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Merge pull request #11143 from jmc-88/cbe
CBE: Implement popCount, byteSwap, bitReverse for ints <= 128 bits
This commit is contained in:
Andrew Kelley
GitHub
commit
84f96779c3
@ -842,7 +842,8 @@ pub const DeclGen = struct {
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var index: usize = 0;
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var params_written: usize = 0;
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while (index < param_len) : (index += 1) {
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if (dg.decl.ty.fnParamType(index).zigTypeTag() == .Void) continue;
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const param_type = dg.decl.ty.fnParamType(index);
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if (!param_type.hasRuntimeBitsIgnoreComptime()) continue;
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if (params_written > 0) {
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try w.writeAll(", ");
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}
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@ -882,7 +883,7 @@ pub const DeclGen = struct {
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var params_written: usize = 0;
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var index: usize = 0;
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while (index < param_len) : (index += 1) {
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if (fn_info.param_types[index].zigTypeTag() == .Void) continue;
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if (!fn_info.param_types[index].hasRuntimeBitsIgnoreComptime()) continue;
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if (params_written > 0) {
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try bw.writeAll(", ");
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}
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@ -1708,8 +1709,8 @@ fn genBody(f: *Function, body: []const Air.Inst.Index) error{ AnalysisFail, OutO
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.memcpy => try airMemcpy(f, inst),
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.set_union_tag => try airSetUnionTag(f, inst),
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.get_union_tag => try airGetUnionTag(f, inst),
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.clz => try airCountZeroes(f, inst, "clz"),
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.ctz => try airCountZeroes(f, inst, "ctz"),
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.clz => try airBuiltinCall(f, inst, "clz"),
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.ctz => try airBuiltinCall(f, inst, "ctz"),
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.popcount => try airBuiltinCall(f, inst, "popcount"),
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.byte_swap => try airBuiltinCall(f, inst, "byte_swap"),
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.bit_reverse => try airBuiltinCall(f, inst, "bit_reverse"),
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@ -2625,8 +2626,11 @@ fn airCall(
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}
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try writer.writeAll("(");
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for (args) |arg, i| {
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if (i != 0) {
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var args_written: usize = 0;
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for (args) |arg| {
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const ty = f.air.typeOf(arg);
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if (!ty.hasRuntimeBitsIgnoreComptime()) continue;
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if (args_written != 0) {
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try writer.writeAll(", ");
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}
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if (f.air.value(arg)) |val| {
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@ -2635,6 +2639,7 @@ fn airCall(
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const val = try f.resolveInst(arg);
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try f.writeCValue(writer, val);
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}
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args_written += 1;
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}
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try writer.writeAll(");\n");
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return result_local;
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@ -3349,23 +3354,6 @@ fn airPtrToInt(f: *Function, inst: Air.Inst.Index) !CValue {
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fn airBuiltinCall(f: *Function, inst: Air.Inst.Index, fn_name: [*:0]const u8) !CValue {
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if (f.liveness.isUnused(inst)) return CValue.none;
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const inst_ty = f.air.typeOfIndex(inst);
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const local = try f.allocLocal(inst_ty, .Const);
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const ty_op = f.air.instructions.items(.data)[inst].ty_op;
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const writer = f.object.writer();
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const operand = try f.resolveInst(ty_op.operand);
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// TODO implement the function in zig.h and call it here
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try writer.print(" = {s}(", .{fn_name});
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try f.writeCValue(writer, operand);
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try writer.writeAll(");\n");
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return local;
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}
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fn airCountZeroes(f: *Function, inst: Air.Inst.Index, fn_name: [*:0]const u8) !CValue {
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if (f.liveness.isUnused(inst)) return CValue.none;
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const inst_ty = f.air.typeOfIndex(inst);
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const local = try f.allocLocal(inst_ty, .Const);
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const operand = f.air.instructions.items(.data)[inst].ty_op.operand;
