1 ; Test 128-bit floating-point comparison. The tests assume a z10 implementation
2 ; of select, using conditional branches rather than LOCGR.
4 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
6 ; There is no memory form of 128-bit comparison.
7 define i64 @f1(i64 %a, i64 %b, fp128 *%ptr, float %f2) {
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
16 %f2x = fpext float %f2 to fp128
17 %f1 = load fp128, fp128 *%ptr
18 %cond = fcmp oeq fp128 %f1, %f2x
19 %res = select i1 %cond, i64 %a, i64 %b
23 ; Check comparison with zero.
24 define i64 @f2(i64 %a, i64 %b, fp128 *%ptr) {
26 ; CHECK: ld %f0, 0(%r4)
27 ; CHECK: ld %f2, 8(%r4)
28 ; CHECK: ltxbr %f0, %f0
29 ; CHECK-NEXT: ber %r14
32 %f = load fp128, fp128 *%ptr
33 %cond = fcmp oeq fp128 %f, 0xL00000000000000000000000000000000
34 %res = select i1 %cond, i64 %a, i64 %b