[Bug c/58849] New: complex number, memory is corrupted

[otmar.struwe at web dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58849

            Bug ID: 58849
           Summary: complex number, memory is corrupted
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: otmar.struwe at web dot de

Created attachment 31075
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31075&action=edit
test source

In the below test program the value of the variable "comp" is corrupted.

Wrong output is:
    doub = -0.544021 
    doub = -0 

Expected output:
        doub = -0.544021 
        doub = -0.544021 


Compiled with:
    gcc -Wall -std=c11 -Wpedantic -o complex.exe complex.c 


Compiler:
    Using built-in specs.
    COLLECT_GCC=d:\pc\msys\1.0\mingw\bin\gcc.exe
    COLLECT_LTO_WRAPPER=d:/pc/msys/1.0/mingw/bin/../libexec/gcc/mingw32/4.8.
1/lto-wrapper.exe
    Target: mingw32
    Configured with: ../gcc-4.8.1/configure --prefix=/mingw
--host=mingw32 --build=mingw32 --without-pic --enable-shared
--enable-static --with-gnu-ld --enable-lto --enable-libssp
--disable-multilib --enable-languages=c,c++,fortran,objc,obj-c++,ada
--disable-sjlj-exceptions --with-dwarf2 --disable-win32-registry
--enable-libstdcxx-debug --enable-version-specific-runtime-libs
--with-gmp=/usr/src/pkg/gmp-5.1.2-1-mingw32-src/bld
--with-mpc=/usr/src/pkg/mpc-1.0.1-1-mingw32-src/bld --with-mpfr=
--with-system-zlib --with-gnu-as --enable-decimal-float=yes
--enable-libgomp --enable-threads --with-libiconv-prefix=/mingw32
--with-libintl-prefix=/mingw --disable-bootstrap     LDFLAGS=-s
CFLAGS=-D_USE_32BIT_TIME_T
    Thread model: win32
    gcc version 4.8.1 (GCC)