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CBE: fix reduce of emulated integers

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This commit is contained in:
Jacob Young 2023-03-05 06:32:23 -05:00
parent 7352d461cf
commit 1efd36cd5c
1 changed files with 29 additions and 17 deletions
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46
src/codegen/c.zig
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@ -6672,33 +6672,43 @@ fn airReduce(f: *Function, inst: Air.Inst.Index) !CValue {
const operand_ty = f.air.typeOf(reduce.operand);
const writer = f.object.writer();
const use_operator = scalar_ty.bitSize(target) <= 64;
const op: union(enum) {
float_op: []const u8,
builtin: []const u8,
const Func = struct { operation: []const u8, info: BuiltinInfo = .none };
float_op: Func,
builtin: Func,
infix: []const u8,
ternary: []const u8,
} = switch (reduce.operation) {
.And => .{ .infix = " &= " },
.Or => .{ .infix = " |= " },
.Xor => .{ .infix = " ^= " },
.And => if (use_operator) .{ .infix = " &= " } else .{ .builtin = .{ .operation = "and" } },
.Or => if (use_operator) .{ .infix = " |= " } else .{ .builtin = .{ .operation = "or" } },
.Xor => if (use_operator) .{ .infix = " ^= " } else .{ .builtin = .{ .operation = "xor" } },
.Min => switch (scalar_ty.zigTypeTag()) {
.Int => .{ .ternary = " < " },
.Float => .{ .float_op = "fmin" },
.Int => if (use_operator) .{ .ternary = " < " } else .{
.builtin = .{ .operation = "min" },
},
.Float => .{ .float_op = .{ .operation = "fmin" } },
else => unreachable,
},
.Max => switch (scalar_ty.zigTypeTag()) {
.Int => .{ .ternary = " > " },
.Float => .{ .float_op = "fmax" },
.Int => if (use_operator) .{ .ternary = " > " } else .{
.builtin = .{ .operation = "max" },
},
.Float => .{ .float_op = .{ .operation = "fmax" } },
else => unreachable,
},
.Add => switch (scalar_ty.zigTypeTag()) {
.Int => .{ .infix = " += " },
.Float => .{ .builtin = "add" },
.Int => if (use_operator) .{ .infix = " += " } else .{
.builtin = .{ .operation = "addw", .info = .bits },
},
.Float => .{ .builtin = .{ .operation = "add" } },
else => unreachable,
},
.Mul => switch (scalar_ty.zigTypeTag()) {
.Int => .{ .infix = " *= " },
.Float => .{ .builtin = "mul" },
.Int => if (use_operator) .{ .infix = " *= " } else .{
.builtin = .{ .operation = "mulw", .info = .bits },
},
.Float => .{ .builtin = .{ .operation = "mul" } },
else => unreachable,
},
};
@ -6762,24 +6772,26 @@ fn airReduce(f: *Function, inst: Air.Inst.Index) !CValue {
const v = try Vectorizer.start(f, inst, writer, operand_ty);
try f.writeCValue(writer, accum, .Other);
switch (op) {
.float_op => |operation| {
.float_op => |func| {
try writer.writeAll(" = zig_libc_name_");
try f.object.dg.renderTypeForBuiltinFnName(writer, scalar_ty);
try writer.print("({s})(", .{operation});
try writer.print("({s})(", .{func.operation});
try f.writeCValue(writer, accum, .FunctionArgument);
try writer.writeAll(", ");
try f.writeCValue(writer, operand, .Other);
try v.elem(f, writer);
try f.object.dg.renderBuiltinInfo(writer, scalar_ty, func.info);
try writer.writeByte(')');
},
.builtin => |operation| {
try writer.print(" = zig_{s}_", .{operation});
.builtin => |func| {
try writer.print(" = zig_{s}_", .{func.operation});
try f.object.dg.renderTypeForBuiltinFnName(writer, scalar_ty);
try writer.writeByte('(');
try f.writeCValue(writer, accum, .FunctionArgument);
try writer.writeAll(", ");
try f.writeCValue(writer, operand, .Other);
try v.elem(f, writer);
try f.object.dg.renderBuiltinInfo(writer, scalar_ty, func.info);
try writer.writeByte(')');
},
.infix => |ass| {