{"files":[{"status":"M","path":"compiler\/forget\/src\/HIR\/Pipeline.ts"},{"status":"A","path":"compiler\/forget\/src\/HIR\/PruneUnusedLabels.ts"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/_bug_conditional-break-labeled.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/alias-while.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/complex-while.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/component.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-break.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-on-mutable.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies-outputs.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/extend-scopes-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/hooks-freeze-possibly-mutable-arguments.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/independent-across-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/interdependent-across-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/inverted-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/logical-expression.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-loops.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-with-aliasing.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-liverange-loop.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-interleaved-by-terminal.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-shadowing-within-block.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-while.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-within-block.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-conditional.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-separate-scopes.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/simple.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-call-jsx-2.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-multiple-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-single-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for-trivial-update.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-if-else.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-multiple-phis.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-loops-no-reassign.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-phi.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-reassignment.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-objectexpression-phi.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-alias-mutate-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-inside-if.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-return.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-shadowing.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-sibling-phis.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-simple-phi.expect.md"},{"status":"M","path":"compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-single-if.expect.md"},{"status":"M","path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--git a\/compiler\/forget\/src\/HIR\/Pipeline.ts b\/compiler\/forget\/src\/HIR\/Pipeline.ts\nindex 34a2b0ee26..6a32076958 100644\n--- a\/compiler\/forget\/src\/HIR\/Pipeline.ts\n+++ b\/compiler\/forget\/src\/HIR\/Pipeline.ts\n@@ -23,6 +23,7 @@ import { inferTypes } from \".\/InferTypes\";\n import { logHIRFunction } from \".\/logger\";\n import { printReactiveFunction } from \".\/PrintReactiveFunction\";\n import { propagateScopeDependencies } from \".\/PropagateScopeDependencies\";\n+import { pruneUnusedLabels } from \".\/PruneUnusedLabels\";\n \n export type CompilerFlags = {\n eliminateRedundantPhi: boolean;\n@@ -89,6 +90,7 @@ export default function (\n \n if (flags.codegen) {\n const reactiveFunction = buildReactiveFunction(ir);\n+ pruneUnusedLabels(reactiveFunction);\n flattenReactiveLoops(reactiveFunction);\n propagateScopeDependencies(reactiveFunction);\n const scopes = printReactiveFunction(reactiveFunction);\ndiff --git a\/compiler\/forget\/src\/HIR\/PruneUnusedLabels.ts b\/compiler\/forget\/src\/HIR\/PruneUnusedLabels.ts\nnew file mode 100644\nindex 0000000000..666f04a1f9\n--- \/dev\/null\n+++ b\/compiler\/forget\/src\/HIR\/PruneUnusedLabels.ts\n@@ -0,0 +1,83 @@\n+\/**\n+ * Copyright (c) Facebook, Inc. and its affiliates.\n+ *\n+ * This source code is licensed under the MIT license found in the\n+ * LICENSE file in the root directory of this source tree.\n+ *\/\n+\n+import { assertExhaustive } from \"..\/Common\/utils\";\n+import {\n+ BlockId,\n+ ReactiveBasicBlock,\n+ ReactiveFunction,\n+ ReactiveTerminal,\n+} from \".\/HIR\";\n+\n+\/**\n+ * Prunes terminal labels that are never explicitly jumped to.\n+ *\/\n+export function pruneUnusedLabels(fn: ReactiveFunction): void {\n+ const labels: Labels = new Set();\n+ visitBlock(labels, fn.body);\n+}\n+\n+type Labels = Set;\n+\n+function visitBlock(labels: Labels, block: ReactiveBasicBlock): void {\n+ for (const item of block) {\n+ if (item.kind === \"terminal\") {\n+ \/\/ first visit the terminal's contents, which is the only place that can\n+ \/\/ reference the terminal's label\n+ visitTerminal(labels, item.terminal);\n+ \/\/ if the label wasn't referenced by a break\/continue, we can prune it\n+ if (item.label !