28 lines
731 B
LLVM
28 lines
731 B
LLVM
; RUN: llc < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @test(i256* %a, i256* %b, i256* %out) #0 {
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entry:
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%av = load i256, i256* %a
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%bv = load i256, i256* %b
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%r = mul i256 %av, %bv
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store i256 %r, i256* %out
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ret void
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}
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; CHECK-LABEL: @test
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; There is a lot of inter-register motion, and so matching the instruction
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; sequence will be fragile. There should be 6 underlying multiplications.
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; CHECK: imulq
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; CHECK: imulq
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; CHECK: imulq
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; CHECK: imulq
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; CHECK: imulq
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; CHECK: imulq
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; CHECK-NOT: imulq
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; CHECK: retq
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attributes #0 = { norecurse nounwind uwtable "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" }
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