https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69432
Bug ID: 69432
Summary: ICE in connect_traces, at dwarf2cfi.c with -O3 -m32
-minline-stringops-dynamically
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: jamborm at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux
Target: i686-linux
Created attachment 37434
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37434&action=edit
C-reduced testcase
The attached testcase is reduced from cromfs-1.5.10.2.
On my x86_64-linux desktop, compiling with
path_to_trunk/inst/bin/g++ -O3 -m32 -minline-stringops-dynamically -S
creduced.C
leads to:
creduced.C: In function ‘void LZMADeCompress()’:
creduced.C:63:33: internal compiler error: in connect_traces, at
dwarf2cfi.c:2752
void LZMADeCompress() { F b(a); }
^
0xaa8a6a connect_traces
/home/mjambor/gcc/trunk/src/gcc/dwarf2cfi.c:2752
0xaac866 execute_dwarf2_frame
/home/mjambor/gcc/trunk/src/gcc/dwarf2cfi.c:2975
The ICE happens with trunk and branches for gcc 5 and 4.9 but does not
with 4.8.
(Please change the component if you can think of a more suitable one.
As you can see, -g is not necessary so I suspect this is an EH bug,
rather than a debug issue. I also can't tell to what extent this is a
target bug.)
