xref: /aosp_15_r20/external/llvm/test/Transforms/DeadArgElim/2013-05-17-VarargsAndBlockAddress.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt %s -deadargelim -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker@block_addr = global i8* blockaddress(@varargs_func, %l1)
5*9880d681SAndroid Build Coastguard Worker; CHECK: @block_addr = global i8* blockaddress(@varargs_func, %l1)
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Worker; This function is referenced by a "blockaddress" constant but it is
9*9880d681SAndroid Build Coastguard Worker; not address-taken, so the pass should be able to remove its unused
10*9880d681SAndroid Build Coastguard Worker; varargs.
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Workerdefine internal i32 @varargs_func(i8* %addr, ...) {
13*9880d681SAndroid Build Coastguard Worker  indirectbr i8* %addr, [ label %l1, label %l2 ]
14*9880d681SAndroid Build Coastguard Workerl1:
15*9880d681SAndroid Build Coastguard Worker  ret i32 1
16*9880d681SAndroid Build Coastguard Workerl2:
17*9880d681SAndroid Build Coastguard Worker  ret i32 2
18*9880d681SAndroid Build Coastguard Worker}
19*9880d681SAndroid Build Coastguard Worker; CHECK: define internal i32 @varargs_func(i8* %addr) {
20*9880d681SAndroid Build Coastguard Worker
21*9880d681SAndroid Build Coastguard Workerdefine i32 @caller(i8* %addr) {
22*9880d681SAndroid Build Coastguard Worker  %r = call i32 (i8*, ...) @varargs_func(i8* %addr)
23*9880d681SAndroid Build Coastguard Worker  ret i32 %r
24*9880d681SAndroid Build Coastguard Worker}
25*9880d681SAndroid Build Coastguard Worker; CHECK: %r = call i32 @varargs_func(i8* %addr)
26