File: update-loop-info-in-subloops.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (36 lines) | stat: -rw-r--r-- 737 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
27
28
29
30
31
32
33
34
35
36
 
; RUN: opt -S < %s -loop-unroll -block-freq | FileCheck %s
; RUN: opt -S < %s -passes='require<opt-remark-emit>,loop-unroll,require<block-freq>' | FileCheck %s
; Crasher from PR20987.

; CHECK: define void @update_loop_info_in_subloops
; CHECK: entry:
; CHECK: L:
; CHECK: L.inner:
; CHECK: L.inner.latch:
; CHECK: L.latch:
; CHECK: L.inner.1:
; CHECK: L.inner.latch.1:
; CHECK: L.latch.1:

define void @update_loop_info_in_subloops() {
entry:
  br label %L

L:
  %0 = phi i64 [ 1, %entry ], [ %1, %L.latch ]
  br label %L.inner

L.inner:
  br label %L.inner.latch

L.inner.latch:
  br i1 false, label %L.latch, label %L.inner

L.latch:
  %1 = add i64 %0, 1
  %2 = icmp eq i64 %1, 3
  br i1 %2, label %exit, label %L

exit:
  ret void
}