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1019374
2011 Nov 14
2
[LLVMdev] alias analysis in ScheduleDagInstr class
Hi Sergei, thanks for considering my question. We if-convert some code, such that the basic block looks as follows after if-conversion:
ld char from A into R1
p1 = R1>255? (generate the predicate)
p1 | R1 = 255 (conditional execution)
st char R1 to A
ld char from A+1 into R2
p2 = R2>255? (generate the predicate)
p2 | R2 = 255 (conditional execution)
store char R2 to A+1
The problem is