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sat-arithmetic: add operator support

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- adds initial support for the operators +|, -|, *|, <<|, +|=, -|=, *|=, <<|=
- uses operators in addition to builtins in behavior test
- adds binOpExt() and assignBinOpExt() to AstGen.zig. these need to be audited
This commit is contained in:
Travis Staloch
2021-09-02 13:50:24 -07:00
committed by Andrew Kelley
parent 79bc5891c1
commit 29f41896ed
21 changed files with 556 additions and 54 deletions
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12
src/codegen.zig
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@@ -826,10 +826,13 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
// zig fmt: off
.add, .ptr_add => try self.airAdd(inst),
.addwrap => try self.airAddWrap(inst),
.addsat => try self.airArithmeticOpSat(inst, "addsat"),
.sub, .ptr_sub => try self.airSub(inst),
.subwrap => try self.airSubWrap(inst),
.subsat => try self.airArithmeticOpSat(inst, "subsat"),
.mul => try self.airMul(inst),
.mulwrap => try self.airMulWrap(inst),
.mulsat => try self.airArithmeticOpSat(inst, "mulsat"),
.div => try self.airDiv(inst),
.rem => try self.airRem(inst),
.mod => try self.airMod(inst),
@@ -848,6 +851,7 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
.xor => try self.airXor(inst),
.shr => try self.airShr(inst),
.shl => try self.airShl(inst),
.shl_sat => try self.airArithmeticOpSat(inst, "shl_sat"),
.alloc => try self.airAlloc(inst),
.arg => try self.airArg(inst),
@@ -1320,6 +1324,14 @@ fn Function(comptime arch: std.Target.Cpu.Arch) type {
return self.finishAir(inst, result, .{ bin_op.lhs, bin_op.rhs, .none });
}
fn airArithmeticOpSat(self: *Self, inst: Air.Inst.Index, comptime name: []const u8) !void {
const bin_op = self.air.instructions.items(.data)[inst].bin_op;
const result: MCValue = if (self.liveness.isUnused(inst)) .dead else switch (arch) {
else => return self.fail("TODO implement " ++ name ++ " for {}", .{self.target.cpu.arch}),
};
return self.finishAir(inst, result, .{ bin_op.lhs, bin_op.rhs, .none });
}
fn airMul(self: *Self, inst: Air.Inst.Index) !void {
const bin_op = self.air.instructions.items(.data)[inst].bin_op;
const result: MCValue = if (self.liveness.isUnused(inst)) .dead else switch (arch) {