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[clang][bytecode] Implement __builtin_reduce_or #118292

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Merged
merged 1 commit into from
Dec 2, 2024
Merged

[clang][bytecode] Implement __builtin_reduce_or #118292

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7 changes: 6 additions & 1 deletion clang/lib/AST/ByteCode/InterpBuiltin.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,8 @@ template <typename T>
static void pushInteger(InterpState &S, T Val, QualType QT) {
if constexpr (std::is_same_v<T, APInt>)
pushInteger(S, APSInt(Val, !std::is_signed_v<T>), QT);
else if constexpr (std::is_same_v<T, APSInt>)
pushInteger(S, Val, QT);
else
pushInteger(S,
APSInt(APInt(sizeof(T) * 8, static_cast<uint64_t>(Val),
Expand Down Expand Up @@ -1726,11 +1728,13 @@ static bool interp__builtin_vector_reduce(InterpState &S, CodePtr OpPC,

} else if (ID == Builtin::BI__builtin_reduce_and) {
(void)T::bitAnd(Result, Elem, BitWidth, &Result);
} else if (ID == Builtin::BI__builtin_reduce_or) {
(void)T::bitOr(Result, Elem, BitWidth, &Result);
} else {
llvm_unreachable("Unhandled vector reduce builtin");
}
}
pushInteger(S, Result, Call->getType());
pushInteger(S, Result.toAPSInt(), Call->getType());
});

return true;
Expand Down Expand Up @@ -2210,6 +2214,7 @@ bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const Function *F,
case Builtin::BI__builtin_reduce_add:
case Builtin::BI__builtin_reduce_mul:
case Builtin::BI__builtin_reduce_and:
case Builtin::BI__builtin_reduce_or:
if (!interp__builtin_vector_reduce(S, OpPC, Frame, F, Call))
return false;
break;
Expand Down
16 changes: 16 additions & 0 deletions clang/test/AST/ByteCode/builtin-functions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1080,6 +1080,22 @@ namespace ReduceAnd {
#endif
}

namespace ReduceOr {
static_assert(__builtin_reduce_or((vector4char){}) == 0);
static_assert(__builtin_reduce_or((vector4char){(char)0x11, (char)0x22, (char)0x44, (char)0x88}) == (char)0xFF);
static_assert(__builtin_reduce_or((vector4short){(short)0x1111, (short)0x2222, (short)0x4444, (short)0x8888}) == (short)0xFFFF);
static_assert(__builtin_reduce_or((vector4int){(int)0x11111111, (int)0x22222222, (int)0x44444444, (int)0x88888888}) == (int)0xFFFFFFFF);
#if __INT_WIDTH__ == 32
static_assert(__builtin_reduce_or((vector4long){(long long)0x1111111111111111L, (long long)0x2222222222222222L, (long long)0x4444444444444444L, (long long)0x8888888888888888L}) == (long long)0xFFFFFFFFFFFFFFFFL);
static_assert(__builtin_reduce_or((vector4char){(char)0, (char)0x22, (char)0x44, (char)0x88}) == ~0x11);
static_assert(__builtin_reduce_or((vector4short){(short)0x1111, (short)0, (short)0x4444, (short)0x8888}) == ~0x2222);
static_assert(__builtin_reduce_or((vector4int){(int)0x11111111, (int)0x22222222, (int)0, (int)0x88888888}) == ~0x44444444);
static_assert(__builtin_reduce_or((vector4long){(long long)0x1111111111111111L, (long long)0x2222222222222222L, (long long)0x4444444444444444L, (long long)0}) == ~0x8888888888888888L);
static_assert(__builtin_reduce_or((vector4uint){0x11111111U, 0x22222222U, 0x44444444U, 0x88888888U}) == 0xFFFFFFFFU);
static_assert(__builtin_reduce_or((vector4ulong){0x1111111111111111UL, 0x2222222222222222UL, 0x4444444444444444UL, 0x8888888888888888UL}) == 0xFFFFFFFFFFFFFFFFL);
#endif
}

namespace BuiltinMemcpy {
constexpr int simple() {
int a = 12;
Expand Down