| |
| ; RUN: llc < %s | FileCheck %s -check-prefix=NOIPRA |
| ; RUN: llc -enable-ipra < %s | FileCheck %s |
| |
| |
| target triple = "x86_64-unknown-unknown" |
| define void @bar1() { |
| ret void |
| } |
| define preserve_allcc void @foo()#0 { |
| ; Due to preserve_allcc foo() will save some registers at start of foo() |
| ; prefix NOIPRA will verify that. |
| ; NOIPRA-LABEL: foo: |
| ; NOIPRA: pushq %r10 |
| ; NOIPRA-NEXT: pushq %r9 |
| ; NOIPRA-NEXT: pushq %r8 |
| ; NOIPRA: callq bar1 |
| ; When IPRA is present above registers will not be saved and that is verified |
| ; by prefix CHECK. |
| ; CHECK: foo: |
| ; CHECK-NOT: pushq %r10 |
| ; CHECK-NOT: pushq %r9 |
| ; CHECK-NOT: pushq %r8 |
| ; CHECK: callq bar1 |
| call void @bar1() |
| call void @bar2() |
| ret void |
| } |
| define void @bar2() { |
| ret void |
| } |
| attributes #0 = {nounwind} |