== null && !labels.has(item.label)) {\n+ item.label = null;\n+ }\n+ } else if (item.kind === \"block\") {\n+ visitBlock(labels, item.instructions);\n+ }\n+ }\n+}\n+\n+function visitTerminal(labels: Labels, terminal: ReactiveTerminal): void {\n+ switch (terminal.kind) {\n+ case \"break\":\n+ case \"continue\": {\n+ if (terminal.label !== null) {\n+ labels.add(terminal.label);\n+ }\n+ break;\n+ }\n+ case \"for\": {\n+ visitBlock(labels, terminal.loop);\n+ break;\n+ }\n+ case \"if\": {\n+ visitBlock(labels, terminal.consequent);\n+ if (terminal.alternate !== null) {\n+ visitBlock(labels, terminal.alternate);\n+ }\n+ break;\n+ }\n+ case \"return\":\n+ case \"throw\": {\n+ break;\n+ }\n+ case \"switch\": {\n+ for (const case_ of terminal.cases) {\n+ visitBlock(labels, case_.block!);\n+ }\n+ break;\n+ }\n+ case \"while\": {\n+ visitBlock(labels, terminal.loop);\n+ break;\n+ }\n+ default: {\n+ assertExhaustive(\n+ terminal,\n+ `Unexpected terminal kind '${(terminal as any).kind}'`\n+ );\n+ }\n+ }\n+}\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/_bug_conditional-break-labeled.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/_bug_conditional-break-labeled.expect.md\nindex 7e70e51c75..6789d5df9f 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/_bug_conditional-break-labeled.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/_bug_conditional-break-labeled.expect.md\n@@ -69,7 +69,7 @@ function Component$0(props$3) {\n const a$4 = [];\n a$4.push(props$3.a);\n \n- bb2: if (props$3.b) {\n+ if (props$3.b) {\n a$4.push(props$3.d);\n return a$4;\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/alias-while.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/alias-while.expect.md\nindex 341dab9869..c0c11f8efb 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/alias-while.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/alias-while.expect.md\n@@ -92,7 +92,7 @@ function foo$0(cond$7) {\n b$9 = {};\n c$10 = {};\n \n- bb2: while (cond$7) {\n+ while (cond$7) {\n const z$13 = a$8;\n a$8 = b$9;\n b$9 = c$10;\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/complex-while.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/complex-while.expect.md\nindex fbc5d1a45a..bc73a27367 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/complex-while.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/complex-while.expect.md\n@@ -62,9 +62,9 @@ function foo(\n \n ```javascript\n function foo$0(a$4, b$5, c$6) {\n- bb1: if (a$4) {\n+ if (a$4) {\n while (b$5) {\n- bb7: if (c$6) {\n+ if (c$6) {\n break;\n }\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/component.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/component.expect.md\nindex cf20cc5304..510abef4a4 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/component.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/component.expect.md\n@@ -189,21 +189,21 @@ function Component$0(props$29) {\n } else {\n }\n \n- bb2: for (let i$36 = 0; i$36 < items$30.length; i$36 = i$36 + 1, i$36) {\n+ for (let i$36 = 0; i$36 < items$30.length; i$36 = i$36 + 1, i$36) {\n const item$40 = items$30.at(i$36);\n \n- bb9: if (item$40 == null) {\n+ if (item$40 == null) {\n } else {\n }\n \n- bb6: if (seen$33.has(item$40)) {\n+ if (seen$33.has(item$40)) {\n continue;\n }\n \n seen$33.add(item$40);\n renderedItems$32.push(

{item$40}<\/div>);\n \n- bb12: if (renderedItems$32.length >= max$35) {\n+ if (renderedItems$32.length >= max$35) {\n break;\n }\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-break.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-break.expect.md\nindex 2da39867af..b4e0ae00a0 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-break.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-break.expect.md\n@@ -124,7 +124,7 @@ function Component$0(props$4) {\n a_DEBUG$5 = [];\n a_DEBUG$5.push(props$4.a);\n \n- bb1: if (props$4.b) {\n+ if (props$4.b) {\n return null;\n }\n \n@@ -191,7 +191,7 @@ function Component$0(props$3) {\n a$4 = [];\n a$4.push(props$3.a);\n \n- bb1: if (props$3.b) {\n+ if (props$3.b) {\n a$4.push(props$3.c);\n }\n \n@@ -262,7 +262,7 @@ function Component$0(props$4) {\n a$5 = [];\n a$5.push(props$4.a);\n \n- bb1: if (props$4.b) {\n+ if (props$4.b) {\n a$5.push(props$4.c);\n return null;\n }\n@@ -332,7 +332,7 @@ function Component$0(props$3) {\n a$4 = [];\n a$4.push(props$3.a);\n \n- bb1: if (props$3.b) {\n+ if (props$3.b) {\n a$4.push(props$3.c);\n return a$4;\n }\n@@ -400,7 +400,7 @@ function Component$0(props$3) {\n const a$4 = [];\n a$4.push(props$3.a);\n \n- bb2: if (props$3.b) {\n+ if (props$3.b) {\n a$4.push(props$3.d);\n return a$4;\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-on-mutable.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-on-mutable.expect.md\nindex 70e3f6f5fe..7f5d039411 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-on-mutable.