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comparison src/share/vm/opto/callGenerator.cpp @ 17812:a7d4d4655766

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Merge
author kvn
date Wed, 26 Mar 2014 18:21:05 -0700
parents 752ba2e5f6d0
children 4ca6dc0799b6 968a17f18337
comparison
equal deleted inserted replaced
17789:6b207d038106 17812:a7d4d4655766
199 // be converted to an implicit check based on profile information. 199 // be converted to an implicit check based on profile information.
200 // However currently the conversion to implicit null checks in 200 // However currently the conversion to implicit null checks in
201 // Block::implicit_null_check() only looks for loads and stores, not calls. 201 // Block::implicit_null_check() only looks for loads and stores, not calls.
202 ciMethod *caller = kit.method(); 202 ciMethod *caller = kit.method();
203 ciMethodData *caller_md = (caller == NULL) ? NULL : caller->method_data(); 203 ciMethodData *caller_md = (caller == NULL) ? NULL : caller->method_data();
204 if (!UseInlineCaches || !ImplicitNullChecks || 204 if (!UseInlineCaches || !ImplicitNullChecks || !os::zero_page_read_protected() ||
205 ((ImplicitNullCheckThreshold > 0) && caller_md && 205 ((ImplicitNullCheckThreshold > 0) && caller_md &&
206 (caller_md->trap_count(Deoptimization::Reason_null_check) 206 (caller_md->trap_count(Deoptimization::Reason_null_check)
207 >= (uint)ImplicitNullCheckThreshold))) { 207 >= (uint)ImplicitNullCheckThreshold))) {
208 // Make an explicit receiver null_check as part of this call. 208 // Make an explicit receiver null_check as part of this call.
209 // Since we share a map with the caller, his JVMS gets adjusted. 209 // Since we share a map with the caller, his JVMS gets adjusted.