File: deadfunction.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (27 lines) | stat: -rw-r--r-- 721 bytes parent folder | download | duplicates (12) 
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
 
; RUN: opt < %s -passes=globalopt -S | FileCheck %s

; CHECK-NOT: test

declare void @aa()
declare void @bb()

; Test that we can erase a function which has a blockaddress referring to it
@test.x = internal unnamed_addr constant [3 x ptr] [ptr blockaddress(@test, %a), ptr blockaddress(@test, %b), ptr blockaddress(@test, %c)], align 16
define internal void @test(i32 %n) nounwind noinline {
entry:
  %idxprom = sext i32 %n to i64
  %arrayidx = getelementptr inbounds [3 x ptr], ptr @test.x, i64 0, i64 %idxprom
  %0 = load ptr, ptr %arrayidx, align 8
  indirectbr ptr %0, [label %a, label %b, label %c]

a:
  tail call void @aa() nounwind
  br label %b

b:
  tail call void @bb() nounwind
  br label %c

c:
  ret void
}