llvm/test/CodeGen/Mips/delay-slot-filler-bundled-insts-def-use.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
## Check that the delay-slot filler looks at the registers defined by BUNDLE instructions
# RUN: llc %s -run-pass=mips-delay-slot-filler -verify-machineinstrs -o - | FileCheck %s
--- |
  ; ModuleID = '/Users/alex/cheri/llvm-project/llvm/test/CodeGen/Mips/delay-test.ll'
  source_filename = "/Users/alex/cheri/llvm-project/llvm/test/CodeGen/Mips/delay-test.ll"
  target datalayout = "E-m:e-i8:8:32-i16:16:32-i64:64-n32:64-S128"
  target triple = "mips64-unknown-freebsd"

  ; Function Attrs: nounwind
  define i64 @test(i1 %cond) local_unnamed_addr #0 {
  entry:
    br i1 %cond, label %err, label %return

  err:                                              ; preds = %entry
    unreachable

  return:                                           ; preds = %entry
    ret i64 1
  }

  attributes #0 = { nounwind }

...
---
name:            test
alignment:       8
exposesReturnsTwice: false
legalized:       false
regBankSelected: false
selected:        false
failedISel:      false
tracksRegLiveness: true
hasWinCFI:       false
registers:       []
liveins:
  - { reg: '$a0_64', virtual-reg: '' }
frameInfo:
  isFrameAddressTaken: false
  isReturnAddressTaken: false
  hasStackMap:     false
  hasPatchPoint:   false
  stackSize:       0
  offsetAdjustment: 0
  maxAlignment:    1
  adjustsStack:    false
  hasCalls:        false
  stackProtector:  ''
  maxCallFrameSize: 0
  cvBytesOfCalleeSavedRegisters: 0
  hasOpaqueSPAdjustment: false
  hasVAStart:      false
  hasMustTailInVarArgFunc: false
  localFrameSize:  0
  savePoint:       ''
  restorePoint:    ''
fixedStack:      []
stack:           []
callSites:       []
constants:       []
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: test
  ; CHECK: bb.0.entry:
  ; CHECK:   successors: %bb.2(0x00000001), %bb.1(0x7fffffff)
  ; CHECK:   renamable $at = SLL renamable $a0, 0, implicit killed $a0_64
  ; CHECK:   renamable $at = ANDi killed renamable $at, 1
  ; CHECK:   $v0_64 = DADDiu $zero_64, 1
  ; CHECK:   $v0_64 = DADDiu $v0_64, 1
  ; CHECK:   BUNDLE implicit-def $v0_64 {
  ; CHECK:     $v0_64 = DADDiu $zero_64, 1
  ; CHECK:     $v0_64 = DADDiu $v0_64, 1
  ; CHECK:   }
  ; CHECK:   BNE killed renamable $at, $zero, %bb.2, implicit-def $at {
  ; CHECK:     $zero = SLL $zero, 0
  ; CHECK:   }
  ; CHECK: bb.1.return:
  ; CHECK:   PseudoReturn64 undef $ra_64, implicit killed $v0_64 {
  ; CHECK:     $zero = SLL $zero, 0
  ; CHECK:   }
  ; CHECK: bb.2.err:
  bb.0.entry:
    successors: %bb.1(0x00000001), %bb.2(0x7fffffff)
    liveins: $a0_64

    renamable $at = SLL renamable $a0, 0, implicit killed $a0_64
    renamable $at = ANDi killed renamable $at, 1
    ; Check that none of these instructions are hoisted after the BUNDLE to avoid
    ; incorrect values from being
    $v0_64 = DADDiu $zero_64, 1
    $v0_64 = DADDiu $v0_64, 1
    BUNDLE implicit-def $v0_64 {
      $v0_64 = DADDiu $zero_64, 1
      $v0_64 = DADDiu $v0_64, 1
    }
    BNE killed renamable $at, $zero, %bb.1, implicit-def $at

  bb.2.return:
    liveins: $v0_64
    PseudoReturn64 undef $ra_64, implicit killed $v0_64

  bb.1.err:

...