[Bug rtl-optimization/59350] [4.9 regression] ICE: in vt_expand_var_loc_chain, at var-tracking.c:8212

[dcb314 at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59350

--- Comment #32 from David Binderman <dcb314 at hotmail dot com> ---
Same error with gcc trunk, dated 20131215, for attached
source code.

Flags -O3 -g -fPIC -fstack-protector-strong required.

[dcb@zippy4 foundBugs]$ ../results/bin/gcc -c -O3 -g -fPIC
-fstack-protector-strong bug126.c
zprime.c: In function ‘zfactor’:
zprime.c:577:1: internal compiler error: in vt_expand_var_loc_chain, at
var-tracking.c:8213
0xd1b1d0 vt_expand_var_loc_chain
    ../../src/trunk/gcc/var-tracking.c:8213
0xd1b5c7 vt_expand_loc_callback
    ../../src/trunk/gcc/var-tracking.c:8409
0x6d44de cselib_expand_value_rtx_1
    ../../src/trunk/gcc/cselib.c:1684
0x6d44de cselib_expand_value_rtx_cb(rtx_def*, bitmap_head*, int, rtx_def*
(*)(rtx_def*, bitmap_head*, int, void*), void*)
    ../../src/trunk/gcc/cselib.c:1531

...