https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95620
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|UNCONFIRMED |RESOLVED
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
So we basically change assembly in the following way:
$ diff -u good.s bad.s -U999
--- good.s 2020-06-09 23:37:35.755366723 +0200
+++ bad.s 2020-06-09 23:37:36.771361476 +0200
@@ -1,13 +1,13 @@
.file "<artificial>"
.text
.globl main
.type main, @function
main:
.LFB1:
movl b(%rip), %edx
.LFE1:
.size main, .-main
- .local b
- .comm b,4,4
.local a
.comm a,2430270464
+ .local b
+ .comm b,4,4
and logically the relocation for 'b(%rip)' now has to go over the huge 'a'
array.
It's invalid to me, I would recommend using -mcmodel=large.