| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mattr=avr6,sram -mtriple=avr < %s | FileCheck %s --check-prefix=AVR |
| ; RUN: llc -mcpu=attiny10 -mtriple=avr < %s | FileCheck %s --check-prefix=TINY |
| |
| ;TODO: test returning byval structs |
| ; TODO: test naked functions |
| |
| define void @return_void() { |
| ; AVR-LABEL: return_void: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return_void: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: ret |
| ret void |
| } |
| |
| define i8 @return8_imm() { |
| ; AVR-LABEL: return8_imm: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ldi r24, 5 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return8_imm: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: ldi r24, 5 |
| ; TINY-NEXT: ret |
| ret i8 5 |
| } |
| |
| define i8 @return8_arg(i8 %x) { |
| ; AVR-LABEL: return8_arg: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return8_arg: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: ret |
| ret i8 %x |
| } |
| |
| define i8 @return8_arg2(i8 %x, i8 %y, i8 %z) { |
| ; AVR-LABEL: return8_arg2: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: mov r24, r20 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return8_arg2: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: mov r24, r20 |
| ; TINY-NEXT: ret |
| ret i8 %z |
| } |
| |
| define i16 @return16_imm() { |
| ; AVR-LABEL: return16_imm: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ldi r24, 57 |
| ; AVR-NEXT: ldi r25, 48 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return16_imm: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: ldi r24, 57 |
| ; TINY-NEXT: ldi r25, 48 |
| ; TINY-NEXT: ret |
| ret i16 12345 |
| } |
| |
| define i16 @return16_arg(i16 %x) { |
| ; AVR-LABEL: return16_arg: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return16_arg: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: ret |
| ret i16 %x |
| } |
| |
| define i16 @return16_arg2(i16 %x, i16 %y, i16 %z) { |
| ; AVR-LABEL: return16_arg2: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: movw r24, r20 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return16_arg2: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: mov r24, r20 |
| ; TINY-NEXT: mov r25, r21 |
| ; TINY-NEXT: ret |
| ret i16 %z |
| } |
| |
| define i32 @return32_imm() { |
| ; AVR-LABEL: return32_imm: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ldi r22, 21 |
| ; AVR-NEXT: ldi r23, 205 |
| ; AVR-NEXT: ldi r24, 91 |
| ; AVR-NEXT: ldi r25, 7 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return32_imm: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: ldi r22, 21 |
| ; TINY-NEXT: ldi r23, 205 |
| ; TINY-NEXT: ldi r24, 91 |
| ; TINY-NEXT: ldi r25, 7 |
| ; TINY-NEXT: ret |
| ret i32 123456789 |
| } |
| |
| define i32 @return32_arg(i32 %x) { |
| ; AVR-LABEL: return32_arg: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return32_arg: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: ret |
| ret i32 %x |
| } |
| |
| define i32 @return32_arg2(i32 %x, i32 %y, i32 %z) { |
| ; AVR-LABEL: return32_arg2: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: movw r22, r14 |
| ; AVR-NEXT: movw r24, r16 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return32_arg2: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: push r28 |
| ; TINY-NEXT: push r29 |
| ; TINY-NEXT: in r28, 61 |
| ; TINY-NEXT: in r29, 62 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 247 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r22, Y+ |
| ; TINY-NEXT: ld r23, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 9 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 245 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r24, Y+ |
| ; TINY-NEXT: ld r25, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 11 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: pop r29 |
| ; TINY-NEXT: pop r28 |
| ; TINY-NEXT: ret |
| ret i32 %z |
| } |
| |
| define i64 @return64_imm() { |
| ; AVR-LABEL: return64_imm: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ldi r18, 204 |
| ; AVR-NEXT: ldi r19, 204 |
| ; AVR-NEXT: ldi r20, 104 |
| ; AVR-NEXT: ldi r21, 37 |
| ; AVR-NEXT: ldi r22, 25 |
| ; AVR-NEXT: ldi r23, 22 |
| ; AVR-NEXT: ldi r24, 236 |
| ; AVR-NEXT: ldi r25, 190 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return64_imm: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: ldi r20, 236 |
| ; TINY-NEXT: ldi r21, 190 |
| ; TINY-NEXT: mov r30, r24 |
| ; TINY-NEXT: mov r31, r25 |
| ; TINY-NEXT: subi r30, 250 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r20 |
| ; TINY-NEXT: st Z+, r21 |
| ; TINY-NEXT: subi r30, 8 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: ldi r24, 25 |
| ; TINY-NEXT: ldi r25, 22 |
| ; TINY-NEXT: subi r30, 252 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: subi r30, 6 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: ldi r24, 104 |
| ; TINY-NEXT: ldi r25, 37 |
| ; TINY-NEXT: subi r30, 254 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: subi r30, 4 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: ldi r24, 204 |
| ; TINY-NEXT: ldi r25, 204 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: ret |
| ret i64 13757395258967641292 |
| } |
| |
| define i64 @return64_arg(i64 %x) { |
| ; AVR-LABEL: return64_arg: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return64_arg: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: push r28 |
| ; TINY-NEXT: push r29 |
| ; TINY-NEXT: in r28, 61 |
| ; TINY-NEXT: in r29, 62 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 245 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r20, Y+ |
| ; TINY-NEXT: ld r21, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 11 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: mov r30, r24 |
| ; TINY-NEXT: mov r31, r25 |
