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authorDimitry Andric <dim@FreeBSD.org>2017-05-29 16:25:25 +0000
committerDimitry Andric <dim@FreeBSD.org>2017-05-29 16:25:25 +0000
commitab44ce3d598882e51a25eb82eb7ae6308de85ae6 (patch)
tree568d786a59d49bef961dcb9bd09d422701b9da5b /lib/Support/ConvertUTF.cpp
parentb5630dbadf9a2a06754194387d6b0fd9962a67f1 (diff)
Notes
Diffstat (limited to 'lib/Support/ConvertUTF.cpp')
-rw-r--r--lib/Support/ConvertUTF.cpp31
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/Support/ConvertUTF.cpp b/lib/Support/ConvertUTF.cpp
index 39fd218d3f071..aa9507c189eda 100644
--- a/lib/Support/ConvertUTF.cpp
+++ b/lib/Support/ConvertUTF.cpp
@@ -53,6 +53,35 @@
#endif
#include <assert.h>
+
+/*
+ * This code extensively uses fall-through switches.
+ * Keep the compiler from warning about that.
+ */
+#if defined(__clang__) && defined(__has_warning)
+# if __has_warning("-Wimplicit-fallthrough")
+# define ConvertUTF_DISABLE_WARNINGS \
+ _Pragma("clang diagnostic push") \
+ _Pragma("clang diagnostic ignored \"-Wimplicit-fallthrough\"")
+# define ConvertUTF_RESTORE_WARNINGS \
+ _Pragma("clang diagnostic pop")
+# endif
+#elif defined(__GNUC__) && __GNUC__ > 6
+# define ConvertUTF_DISABLE_WARNINGS \
+ _Pragma("GCC diagnostic push") \
+ _Pragma("GCC diagnostic ignored \"-Wimplicit-fallthrough\"")
+# define ConvertUTF_RESTORE_WARNINGS \
+ _Pragma("GCC diagnostic pop")
+#endif
+#ifndef ConvertUTF_DISABLE_WARNINGS
+# define ConvertUTF_DISABLE_WARNINGS
+#endif
+#ifndef ConvertUTF_RESTORE_WARNINGS
+# define ConvertUTF_RESTORE_WARNINGS
+#endif
+
+ConvertUTF_DISABLE_WARNINGS
+
namespace llvm {
static const int halfShift = 10; /* used for shifting by 10 bits */
@@ -708,3 +737,5 @@ ConversionResult ConvertUTF8toUTF32(const UTF8 **sourceStart,
--------------------------------------------------------------------- */
} // namespace llvm
+
+ConvertUTF_RESTORE_WARNINGS