File: 2013-05-17-VarargsAndBlockAddress.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (25 lines) | stat: -rw-r--r-- 670 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
 
; RUN: opt %s -passes=deadargelim -S | FileCheck %s


@block_addr = global i8* blockaddress(@varargs_func, %l1)
; CHECK: @block_addr = global i8* blockaddress(@varargs_func, %l1)


; This function is referenced by a "blockaddress" constant but it is
; not address-taken, so the pass should be able to remove its unused
; varargs.

define internal i32 @varargs_func(i8* %addr, ...) {
  indirectbr i8* %addr, [ label %l1, label %l2 ]
l1:
  ret i32 1
l2:
  ret i32 2
}
; CHECK: define internal i32 @varargs_func(i8* %addr) {

define i32 @caller(i8* %addr) {
  %r = call i32 (i8*, ...) @varargs_func(i8* %addr)
  ret i32 %r
}
; CHECK: %r = call i32 @varargs_func(i8* %addr)