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Take advantage of smaller integer load and store ops

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dcodeIO
2018-01-23 15:44:25 +01:00
parent 5d142ba647
commit 2fa7fc7885
13 changed files with 719 additions and 124 deletions
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19
src/program.ts
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@ -2134,6 +2134,10 @@ export const enum FlowFlags {
RETURNS = 1 << 0,
/** This branch possibly throws. */
POSSIBLY_THROWS = 1 << 1,
/** This branch possible breaks. */
POSSIBLY_BREAKS = 1 << 2,
/** This branch possible continues. */
POSSIBLY_CONTINUES = 1 << 3
}
/** A control flow evaluator. */
@ -2185,17 +2189,22 @@ export class Flow {
/** Leaves the current branch or scope and returns the parent flow. */
leaveBranchOrScope(): Flow {
var parent = assert(this.parent);
// Free block-scoped locals
if (this.scopedLocals) {
for (var scopedLocal of this.scopedLocals.values())
this.currentFunction.freeTempLocal(scopedLocal);
this.scopedLocals = null;
}
// Mark parent as THROWS if any child throws
if (this.is(FlowFlags.POSSIBLY_THROWS))
parent.set(FlowFlags.POSSIBLY_THROWS);
this.continueLabel = null;
this.breakLabel = null;
// Propagate flags to parent
if (this.is(FlowFlags.POSSIBLY_THROWS))
parent.set(FlowFlags.POSSIBLY_THROWS);
if (this.is(FlowFlags.POSSIBLY_BREAKS) && parent.breakLabel == this.breakLabel)
parent.set(FlowFlags.POSSIBLY_BREAKS);
if (this.is(FlowFlags.POSSIBLY_CONTINUES) && parent.continueLabel == this.continueLabel)
parent.set(FlowFlags.POSSIBLY_CONTINUES);
return parent;
}