[Bug bootstrap/104135] New: [12 Regression] -Werror=format-diag breaks rtl checking bootstrap

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104135

            Bug ID: 104135
           Summary: [12 Regression] -Werror=format-diag breaks rtl
                    checking bootstrap
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
  Target Milestone: ---

>From what I can see, the errors were before it was turned into error:
        ../../gcc/emit-rtl.cc:4000:25: warning: unquoted identifier or keyword
‘emit_insn’ in format [-Wformat-diag]
        ../../gcc/emit-rtl.cc:4000:46: warning: unquoted identifier or keyword
‘emit_jump_insn’ in format [-Wformat-diag]
        ../../gcc/emit-rtl.cc:4000:68: warning: unquoted whitespace character
‘\x0a’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:888:42: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:888:53: warning: unterminated quote character ‘'’ in
format [-Wformat-diag]
        ../../gcc/rtl.cc:898:50: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:898:61: warning: unterminated quote character ‘'’ in
format [-Wformat-diag]
        ../../gcc/rtl.cc:907:48: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:907:59: warning: unterminated quote character ‘'’ in
format [-Wformat-diag]
        ../../gcc/rtl.cc:917:43: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:917:54: warning: unterminated quote character ‘'’ in
format [-Wformat-diag]
        ../../gcc/rtl.cc:928:35: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:928:49: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/emit-rtl.cc:4000:25: warning: unquoted identifier or keyword
‘emit_insn’ in format [-Wformat-diag]
        ../../gcc/emit-rtl.cc:4000:46: warning: unquoted identifier or keyword
‘emit_jump_insn’ in format [-Wformat-diag]
        ../../gcc/emit-rtl.cc:4000:68: warning: unquoted whitespace character
‘\x0a’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:888:42: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:888:53: warning: unterminated quote character ‘'’ in
format [-Wformat-diag]
        ../../gcc/rtl.cc:898:50: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:898:61: warning: unterminated quote character ‘'’ in
format [-Wformat-diag]
        ../../gcc/rtl.cc:907:48: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:907:59: warning: unterminated quote character ‘'’ in
format [-Wformat-diag]
        ../../gcc/rtl.cc:917:43: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:917:54: warning: unterminated quote character ‘'’ in
format [-Wformat-diag]
        ../../gcc/rtl.cc:928:35: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
        ../../gcc/rtl.cc:928:49: warning: unquoted sequence of 2 consecutive
punctuation characters ‘',’ in format [-Wformat-diag]
but now it fails the bootstrap.
../configure --enable-languages=default,ada,obj-c++,lto,go,d
--enable-checking=yes,rtl,extra --enable-libstdcxx-backtrace=yes
is what I'm using on x86_64-linux.