File: jumptable-label.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (33 lines) | stat: -rw-r--r-- 1,021 bytes parent folder | download | duplicates (33)
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
; RUN: llc < %s -mtriple thumbv6-apple-macosx10.6.0 | FileCheck %s

; test that we print the label of a bb that is only used in a jump table.

; CHECK:	.long	[[JUMPTABLE_DEST:LBB[0-9]+_[0-9]+]]
; CHECK: [[JUMPTABLE_DEST]]:

define i32 @calculate()  {
entry:
  switch i32 undef, label %return [
    i32 1, label %sw.bb
    i32 2, label %sw.bb6
    i32 3, label %sw.bb13
    i32 4, label %sw.bb20
  ]

sw.bb:                                            ; preds = %entry
  br label %return

sw.bb6:                                           ; preds = %entry
  br label %return

sw.bb13:                                          ; preds = %entry
  br label %return

sw.bb20:                                          ; preds = %entry
  %div = sdiv i32 undef, undef
  br label %return

return:                                           ; preds = %sw.bb20, %sw.bb13, %sw.bb6, %sw.bb, %entry
  %retval.0 = phi i32 [ %div, %sw.bb20 ], [ undef, %sw.bb13 ], [ undef, %sw.bb6 ], [ undef, %sw.bb ], [ 0, %entry ]
  ret i32 %retval.0
}