| ; TINY-NEXT: subi r30, 250 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r20 |
| ; TINY-NEXT: st Z+, r21 |
| ; TINY-NEXT: subi r30, 8 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 247 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r24, Y+ |
| ; TINY-NEXT: ld r25, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 9 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: subi r30, 252 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: subi r30, 6 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 249 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r24, Y+ |
| ; TINY-NEXT: ld r25, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 7 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: subi r30, 254 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: subi r30, 4 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 251 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r24, Y+ |
| ; TINY-NEXT: ld r25, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 5 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: pop r29 |
| ; TINY-NEXT: pop r28 |
| ; TINY-NEXT: ret |
| ret i64 %x |
| } |
| |
| define i64 @return64_arg2(i64 %x, i64 %y, i64 %z) { |
| ; AVR-LABEL: return64_arg2: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: push r28 |
| ; AVR-NEXT: push r29 |
| ; AVR-NEXT: in r28, 61 |
| ; AVR-NEXT: in r29, 62 |
| ; AVR-NEXT: ldd r18, Y+5 |
| ; AVR-NEXT: ldd r19, Y+6 |
| ; AVR-NEXT: ldd r20, Y+7 |
| ; AVR-NEXT: ldd r21, Y+8 |
| ; AVR-NEXT: ldd r22, Y+9 |
| ; AVR-NEXT: ldd r23, Y+10 |
| ; AVR-NEXT: ldd r24, Y+11 |
| ; AVR-NEXT: ldd r25, Y+12 |
| ; AVR-NEXT: pop r29 |
| ; AVR-NEXT: pop r28 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return64_arg2: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: push r28 |
| ; TINY-NEXT: push r29 |
| ; TINY-NEXT: in r28, 61 |
| ; TINY-NEXT: in r29, 62 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 229 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r20, Y+ |
| ; TINY-NEXT: ld r21, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 27 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: mov r30, r24 |
| ; TINY-NEXT: mov r31, r25 |
| ; TINY-NEXT: subi r30, 250 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r20 |
| ; TINY-NEXT: st Z+, r21 |
| ; TINY-NEXT: subi r30, 8 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 231 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r24, Y+ |
| ; TINY-NEXT: ld r25, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 25 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: subi r30, 252 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: subi r30, 6 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 233 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r24, Y+ |
| ; TINY-NEXT: ld r25, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 23 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: subi r30, 254 |
| ; TINY-NEXT: sbci r31, 255 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: subi r30, 4 |
| ; TINY-NEXT: sbci r31, 0 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 235 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r24, Y+ |
| ; TINY-NEXT: ld r25, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 21 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: st Z+, r24 |
| ; TINY-NEXT: st Z+, r25 |
| ; TINY-NEXT: pop r29 |
| ; TINY-NEXT: pop r28 |
| ; TINY-NEXT: ret |
| ret i64 %z |
| } |
| |
| define i32 @return64_trunc(i32 %a, i32 %b, i32 %c, i64 %d) { |
| ; AVR-LABEL: return64_trunc: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: push r28 |
| ; AVR-NEXT: push r29 |
| ; AVR-NEXT: in r28, 61 |
| ; AVR-NEXT: in r29, 62 |
| ; AVR-NEXT: ldd r22, Y+5 |
| ; AVR-NEXT: ldd r23, Y+6 |
| ; AVR-NEXT: ldd r24, Y+7 |
| ; AVR-NEXT: ldd r25, Y+8 |
| ; AVR-NEXT: pop r29 |
| ; AVR-NEXT: pop r28 |
| ; AVR-NEXT: ret |
| ; |
| ; TINY-LABEL: return64_trunc: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: push r28 |
| ; TINY-NEXT: push r29 |
| ; TINY-NEXT: in r28, 61 |
| ; TINY-NEXT: in r29, 62 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 243 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r22, Y+ |
| ; TINY-NEXT: ld r23, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 13 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: subi r28, 241 |
| ; TINY-NEXT: sbci r29, 255 |
| ; TINY-NEXT: ld r24, Y+ |
| ; TINY-NEXT: ld r25, Y+ |
| ; TINY-NEXT: subi r28, 2 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: subi r28, 15 |
| ; TINY-NEXT: sbci r29, 0 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: pop r29 |
| ; TINY-NEXT: pop r28 |
| ; TINY-NEXT: ret |
| %result = trunc i64 %d to i32 |
| ret i32 %result |
| } |
| |
| define avr_intrcc void @interrupt_handler() { |
| ; AVR-LABEL: interrupt_handler: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: sei |
| ; AVR-NEXT: push r0 |
| ; AVR-NEXT: in r0, 63 |
| ; AVR-NEXT: push r0 |
| ; AVR-NEXT: pop r0 |
| ; AVR-NEXT: out 63, r0 |
| ; AVR-NEXT: pop r0 |
| ; AVR-NEXT: reti |
| ; |
| ; TINY-LABEL: interrupt_handler: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: sei |
| ; TINY-NEXT: push r16 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: push r16 |
| ; TINY-NEXT: pop r16 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: pop r16 |
| ; TINY-NEXT: reti |
| ret void |
| } |
| |
| define avr_signalcc void @signal_handler() { |
| ; AVR-LABEL: signal_handler: |
| ; AVR: ; %bb.0: |
| ; AVR-NEXT: push r0 |
| ; AVR-NEXT: in r0, 63 |
| ; AVR-NEXT: push r0 |
| ; AVR-NEXT: pop r0 |
| ; AVR-NEXT: out 63, r0 |
| ; AVR-NEXT: pop r0 |
| ; AVR-NEXT: reti |
| ; |
| ; TINY-LABEL: signal_handler: |
| ; TINY: ; %bb.0: |
| ; TINY-NEXT: push r16 |
| ; TINY-NEXT: in r16, 63 |
| ; TINY-NEXT: push r16 |
| ; TINY-NEXT: pop r16 |
| ; TINY-NEXT: out 63, r16 |
| ; TINY-NEXT: pop r16 |
| ; TINY-NEXT: reti |
| ret void |
| } |