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@ -3373,13 +3361,18 @@ fn airCountZeroes(f: *Function, inst: Air.Inst.Index, fn_name: [*:0]const u8) !C
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const target = f.object.dg.module.getTarget();
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const writer = f.object.writer();
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const zig_bits = operand_ty.intInfo(target).bits;
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_ = toCIntBits(zig_bits) orelse
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const int_info = operand_ty.intInfo(target);
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const c_bits = toCIntBits(int_info.bits) orelse
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return f.fail("TODO: C backend: implement integer types larger than 128 bits", .{});
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try writer.print(" = zig_{s}(", .{fn_name});
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try writer.print(" = zig_{s}_", .{fn_name});
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const prefix_byte: u8 = switch (int_info.signedness) {
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.signed => 'i',
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.unsigned => 'u',
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};
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try writer.print("{c}{d}(", .{ prefix_byte, c_bits });
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try f.writeCValue(writer, try f.resolveInst(operand));
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try writer.print(", {d});\n", .{zig_bits});
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try writer.print(", {d});\n", .{int_info.bits});
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return local;
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}
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250
src/link/C/zig.h
250
src/link/C/zig.h
@ -502,19 +502,249 @@ zig_shl_sat_s(int, int, ((sizeof(int )) * CHAR_BIT - 1))
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zig_shl_sat_s(long, long, ((sizeof(long )) * CHAR_BIT - 1))
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#define zig_bitsizeof(T) (CHAR_BIT * sizeof(T))
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#define zig_bit_mask(T, bit_width) \
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((bit_width) == zig_bitsizeof(T) \
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? ((T)-1) \
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: (((T)1 << (T)(bit_width)) - 1))
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static inline int zig_clz(uint64_t value, uint8_t zig_type_bit_width) {
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static inline int zig_clz(unsigned int value, uint8_t zig_type_bit_width) {
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if (value == 0) return zig_type_bit_width;
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if (zig_type_bit_width <= zig_bitsizeof(unsigned int))
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return (__builtin_clz(value) - zig_bitsizeof(unsigned int) + zig_type_bit_width);
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if (zig_type_bit_width <= zig_bitsizeof(unsigned long))
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return (__builtin_clzl(value) - zig_bitsizeof(unsigned long) + zig_type_bit_width);
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return (__builtin_clzll(value) - zig_bitsizeof(unsigned long long) + zig_type_bit_width);
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return __builtin_clz(value) - zig_bitsizeof(unsigned int) + zig_type_bit_width;
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}
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static inline int zig_ctz(uint64_t value, uint8_t zig_type_bit_width) {
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static inline int zig_clzl(unsigned long value, uint8_t zig_type_bit_width) {
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if (value == 0) return zig_type_bit_width;
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if (zig_type_bit_width <= zig_bitsizeof(unsigned int)) return __builtin_ctz(value);
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if (zig_type_bit_width <= zig_bitsizeof(unsigned long)) return __builtin_ctzl(value);
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return __builtin_ctzll(value);
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return __builtin_clzl(value) - zig_bitsizeof(unsigned long) + zig_type_bit_width;
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}
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static inline int zig_clzll(unsigned long long value, uint8_t zig_type_bit_width) {
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if (value == 0) return zig_type_bit_width;
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return __builtin_clzll(value) - zig_bitsizeof(unsigned long long) + zig_type_bit_width;
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}
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#define zig_clz_u8 zig_clz
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#define zig_clz_i8 zig_clz
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#define zig_clz_u16 zig_clz
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#define zig_clz_i16 zig_clz
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#define zig_clz_u32 zig_clzl
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#define zig_clz_i32 zig_clzl
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#define zig_clz_u64 zig_clzll
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#define zig_clz_i64 zig_clzll
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static inline int zig_clz_u128(uint128_t value, uint8_t zig_type_bit_width) {
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if (value == 0) return zig_type_bit_width;
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const uint128_t mask = zig_bit_mask(uint128_t, zig_type_bit_width);
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const uint64_t hi = (value & mask) >> 64;
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const uint64_t lo = (value & mask);
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const int leading_zeroes = (
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hi != 0 ? __builtin_clzll(hi) : 64 + (lo != 0 ? __builtin_clzll(lo) : 64));
