File: user-with-multiple-uses.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 (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
}