https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87484
Bug ID: 87484
Summary: internal compiler error: in dwf_regno, at
dwarf2cfi.c:909
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: zwilcox at sandia dot gov
Target Milestone: ---
Created attachment 44774
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44774&action=edit
Files that produce errors
Host: Win10
Target: PowerPC
Flags: -O0 -g3 -Wall -mspe=yes -mabi=spe -mfloat-gprs=double -c -mbig-endian
-fno-builtin -fomit-frame-pointer -Wno-unknown-pragmas -mcpu=8548 -MMD -MP -MF
Command line that triggered bug: powerpc-eabi-gcc -O0 -g3 -Wall -mspe=yes
-mabi=spe -mfloat-gprs=double -c -mbig-endian -fno-builtin -fomit-frame-pointer
-Wno-unknown-pragmas -mcpu=8548 -MMD -MP -MF"src/CompilerError.d"
-MT"src/CompilerError.o" -o "src/CompilerError.o" "../src/CompilerError.c"
Compiler output:
In function 'foo':
../src/CompilerError.c:13:20: warning: unused variable 'lower'
[-Wunused-variable]
volatile uint64_t lower = *(ADDR1);
^
../src/CompilerError.c:16:1: internal compiler error: in dwf_regno, at
dwarf2cfi.c:909
Attached is a tar file.
The tar file contains three versions of the code; one that produces the error,
and two that do not, and the preprocessed file
