llvm/test/CodeGen/X86/machinesink-debug-inv-0.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=x86_64 -machine-sink-load-instrs-threshold=2 -run-pass=machine-sink %s -o - | FileCheck %s
# RUN: llc -mtriple=x86_64 -machine-sink-load-instrs-threshold=2 -run-pass=mir-debugify,machine-sink,mir-strip-debug %s -o - | FileCheck %s

# RUN: llc -mtriple=x86_64 -machine-sink-load-instrs-threshold=2 -passes=machine-sink %s -o - | FileCheck %s
# TODO: add test with mir-debugify once it is ported

# Verify that machine-sink pass is debug invariant wrt to given input. Since
# the pass examines MemOperands the IR is required for the original bug to
# trigger.

--- |
  @e = global i32 0, align 1
  @d = global i32 0, align 1
  @f = global i32 0, align 1
  @g = global i32 0, align 1

  define i32 @l() {
  entry:
    br label %for.body

  for.body:                                         ; preds = %h.exit, %entry
    %cmp = phi i1 [ true, %entry ], [ false, %h.exit ]
    %0 = load i32, ptr @d, align 1
    %tobool61.not.i = icmp eq i32 %0, 0
    %e.promoted44.i = load i32, ptr @e, align 1
    br i1 %tobool61.not.i, label %h.exit, label %for.cond13.preheader.preheader.i

  for.cond13.preheader.preheader.i:                 ; preds = %for.body
    %1 = load i32, ptr @f, align 1
    store i32 %1, ptr @g, align 1
    br label %h.exit

  h.exit:                                           ; preds = %for.cond13.preheader.preheader.i, %for.body
    %.us-phi50.i = or i32 %e.promoted44.i, 4
    store i32 %.us-phi50.i, ptr @e, align 1
    br i1 %cmp, label %for.body, label %for.end

  for.end:                                          ; preds = %h.exit
    ret i32 undef
  }
...
---
name:            l
alignment:       16
tracksRegLiveness: true
registers:
  - { id: 0, class: gr8 }
  - { id: 1, class: gr32 }
  - { id: 2, class: gr8 }
  - { id: 3, class: gr64 }
  - { id: 4, class: gr64 }
  - { id: 5, class: gr64 }
  - { id: 6, class: gr32 }
  - { id: 7, class: gr64 }
  - { id: 8, class: gr8 }
  - { id: 9, class: gr32 }
  - { id: 10, class: gr64 }
  - { id: 11, class: gr32 }
  - { id: 12, class: gr32 }
frameInfo:
  maxAlignment:    1
machineFunctionInfo: {}
body:             |
  ; CHECK-LABEL: name: l
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[MOV8ri:%[0-9]+]]:gr8 = MOV8ri 1
  ; CHECK-NEXT:   [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @d, $noreg :: (load (s64) from got)
  ; CHECK-NEXT:   [[MOV64rm1:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @e, $noreg :: (load (s64) from got)
  ; CHECK-NEXT:   [[MOV64rm2:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @f, $noreg :: (load (s64) from got)
  ; CHECK-NEXT:   [[MOV64rm3:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @g, $noreg :: (load (s64) from got)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.for.body:
  ; CHECK-NEXT:   successors: %bb.3(0x30000000), %bb.2(0x50000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gr8 = PHI [[MOV8ri]], %bb.0, %8, %bb.3
  ; CHECK-NEXT:   CMP32mi [[MOV64rm]], 1, $noreg, 0, $noreg, 0, implicit-def $eflags :: (dereferenceable load (s32) from @d, align 1)
  ; CHECK-NEXT:   JCC_1 %bb.3, 4, implicit $eflags
  ; CHECK-NEXT:   JMP_1 %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.for.cond13.preheader.preheader.i:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm [[MOV64rm2]], 1, $noreg, 0, $noreg :: (dereferenceable load (s32) from @f, align 1)
  ; CHECK-NEXT:   MOV32mr [[MOV64rm3]], 1, $noreg, 0, $noreg, killed [[MOV32rm]] :: (store (s32) into @g, align 1)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3.h.exit:
  ; CHECK-NEXT:   successors: %bb.1(0x7c000000), %bb.4(0x04000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[MOV32rm1:%[0-9]+]]:gr32 = MOV32rm [[MOV64rm1]], 1, $noreg, 0, $noreg :: (dereferenceable load (s32) from @e, align 1)
  ; CHECK-NEXT:   [[OR32ri8_:%[0-9]+]]:gr32 = OR32ri8 [[MOV32rm1]], 4, implicit-def dead $eflags
  ; CHECK-NEXT:   MOV32mr [[MOV64rm1]], 1, $noreg, 0, $noreg, killed [[OR32ri8_]] :: (store (s32) into @e, align 1)
  ; CHECK-NEXT:   [[MOV32r0_:%[0-9]+]]:gr32 = MOV32r0 implicit-def dead $eflags
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gr8 = COPY [[MOV32r0_]].sub_8bit
  ; CHECK-NEXT:   TEST8ri [[PHI]], 1, implicit-def $eflags
  ; CHECK-NEXT:   JCC_1 %bb.1, 5, implicit $eflags
  ; CHECK-NEXT:   JMP_1 %bb.4
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4.for.end:
  ; CHECK-NEXT:   [[DEF:%[0-9]+]]:gr32 = IMPLICIT_DEF
  ; CHECK-NEXT:   $eax = COPY [[DEF]]
  ; CHECK-NEXT:   RET 0, $eax
  bb.0.entry:
    %2:gr8 = MOV8ri 1
    %3:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @d, $noreg :: (load (s64) from got)
    %4:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @e, $noreg :: (load (s64) from got)
    %5:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @f, $noreg :: (load (s64) from got)
    %7:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @g, $noreg :: (load (s64) from got)

  bb.1.for.body:
    successors: %bb.3(0x30000000), %bb.2(0x50000000)

    %0:gr8 = PHI %2, %bb.0, %8, %bb.3
    CMP32mi %3, 1, $noreg, 0, $noreg, 0, implicit-def $eflags :: (dereferenceable load (s32) from @d, align 1)
    %1:gr32 = MOV32rm %4, 1, $noreg, 0, $noreg :: (dereferenceable load (s32) from @e, align 1)
    JCC_1 %bb.3, 4, implicit $eflags
    JMP_1 %bb.2

  bb.2.for.cond13.preheader.preheader.i:
    %6:gr32 = MOV32rm %5, 1, $noreg, 0, $noreg :: (dereferenceable load (s32) from @f, align 1)
    MOV32mr %7, 1, $noreg, 0, $noreg, killed %6 :: (store (s32) into @g, align 1)

  bb.3.h.exit:
    successors: %bb.1(0x7c000000), %bb.4(0x04000000)

    %9:gr32 = OR32ri8 %1, 4, implicit-def dead $eflags
    MOV32mr %4, 1, $noreg, 0, $noreg, killed %9 :: (store (s32) into @e, align 1)
    %11:gr32 = MOV32r0 implicit-def dead $eflags
    %8:gr8 = COPY %11.sub_8bit
    TEST8ri %0, 1, implicit-def $eflags
    JCC_1 %bb.1, 5, implicit $eflags
    JMP_1 %bb.4

  bb.4.for.end:
    %12:gr32 = IMPLICIT_DEF
    $eax = COPY %12
    RET 0, $eax
...