| ; Test moves between FPRs. | |
| ; | |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s | |
| ; Test f32 moves. | |
| define float @f1(float %a, float %b) { | |
| ; CHECK-LABEL: f1: | |
| ; CHECK: ler %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(ptr %x) { | |
| ; CHECK-LABEL: f3: | |
| ; CHECK: lxr | |
| ; CHECK: axbr | |
| ; CHECK: br %r14 | |
| %val = load volatile fp128, ptr %x | |
| %sum = fadd fp128 %val, %val | |
| store volatile fp128 %sum, ptr %x | |
| store volatile fp128 %val, ptr %x | |
| ret void | |
| } |