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
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
; RUN: opt < %s -passes=globalopt -S | FileCheck %s
; When removing the store to @global in @foo, the pass would incorrectly return
; false. This was caught by the pass return status check that is hidden under
; EXPENSIVE_CHECKS.
; CHECK: @global = internal unnamed_addr global i16* null, align 1
; CHECK-LABEL: @foo
; CHECK-NEXT: entry:
; CHECK-NEXT: ret i16 undef
@global = internal unnamed_addr global i16* null, align 1
; Function Attrs: nofree noinline norecurse nounwind writeonly
define i16 @foo(i16 %c) local_unnamed_addr #0 {
entry:
%local1.addr = alloca i16, align 1
store i16* %local1.addr, i16** @global, align 1
ret i16 undef
}
; Function Attrs: noinline nounwind writeonly
define i16 @bar() local_unnamed_addr #1 {
entry:
%local2 = alloca [1 x i16], align 1
%0 = bitcast [1 x i16]* %local2 to i8*
call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull %0)
%arraydecay = getelementptr inbounds [1 x i16], [1 x i16]* %local2, i16 0, i16 0
store i16* %arraydecay, i16** @global, align 1
call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull %0)
ret i16 undef
}
; Function Attrs: argmemonly nounwind willreturn
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #2
; Function Attrs: argmemonly nounwind willreturn
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #2
attributes #0 = { nofree noinline norecurse nounwind writeonly }
attributes #1 = { noinline nounwind writeonly }
attributes #2 = { argmemonly nounwind willreturn }
|
