File: user-with-multiple-uses.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 (30 lines) | stat: -rw-r--r-- 612 bytes parent folder | download | duplicates (16) 
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
 
; RUN: opt < %s -S -passes=ipsccp | FileCheck %s
; PR5596

; IPSCCP should propagate the 0 argument, eliminate the switch, and propagate
; the result.

; CHECK: define i32 @main() #0 {
; CHECK-NEXT: entry:
; CHECK-NEXT: %call2 = tail call i32 @wwrite(i64 0) [[NUW:#[0-9]+]]
; CHECK-NEXT: ret i32 123

define i32 @main() noreturn nounwind {
entry:
  %call2 = tail call i32 @wwrite(i64 0) nounwind
  ret i32 %call2
}

define internal i32 @wwrite(i64 %i) nounwind {
entry:
  switch i64 %i, label %sw.default [
    i64 3, label %return
    i64 10, label %return
  ]

sw.default:
  ret i32 123

return:
  ret i32 0
}