llvm/test/CodeGen/X86/post-ra-pseudos.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6
# RUN: llc -mtriple x86_64-unknown-linux-gnu -passes=post-ra-pseudos -o - %s | FileCheck %s

# Check that we do post-RA pseudoinstruction expansion, even with optnone.

--- |
  declare void @foo(i32)

  ; Function Attrs: noinline optnone
  define i32 @test() #0 {
    call void @foo(i32 1)
    ret i32 0
  }

  attributes #0 = { noinline optnone }
...
---
name:            test
body:             |
  bb.0 (%ir-block.0):
    ; CHECK-LABEL: name: test
    ; CHECK: frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
    ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 16
    ; CHECK-NEXT: renamable $edi = MOV32ri 1
    ; CHECK-NEXT: CALL64pcrel32 target-flags(x86-plt) @foo, csr_64, implicit $rsp, implicit $ssp, implicit $edi
    ; CHECK-NEXT: renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
    ; CHECK-NEXT: $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp
    ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 8
    ; CHECK-NEXT: RET64 implicit $eax
    frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
    frame-setup CFI_INSTRUCTION def_cfa_offset 16
    renamable $edi = MOV32ri 1
    CALL64pcrel32 target-flags(x86-plt) @foo, csr_64, implicit $rsp, implicit $ssp, implicit $edi
    renamable $eax = MOV32r0 implicit-def dead $eflags
    $rcx = frame-destroy POP64r implicit-def $rsp, implicit $rsp
    frame-destroy CFI_INSTRUCTION def_cfa_offset 8
    RET64 implicit $eax
...