Skip to content

[clang][bytecode] Implement __builtin_reduce_xor #118299

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Dec 2, 2024
Merged

[clang][bytecode] Implement __builtin_reduce_xor #118299

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 3 additions & 0 deletions clang/lib/AST/ByteCode/InterpBuiltin.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1730,6 +1730,8 @@ static bool interp__builtin_vector_reduce(InterpState &S, CodePtr OpPC,
(void)T::bitAnd(Result, Elem, BitWidth, &Result);
} else if (ID == Builtin::BI__builtin_reduce_or) {
(void)T::bitOr(Result, Elem, BitWidth, &Result);
} else if (ID == Builtin::BI__builtin_reduce_xor) {
(void)T::bitXor(Result, Elem, BitWidth, &Result);
} else {
llvm_unreachable("Unhandled vector reduce builtin");
}
Expand Down Expand Up @@ -2215,6 +2217,7 @@ bool InterpretBuiltin(InterpState &S, CodePtr OpPC, const Function *F,
case Builtin::BI__builtin_reduce_mul:
case Builtin::BI__builtin_reduce_and:
case Builtin::BI__builtin_reduce_or:
case Builtin::BI__builtin_reduce_xor:
if (!interp__builtin_vector_reduce(S, OpPC, Frame, F, Call))
return false;
break;
Expand Down
12 changes: 12 additions & 0 deletions clang/test/AST/ByteCode/builtin-functions.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1096,6 +1096,18 @@ namespace ReduceOr {
#endif
}

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

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