| ; Test moves between FPRs on z13. |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s |
| |
| ; Test that we use LDR instead of LER. |
| define float @f1(float %a, float %b) { |
| ; CHECK-LABEL: f1: |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| ret float %b |
| } |
| |
| ; Test f64 moves. |
| define double @f2(double %a, double %b) { |
| ; CHECK-LABEL: f2: |
| ; CHECK: ldr %f0, %f2 |
| ; CHECK: br %r14 |
| ret double %b |
| } |
| |
| ; Test f128 moves. Since f128s are passed by reference, we need to force |
| ; a copy by other means. |
| define void @f3(fp128 *%x) { |
| ; CHECK-LABEL: f3: |
| ; CHECK: lxr |
| ; CHECK: axbr |
| ; CHECK: br %r14 |
| %val = load volatile fp128 , fp128 *%x |
| %sum = fadd fp128 %val, %val |
| store volatile fp128 %sum, fp128 *%x |
| store volatile fp128 %val, fp128 *%x |
| ret void |
| } |
