https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127500
Bug ID: 127500
Summary: ICE: in change_address_1, at emit-rtl.cc:2316
Product: gcc
Version: 17.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: kyuwoncho18 at gmail dot com
Target Milestone: ---
typedef double v2df __attribute__((vector_size (16)));
struct big { char pad[0x7FFFFFF0]; v2df v; };
v2df f (struct big b) { return b.v; }
Ouput:
$ gcc -O2 ./repro.c
during RTL pass: mach
<source>: In function 'f':
<source>:5:37: internal compiler error: in change_address_1, at
emit-rtl.cc:2316
5 | v2df f (struct big b) { return b.v; }
| ^
0x28bf9e8 diagnostics::context::diagnostic_impl(rich_location*,
diagnostics::metadata const*, diagnostics::option_id, char const*,
__va_list_tag (*) [1], diagnostics::kind)
???:0
0x28b462b internal_error(char const*, ...)
???:0
0xa781ba fancy_abort(char const*, int, char const*)
???:0
0xd62c02 adjust_address_1(rtx_def*, machine_mode, poly_int<1u, long>, int, int,
int, poly_int<1u, long>)
???:0
/cefs/2b/2bdfe93c64e7024d366c3f8a_gcc-trunk-20260919/bin/../libexec/gcc/x86_64-linux-gnu/17.0.0/cc1
-quiet -imultiarch x86_64-linux-gnu -iprefix
/cefs/2b/2bdfe93c64e7024d366c3f8a_gcc-trunk-20260919/bin/../lib/gcc/x86_64-linux-gnu/17.0.0/
<source> -quiet -dumpdir /app/ -dumpbase output.c -dumpbase-ext .c -masm=intel
-mtune=generic -march=x86-64 -g -O1 -fdiagnostics-color=always -fno-verbose-asm
-o /app/output.s
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
https://gcc.godbolt.org/z/xjc6o6zsr
