https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63741
Bug ID: 63741
Summary: lm32 ICE in dwarf2out_frame_debug_expr, at
dwarf2cfi.c:1677
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: joel at gcc dot gnu.org
Created attachment 33886
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33886&action=edit
Preprocessed RTEMS fastlz.c which produces the error.
The attached preprocessed code gives an ICE at -O0, -O1, -O2, and -0s. Dropping
the -g gets by the ICE so this seems like a debug info issue.
lm32-rtems4.11-gcc -O0 -g -c fastlz.c
lm32-rtems4.11-gcc --pipe -DHAVE_CONFIG_H -I..
-I../../cpukit/../../../milkymist/lib/include -DRTEMS_RTL_RAP_LOADER=1
-DRTEMS_RTL_ELF_LOADER=1 -mbarrel-shift-enabled -mmultiply-enabled
-mdivide-enabled -msign-extend-enabled -O2 -g -Wall -Wmissing-prototypes
-Wimplicit-function-declaration -Wstrict-prototypes -Wnested-externs -MT
libdl_a-fastlz.o -MD -MP -MF .deps/libdl_a-fastlz.Tpo -c -o libdl_a-fastlz.o
`test -f 'fastlz.c' || echo
'../../../../../../rtems/c/src/../../cpukit/libdl/'`fastlz.c
In file included from
../../../../../../rtems/c/src/../../cpukit/libdl/fastlz.c:113:0:
../../../../../../rtems/c/src/../../cpukit/libdl/fastlz.c: In function
'fastlz1_compress':
../../../../../../rtems/c/src/../../cpukit/libdl/fastlz.c:418:1: internal
compiler error: in dwarf2out_frame_debug_expr, at dwarf2cfi.c:1677
}
^
0x52e8b6 dwarf2out_frame_debug_expr
../../gcc-4.9.1/gcc/dwarf2cfi.c:1675
0x52ef6c dwarf2out_frame_debug
../../gcc-4.9.1/gcc/dwarf2cfi.c:2043
0x52ef6c scan_insn_after
../../gcc-4.9.1/gcc/dwarf2cfi.c:2369
0x5307d2 scan_trace
../../gcc-4.9.1/gcc/dwarf2cfi.c:2526
0x5311d5 create_cfi_notes
../../gcc-4.9.1/gcc/dwarf2cfi.c:2565
0x5311d5 execute_dwarf2_frame
../../gcc-4.9.1/gcc/dwarf2cfi.c:2925
0x5311d5 execute
../../gcc-4.9.1/gcc/dwarf2cfi.c:3421
Please submit a full bug report,
with preprocessed source if appropriate.
