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get rid of using __builtin_unreachable directly [Bug #17787]

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As it is an independent feature from `clz`, `ctz` and `popcount`,
it might be unavailable even if the latters are built in.
This commit is contained in:
Nobuyoshi Nakada 2021-04-09 13:52:13 +09:00
parent 6c7d39aabe
commit 3a3033c138
Notes: git 2021-04-10 16:05:24 +09:00 
Merged: https://github.com/ruby/ruby/pull/4372
1 changed files with 3 additions and 3 deletions
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6
internal/bits.h
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@ -284,7 +284,7 @@ nlz_int64(uint64_t x)
}
else {
/* :FIXME: Is there a way to make this branch a compile-time error? */
__builtin_unreachable();
UNREACHABLE_RETURN(~0);
}
#else
@ -419,7 +419,7 @@ rb_popcount64(uint64_t x)
}
else {
/* :FIXME: Is there a way to make this branch a compile-time error? */
__builtin_unreachable();
UNREACHABLE_RETURN(~0);
}
#else
@ -492,7 +492,7 @@ ntz_int64(uint64_t x)
}
else {
/* :FIXME: Is there a way to make this branch a compile-time error? */
__builtin_unreachable();
UNREACHABLE_RETURN(~0);
}
#else