https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68701
Bug ID: 68701
Summary: "gcc -m32 -finstrument-functions -ffixed-ebp" produces
internal compiler error
Product: gcc
Version: 4.9.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: henric at bergenwall dot com
Target Milestone: ---
Program to be compiled:
a.c:
int main(int argc, char* argv[])
{
return argc-1;
}
Full compile command: gcc -m32 -finstrument-functions -ffixed-ebp a.c
I have tested to compile the program with the following versions of gcc:
gcc-4.3.4: Compilation is successful!
gcc-4.7.1: Compilation is successful!
gcc-4.8.1: Compilation is successful!
gcc-4.9.1: Compilation fails!
gcc-4.9.2: Compilation fails!
gcc-5.2.0: Compilation fails!
When the compilation is successful, the compiler gives no output.
When the compilation fails, the compiler produces the following output:
> gcc -m32 -finstrument-functions -ffixed-ebp a.c
a.c: In function 'main':
a.c:4:1: internal compiler error: in dwarf2out_frame_debug_expr, at
dwarf2cfi.c:1550
}
^
0x66b891 dwarf2out_frame_debug_expr
/tmp/gcc391/build-gcc-4.9.1/../gcc-4.9.1/gcc/dwarf2cfi.c:1548
0x66bda3 dwarf2out_frame_debug
/tmp/gcc391/build-gcc-4.9.1/../gcc-4.9.1/gcc/dwarf2cfi.c:2043
0x66bda3 scan_insn_after
/tmp/gcc391/build-gcc-4.9.1/../gcc-4.9.1/gcc/dwarf2cfi.c:2369
0x66db12 scan_trace
/tmp/gcc391/build-gcc-4.9.1/../gcc-4.9.1/gcc/dwarf2cfi.c:2526
0x66e468 create_cfi_notes
/tmp/gcc391/build-gcc-4.9.1/../gcc-4.9.1/gcc/dwarf2cfi.c:2565
0x66e468 execute_dwarf2_frame
/tmp/gcc391/build-gcc-4.9.1/../gcc-4.9.1/gcc/dwarf2cfi.c:2925
0x66e468 execute
/tmp/gcc391/build-gcc-4.9.1/../gcc-4.9.1/gcc/dwarf2cfi.c:3421
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Here is a more detailed description of the gcc-4.9.1 version:
> gcc -v
Using built-in specs.
COLLECT_GCC=/proj/epg-tools/gcc/4.9.1/bin/gcc
COLLECT_LTO_WRAPPER=/proj/epg-tools/gcc/4.9.1/libexec/gcc/x86_64-unknown-linux-gnu/4.9.1/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /tmp/gcc391/build-gcc-4.9.1/../gcc-4.9.1/configure
--prefix=/proj/epg-tools/gcc/4.9.1
Thread model: posix
gcc version 4.9.1 (GCC)
