File: branch-folder-oneinst.mir

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (29 lines) | stat: -rw-r--r-- 781 bytes parent folder | download | duplicates (24) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
# 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
...