https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104786
Bug ID: 104786
Summary: [12.0]internal compiler error with extern asm
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: 570070308 at qq dot com
Target Milestone: ---
Created attachment 52565
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52565&action=edit
/tmp/ccusgsXN.out
log:
```
ig@ig-virtual-machine:~/temp$ gcc-12 test5.c -S -o 2.s -freport-bug
-fno-builtin -v
Using built-in specs.
COLLECT_GCC=gcc-12
OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
12-20220222-1ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-12/README.Bugs
--enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr
--with-gcc-major-version-only --program-suffix=-12
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-vtable-verify --enable-plugin
--enable-default-pie --with-system-zlib --enable-libphobos-checking=release
--with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch
--disable-werror --enable-cet --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none=/build/gcc-12-TT8eTw/gcc-12-12-20220222/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-12-TT8eTw/gcc-12-12-20220222/debian/tmp-gcn/usr
--enable-offload-defaulted --without-cuda-driver --enable-checking=release
--build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220222 (experimental) [master r12-7325-g2f59f067610]
(Ubuntu 12-20220222-1ubuntu1)
COLLECT_GCC_OPTIONS='-S' '-o' '2.s' '-freport-bug' '-fno-builtin' '-v'
'-mtune=generic' '-march=x86-64'
/usr/lib/gcc/x86_64-linux-gnu/12/cc1 -quiet -v -imultiarch x86_64-linux-gnu
test5.c -quiet -dumpbase 2.c -dumpbase-ext .c -mtune=generic -march=x86-64
-version -freport-bug -fno-builtin -o 2.s -fasynchronous-unwind-tables
-fstack-protector-strong -Wformat -Wformat-security -fstack-clash-protection
-fcf-protection
GNU C17 (Ubuntu 12-20220222-1ubuntu1) version 12.0.1 20220222 (experimental)
[master r12-7325-g2f59f067610] (x86_64-linux-gnu)
compiled by GNU C version 12.0.1 20220222 (experimental) [master
r12-7325-g2f59f067610], GMP version 6.2.1, MPFR version 4.1.0, MPC version
1.2.1, isl version isl-0.24-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/x86_64-linux-gnu/12/include-fixed"
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-linux-gnu/12/../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/x86_64-linux-gnu/12/include
/usr/local/include
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
GNU C17 (Ubuntu 12-20220222-1ubuntu1) version 12.0.1 20220222 (experimental)
[master r12-7325-g2f59f067610] (x86_64-linux-gnu)
compiled by GNU C version 12.0.1 20220222 (experimental) [master
r12-7325-g2f59f067610], GMP version 6.2.1, MPFR version 4.1.0, MPC version
1.2.1, isl version isl-0.24-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: b0de683ccdd6a31c725d9273cea9e1f8
test5.c: In function ‘memcpy’:
test5.c:23:10: warning: passing argument 1 of ‘test’ discards ‘const’ qualifier
from pointer target type [-Wdiscarded-qualifiers]
23 | test(si);
| ^~
test5.c:3:18: note: expected ‘void *’ but argument is of type ‘const void *’
3 | void test(void * a);
| ~~~~~~~^
during RTL pass: expand
test5.c:11:9: internal compiler error: in assign_stack_temp_for_type, at
function.cc:798
11 | __asm__ inline (
| ^~~~~~~
0x63d27e assign_stack_temp_for_type(machine_mode, poly_int<1u, long>,
tree_node*)
../../src/gcc/function.cc:798
0x90cb33 assign_temp(tree_node*, int, int)
../../src/gcc/function.cc:1018
0x7aa202 expand_asm_stmt
../../src/gcc/cfgexpand.cc:3332
0x7adccc expand_gimple_stmt_1
../../src/gcc/cfgexpand.cc:3861
0x7adccc expand_gimple_stmt
../../src/gcc/cfgexpand.cc:4028
0x7b2a77 expand_gimple_basic_block
../../src/gcc/cfgexpand.cc:6069
0x7b4716 execute
../../src/gcc/cfgexpand.cc:6795
Please submit a full bug report, with preprocessed source.
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-12/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccusgsXN.out file, please attach this to
your bugreport.
ERROR: Cannot create report: [Errno 17] File exists:
'/var/crash/_usr_lib_gcc_x86_64-linux-gnu_12_cc1.1000.crash'
ig@ig-virtual-machine:~/temp$
```
test5.c:
```
#include <stddef.h>
void test(void * a);
void memcpy(void * di, const void * si, size_t num)
{
{
const void * temp_si=si;
void *temp_di=di;
size_t temp_num=num;
__asm__ inline (
"cld\n\t"
"shrq $4, %%rcx\n\t"
"%[rsi] %[rdi]\n\t"
"rep; movsq\n\t"
"movq %[rcx2], %%rcx\n\t"
"rep; movsb"
:[rcx]"+c"(temp_num), [rdi]"+D"(temp_di), [rsi]"+S"(temp_si),
"=X"( *(char (*)[num])di )
:[rcx2]"g"( num&7 ), "X"( (const char (*)[num])si )
:"cc"
);
}
test(si);
}
```
/tmp/ccusgsXN.out:
see attachment
the gcc-12 is installed by apt on ubuntu 22.04
