1; Test negated floating-point absolute.
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
4
5; Test f32.
6declare float @llvm.fabs.f32(float %f)
7define float @f1(float %f) {
8; CHECK-LABEL: f1:
9; CHECK: lnebr %f0, %f0
10; CHECK: br %r14
11  %abs = call float @llvm.fabs.f32(float %f)
12  %res = fsub float -0.0, %abs
13  ret float %res
14}
15
16; Test f64.
17declare double @llvm.fabs.f64(double %f)
18define double @f2(double %f) {
19; CHECK-LABEL: f2:
20; CHECK: lndbr %f0, %f0
21; CHECK: br %r14
22  %abs = call double @llvm.fabs.f64(double %f)
23  %res = fsub double -0.0, %abs
24  ret double %res
25}
26
27; Test f128.  With the loads and stores, a pure negative-absolute would
28; probably be better implemented using an OI on the upper byte.  Do some
29; extra processing so that using FPRs is unequivocally better.
30declare fp128 @llvm.fabs.f128(fp128 %f)
31define void @f3(fp128 *%ptr, fp128 *%ptr2) {
32; CHECK-LABEL: f3:
33; CHECK: lnxbr
34; CHECK: dxbr
35; CHECK: br %r14
36  %orig = load fp128 *%ptr
37  %abs = call fp128 @llvm.fabs.f128(fp128 %orig)
38  %negabs = fsub fp128 0xL00000000000000008000000000000000, %abs
39  %op2 = load fp128 *%ptr2
40  %res = fdiv fp128 %negabs, %op2
41  store fp128 %res, fp128 *%ptr
42  ret void
43}
44