50 lines
2.4 KiB
YAML
50 lines
2.4 KiB
YAML
# RUN: llc %s -mtriple=m68k -start-after=prologepilog -O0 -filetype=obj -o - \
|
|
# RUN: | extract-section .text \
|
|
# RUN: | FileCheck %s -check-prefixes=BRA8,BRA16
|
|
|
|
#------------------------------------------------------------------------------
|
|
# MxBRA unconditionally branches somewhere
|
|
#------------------------------------------------------------------------------
|
|
|
|
--- # MxBRA8
|
|
# -------------------------------+-------------------------------
|
|
# F E D C B A 9 8 | 7 6 5 4 3 2 1 0
|
|
# -------------------------------+-------------------------------
|
|
# 0 1 1 0 0 0 0 0 | 8-BIT DISPLACEMENT
|
|
# -------------------------------+-------------------------------
|
|
# BRA8: 0 1 1 0 0 0 0 0 . 0 0 0 0 0 0 0 1
|
|
# BRA8-SAME: 0 1 1 0 0 0 0 0 . 0 0 1 0 1 0 1 0
|
|
#
|
|
# NOTE MxBRA branches cannot encode 0 displacement, 0 in displacement instructs
|
|
# to use additional word. Also it cannot encode -1 since all 1s instruct to use
|
|
# two additional words to encode 32bit offset(since M68020).
|
|
name: MxBRA8
|
|
body: |
|
|
bb.0:
|
|
BRA8 1, implicit $ccr
|
|
BRA8 42, implicit $ccr
|
|
|
|
...
|
|
--- # MxBRA16
|
|
# -------------------------------+-------------------------------
|
|
# F E D C B A 9 8 | 7 6 5 4 3 2 1 0
|
|
# -------------------------------+-------------------------------
|
|
# 0 1 1 0 0 0 0 0 | 0 0 0 0 0 0 0 0
|
|
# ---------------------------------------------------------------
|
|
# BRA16-SAME: 0 1 1 0 0 0 0 0 . 0 0 0 0 0 0 0 0
|
|
# BRA16-SAME: 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 0
|
|
# -------------------------------+-------------------------------
|
|
# BRA16-SAME: 0 1 1 0 0 0 0 0 . 0 0 0 0 0 0 0 0
|
|
# BRA16-SAME: 1 1 1 1 1 1 1 1 . 1 1 1 1 1 1 1 1
|
|
# ---------------------------------------------------------------
|
|
# BRA16-SAME: 0 1 1 0 0 0 0 0 . 0 0 0 0 0 0 0 0
|
|
# BRA16-SAME: 0 0 0 0 0 0 0 0 . 0 0 1 0 1 0 1 0
|
|
name: MxBRA16
|
|
body: |
|
|
bb.0:
|
|
BRA16 0, implicit $ccr
|
|
BRA16 -1, implicit $ccr
|
|
BRA16 42, implicit $ccr
|
|
|
|
...
|