1; Test 128-bit floating-point strict comparison.  The tests assume a z10
2; implementation of select, using conditional branches rather than LOCGR.
3;
4; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
5
6; There is no memory form of 128-bit comparison.
7define i64 @f1(i64 %a, i64 %b, fp128 *%ptr, float %f2) #0 {
8; CHECK-LABEL: f1:
9; CHECK-DAG: lxebr %f0, %f0
10; CHECK-DAG: ld %f1, 0(%r4)
11; CHECK-DAG: ld %f3, 8(%r4)
12; CHECK: cxbr %f1, %f0
13; CHECK-NEXT: ber %r14
14; CHECK: lgr %r2, %r3
15; CHECK: br %r14
16  %f2x = fpext float %f2 to fp128
17  %f1 = load fp128, fp128 *%ptr
18  %cond = call i1 @llvm.experimental.constrained.fcmp.f128(
19                                               fp128 %f1, fp128 %f2x,
20                                               metadata !"oeq",
21                                               metadata !"fpexcept.strict") #0
22  %res = select i1 %cond, i64 %a, i64 %b
23  ret i64 %res
24}
25
26; Check comparison with zero.
27define i64 @f2(i64 %a, i64 %b, fp128 *%ptr) #0 {
28; CHECK-LABEL: f2:
29; CHECK: ld %f0, 0(%r4)
30; CHECK: ld %f2, 8(%r4)
31; CHECK: ltxbr %f0, %f0
32; CHECK-NEXT: ber %r14
33; CHECK: lgr %r2, %r3
34; CHECK: br %r14
35  %f = load fp128, fp128 *%ptr
36  %cond = call i1 @llvm.experimental.constrained.fcmp.f128(
37                                               fp128 %f, fp128 0xL00000000000000000000000000000000,
38                                               metadata !"oeq",
39                                               metadata !"fpexcept.strict") #0
40  %res = select i1 %cond, i64 %a, i64 %b
41  ret i64 %res
42}
43
44attributes #0 = { strictfp }
45
46declare i1 @llvm.experimental.constrained.fcmp.f128(fp128, fp128, metadata, metadata)
47
48