decq              915 src/x64/assembler-x64.h   void decq(Register dst);
decq              916 src/x64/assembler-x64.h   void decq(const Operand& dst);
decq              315 src/x64/builtins-x64.cc     __ decq(rcx);
decq              749 src/x64/builtins-x64.cc     __ decq(rcx);
decq              752 src/x64/builtins-x64.cc     __ decq(rax);  // One fewer argument (first argument is new receiver).
decq             1055 src/x64/builtins-x64.cc     __ decq(scratch2);
decq             1281 src/x64/builtins-x64.cc   __ decq(rcx);
decq             1326 src/x64/builtins-x64.cc   __ decq(rcx);
decq             2726 src/x64/code-stubs-x64.cc   __ decq(rcx);
decq              359 src/x64/codegen-x64.cc   __ decq(r9);
decq              448 src/x64/codegen-x64.cc   __ decq(r9);
decq              159 test/cctest/test-disasm-x64.cc   __ decq(rdx);