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llvm-mirror/test/CodeGen/X86/mulx64.ll

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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* %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
}