1; Test f128 signaling comparisons on z14.
2;
3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
4
5; There is no memory form of 128-bit comparison.
6define i64 @f1(i64 %a, i64 %b, fp128 *%ptr1, fp128 *%ptr2) #0 {
7; CHECK-LABEL: f1:
8; CHECK-DAG: vl [[REG1:%v[0-9]+]], 0(%r4)
9; CHECK-DAG: vl [[REG2:%v[0-9]+]], 0(%r5)
10; CHECK: wfkxb [[REG1]], [[REG2]]
11; CHECK-NEXT: locgrne %r2, %r3
12; CHECK: br %r14
13  %f1 = load fp128, fp128 *%ptr1
14  %f2 = load fp128, fp128 *%ptr2
15  %cond = call i1 @llvm.experimental.constrained.fcmps.f128(
16                                               fp128 %f1, fp128 %f2,
17                                               metadata !"oeq",
18                                               metadata !"fpexcept.strict") #0
19  %res = select i1 %cond, i64 %a, i64 %b
20  ret i64 %res
21}
22
23; Check comparison with zero -- it is not worthwhile to copy to
24; FP pairs just so we can use LTXBR, so simply load up a zero.
25define i64 @f2(i64 %a, i64 %b, fp128 *%ptr) #0 {
26; CHECK-LABEL: f2:
27; CHECK-DAG: vl [[REG1:%v[0-9]+]], 0(%r4)
28; CHECK-DAG: vzero [[REG2:%v[0-9]+]]
29; CHECK: wfkxb [[REG1]], [[REG2]]
30; CHECK-NEXT: locgrne %r2, %r3
31; CHECK: br %r14
32  %f = load fp128, fp128 *%ptr
33  %cond = call i1 @llvm.experimental.constrained.fcmps.f128(
34                                               fp128 %f, fp128 0xL00000000000000000000000000000000,
35                                               metadata !"oeq",
36                                               metadata !"fpexcept.strict") #0
37  %res = select i1 %cond, i64 %a, i64 %b
38  ret i64 %res
39}
40
41attributes #0 = { strictfp }
42
43declare i1 @llvm.experimental.constrained.fcmps.f128(fp128, fp128, metadata, metadata)
44
45