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andn32rr
2010 Oct 29
1
[LLVMdev] [LLVMDev] Register Allocation and Kill Flags
...%reg16384<def> = MOV32rm <fi#-1>, 1, %reg0, 0, %reg0;
mem:LD4[FixedStack-1] GR32:%reg16384
%reg16388<def> = MOV32ri 1; GR32:%reg16388
%reg16392<def> = XOR32ri %reg16385, 4294967294, %EFLAGS<imp-def>;
GR32:%reg16392,16385
%reg16391<def> = AND32rr *%reg16392<kill>*, %reg16384,
%EFLAGS<imp-def>; GR32:%reg16391,16392,16384
%reg16389<def> = SHR32ri %reg16391, 1, %EFLAGS<imp-def>;
GR32:%reg16389,16391
%EAX<def> = COPY %reg16389; GR32:%reg16389
RET
After my reg allocation I have
# After Registe...