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return leading_zeroes - zig_bitsizeof(uint128_t) + zig_type_bit_width;
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}
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#define zig_clz_i128 zig_clz_u128
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static inline int zig_ctz(unsigned int value, uint8_t zig_type_bit_width) {
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if (value == 0) return zig_type_bit_width;
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return __builtin_ctz(value & zig_bit_mask(unsigned int, zig_type_bit_width));
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}
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static inline int zig_ctzl(unsigned long value, uint8_t zig_type_bit_width) {
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if (value == 0) return zig_type_bit_width;
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return __builtin_ctzl(value & zig_bit_mask(unsigned long, zig_type_bit_width));
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}
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static inline int zig_ctzll(unsigned long value, uint8_t zig_type_bit_width) {
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if (value == 0) return zig_type_bit_width;
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return __builtin_ctzll(value & zig_bit_mask(unsigned long, zig_type_bit_width));
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}
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#define zig_ctz_u8 zig_ctz
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#define zig_ctz_i8 zig_ctz
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#define zig_ctz_u16 zig_ctz
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#define zig_ctz_i16 zig_ctz
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#define zig_ctz_u32 zig_ctzl
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#define zig_ctz_i32 zig_ctzl
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#define zig_ctz_u64 zig_ctzll
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#define zig_ctz_i64 zig_ctzll
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static inline int zig_ctz_u128(uint128_t value, uint8_t zig_type_bit_width) {
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const uint128_t mask = zig_bit_mask(uint128_t, zig_type_bit_width);
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const uint64_t hi = (value & mask) >> 64;
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const uint64_t lo = (value & mask);
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return (lo != 0 ? __builtin_ctzll(lo) : 64 + (hi != 0 ? __builtin_ctzll(hi) : 64));
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}
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#define zig_ctz_i128 zig_ctz_u128
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static inline int zig_popcount(unsigned int value, uint8_t zig_type_bit_width) {
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return __builtin_popcount(value & zig_bit_mask(unsigned int, zig_type_bit_width));
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}
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static inline int zig_popcountl(unsigned long value, uint8_t zig_type_bit_width) {
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return __builtin_popcountl(value & zig_bit_mask(unsigned long, zig_type_bit_width));
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}
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static inline int zig_popcountll(unsigned long value, uint8_t zig_type_bit_width) {
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return __builtin_popcountll(value & zig_bit_mask(unsigned long, zig_type_bit_width));
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}
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#define zig_popcount_u8 zig_popcount
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#define zig_popcount_i8 zig_popcount
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#define zig_popcount_u16 zig_popcount
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#define zig_popcount_i16 zig_popcount
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#define zig_popcount_u32 zig_popcountl
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#define zig_popcount_i32 zig_popcountl
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#define zig_popcount_u64 zig_popcountll
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#define zig_popcount_i64 zig_popcountll
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static inline int zig_popcount_u128(uint128_t value, uint8_t zig_type_bit_width) {
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const uint128_t mask = zig_bit_mask(uint128_t, zig_type_bit_width);
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const uint64_t hi = (value & mask) >> 64;
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const uint64_t lo = (value & mask);
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return __builtin_popcountll(hi) + __builtin_popcountll(lo);
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}
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#define zig_popcount_i128 zig_popcount_u128
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#define zig_sign_extend(T) \
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static inline T zig_sign_extend_##T(T value, uint8_t zig_type_bit_width) { \
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const T m = (T)1 << (T)(zig_type_bit_width - 1); \
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return (value ^ m) - m; \
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}
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zig_sign_extend(uint8_t)
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zig_sign_extend(uint16_t)
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zig_sign_extend(uint32_t)
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zig_sign_extend(uint64_t)
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zig_sign_extend(uint128_t)
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#define zig_byte_swap_u(ZigTypeBits, CTypeBits) \
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static inline uint##CTypeBits##_t zig_byte_swap_u##ZigTypeBits(uint##CTypeBits##_t value, uint8_t zig_type_bit_width) { \
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return __builtin_bswap##CTypeBits(value) >> (CTypeBits - zig_type_bit_width); \
