https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117332
Bug ID: 117332
Summary: ICE: maximum number of generated reload insns per insn
achieved (90) with custom flags
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 59475
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59475&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 -fno-dce -fharden-compares
-fno-tree-dominator-opts -fno-tree-forwprop -fno-tree-vrp -mavx512vl testcase.c
during RTL pass: reload
testcase.c: In function 'foo':
testcase.c:17:1: internal compiler error: maximum number of generated reload
insns per insn achieved (90)
17 | }
| ^
0x2da44be internal_error(char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:518
0x13f4f10 lra_constraints(bool)
/repo/gcc-trunk/gcc/lra-constraints.cc:5405
0x13dc2f4 lra(_IO_FILE*, int)
/repo/gcc-trunk/gcc/lra.cc:2445
0x13854af do_reload
/repo/gcc-trunk/gcc/ira.cc:5977
0x13854af execute
/repo/gcc-trunk/gcc/ira.cc:6165
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.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-trunk-r15-4700-202410270017288ee29886-checking-yes-rtl-df-extra-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r15-4700-202410270017288ee29886-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/15.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r15-4700-202410270017288ee29886-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20241027 (experimental) (GCC)
