[Bug binutils/26495] New: UBSAN error: gas/config/tc-score7.c:6724:72:

[mliska at suse dot cz]

https://sourceware.org/bugzilla/show_bug.cgi?id=26495

            Bug ID: 26495
           Summary: UBSAN error: gas/config/tc-score7.c:6724:72:
           Product: binutils
           Version: 2.34
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: mliska at suse dot cz
  Target Milestone: ---

The following fails when I build binutils with:
configure --build=x86_64-linux --disable-nls --disable-gdb --disable-gdbserver
--disable-sim --disable-readline --disable-libdecnumber --enable-obsolete
--target=score-elf CFLAGS="-g -O2 -fsanitize=address,undefined -Wno-error"
CXXLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" LDFLAGS="-ldl"
Target: score-elf
PASS: gas/score/br
Executing on host: sh -c {../as-new    -o tmpdir/b.o
/home/mliska/Programming/binutils/gas/testsuite/gas/score/b.s 2>&1}  /dev/null
dump.tmp (timeout = 300)
/home/mliska/Programming/binutils/gas/config/tc-score7.c:6724:72: runtime
error: left shift of negative value -12

--------------------------------------------------------------------------------
UBSAN error: gas/config/tc-score.c:7191:72: 
The following fails when I build binutils with:
configure --build=x86_64-linux --disable-nls --disable-gdb --disable-gdbserver
--disable-sim --disable-readline --disable-libdecnumber --enable-obsolete
--target=score-elf CFLAGS="-g -O2 -fsanitize=address,undefined -Wno-error"
CXXLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" LDFLAGS="-ldl"
Target: score-elf
PASS: gas/score/bit_32
Executing on host: sh -c {../as-new  -march=score3
-I/home/mliska/Programming/binutils/gas/testsuite/gas/score  -o
tmpdir/branch_32.o
/home/mliska/Programming/binutils/gas/testsuite/gas/score/branch_32.s 2>&1} 
/dev/null dump.tmp (timeout = 300)
/home/mliska/Programming/binutils/gas/config/tc-score.c:7191:72: runtime error:
left shift of negative value -8

--------------------------------------------------------------------------------
UBSAN error: gas/config/tc-score.c:7219:72: 
The following fails when I build binutils with:
configure --build=x86_64-linux --disable-nls --disable-gdb --disable-gdbserver
--disable-sim --disable-readline --disable-libdecnumber --enable-obsolete
--target=score-elf CFLAGS="-g -O2 -fsanitize=address,undefined -Wno-error"
CXXLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" LDFLAGS="-ldl"
Target: score-elf
PASS: gas/score/bit_32
Executing on host: sh -c {../as-new  -march=score3
-I/home/mliska/Programming/binutils/gas/testsuite/gas/score  -o
tmpdir/branch_32.o
/home/mliska/Programming/binutils/gas/testsuite/gas/score/branch_32.s 2>&1} 
/dev/null dump.tmp (timeout = 300)
/home/mliska/Programming/binutils/gas/config/tc-score.c:7219:72: runtime error:
left shift of negative value -542

--------------------------------------------------------------------------------
UBSAN error: gas/config/tc-score.c:7273:72: 
The following fails when I build binutils with:
configure --build=x86_64-linux --disable-nls --disable-gdb --disable-gdbserver
--disable-sim --disable-readline --disable-libdecnumber --enable-obsolete
--target=score-elf CFLAGS="-g -O2 -fsanitize=address,undefined -Wno-error"
CXXLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" LDFLAGS="-ldl"
Target: score-elf
PASS: gas/score/bit_32
Executing on host: sh -c {../as-new  -march=score3
-I/home/mliska/Programming/binutils/gas/testsuite/gas/score  -o
tmpdir/branch_32.o
/home/mliska/Programming/binutils/gas/testsuite/gas/score/branch_32.s 2>&1} 
/dev/null dump.tmp (timeout = 300)
/home/mliska/Programming/binutils/gas/config/tc-score.c:7273:72: runtime error:
left shift of negative value -530

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