xref: /llvm-project/llvm/test/CodeGen/AMDGPU/call-alias-register-usage0.ll (revision 82944595fa5509fdbd574318e9041f2edab32e5f)
1; RUN: llc -O0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck %s
2
3; CallGraphAnalysis, which CodeGenSCC order depends on, does not look
4; through aliases. If GlobalOpt is never run, we do not see direct
5; calls,
6
7@alias0 = hidden alias void (), ptr @aliasee_default_vgpr64_sgpr102
8
9; CHECK-LABEL: {{^}}kernel0:
10; CHECK:      .set kernel0.num_vgpr, max(41, .Laliasee_default_vgpr64_sgpr102.num_vgpr)
11; CHECK-NEXT: .set kernel0.num_agpr, max(0, .Laliasee_default_vgpr64_sgpr102.num_agpr)
12; CHECK-NEXT: .set kernel0.numbered_sgpr, max(33, .Laliasee_default_vgpr64_sgpr102.numbered_sgpr)
13define amdgpu_kernel void @kernel0() #0 {
14bb:
15  call void @alias0() #2
16  ret void
17}
18
19; CHECK:      .set .Laliasee_default_vgpr64_sgpr102.num_vgpr, 53
20; CHECK-NEXT: .set .Laliasee_default_vgpr64_sgpr102.num_agpr, 0
21; CHECK-NEXT: .set .Laliasee_default_vgpr64_sgpr102.numbered_sgpr, 32
22define internal void @aliasee_default_vgpr64_sgpr102() #1 {
23bb:
24  call void asm sideeffect "; clobber v52 ", "~{v52}"()
25  ret void
26}
27
28attributes #0 = { noinline norecurse nounwind optnone }
29attributes #1 = { noinline norecurse nounwind readnone willreturn }
30attributes #2 = { nounwind readnone willreturn }
31
32!llvm.module.flags = !{!0}
33!0 = !{i32 1, !"amdhsa_code_object_version", i32 500}
34