https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106491
Bug ID: 106491
Summary: ICE when compiling ArmSVE intrinsics in PCH
Product: gcc
Version: 11.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: denis.yaroshevskij at gmail dot com
Target Milestone: ---
Created attachment 53391
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53391&action=edit
verbose outputs and .ii files
A stack trace:
```
0xd609b3 crash_signal
../../src/gcc/toplev.c:327
0x7faec4b3951f ???
./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0x10d8340 TYPE_VECTOR_SUBPARTS(tree_node const*)
../../src/gcc/tree.h:3911
0x10d8340 aarch64_sve::gimple_folder::convert_pred(gimple*&, tree_node*,
unsigned int)
../../src/gcc/config/aarch64/aarch64-sve-builtins.cc:2566
0x10e49df fold
../../src/gcc/config/aarch64/aarch64-sve-builtins-base.cc:1096
0x10dae1c aarch64_sve::gimple_folder::fold()
../../src/gcc/config/aarch64/aarch64-sve-builtins.cc:2680
0x10dae1c aarch64_sve::gimple_folder::fold()
../../src/gcc/config/aarch64/aarch64-sve-builtins.cc:2667
0x10dae1c aarch64_sve::gimple_fold_builtin(unsigned int, gimple_stmt_iterator*,
gcall*)
../../src/gcc/config/aarch64/aarch64-sve-builtins.cc:3610
0x104f8f2 aarch64_gimple_fold_builtin
../../src/gcc/config/aarch64/aarch64.c:14096
0xacd886 gimple_fold_call
../../src/gcc/gimple-fold.c:5400
0xacd886 fold_stmt_1
../../src/gcc/gimple-fold.c:6098
0x16d108f lower_stmt
../../src/gcc/gimple-low.c:388
0x16d1a2c lower_sequence
../../src/gcc/gimple-low.c:217
0x16d1a2c lower_gimple_bind
../../src/gcc/gimple-low.c:473
0x16d1f16 lower_function_body
../../src/gcc/gimple-low.c:110
0x16d1f16 execute
../../src/gcc/gimple-low.c:195
```
Reporting this one was tricky, please let me know if you need some more
information
With "-v" I successfully reproduce the crash
"-v -save-temps" causes "-Werror=invalid-pch" to fire
```
cc1plus: error:
/home/dyarosh/space/eve/build_sve512/CMakeFiles/test_pch.dir/cmake_pch.hxx.gch:
not used because `__AARCH64EL__' is defined [-Werror=invalid-pch]
```
If I remove "-Werror" - passes with no crash (maybe it dropped the pch?)
Attaching "-v" output, "-v -save-temps" output and all .*ii files I could find.
Let me know if you need some more information to help reproduce this.
