From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: philmd@redhat.com, Thomas Huth <thuth@redhat.com>,
alex.bennee@linaro.org
Subject: [PATCH v4 4/6] configure: Disable -Wtautological-type-limit-compare
Date: Wed, 17 Jun 2020 13:13:07 -0700 [thread overview]
Message-ID: <20200617201309.1640952-5-richard.henderson@linaro.org> (raw)
In-Reply-To: <20200617201309.1640952-1-richard.henderson@linaro.org>
Clang 10 enables this by default with -Wtype-limit.
All of the instances flagged by this Werror so far have been
cases in which we really do want the compiler to optimize away
the test completely. Disabling the warning will avoid having
to add ifdefs to work around this.
Cc: Eric Blake <eblake@redhat.com>
Buglink: https://bugs.launchpad.net/qemu/+bug/1878628
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
configure | 1 +
1 file changed, 1 insertion(+)
diff --git a/configure b/configure
index a8bef95282..5e27229f58 100755
--- a/configure
+++ b/configure
@@ -2054,6 +2054,7 @@ add_to nowarn_flags -Wno-missing-include-dirs
add_to nowarn_flags -Wno-shift-negative-value
add_to nowarn_flags -Wno-string-plus-int
add_to nowarn_flags -Wno-typedef-redefinition
+add_to nowarn_flags -Wno-tautological-type-limit-compare
gcc_flags="$warn_flags $nowarn_flags"
--
2.25.1
next prev parent reply other threads:[~2020-06-17 20:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-17 20:13 [PATCH v4 0/6] Vs clang-10 and gcc-9 warnings Richard Henderson
2020-06-17 20:13 ` [PATCH v4 1/6] fpu/softfloat: Silence 'bitwise negation of boolean expression' warning Richard Henderson
2020-06-17 20:13 ` [PATCH v4 2/6] migration: fix xbzrle encoding rate calculation Richard Henderson
2020-06-17 20:13 ` [PATCH v4 3/6] configure: Clean up warning flag lists Richard Henderson
2020-06-17 20:13 ` Richard Henderson [this message]
2020-06-17 20:13 ` [PATCH v4 5/6] configure: Add -Wno-psabi Richard Henderson
2020-06-17 20:13 ` [PATCH v4 6/6] qht: Fix threshold rate calculation Richard Henderson
2020-06-17 20:58 ` Richard Henderson
2020-06-19 17:31 ` Peter Maydell
2020-06-18 10:22 ` [PATCH v4 0/6] Vs clang-10 and gcc-9 warnings Peter Maydell
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