| ; Test calling functions with multiple return values (LLVM ABI extension) |
| ; |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s |
| |
| ; Up to eight vector return values fit into VRs. |
| declare { <2 x double>, <2 x double>, <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, <2 x double>, <2 x double> } @bar1() |
| |
| define <2 x double> @f1() { |
| ; CHECK-LABEL: f1: |
| ; CHECK: brasl %r14, bar1 |
| ; CHECK: vlr %v24, %v31 |
| ; CHECK: br %r14 |
| %mret = call { <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double>, <2 x double> } @bar1() |
| %ret = extractvalue { <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double>, <2 x double> } %mret, 7 |
| ret <2 x double> %ret |
| } |
| |
| ; More than eight vector return values use sret. |
| declare { <2 x double>, <2 x double>, <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, <2 x double>, <2 x double>, |
| <2 x double> } @bar2() |
| |
| define <2 x double> @f2() { |
| ; CHECK-LABEL: f2: |
| ; CHECK: la %r2, 160(%r15) |
| ; CHECK: brasl %r14, bar2 |
| ; CHECK: vl %v24, 288(%r15) |
| ; CHECK: br %r14 |
| %mret = call { <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double> } @bar2() |
| %ret = extractvalue { <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double>, <2 x double>, |
| <2 x double> } %mret, 8 |
| ret <2 x double> %ret |
| } |