llvm/test/CodeGen/RISCV/rda-stack.mir

# RUN: llc %s -mtriple=riscv64 -run-pass=reaching-defs-analysis -print-all-reaching-defs -o - 2>&1 | FileCheck %s

---
name:            test0
tracksRegLiveness: true
stack:
  - { id: 0, name: '', type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK-LABEL: RDA results for test0
  ; CHECK-NEXT: %stack.0:{ }
  ; CHECK-NEXT:0: $x10 = LD %stack.0, 0 :: (load (s64))
  ; CHECK-EMPTY:
  ; CHECK-NEXT: implicit $x10:{ 0 }
  ; CHECK-NEXT:1: PseudoRET implicit $x10

  bb.0.entry:
    $x10 = LD %stack.0, 0 :: (load (s64))
    PseudoRET implicit $x10

...
---
name:            test1
tracksRegLiveness: true
stack:
  - { id: 0, name: '', type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK-LABEL: RDA results for test1
  ; CHECK-NEXT: %stack.0:{ }
  ; CHECK-NEXT: 0: $x10 = LD %stack.0, 0 :: (load (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: %stack.1:{ }
  ; CHECK-NEXT: 1: $x11 = LD %stack.1, 0 :: (load (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: $x10:{ 0 }
  ; CHECK-NEXT: $x11:{ 1 }
  ; CHECK-NEXT: 2: $x10 = ADD $x10, $x11
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: implicit $x10:{ 2 }
  ; CHECK-NEXT: 3: PseudoRET implicit $x10

  bb.0.entry:
    $x10 = LD %stack.0, 0 :: (load (s64))
    $x11 = LD %stack.1, 0 :: (load (s64))
    $x10 = ADD $x10, $x11
    PseudoRET implicit $x10

...
---
name:            test2
tracksRegLiveness: true
stack:
  - { id: 0, name: '', type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK-LABEL: RDA results for test2
  ; CHECK-NEXT: %stack.0:{ }
  ; CHECK-NEXT: 0: $x10 = LD %stack.0, 0 :: (load (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: %stack.1:{ }
  ; CHECK-NEXT: 1: $x11 = LD %stack.1, 0 :: (load (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: $x10:{ 0 }
  ; CHECK-NEXT: $x11:{ 1 }
  ; CHECK-NEXT: 2: $x10 = ADD $x10, $x11
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: $x10:{ 2 }
  ; CHECK-NEXT: %stack.0:{ }
  ; CHECK-NEXT: 3: SD $x10, %stack.0, 0 :: (store (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: %stack.0:{ 3 }
  ; CHECK-NEXT: 4: $x10 = LD %stack.0, 0 :: (load (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: implicit $x10:{ 4 }
  ; CHECK-NEXT: 5: PseudoRET implicit $x10

  bb.0.entry:
    $x10 = LD %stack.0, 0 :: (load (s64))
    $x11 = LD %stack.1, 0 :: (load (s64))
    $x10 = ADD $x10, $x11
    SD $x10, %stack.0, 0 :: (store (s64))
    $x10 = LD %stack.0, 0 :: (load (s64))
    PseudoRET implicit $x10

...
---
name:            test3
tracksRegLiveness: true
stack:
  - { id: 0, name: '', type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK-LABEL: RDA results for test3
  ; CHECK-NEXT: $x10:{ }
  ; CHECK-NEXT: $x0:{ }
  ; CHECK-NEXT: 0: BEQ $x10, $x0, %bb.2
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: $x10:{ }
  ; CHECK-NEXT: 1: $x10 = ADDI $x10, 1
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: $x10:{ 1 }
  ; CHECK-NEXT: %stack.0:{ }
  ; CHECK-NEXT: 2: SD $x10, %stack.0, 0 :: (store (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: $x0:{ }
  ; CHECK-NEXT: $x0:{ }
  ; CHECK-NEXT: 3: BEQ $x0, $x0, %bb.3
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: $x10:{ 1 }
  ; CHECK-NEXT: 4: $x10 = ADDI $x10, 2
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: $x10:{ 4 }
  ; CHECK-NEXT: %stack.0:{ 2 }
  ; CHECK-NEXT: 5: SD $x10, %stack.0, 0 :: (store (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: %stack.0:{ 2 5 }
  ; CHECK-NEXT: 6: $x10 = LD %stack.0, 0 :: (load (s64))
  ; CHECK-EMPTY: 
  ; CHECK-NEXT: implicit $x10:{ 6 }
  ; CHECK-NEXT: 7: PseudoRET implicit $x10

  bb.0.entry:
    liveins: $x10
    BEQ $x10, $x0, %bb.2

  bb.1:
    liveins: $x10
    $x10 = ADDI $x10, 1
    SD $x10, %stack.0, 0 :: (store (s64))
    BEQ $x0, $x0, %bb.3

  bb.2:
    liveins: $x10
    $x10 = ADDI $x10, 2
    SD $x10, %stack.0, 0 :: (store (s64))

  bb.3:
    $x10 = LD %stack.0, 0 :: (load (s64))
    PseudoRET implicit $x10
...
---
name:            test4
tracksRegLiveness: true
fixedStack:
  - { id: 0, type: default, offset: 0, size: 4, alignment: 16,
      isImmutable: true, isAliased: false }
stack:
  - { id: 0, name: '', type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
  - { id: 1, name: '', type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK: RDA results for test4
  ; CHECK-NEXT: $x10:{ }
  ; CHECK-NEXT: %stack.0:{ }
  ; CHECK-NEXT: 0: SD $x10, %stack.0, 0 :: (store (s64))
  ; CHECK-EMPTY:
  ; CHECK-NEXT: $x11:{ }
  ; CHECK-NEXT: %stack.0:{ 0 }
  ; CHECK-NEXT: 1: SD $x11, %stack.0, 0 :: (store (s64))
  ; CHECK-EMPTY:
  ; CHECK-NEXT: $x10:{ }
  ; CHECK-NEXT: %stack.1:{ }
  ; CHECK-NEXT: 2: SD $x10, %stack.1, 0 :: (store (s64))
  ; CHECK-EMPTY:
  ; CHECK-NEXT: $x11:{ }
  ; CHECK-NEXT: %stack.1:{ 2 }
  ; CHECK-NEXT: 3: SD $x11, %stack.1, 0 :: (store (s64))
  ; CHECK-EMPTY:
  ; CHECK-NEXT: 4: PseudoRET
  bb.0.entry:
    liveins: $x10, $x11
    SD $x10, %stack.0, 0 :: (store (s64))
    SD $x11, %stack.0, 0 :: (store (s64))
    SD $x10, %stack.1, 0 :: (store (s64))
    SD $x11, %stack.1, 0 :: (store (s64))
    PseudoRET
...