File: UnreachableEliminate.ll

package info (click to toggle)
llvm 2.2-12
  • links: PTS, VCS
  • area: main
  • in suites: lenny
  • size: 38,648 kB
  • ctags: 28,258
  • sloc: cpp: 215,479; sh: 12,132; ansic: 10,002; yacc: 5,525; perl: 2,352; ml: 1,580; makefile: 956; pascal: 718; lex: 602; exp: 320; ada: 193; lisp: 160; csh: 116; objc: 59; python: 59; tcl: 20
file content (29 lines) | stat: -rw-r--r-- 499 bytes parent folder | download
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
; RUN: llvm-upgrade < %s | llvm-as | opt -simplifycfg | llvm-dis | not grep unreachable

void %test1(bool %C, bool* %BP) {
	br bool %C, label %T, label %F
T:
	store bool %C, bool* %BP  ;; dead
	unreachable
F:
	ret void
}

void %test2() {
	invoke void %test2() to label %N unwind label %U
U:
	unreachable
N:
	ret void
}

int %test3(int %v) {
	switch int %v, label %default [ int 1, label %U
                                        int 2, label %T]
default:
	ret int 1
U:
	unreachable
T:
	ret int 2
}