| ; RUN: llc < %s -march=avr | FileCheck %s |
| |
| define avr_intrcc void @interrupt_handler() { |
| ; CHECK-LABEL: interrupt_handler: |
| ; CHECK: sei |
| ; CHECK-NEXT: push r0 |
| ; CHECK-NEXT: push r1 |
| ; CHECK-NEXT: in r0, 63 |
| ; CHECK-NEXT: push r0 |
| ; CHECK: clr r0 |
| ; CHECK: pop r0 |
| ; CHECK-NEXT: out 63, r0 |
| ; CHECK-NEXT: pop r1 |
| ; CHECK-NEXT: pop r0 |
| ; CHECK-NEXT: reti |
| ret void |
| } |
| |
| define void @interrupt_handler_via_ir_attribute() #0 { |
| ; CHECK-LABEL: interrupt_handler_via_ir_attribute: |
| ; CHECK: sei |
| ; CHECK-NEXT: push r0 |
| ; CHECK-NEXT: push r1 |
| ; CHECK-NEXT: in r0, 63 |
| ; CHECK-NEXT: push r0 |
| ; CHECK: clr r0 |
| ; CHECK: pop r0 |
| ; CHECK-NEXT: out 63, r0 |
| ; CHECK-NEXT: pop r1 |
| ; CHECK-NEXT: pop r0 |
| ; CHECK-NEXT: reti |
| ret void |
| } |
| |
| define avr_signalcc void @signal_handler() { |
| ; CHECK-LABEL: signal_handler: |
| ; CHECK-NOT: sei |
| ; CHECK: push r0 |
| ; CHECK-NEXT: push r1 |
| ; CHECK-NEXT: in r0, 63 |
| ; CHECK-NEXT: push r0 |
| ; CHECK: clr r0 |
| ; CHECK: pop r0 |
| ; CHECK-NEXT: out 63, r0 |
| ; CHECK-NEXT: pop r1 |
| ; CHECK-NEXT: pop r0 |
| ; CHECK-NEXT: reti |
| ret void |
| } |
| |
| define void @signal_handler_via_attribute() #1 { |
| ; CHECK-LABEL: signal_handler_via_attribute: |
| ; CHECK-NOT: sei |
| ; CHECK: push r0 |
| ; CHECK-NEXT: push r1 |
| ; CHECK-NEXT: in r0, 63 |
| ; CHECK-NEXT: push r0 |
| ; CHECK: clr r0 |
| ; CHECK: pop r0 |
| ; CHECK-NEXT: out 63, r0 |
| ; CHECK-NEXT: pop r1 |
| ; CHECK-NEXT: pop r0 |
| ; CHECK-NEXT: reti |
| ret void |
| } |
| |
| define avr_intrcc void @interrupt_alloca() { |
| ; CHECK-LABEL: interrupt_alloca: |
| ; CHECK: sei |
| ; CHECK-NEXT: push r0 |
| ; CHECK-NEXT: push r1 |
| ; CHECK-NEXT: in r0, 63 |
| ; CHECK-NEXT: push r0 |
| ; CHECK: clr r0 |
| ; CHECK: push r28 |
| ; CHECK-NEXT: push r29 |
| ; CHECK-NEXT: in r28, 61 |
| ; CHECK-NEXT: in r29, 62 |
| ; CHECK-NEXT: sbiw r28, 1 |
| ; CHECK-NEXT: in r0, 63 |
| ; CHECK-NEXT: cli |
| ; CHECK-NEXT: out 62, r29 |
| ; CHECK-NEXT: out 63, r0 |
| ; CHECK-NEXT: out 61, r28 |
| ; CHECK: adiw r28, 1 |
| ; CHECK-NEXT: in r0, 63 |
| ; CHECK-NEXT: cli |
| ; CHECK-NEXT: out 62, r29 |
| ; CHECK-NEXT: out 63, r0 |
| ; CHECK-NEXT: out 61, r28 |
| ; CHECK-NEXT: pop r29 |
| ; CHECK-NEXT: pop r28 |
| ; CHECK: pop r0 |
| ; CHECK-NEXT: out 63, r0 |
| ; CHECK-NEXT: pop r1 |
| ; CHECK-NEXT: pop r0 |
| ; CHECK-NEXT: reti |
| alloca i8 |
| ret void |
| } |
| |
| attributes #0 = { "interrupt" } |
| attributes #1 = { "signal" } |
