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[Bug driver/63837] [5 Regression] r217391 causes kernel build errors with GCC_COMPARE_DEBUG=1
- From: "trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 13 Nov 2014 09:56:55 +0000
- Subject: [Bug driver/63837] [5 Regression] r217391 causes kernel build errors with GCC_COMPARE_DEBUG=1
- Auto-submitted: auto-generated
- References: <bug-63837-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63837
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
--- Comment #5 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Here's a testcase:
markus@x4 tmp % GCC_COMPARE_DEBUG=1 gcc -Wpointer-sign -c -x c /dev/null
cc1: fatal error: input file â/dev/nullâ is the same as output file
compilation terminated.
gcc: error: during -fcompare-debug recompilation
markus@x4 tmp % GCC_COMPARE_DEBUG=0 gcc -Wpointer-sign -c -x c /dev/null
(4.9 is fine)
markus@x4 tmp % GCC_COMPARE_DEBUG=1 gcc -Wpointer-sign -c -x c /dev/null
markus@x4 tmp %