1 ; RUN: llc -mtriple=arm64-apple-ios7.0 -mcpu=cyclone %s -o - | FileCheck %s
2 ; RUN: llc -mtriple=aarch64_be-linux-gnu -mcpu=cyclone %s -o - | FileCheck --check-prefix=CHECK-BE %s
4 define i128 @test_128bitmul(i128 %lhs, i128 %rhs) {
5 ; CHECK-LABEL: test_128bitmul:
6 ; CHECK-DAG: mul [[PART1:x[0-9]+]], x0, x3
7 ; CHECK-DAG: umulh [[CARRY:x[0-9]+]], x0, x2
8 ; CHECK: mul [[PART2:x[0-9]+]], x1, x2
9 ; CHECK: mul x0, x0, x2
11 ; CHECK-BE-LABEL: test_128bitmul:
12 ; CHECK-BE-DAG: mul [[PART1:x[0-9]+]], x1, x2
13 ; CHECK-BE-DAG: umulh [[CARRY:x[0-9]+]], x1, x3
14 ; CHECK-BE: mul [[PART2:x[0-9]+]], x0, x3
15 ; CHECK-BE: mul x1, x1, x3
17 %prod = mul i128 %lhs, %rhs
21 ; The machine combiner should create madd instructions when
22 ; optimizing for size because that's smaller than mul + add.
24 define i128 @test_128bitmul_optsize(i128 %lhs, i128 %rhs) optsize {
25 ; CHECK-LABEL: test_128bitmul_optsize:
26 ; CHECK: umulh [[HI:x[0-9]+]], x0, x2
27 ; CHECK-NEXT: madd [[TEMP1:x[0-9]+]], x0, x3, [[HI]]
28 ; CHECK-NEXT: madd x1, x1, x2, [[TEMP1]]
29 ; CHECK-NEXT: mul x0, x0, x2
32 %prod = mul i128 %lhs, %rhs
36 define i128 @test_128bitmul_minsize(i128 %lhs, i128 %rhs) minsize {
37 ; CHECK-LABEL: test_128bitmul_minsize:
38 ; CHECK: umulh [[HI:x[0-9]+]], x0, x2
39 ; CHECK-NEXT: madd [[TEMP1:x[0-9]+]], x0, x3, [[HI]]
40 ; CHECK-NEXT: madd x1, x1, x2, [[TEMP1]]
41 ; CHECK-NEXT: mul x0, x0, x2
44 %prod = mul i128 %lhs, %rhs