https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101473
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. The difference is
--- t2.g 2021-07-19 15:17:18.856725031 +0200
+++ t1.g 2021-07-19 15:17:20.632748927 +0200
@@ -1387,20 +1387,20 @@
The Directory Table (offset 0x167, lines 5, columns 1):
Entry Name
0 (indirect line string, offset: 0x0): /tmp
- 1 (indirect line string, offset: 0x16):
/tmp/install_alternate_two/usr/local/lib64/gcc/x86_64-pc-linux-gnu/12.0.0/include
- 2 (indirect line string, offset: 0x82): /usr/include/bits/types
- 3 (indirect line string, offset: 0x70): /usr/include/bits
- 4 (indirect line string, offset: 0x9a): /usr/include
+ 1 (indirect line string, offset: 0x55):
/tmp/install_one/usr/local/lib64/gcc/x86_64-pc-linux-gnu/12.0.0/include
+ 2 (indirect line string, offset: 0x3d): /usr/include/bits/types
+ 3 (indirect line string, offset: 0x2b): /usr/include/bits
+ 4 (indirect line string, offset: 0x16): /usr/include
where stddef.h is included from. I wonder how we can avoid this difference
without making the DWARF "invalid" though. stddef.h is provided by the
compiler. Btw, this doesn't neeed -flto to trigger it's visible with
plain -g as well, it just doesn't end up in differences in the symbol
table without -flto but the debug info still differs.
