File: extmul64.ll

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llvm-toolchain-3.9 1%3A3.9.1-8
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; RUN: llc < %s -march=x86 | grep mul | count 2

define i64 @i32_sext_i64(i32 %a, i32 %b) {
  %aa = sext i32 %a to i64
  %bb = sext i32 %b to i64
  %cc = mul i64 %aa, %bb
  ret i64 %cc
}
define i64 @i32_zext_i64(i32 %a, i32 %b) {
  %aa = zext i32 %a to i64
  %bb = zext i32 %b to i64
  %cc = mul i64 %aa, %bb
  ret i64 %cc
}