| ; Test f128 comparisons on z14. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s |
| |
| ; There is no memory form of 128-bit comparison. |
| define i64 @f1(i64 %a, i64 %b, ptr %ptr1, ptr %ptr2) { |
| ; CHECK-LABEL: f1: |
| ; CHECK-DAG: vl [[REG1:%v[0-9]+]], 0(%r4) |
| ; CHECK-DAG: vl [[REG2:%v[0-9]+]], 0(%r5) |
| ; CHECK: wfcxb [[REG1]], [[REG2]] |
| ; CHECK-NEXT: locgrne %r2, %r3 |
| ; CHECK: br %r14 |
| %f1 = load fp128, ptr %ptr1 |
| %f2 = load fp128, ptr %ptr2 |
| %cond = fcmp oeq fp128 %f1, %f2 |
| %res = select i1 %cond, i64 %a, i64 %b |
| ret i64 %res |
| } |
| |
| ; Check comparison with zero -- it is not worthwhile to copy to |
| ; FP pairs just so we can use LTXBR, so simply load up a zero. |
| define i64 @f2(i64 %a, i64 %b, ptr %ptr) { |
| ; CHECK-LABEL: f2: |
| ; CHECK-DAG: vl [[REG1:%v[0-9]+]], 0(%r4) |
| ; CHECK-DAG: vzero [[REG2:%v[0-9]+]] |
| ; CHECK: wfcxb [[REG1]], [[REG2]] |
| ; CHECK-NEXT: locgrne %r2, %r3 |
| ; CHECK: br %r14 |
| %f = load fp128, ptr %ptr |
| %cond = fcmp oeq fp128 %f, 0xL00000000000000000000000000000000 |
| %res = select i1 %cond, i64 %a, i64 %b |
| ret i64 %res |
| } |