[RISCV] Assertion failed: (MinNumElts > 0 && "#Elements of a VectorType must be greater than 0") #106970
Description
I'm running into a crash when building SPEC CPU 2017 with rva22u64_v -O3 that I've bisected back to 239127d
target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
target triple = "riscv64-unknown-linux-gnu"
define void @Perl_sortsv_flags() #0 {
entry:
ret void
while.cond.i.i: ; preds = %vector.ph165, %while.cond.i.i
br label %while.cond.i.i
vector.ph165: ; No predecessors!
%wide.vec = load <vscale x 4 x ptr>, ptr null, align 8
%strided.vec = call { <vscale x 2 x ptr>, <vscale x 2 x ptr> } @llvm.vector.deinterleave2.nxv4p0(<vscale x 4 x ptr> %wide.vec)
br label %while.cond.i.i
}
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
declare { <vscale x 2 x ptr>, <vscale x 2 x ptr> } @llvm.vector.deinterleave2.nxv4p0(<vscale x 4 x ptr>) #1
attributes #0 = { "target-features"="+64bit,+a,+c,+d,+f,+m,+relax,+v,+za64rs,+zba,+zbb,+zbs,+zfhmin,+zic64b,+zicbom,+zicbop,+zicboz,+ziccamoa,+ziccif,+zicclsm,+ziccrse,+zicntr,+zicsr,+zihintpause,+zihpm,+zkt,+zmmul,+zve32f,+zve32x,+zve64d,+zve64f,+zve64x,+zvl128b,+zvl32b,+zvl64b,-b,-e,-experimental-smctr,-experimental-smmpm,-experimental-smnpm,-experimental-ssctr,-experimental-ssnpm,-experimental-sspm,-experimental-supm,-experimental-zacas,-experimental-zalasr,-experimental-zicfilp,-experimental-zicfiss,-experimental-zvbc32e,-experimental-zvkgs,-h,-shcounterenw,-shgatpa,-shtvala,-shvsatpa,-shvstvala,-shvstvecd,-smaia,-smcdeleg,-smcsrind,-smepmp,-smstateen,-ssaia,-ssccfg,-ssccptr,-sscofpmf,-sscounterenw,-sscsrind,-ssqosid,-ssstateen,-ssstrict,-sstc,-sstvala,-sstvecd,-ssu64xl,-svade,-svadu,-svbare,-svinval,-svnapot,-svpbmt,-xcvalu,-xcvbi,-xcvbitmanip,-xcvelw,-xcvmac,-xcvmem,-xcvsimd,-xsfcease,-xsfvcp,-xsfvfnrclipxfqf,-xsfvfwmaccqqq,-xsfvqmaccdod,-xsfvqmaccqoq,-xsifivecdiscarddlone,-xsifivecflushdlone,-xtheadba,-xtheadbb,-xtheadbs,-xtheadcmo,-xtheadcondmov,-xtheadfmemidx,-xtheadmac,-xtheadmemidx,-xtheadmempair,-xtheadsync,-xtheadvdot,-xventanacondops,-xwchc,-za128rs,-zaamo,-zabha,-zalrsc,-zama16b,-zawrs,-zbc,-zbkb,-zbkc,-zbkx,-zca,-zcb,-zcd,-zce,-zcf,-zcmop,-zcmp,-zcmt,-zdinx,-zfa,-zfbfmin,-zfh,-zfinx,-zhinx,-zhinxmin,-zicond,-zifencei,-zihintntl,-zimop,-zk,-zkn,-zknd,-zkne,-zknh,-zkr,-zks,-zksed,-zksh,-ztso,-zvbb,-zvbc,-zvfbfmin,-zvfbfwma,-zvfh,-zvfhmin,-zvkb,-zvkg,-zvkn,-zvknc,-zvkned,-zvkng,-zvknha,-zvknhb,-zvks,-zvksc,-zvksed,-zvksg,-zvksh,-zvkt,-zvl1024b,-zvl16384b,-zvl2048b,-zvl256b,-zvl32768b,-zvl4096b,-zvl512b,-zvl65536b,-zvl8192b" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(none) }The reduced case above hits an assertion in llvm::RISCVTargetLowering::lowerDeinterleaveIntrinsicToLoad:
Assertion failed: (MinNumElts > 0 && "#Elements of a VectorType must be greater than 0"), function get, file Type.cpp, line 711.
I haven't looked into it fully just yet, but I wonder if it's something related to pointer types.