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      1 ; RUN: llc < %s | FileCheck %s
      2 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
      3 target triple = "x86_64-unknown-linux-gnu"
      4 
      5 define void @test(i256* %a, i256* %b, i256* %out) #0 {
      6 entry:
      7   %av = load i256, i256* %a
      8   %bv = load i256, i256* %b
      9   %r = mul i256 %av, %bv
     10   store i256 %r, i256* %out
     11   ret void
     12 }
     13 
     14 ; CHECK-LABEL: @test
     15 ; There is a lot of inter-register motion, and so matching the instruction
     16 ; sequence will be fragile. There should be 6 underlying multiplications.
     17 ; CHECK: imulq
     18 ; CHECK: imulq
     19 ; CHECK: imulq
     20 ; CHECK: imulq
     21 ; CHECK: imulq
     22 ; CHECK: imulq
     23 ; CHECK-NOT: imulq
     24 ; CHECK: retq
     25 
     26 attributes #0 = { norecurse nounwind uwtable "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" }
     27 
     28