lang/v8/files/patch-include_v8config.h

   1 --- include/v8config.h.orig     2022-01-23 11:58:51 UTC
   2 +++ include/v8config.h
   3 @@ -342,7 +342,18 @@ path. Add it with -I<path> to the command line
   4  # define V8_HAS_CPP_ATTRIBUTE_NO_UNIQUE_ADDRESS \
   5      (V8_HAS_CPP_ATTRIBUTE(no_unique_address))
   6
   7 +// Work around Clang bug present in 9.0.1, at least.
   8 +//
   9 +// Clang stores alignment as a 32-bit unsigned integer, but V8 only uses
  10 +// V8_ASSUME_ALIGNED() for a 4GB (2^32) alignment
  11 +// (kPtrComprIsolateRootAlignment).  As such, the alignment overflows and
  12 +// becomes zero, triggering an internal Clang assertion that alignment must not
  13 +// be zero.
  14 +#if 0
  15  # define V8_HAS_BUILTIN_ASSUME_ALIGNED (__has_builtin(__builtin_assume_aligned))
  16 +#else
  17 +# define V8_HAS_BUILTIN_ASSUME_ALIGNED 0
  18 +#endif
  19  # define V8_HAS_BUILTIN_BSWAP16 (__has_builtin(__builtin_bswap16))
  20  # define V8_HAS_BUILTIN_BSWAP32 (__has_builtin(__builtin_bswap32))
  21  # define V8_HAS_BUILTIN_BSWAP64 (__has_builtin(__builtin_bswap64))