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}
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#define zig_byte_swap_s(ZigTypeBits, CTypeBits) \
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static inline int##CTypeBits##_t zig_byte_swap_i##ZigTypeBits(int##CTypeBits##_t value, uint8_t zig_type_bit_width) { \
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const uint##CTypeBits##_t swapped = zig_byte_swap_u##ZigTypeBits(value, zig_type_bit_width); \
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return zig_sign_extend_uint##CTypeBits##_t(swapped, zig_type_bit_width); \
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}
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#define zig_byte_swap(ZigTypeBits, CTypeBits) \
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zig_byte_swap_u(ZigTypeBits, CTypeBits) \
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zig_byte_swap_s(ZigTypeBits, CTypeBits)
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zig_byte_swap( 8, 16)
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zig_byte_swap(16, 16)
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zig_byte_swap(32, 32)
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zig_byte_swap(64, 64)
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static inline uint128_t zig_byte_swap_u128(uint128_t value, uint8_t zig_type_bit_width) {
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const uint128_t mask = zig_bit_mask(uint128_t, zig_type_bit_width);
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const uint128_t hi = __builtin_bswap64((uint64_t)(value >> 64));
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const uint128_t lo = __builtin_bswap64((uint64_t)value);
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return (((lo << 64 | hi) >> (128 - zig_type_bit_width))) & mask;
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}
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zig_byte_swap_s(128, 128)
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static const uint8_t zig_bit_reverse_lut[256] = {
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0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0,
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0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
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0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04, 0x84, 0x44, 0xc4,
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0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
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0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 0x1c, 0x9c, 0x5c, 0xdc,
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0x3c, 0xbc, 0x7c, 0xfc, 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
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0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca,
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0x2a, 0xaa, 0x6a, 0xea, 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
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0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6,
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0x36, 0xb6, 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
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0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, 0x41, 0xc1,
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0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
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0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, 0x59, 0xd9,
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0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
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0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 0x0d, 0x8d, 0x4d, 0xcd,
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0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
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0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3,
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0x33, 0xb3, 0x73, 0xf3, 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
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0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7,
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0x27, 0xa7, 0x67, 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
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0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf,
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0x3f, 0xbf, 0x7f, 0xff
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};
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static inline uint8_t zig_bit_reverse_u8(uint8_t value, uint8_t zig_type_bit_width) {
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const uint8_t reversed = zig_bit_reverse_lut[value] >> (8 - zig_type_bit_width);
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return zig_sign_extend_uint8_t(reversed, zig_type_bit_width);
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}
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#define zig_bit_reverse_i8 zig_bit_reverse_u8
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static inline uint16_t zig_bit_reverse_u16(uint16_t value, uint8_t zig_type_bit_width) {
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const uint16_t swapped = zig_byte_swap_u16(value, zig_type_bit_width);
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const uint16_t reversed = (
|
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((uint16_t)zig_bit_reverse_lut[(swapped >> 0x08) & 0xff] << 0x08) |
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((uint16_t)zig_bit_reverse_lut[(swapped >> 0x00) & 0xff] << 0x00));
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return zig_sign_extend_uint16_t(
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reversed & zig_bit_mask(uint16_t, zig_type_bit_width),
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zig_type_bit_width);
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}
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#define zig_bit_reverse_i16 zig_bit_reverse_u16
|
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|
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static inline uint32_t zig_bit_reverse_u32(uint32_t value, uint8_t zig_type_bit_width) {
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const uint32_t swapped = zig_byte_swap_u32(value, zig_type_bit_width);
