1; RUN: llc < %s | FileCheck %s 2target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 3target triple = "x86_64-unknown-linux-gnu" 4 5define void @test(i256* %a, i256* %b, i256* %out) #0 { 6entry: 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 26attributes #0 = { norecurse nounwind uwtable "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" } 27 28