File: br-undef-cond.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (26 lines) | stat: -rw-r--r-- 600 bytes parent folder | download | duplicates (9) 
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
 
; RUN: llc < %s -verify-machineinstrs

; Make sure we don't end up with a CBNZ of an undef v-/phys-reg.

target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios"

declare void @bar(ptr)

define void @foo(ptr %m, i32 %off0) {
.thread1653:
  br i1 undef, label %0, label %.thread1880

  %1 = icmp eq i32 undef, 0
  %.not = xor i1 %1, true
  %brmerge = or i1 %.not, undef
  br i1 %brmerge, label %.thread1880, label %.thread1705

.thread1705:
  ret void

.thread1880:
  %m1652.ph = phi ptr [ %m, %0 ], [ null, %.thread1653 ]
  call void @bar(ptr %m1652.ph)
  ret void
}