at "PTR_FORMAT")", 1813 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")",
1814 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), 1814 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm),
1815 (intptr_t)(*p), (intptr_t)p); 1815 (intptr_t)(*p), (intptr_t)p);
1816 (*p)->print(); 1816 (*p)->print();
1817 } 1817 }
1818 #endif //PRODUCT 1818 #endif //PRODUCT
2309 if ((*p) == NULL || !(*p)->is_scavengable()) return; 2309 if ((*p) == NULL || !(*p)->is_scavengable()) return;
2310 if (_ok) { 2310 if (_ok) {
2311 _nm->print_nmethod(true); 2311 _nm->print_nmethod(true);
2312 _ok = false; 2312 _ok = false;
2313 } 2313 }
2314 tty->print_cr("*** non-perm oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", 2314 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)",
2315 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); 2315 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm));
2316 (*p)->print(); 2316 (*p)->print();
2317 } 2317 }
2318 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } 2318 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); }
2319 }; 2319 };
2322 if (!on_scavenge_root_list()) { 2322 if (!on_scavenge_root_list()) {
2323 // Actually look inside, to verify the claim that it's clean. 2323 // Actually look inside, to verify the claim that it's clean.
2324 DebugScavengeRoot debug_scavenge_root(this); 2324 DebugScavengeRoot debug_scavenge_root(this);
2325 oops_do(&debug_scavenge_root); 2325 oops_do(&debug_scavenge_root);
2326 if (!debug_scavenge_root.ok()) 2326 if (!debug_scavenge_root.ok())
2327 fatal("found an unadvertised bad non-perm oop in the code cache"); 2327 fatal("found an unadvertised bad scavengable oop in the code cache");
2328 } 2328 }
2329 assert(scavenge_root_not_marked(), ""); 2329 assert(scavenge_root_not_marked(), "");
2330 } 2330 }
2331 2331
2332 #endif // PRODUCT 2332 #endif // PRODUCT