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[Bug binutils/26438] New: UBSAN error: gas/config/tc-cr16.c:1962:7:


From: mliska at suse dot cz
Subject: [Bug binutils/26438] New: UBSAN error: gas/config/tc-cr16.c:1962:7:
Date: Thu, 20 Aug 2020 12:19:36 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=26438

            Bug ID: 26438
           Summary: UBSAN error: gas/config/tc-cr16.c:1962:7:
           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=cr16-elf CFLAGS="-g -O2 -fsanitize=address,undefined -Wno-error"
CXXLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" LDFLAGS="-ldl"
Target: cr16-elf
FAIL: beq0_test
Executing on host: sh -c {../as-new    -o tmpdir/cbitb_test.o
/home/mliska/Programming/binutils/gas/testsuite/gas/cr16/cbitb_test.s 2>&1} 
/dev/null dump.tmp (timeout = 300)
/home/mliska/Programming/binutils/gas/config/tc-cr16.c:1962:7: runtime error:
shift exponent 32 is too large for 32-bit type 'int'

--------------------------------------------------------------------------------
UBSAN error: gas/config/tc-cr16.c:1968:9: 
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=cr16-elf CFLAGS="-g -O2 -fsanitize=address,undefined -Wno-error"
CXXLAGS="-g -O2 -fsanitize=address,undefined -Wno-error" LDFLAGS="-ldl"
Target: cr16-elf
FAIL: beq0_test
Executing on host: sh -c {../as-new    -o tmpdir/cbitb_test.o
/home/mliska/Programming/binutils/gas/testsuite/gas/cr16/cbitb_test.s 2>&1} 
/dev/null dump.tmp (timeout = 300)
/home/mliska/Programming/binutils/gas/config/tc-cr16.c:1968:9: runtime error:
shift exponent 32 is too large for 32-bit type 'int'

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