base, sim, arch: Fix clang 5.0 warnings

Compiling gem5 with recent version of clang (4 and 5) triggers
warnings that are treated as errors:

  * Global templatized static functions result in a warning if they
    are not used. These should either be declared as static inline or
    without the static identifier to avoid the warning.

  * Some templatized classes contain static variables. The
    instantiated versions of these variables / templates need to be
    explicitly declared to avoid a compiler warning.

Change-Id: Ie8261144836e94ebab7ea04ccccb90927672c257
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/3420
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/src/arch/hsail/insts/decl.hh b/src/arch/hsail/insts/decl.hh
index f84cb61e9..3132a425a 100644
--- a/src/arch/hsail/insts/decl.hh
+++ b/src/arch/hsail/insts/decl.hh
@@ -1272,6 +1272,27 @@ namespace HsailISA
 
     template<typename T> T heynot(T arg) { return ~arg; }
     template<> inline bool heynot<bool>(bool arg) { return !arg; }
+
+
+    /* Explicitly declare template static member variables to avoid
+     * warnings in some clang versions
+     */
+    template<> const char *B1::label;
+    template<> const char *B8::label;
+    template<> const char *B16::label;
+    template<> const char *B32::label;
+    template<> const char *B64::label;
+    template<> const char *S8::label;
+    template<> const char *S16::label;
+    template<> const char *S32::label;
+    template<> const char *S64::label;
+    template<> const char *U8::label;
+    template<> const char *U16::label;
+    template<> const char *U32::label;
+    template<> const char *U64::label;
+    template<> const char *F32::label;
+    template<> const char *F64::label;
+
 } // namespace HsailISA
 
 #endif // __ARCH_HSAIL_INSTS_DECL_HH__