https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117416
Bug ID: 117416
Summary: [15 Regression] ICE: in gen_prefetch, at
config/i386/i386.md:28541 with
__builtin_ia32_prefetch()
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
Compiler output:
$ cat testcase.c
void foo() { __builtin_ia32_prefetch(0, 5, 0, 0); }
$ x86_64-pc-linux-gnu-gcc testcase.c
during RTL pass: expand
testcase.c: In function 'foo':
testcase.c:1:14: internal compiler error: in gen_prefetch, at
config/i386/i386.md:28541
1 | void foo() { __builtin_ia32_prefetch(0, 5, 0, 0); }
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x2c9c5fe internal_error(char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:518
0xe8453b fancy_abort(char const*, int, char const*)
/repo/gcc-trunk/gcc/diagnostic.cc:1696
0x9da865 gen_prefetch(rtx_def*, rtx_def*, rtx_def*)
/repo/gcc-trunk/gcc/config/i386/i386.md:28541
0x1b068b0 ix86_expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode,
int)
/repo/gcc-trunk/gcc/config/i386/i386-expand.cc:14233
0x1177039 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/repo/gcc-trunk/gcc/expr.cc:12402
0x1035e37 expand_expr(tree_node*, rtx_def*, machine_mode, expand_modifier)
/repo/gcc-trunk/gcc/expr.h:323
0x1035e37 expand_call_stmt
/repo/gcc-trunk/gcc/cfgexpand.cc:2897
0x1035e37 expand_gimple_stmt_1
/repo/gcc-trunk/gcc/cfgexpand.cc:3964
0x1035e37 expand_gimple_stmt
/repo/gcc-trunk/gcc/cfgexpand.cc:4106
0x103c25e expand_gimple_basic_block
/repo/gcc-trunk/gcc/cfgexpand.cc:6162
0x103df47 execute
/repo/gcc-trunk/gcc/cfgexpand.cc:6901
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-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r15-4860-20241101203111-g6a2e8913df6-checking-yes-rtl-df-extra-nobootstrap-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
--disable-bootstrap --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-r15-4860-20241101203111-g6a2e8913df6-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20241102 (experimental) (GCC)
