-; RUN: llc -mtriple=aarch64-linux-gnu %s -o - | FileCheck %s
+; RUN: llc -mtriple=arm64-apple-ios7.0 -mcpu=cyclone %s -o - | FileCheck %s
+; RUN: llc -mtriple=aarch64_be-linux-gnu -mcpu=cyclone %s -o - | FileCheck --check-prefix=CHECK-BE %s
define i128 @test_128bitmul(i128 %lhs, i128 %rhs) {
-; CHECK: test_128bitmul:
+; CHECK-LABEL: test_128bitmul:
+; CHECK-DAG: mul [[PART1:x[0-9]+]], x0, x3
; CHECK-DAG: umulh [[CARRY:x[0-9]+]], x0, x2
-; CHECK-DAG: madd [[PART1:x[0-9]+]], x0, x3, [[CARRY]]
-; CHECK: madd x1, x1, x2, [[PART1]]
+; CHECK: mul [[PART2:x[0-9]+]], x1, x2
; CHECK: mul x0, x0, x2
+; CHECK-BE-LABEL: test_128bitmul:
+; CHECK-BE-DAG: mul [[PART1:x[0-9]+]], x1, x2
+; CHECK-BE-DAG: umulh [[CARRY:x[0-9]+]], x1, x3
+; CHECK-BE: mul [[PART2:x[0-9]+]], x0, x3
+; CHECK-BE: mul x1, x1, x3
+
+ %prod = mul i128 %lhs, %rhs
+ ret i128 %prod
+}
+
+; The machine combiner should create madd instructions when
+; optimizing for size because that's smaller than mul + add.
+
+define i128 @test_128bitmul_optsize(i128 %lhs, i128 %rhs) optsize {
+; CHECK-LABEL: test_128bitmul_optsize:
+; CHECK: umulh [[HI:x[0-9]+]], x0, x2
+; CHECK-NEXT: madd [[TEMP1:x[0-9]+]], x0, x3, [[HI]]
+; CHECK-NEXT: madd x1, x1, x2, [[TEMP1]]
+; CHECK-NEXT: mul x0, x0, x2
+; CHECK-NEXT: ret
+
%prod = mul i128 %lhs, %rhs
ret i128 %prod
}
+
+define i128 @test_128bitmul_minsize(i128 %lhs, i128 %rhs) minsize {
+; CHECK-LABEL: test_128bitmul_minsize:
+; CHECK: umulh [[HI:x[0-9]+]], x0, x2
+; CHECK-NEXT: madd [[TEMP1:x[0-9]+]], x0, x3, [[HI]]
+; CHECK-NEXT: madd x1, x1, x2, [[TEMP1]]
+; CHECK-NEXT: mul x0, x0, x2
+; CHECK-NEXT: ret
+
+ %prod = mul i128 %lhs, %rhs
+ ret i128 %prod
+}
+