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view test/CodeGen/X86/mulx64.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 95c75e76d11b
children 803732b1fca8
line wrap: on
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; RUN: llc -mcpu=core-avx2 -march=x86-64 < %s | FileCheck %s

define i128 @f1(i64 %a, i64 %b) {
  %x = zext i64 %a to i128
  %y = zext i64 %b to i128
  %r = mul i128 %x, %y
; CHECK: f1
; CHECK: mulxq
; CHECK: ret
  ret i128 %r
}

define i128 @f2(i64 %a, i64* %p) {
  %b = load i64, i64* %p
  %x = zext i64 %a to i128
  %y = zext i64 %b to i128
  %r = mul i128 %x, %y
; CHECK: f2
; CHECK: mulxq ({{.+}}), %{{.+}}, %{{.+}}
; CHECK: ret
  ret i128 %r
}