994d6498fc
`comptime_vm` exec now handles `bit_and`/`bit_or`/`bit_xor`/`bit_not`/`shl`/`shr` (a new `bitwise` helper next to `arith`), mirroring the legacy interp's i64 model exactly: the shift amount clamps to `@min(rhs, 63)` and `shr` is an arithmetic right shift (sign-extending). These were unported and bailed; the `shr` gap surfaced via the iOS-device bundler once P5.5 let it run further (1616). With the port, 1616's strict VM run reaches the real bundler logic and stops only at the genuinely-unavailable iOS runtime on macOS (`_UIApplicationMain` / no linked binary under `sx run`), as expected. New corpus test `examples/0639-comptime-bitwise-shift.sx` folds AND/OR/XOR/NOT/ shl/shr/arith-shr as `::` consts — identical on both evaluators. 704/0 both gates.
21 lines
794 B
Plaintext
21 lines
794 B
Plaintext
// Comptime bitwise + shift ops on the VM: AND/OR/XOR/NOT and shl/shr all fold
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// at compile time. Regression for the VM op port (P5.6) — these were unported in
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// `comptime_vm` and bailed (`shr` surfaced via the iOS-device bundler). `shr` is
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// an arithmetic right shift (sign-extending), mirroring the legacy interp's i64
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// model; the shift amount clamps to 63.
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#import "modules/std.sx";
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AND :: 0b1100 & 0b1010; // 0b1000 = 8
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OR :: 0b1100 | 0b1010; // 0b1110 = 14
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XOR :: 0b1100 ^ 0b1010; // 0b0110 = 6
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NOT :: ~0; // -1
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SHL :: 1 << 10; // 1024
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SHR :: 1024 >> 3; // 128
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ASHR :: (-8) >> 1; // -4 (arithmetic, sign-extending)
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main :: () {
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print("and={} or={} xor={} not={}\n", AND, OR, XOR, NOT);
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print("shl={} shr={} ashr={}\n", SHL, SHR, ASHR);
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}
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