search for: start_macroblock

Hi Akira, > I am running into a problem when I turn on post-RA scheduler with mode > "ANTIDEP_CRITICAL" for mips. > I'd appreciate if someone could explain what is going wrong here. All these passes are pretty sensitive to correct register liveness information. As a first step I'd check whether machine verifier reports no errors here. -- With best regards, Anton

...error messages are printed because the verifier does not understand that mips has delay slots, not because it has detected any true violations. $ llc macroblock.llvm.mips64el.ll -mcpu=mips64r2 -O3 -o macroblock.s -mattr=n64 -verify-machineinstrs # After PreEmit passes # Machine code for function start_macroblock: Post SSA BB#0: derived from LLVM BB %entry Live Ins: %A0_64 %T9_64 %RA_64 %S3_64 %S2_64 %S1_64 %S0_64 BEQ %A0<kill>, %ZERO, <BB#2> NOP Successors according to CFG: BB#2 BB#1 # End machine code for function start_macroblock. *** Bad machine code: MBB exits via uncondi...

I am running into a problem when I turn on post-RA scheduler with mode "ANTIDEP_CRITICAL" for mips. I'd appreciate if someone could explain what is going wrong here. This is the basic block before post RA scheduling (at PostRASchedulerList.cpp:322): *(gdb) #3 0x0000000000ed3d26 in runOnMachineFunction (this=0x20aa470, Fn=...) at lib/CodeGen/PostRASchedulerList.cpp:322 322