1; Test negated floating-point absolute.
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
4; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
5
6; Test f32.
7declare float @llvm.fabs.f32(float %f)
8define float @f1(float %f) {
9; CHECK-LABEL: f1:
10; CHECK: lndfr %f0, %f0
11; CHECK: br %r14
12  %abs = call float @llvm.fabs.f32(float %f)
13  %res = fneg float %abs
14  ret float %res
15}
16
17; Test f64.
18declare double @llvm.fabs.f64(double %f)
19define double @f2(double %f) {
20; CHECK-LABEL: f2:
21; CHECK: lndfr %f0, %f0
22; CHECK: br %r14
23  %abs = call double @llvm.fabs.f64(double %f)
24  %res = fneg double %abs
25  ret double %res
26}
27
28; Test f128.  With the loads and stores, a pure negative-absolute would
29; probably be better implemented using an OI on the upper byte.  Do some
30; extra processing so that using FPRs is unequivocally better.
31declare fp128 @llvm.fabs.f128(fp128 %f)
32define void @f3(fp128 *%ptr, fp128 *%ptr2) {
33; CHECK-LABEL: f3:
34; CHECK: lnxbr
35; CHECK: dxbr
36; CHECK: br %r14
37  %orig = load fp128, fp128 *%ptr
38  %abs = call fp128 @llvm.fabs.f128(fp128 %orig)
39  %negabs = fneg fp128 %abs
40  %op2 = load fp128, fp128 *%ptr2
41  %res = fdiv fp128 %negabs, %op2
42  store fp128 %res, fp128 *%ptr
43  ret void
44}
45