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changeset 6708:dc377db2f956

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8031203: remove SafepointPollOffset Reviewed-by: kvn, roland
author twisti
date Wed, 19 Mar 2014 11:37:58 -0700
parents 23ad096319b5
children 2f459c5235f9
files src/cpu/sparc/vm/c1_globals_sparc.hpp src/cpu/x86/vm/c1_LIRAssembler_x86.cpp src/cpu/x86/vm/c1_globals_x86.hpp src/share/vm/c1/c1_globals.hpp src/share/vm/runtime/arguments.cpp
diffstat 5 files changed, 3 insertions(+), 11 deletions(-) [+]
line wrap: on
line diff
--- a/src/cpu/sparc/vm/c1_globals_sparc.hpp	Tue Mar 18 14:22:42 2014 +0100
+++ b/src/cpu/sparc/vm/c1_globals_sparc.hpp	Wed Mar 19 11:37:58 2014 -0700
@@ -66,6 +66,4 @@
 define_pd_global(bool, CSEArrayLength,               true );
 define_pd_global(bool, TwoOperandLIRForm,            false);
 
-define_pd_global(intx, SafepointPollOffset,          0    );
-
 #endif // CPU_SPARC_VM_C1_GLOBALS_SPARC_HPP
--- a/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Tue Mar 18 14:22:42 2014 +0100
+++ b/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp	Wed Mar 19 11:37:58 2014 -0700
@@ -604,8 +604,7 @@
 
   // Note: we do not need to round double result; float result has the right precision
   // the poll sets the condition code, but no data registers
-  AddressLiteral polling_page(os::get_polling_page() + (SafepointPollOffset % os::vm_page_size()),
-                              relocInfo::poll_return_type);
+  AddressLiteral polling_page(os::get_polling_page(), relocInfo::poll_return_type);
 
   if (Assembler::is_polling_page_far()) {
     __ lea(rscratch1, polling_page);
@@ -619,8 +618,7 @@
 
 
 int LIR_Assembler::safepoint_poll(LIR_Opr tmp, CodeEmitInfo* info) {
-  AddressLiteral polling_page(os::get_polling_page() + (SafepointPollOffset % os::vm_page_size()),
-                              relocInfo::poll_type);
+  AddressLiteral polling_page(os::get_polling_page(), relocInfo::poll_type);
   guarantee(info != NULL, "Shouldn't be NULL");
   int offset = __ offset();
   if (Assembler::is_polling_page_far()) {
--- a/src/cpu/x86/vm/c1_globals_x86.hpp	Tue Mar 18 14:22:42 2014 +0100
+++ b/src/cpu/x86/vm/c1_globals_x86.hpp	Wed Mar 19 11:37:58 2014 -0700
@@ -65,6 +65,4 @@
 define_pd_global(bool, CSEArrayLength,               false);
 define_pd_global(bool, TwoOperandLIRForm,            true );
 
-define_pd_global(intx, SafepointPollOffset,          256  );
-
 #endif // CPU_X86_VM_C1_GLOBALS_X86_HPP
--- a/src/share/vm/c1/c1_globals.hpp	Tue Mar 18 14:22:42 2014 +0100
+++ b/src/share/vm/c1/c1_globals.hpp	Wed Mar 19 11:37:58 2014 -0700
@@ -308,9 +308,6 @@
   develop(intx, InstructionCountCutoff, 37000,                              \
           "If GraphBuilder adds this many instructions, bails out")         \
                                                                             \
-  product_pd(intx, SafepointPollOffset,                                     \
-          "Offset added to polling address (Intel only)")                   \
-                                                                            \
   develop(bool, ComputeExactFPURegisterUsage, true,                         \
           "Compute additional live set for fpu registers to simplify fpu stack merge (Intel only)") \
                                                                             \
--- a/src/share/vm/runtime/arguments.cpp	Tue Mar 18 14:22:42 2014 +0100
+++ b/src/share/vm/runtime/arguments.cpp	Wed Mar 19 11:37:58 2014 -0700
@@ -301,6 +301,7 @@
   { "UseMPSS",                       JDK_Version::jdk(8), JDK_Version::jdk(9) },
   { "UseStringCache",                JDK_Version::jdk(8), JDK_Version::jdk(9) },
   { "UseOldInlining",                JDK_Version::jdk(9), JDK_Version::jdk(10) },
+  { "SafepointPollOffset",           JDK_Version::jdk(9), JDK_Version::jdk(10) },
 #ifdef PRODUCT
   { "DesiredMethodLimit",
                            JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) },