llvm/test/CodeGen/MIR/Generic/frame-info.mir

# RUN: llc -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses machine frame info properties
# correctly.

--- |

  define i32 @test(i32 %a) {
  entry:
    %b = alloca i32
    store i32 %a, ptr %b
    %c = load i32, ptr %b
    ret i32 %c
  }

  define i32 @test2(i32 %a) {
  entry:
    %b = alloca i32
    store i32 %a, ptr %b
    %c = load i32, ptr %b
    ret i32 %c
  }

  define void @test_framePointerPolicy_none() {
    ret void
  }

  define void @test_framePointerPolicy_non_leaf() {
    ret void
  }

  define void @test_framePointerPolicy_all() {
    ret void
  }

  define void @test_framePointerPolicy_reserved() {
    ret void
  }

  define void @test_framePointerPolicy_non_leaf_no_reserve() {
    ret void
  }

...
---
name:            test
tracksRegLiveness: true

# CHECK: frameInfo:
# CHECK-NEXT: isFrameAddressTaken: false
# CHECK-NEXT: isReturnAddressTaken: false
# CHECK-NEXT: hasStackMap: false
# CHECK-NEXT: hasPatchPoint: false
# CHECK-NEXT: stackSize: 0
# CHECK-NEXT: offsetAdjustment: 0
# Note: max alignment can be target specific when printed.
# CHECK-NEXT: maxAlignment:
# CHECK-NEXT: adjustsStack: false
# CHECK-NEXT: hasCalls: false
# CHECK-NEXT: framePointerPolicy: none
# CHECK-NEXT: stackProtector:  ''
# CHECK-NEXT: functionContext:  ''
# CHECK-NEXT: maxCallFrameSize:
# CHECK-NEXT: cvBytesOfCalleeSavedRegisters: 0
# CHECK-NEXT: hasOpaqueSPAdjustment: false
# CHECK-NEXT: hasVAStart: false
# CHECK-NEXT: hasMustTailInVarArgFunc: false
# CHECK-NEXT: hasTailCall: false
# CHECK-NEXT: isCalleeSavedInfoValid: false
# CHECK-NEXT: localFrameSize: 0
# CHECK: body
frameInfo:
  maxAlignment:    4
body: |
  bb.0.entry:
...
---
name:            test2
tracksRegLiveness: true
stack:
  - { id: 0, offset: -40, size: 8, alignment: 8 }

# CHECK: test2
# CHECK: frameInfo:
# CHECK-NEXT: isFrameAddressTaken: true
# CHECK-NEXT: isReturnAddressTaken: true
# CHECK-NEXT: hasStackMap: true
# CHECK-NEXT: hasPatchPoint: true
# CHECK-NEXT: stackSize: 4
# CHECK-NEXT: offsetAdjustment: 4
# Note: max alignment can be target specific when printed.
# CHECK-NEXT: maxAlignment:
# CHECK-NEXT: adjustsStack: true
# CHECK-NEXT: hasCalls: true
# CHECK-NEXT: framePointerPolicy: none
# CHECK-NEXT: stackProtector:  ''
# CHECK-NEXT: functionContext:  '%stack.0'
# CHECK-NEXT: maxCallFrameSize: 4
# CHECK-NEXT: cvBytesOfCalleeSavedRegisters: 8
# CHECK-NEXT: hasOpaqueSPAdjustment: true
# CHECK-NEXT: hasVAStart: true
# CHECK-NEXT: hasMustTailInVarArgFunc: true
# CHECK-NEXT: hasTailCall: true
# CHECK: body
frameInfo:
  isFrameAddressTaken: true
  isReturnAddressTaken: true
  hasStackMap:     true
  hasPatchPoint:   true
  stackSize:       4
  offsetAdjustment: 4
  maxAlignment:    4
  adjustsStack:    true
  hasCalls:        true
  functionContext: '%stack.0'
  maxCallFrameSize: 4
  cvBytesOfCalleeSavedRegisters: 8
  hasOpaqueSPAdjustment: true
  hasVAStart:      true
  hasTailCall:     true
  hasMustTailInVarArgFunc: true
  localFrameSize: 256
body: |
  bb.0.entry:
...
---
name:            test_framePointerPolicy_none

# CHECK: test_framePointerPolicy_none
# CHECK: framePointerPolicy: none
frameInfo:
  framePointerPolicy: none
...
---
name:            test_framePointerPolicy_non_leaf

# CHECK: test_framePointerPolicy_non_leaf
# CHECK: framePointerPolicy: non-leaf
frameInfo:
  framePointerPolicy: non-leaf
...
---
name:            test_framePointerPolicy_all

# CHECK: test_framePointerPolicy_all
# CHECK: framePointerPolicy: all
frameInfo:
  framePointerPolicy: all
...
---
name:            test_framePointerPolicy_reserved

# CHECK: test_framePointerPolicy_reserved
# CHECK: framePointerPolicy: reserved
frameInfo:
  framePointerPolicy: reserved
...
---
name:            test_framePointerPolicy_non_leaf_no_reserve

# CHECK: test_framePointerPolicy_non_leaf_no_reserve
# CHECK: framePointerPolicy: non-leaf-no-reserve
frameInfo:
  framePointerPolicy: non-leaf-no-reserve
...