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8353192: C2: Clean up x86 backend after 32-bit x86 removal #24300

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8353192: C2: Clean up x86 backend after 32-bit x86 removal #24300

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a66b849
Fix
shipilev Mar 28, 2025
6edebc7
Touchup
shipilev Mar 28, 2025
516b2af
Merge branch 'master' into JDK-8353192-x86-c2-backend
shipilev Apr 7, 2025
c5cacd6
Revert some accidental removals
shipilev Apr 7, 2025
5d0c852
Cleanup ADLC as well
shipilev Apr 7, 2025
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14 changes: 0 additions & 14 deletions src/hotspot/cpu/x86/c2_CodeStubs_x86.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -43,22 +43,8 @@ void C2SafepointPollStub::emit(C2_MacroAssembler& masm) {

__ bind(entry());
InternalAddress safepoint_pc(masm.pc() - masm.offset() + _safepoint_offset);
#ifdef _LP64
__ lea(rscratch1, safepoint_pc);
__ movptr(Address(r15_thread, JavaThread::saved_exception_pc_offset()), rscratch1);
#else
const Register tmp1 = rcx;
const Register tmp2 = rdx;
__ push(tmp1);
__ push(tmp2);

__ lea(tmp1, safepoint_pc);
__ get_thread(tmp2);
__ movptr(Address(tmp2, JavaThread::saved_exception_pc_offset()), tmp1);

__ pop(tmp2);
__ pop(tmp1);
#endif
__ jump(callback_addr);
}

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