1; Test 128-bit subtraction when the distinct-operands facility is available.
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
4
5; Test the case where both operands are in registers.
6define i64 @f1(i64 %a, i64 %b, i64 %c, i64 %d, i64 *%ptr) {
7; CHECK-LABEL: f1:
8; CHECK: slgrk %r2, %r4, %r5
9; CHECK: slbgr
10; CHECK: br %r14
11  %x1 = insertelement <2 x i64> undef, i64 %b, i32 0
12  %x2 = insertelement <2 x i64> %x1, i64 %c, i32 1
13  %x = bitcast <2 x i64> %x2 to i128
14  %y2 = insertelement <2 x i64> %x1, i64 %d, i32 1
15  %y = bitcast <2 x i64> %y2 to i128
16  %sub = sub i128 %x, %y
17  %subv = bitcast i128 %sub to <2 x i64>
18  %high = extractelement <2 x i64> %subv, i32 0
19  store i64 %high, i64 *%ptr
20  %low = extractelement <2 x i64> %subv, i32 1
21  ret i64 %low
22}
23