File: hoist-more-than-two-branches.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (31 lines) | stat: -rw-r--r-- 479 bytes parent folder | download | duplicates (15)
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
; RUN: opt -gvn-hoist -S < %s | FileCheck %s

; CHECK: store
; CHECK-NOT: store

; Check that an instruction can be hoisted to a basic block
; with more than two successors.

@G = external global i32, align 4

define void @foo(i32 %c1) {
entry:
  switch i32 %c1, label %exit1 [
    i32 0, label %sw0
    i32 1, label %sw1
  ]

sw0:
  store i32 1, i32* @G
  br label %exit

sw1:
  store i32 1, i32* @G
  br label %exit

exit1:
  store i32 1, i32* @G
  ret void
exit:
  ret void
}