blob: cfb6da3e9ae7a1dc09df9c3cd5495a50d3e68eef [file] [log] [blame]
# RUN: llc -o - %s -mtriple=aarch64 -run-pass branch-folder -verify-machineinstrs | FileCheck %s
# Check that BranchFolding pass is able to hoist a common instruction into a block with a single branch instruction.
name: func
tracksRegLiveness: true
body: |
bb.0:
; CHECK-LABEL: name: func
; CHECK-LABEL: bb.0:
; CHECK: $x0 = ADDXri $x0, 1, 0
; CHECK: CBZX $x1, %bb.2
liveins: $x0, $x1
CBZX $x1, %bb.2
bb.1:
; CHECK-LABEL: bb.1:
; CHECK-NOT: $x0 = ADDXri $x0, 1, 0
liveins: $x0
$x0 = ADDXri $x0, 1, 0
$x0 = ADDXri $x0, 2, 0
RET_ReallyLR implicit $x0
bb.2:
; CHECK-LABEL: bb.2:
; CHECK-NOT: $x0 = ADDXri $x0, 1, 0
liveins: $x0
$x0 = ADDXri $x0, 1, 0
$x0 = ADDXri $x0, 3, 0
RET_ReallyLR implicit $x0
...