File: deadfunction.ll

package info (click to toggle)
llvm-3.1 3.1-1
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 80,224 kB
  • sloc: cpp: 491,014; asm: 110,971; ansic: 14,579; sh: 13,120; python: 6,152; ml: 4,719; makefile: 1,830; pascal: 1,553; perl: 874; xml: 283; lisp: 187; csh: 117; exp: 4
file content (27 lines) | stat: -rw-r--r-- 706 bytes parent folder | download | duplicates (4)
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 -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 i8*] [i8* blockaddress(@test, %a), i8* blockaddress(@test, %b), i8* 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 i8*]* @test.x, i64 0, i64 %idxprom
  %0 = load i8** %arrayidx, align 8
  indirectbr i8* %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
}