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2018 Sep 20
2
Errononous scheduling of COPY instruction.
Hi, I've instruction scheduling problem that I cannot further investigate by myself... Could someone give me some clues? After Instruction selection, here is part of the generated instruction. NOP MOV_AB_ro @s1, %fab_roff0 %6:fpuaoffsetclass = COPY %fab_roff0; FPUaOffsetClass:%6 MOV_A_oo %6, def %5; FPUaOffsetClass:%6,%5 MOVSUTO_A_iSLo 24575, def %7; FPUaOffsetClass:%7 The order of instruction is very important: the COPY shall take place after the MOV_AB_ro! But during Instruction scheduling...