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const uint32_t reversed = (
|
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((uint32_t)zig_bit_reverse_lut[(swapped >> 0x18) & 0xff] << 0x18) |
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((uint32_t)zig_bit_reverse_lut[(swapped >> 0x10) & 0xff] << 0x10) |
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((uint32_t)zig_bit_reverse_lut[(swapped >> 0x08) & 0xff] << 0x08) |
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((uint32_t)zig_bit_reverse_lut[(swapped >> 0x00) & 0xff] << 0x00));
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return zig_sign_extend_uint32_t(
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reversed & zig_bit_mask(uint32_t, zig_type_bit_width),
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zig_type_bit_width);
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}
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#define zig_bit_reverse_i32 zig_bit_reverse_u32
|
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static inline uint64_t zig_bit_reverse_u64(uint64_t value, uint8_t zig_type_bit_width) {
|
||||
const uint64_t swapped = zig_byte_swap_u64(value, zig_type_bit_width);
|
||||
const uint64_t reversed = (
|
||||
((uint64_t)zig_bit_reverse_lut[(swapped >> 0x38) & 0xff] << 0x38) |
|
||||
((uint64_t)zig_bit_reverse_lut[(swapped >> 0x30) & 0xff] << 0x30) |
|
||||
((uint64_t)zig_bit_reverse_lut[(swapped >> 0x28) & 0xff] << 0x28) |
|
||||
((uint64_t)zig_bit_reverse_lut[(swapped >> 0x20) & 0xff] << 0x20) |
|
||||
((uint64_t)zig_bit_reverse_lut[(swapped >> 0x18) & 0xff] << 0x18) |
|
||||
((uint64_t)zig_bit_reverse_lut[(swapped >> 0x10) & 0xff] << 0x10) |
|
||||
((uint64_t)zig_bit_reverse_lut[(swapped >> 0x08) & 0xff] << 0x08) |
|
||||
((uint64_t)zig_bit_reverse_lut[(swapped >> 0x00) & 0xff] << 0x00));
|
||||
return zig_sign_extend_uint64_t(
|
||||
reversed & zig_bit_mask(uint64_t, zig_type_bit_width),
|
||||
zig_type_bit_width);
|
||||
}
|
||||
|
||||
#define zig_bit_reverse_i64 zig_bit_reverse_u64
|
||||
|
||||
static inline uint128_t zig_bit_reverse_u128(uint128_t value, uint8_t zig_type_bit_width) {
|
||||
const uint128_t swapped = zig_byte_swap_u128(value, zig_type_bit_width);
|
||||
const uint128_t reversed = (
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x78) & 0xff] << 0x78) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x70) & 0xff] << 0x70) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x68) & 0xff] << 0x68) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x60) & 0xff] << 0x60) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x58) & 0xff] << 0x58) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x50) & 0xff] << 0x50) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x48) & 0xff] << 0x48) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x40) & 0xff] << 0x40) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x38) & 0xff] << 0x38) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x30) & 0xff] << 0x30) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x28) & 0xff] << 0x28) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x20) & 0xff] << 0x20) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x18) & 0xff] << 0x18) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x10) & 0xff] << 0x10) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x08) & 0xff] << 0x08) |
|
||||
((uint128_t)zig_bit_reverse_lut[(swapped >> 0x00) & 0xff] << 0x00));
|
||||
return zig_sign_extend_uint128_t(
|
||||
reversed & zig_bit_mask(uint128_t, zig_type_bit_width),
|
||||
zig_type_bit_width);
|
||||
}
|
||||
|
||||
#define zig_bit_reverse_i128 zig_bit_reverse_u128
|
||||
|
||||
@ -139,6 +139,7 @@ test {
|
||||
_ = @import("behavior/eval.zig");
|
||||
_ = @import("behavior/export_self_referential_type_info.zig");
|
||||
_ = @import("behavior/int128.zig");
|
||||
_ = @import("behavior/popcount.zig");
|
||||
_ = @import("behavior/translate_c_macros.zig");
|
||||
_ = @import("behavior/union_with_members.zig");
|
||||
|
||||
@ -147,7 +148,6 @@ test {
|
||||
_ = @import("behavior/atomics.zig");
|
||||
_ = @import("behavior/export.zig");
|
||||
_ = @import("behavior/maximum_minimum.zig");
|
||||
_ = @import("behavior/popcount.zig");
|
||||
_ = @import("behavior/saturating_arithmetic.zig");
|
||||
_ = @import("behavior/widening.zig");
|
||||
_ = @import("behavior/bugs/2114.zig");
|
||||
|
||||
@ -5,7 +5,6 @@ const minInt = std.math.minInt;
|
||||
|
||||
test "@bitReverse large exotic integer" {
|
||||
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_c) return error.SkipZigTest;
|
||||
// Currently failing on stage1 for big-endian targets
|
||||
if (builtin.zig_backend == .stage1) return error.SkipZigTest;
|
||||
|
||||
@ -14,7 +13,6 @@ test "@bitReverse large exotic integer" {
|
||||
|
||||
test "@bitReverse" {
|
||||
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_c) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
|
||||
|
||||
@ -4,7 +4,6 @@ const expect = std.testing.expect;
|
||||
|
||||
test "@byteSwap integers" {
|
||||
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_c) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
|
||||
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
|
||||
|
||||
@ -81,7 +81,6 @@ test "@clz big ints" {
|
||||
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
|
||||
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
|
||||
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
|
||||
if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
|
||||
|
||||
try testClzBigInts();
|
||||
comptime try testClzBigInts();
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
const builtin = @import("builtin");
|
||||
const std = @import("std");
|
||||
const expect = std.testing.expect;
|
||||
const expectEqual = std.testing.expectEqual;
|
||||
@ -36,6 +37,10 @@ fn testPopCountIntegers() !void {
|
||||
var x: i8 = -120;
|
||||
try expect(@popCount(i8, x) == 2);
|
||||
}
|
||||
{
|
||||
var x: u128 = 0b11111111000110001100010000100001000011000011100101010001;
|
||||
try expect(@popCount(u128, x) == 24);
|
||||
}
|
||||
comptime {
|
||||
try expect(@popCount(u8, @bitCast(u8, @as(i8, -120))) == 2);
|
||||
}
|
||||
@ -45,6 +50,8 @@ fn testPopCountIntegers() !void {
|
||||
}
|
||||
|
||||
test "@popCount vectors" {
|
||||
if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
|
||||
|
||||
comptime try testPopCountVectors();
|
||||
try testPopCountVectors();
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user