Implement optimization pipeline: peephole, constant folding, strength reduction, DCE, tail calls

IR optimizer with 6 composable passes:
- Peephole: PushI32+Drop, Dup+Drop, Swap+Swap, Swap+Drop→Nip, identity ops
- Constant folding: binary (Add/Sub/Mul/And/Or/Xor/shifts/comparisons) + unary (Negate/Abs/Invert/ZeroEq/ZeroLt)
- Strength reduction: power-of-2 multiply→shift, PushI32(0)+Eq→ZeroEq
- Dead code elimination: truncate after Exit, constant-conditional If
- Tail call detection: last Call→TailCall when return stack balanced
- Compound ops: Over+Over→TwoDup, Drop+Drop→TwoDrop with optimized codegen

Dictionary hash index for O(1) word lookup during compilation.
wasmtime config: disable NaN canonicalization, enable module caching.
319 unit tests + 11 compliance, all passing.

This commit is contained in:

Oleksandr Kozachuk

2026-04-01 21:50:08 +02:00

parent 2c1f7fb3af

commit 282f884a3d

5 changed files with 718 additions and 11 deletions

									
										crates/core/src/ir.rs
									
		+4
		
												View File
												
				@@ -24,6 +24,10 @@ pub enum IrOp {

				    Rot,

				    Nip,

				    Tuck,

				    /// Two-item duplication: ( a b -- a b a b )

				    TwoDup,

				    /// Two-item drop: ( a b -- )

				    TwoDrop,

				    // -- Arithmetic --

				    Add,