https://llvm.org/bugs/show_bug.cgi?id=23850
Bug ID: 23850
Summary: inlined symbols remain undefined in object code
Product: clang
Version: 3.5
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: LLVM Codegen
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
When using `-ON` where `N < 2` the generated object code fails to either inline
functions or generate code for said functions:
```
% clang -O0 -c bug.c
% objdump -t bug.o
bug.o: file format elf64-x86-64
SYMBOL TABLE:
0000000000000000 l df *ABS* 0000000000000000 bug.c
0000000000000000 l d .text 0000000000000000 .text
0000000000000000 l d .data 0000000000000000 .data
0000000000000000 l d .bss 0000000000000000 .bss
0000000000000000 l d .comment 0000000000000000 .comment
0000000000000000 l d .note.GNU-stack 0000000000000000
.note.GNU-stack
0000000000000000 l d .eh_frame 0000000000000000 .eh_frame
0000000000000000 g F .text 000000000000000d g
0000000000000000 *UND* 0000000000000000 f
[tommd@vodka]/tmp% cat bug.c
inline void f()
{}
void g()
{
f();
}
```
Notice how `f` is marked `inline` then appears as `UND` in the objdump.
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