https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113602
Bug ID: 113602
Summary: ICE: in vn_reference_maybe_forwprop_address, at
tree-ssa-sccvn.cc:1426 with invalid _BitInt() register
asm with -O2 -fno-tree-loop-optimize
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: tree-optimization
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 57216
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57216&action=edit
reduced testcase (from gcc.dg/torture/pr60606-1.c)
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 -fno-tree-loop-optimize testcase.c
during GIMPLE pass: fre
testcase.c: In function 'f':
testcase.c:2:1: internal compiler error: in
vn_reference_maybe_forwprop_address, at tree-ssa-sccvn.cc:1426
2 | f(void) {
| ^
0x875c2c vn_reference_maybe_forwprop_address
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:1426
0x17176d8 valueize_refs_1
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:1718
0x171c008 valueize_shared_reference_ops_from_ref
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:1763
0x171c008 valueize_shared_reference_ops_from_ref
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:1757
0x171c008 vn_reference_lookup(tree_node*, tree_node*, vn_lookup_kind,
vn_reference_s**, bool, tree_node**, tree_node*, bool)
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:3963
0x1720437 visit_reference_op_load
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:5752
0x1720437 visit_stmt
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:6273
0x1720abb process_bb
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:8037
0x1722496 do_rpo_vn_1
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:8638
0x172400b execute
/repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:8799
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-r14-8419-20240125172014-gc6c2a1d79eb-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/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 --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-8419-20240125172014-gc6c2a1d79eb-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240125 (experimental) (GCC)