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/conditional-on-mutable.expect.md\n@@ -92,11 +92,11 @@ function Component$0(props$6) {\n a$7 = [];\n const b$8 = [];\n \n- bb1: if (b$8) {\n+ if (b$8) {\n a$7.push(props$6.p0);\n }\n \n- bb3: if (props$6.p1) {\n+ if (props$6.p1) {\n b$8.push(props$6.p2);\n }\n \n@@ -188,11 +188,11 @@ function Component$0(props$8) {\n a$9 = [];\n const b$10 = [];\n \n- bb1: if (mayMutate$4(b$10)) {\n+ if (mayMutate$4(b$10)) {\n a$9.push(props$8.p0);\n }\n \n- bb3: if (props$8.p1) {\n+ if (props$8.p1) {\n b$10.push(props$8.p2);\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies-outputs.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies-outputs.expect.md\nindex 3663aad4ec..b9c400127b 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies-outputs.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies-outputs.expect.md\n@@ -94,11 +94,11 @@ function foo$0(a$6, b$7) {\n if (c_2 || c_3) {\n const y$10 = [];\n \n- bb1: if (x$8.length) {\n+ if (x$8.length) {\n y$10.push(x$8);\n }\n \n- bb3: if (b$7) {\n+ if (b$7) {\n y$10.push(b$7);\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies.expect.md\nindex 15dc3e671c..41848763ae 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/dependencies.expect.md\n@@ -88,7 +88,7 @@ function foo$0(x$6, y$7, z$8) {\n if (c_3 || c_4) {\n items2$10 = [];\n \n- bb1: if (x$6) {\n+ if (x$6) {\n items2$10.push(y$7);\n }\n \n@@ -99,7 +99,7 @@ function foo$0(x$6, y$7, z$8) {\n items2$10 = $[5];\n }\n \n- bb3: if (y$7) {\n+ if (y$7) {\n items$9.push(x$6);\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/extend-scopes-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/extend-scopes-if.expect.md\nindex 1e63ced36a..e23268703c 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/extend-scopes-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/extend-scopes-if.expect.md\n@@ -87,7 +87,7 @@ function foo$0(a$7, b$8, c$9) {\n if (c_0 || c_1 || c_2) {\n const x$10 = [];\n \n- bb1: if (a$7) {\n+ if (a$7) {\n if (b$8) {\n if (c$9) {\n x$10.push(0);\n@@ -101,7 +101,7 @@ function foo$0(a$7, b$8, c$9) {\n } else {\n }\n \n- bb7: if (a$7.length) {\n+ if (a$7.length) {\n return a$7;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/hooks-freeze-possibly-mutable-arguments.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/hooks-freeze-possibly-mutable-arguments.expect.md\nindex 26a03d7c49..b542caa100 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/hooks-freeze-possibly-mutable-arguments.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/hooks-freeze-possibly-mutable-arguments.expect.md\n@@ -86,7 +86,7 @@ function Component$0(props$7) {\n if (c_0 || c_1) {\n a$11 = undefined;\n \n- bb1: if (cond$8) {\n+ if (cond$8) {\n a$11 = x$9;\n } else {\n a$11 = [];\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/independent-across-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/independent-across-if.expect.md\nindex 45b33281da..0d1fb0af6f 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/independent-across-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/independent-across-if.expect.md\n@@ -178,7 +178,7 @@ function Component$0(props$8) {\n a$9 = compute$3(props$8.a);\n const b$10 = compute$3(props$8.b);\n \n- bb1: if (props$8.c) {\n+ if (props$8.c) {\n mutate$5(a$9);\n mutate$5(b$10);\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/interdependent-across-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/interdependent-across-if.expect.md\nindex 0dd2e1d943..efb11d82f3 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/interdependent-across-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/interdependent-across-if.expect.md\n@@ -148,7 +148,7 @@ function Component$0(props$8) {\n a$9 = compute$3(props$8.a);\n b$10 = compute$3(props$8.b);\n \n- bb1: if (props$8.c) {\n+ if (props$8.c) {\n foo$5(a$9, b$10);\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/inverted-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/inverted-if.expect.md\nindex b540b008f1..fa1c4915eb 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/inverted-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/inverted-if.expect.md\n@@ -64,7 +64,7 @@ function foo$0(a$5, b$6, c$7) {\n if (c_0 || c_1 || c_2) {\n const y$8 = [];\n \n- bb1: if (a$5) {\n+ if (a$5) {\n if (b$6) {\n y$8.push(c$7);\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/logical-expression.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/logical-expression.expect.md\nindex 62865d74a7..2a08c2b369 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/logical-expression.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/logical-expression.expect.md\n@@ -79,7 +79,7 @@ function And$0() {\n if (c_1) {\n t2$6 = undefined;\n \n- bb1: if (t0$5) {\n+ if (t0$5) {\n t2$6 = g$4();\n } else {\n t2$6 = t0$5;\n@@ -155,7 +155,7 @@ function Or$0() {\n if (c_1) {\n t2$6 = undefined;\n \n- bb1: if (t0$5) {\n+ if (t0$5) {\n t2$6 = t0$5;\n } else {\n t2$6 = g$4();\n@@ -236,7 +236,7 @@ function QuestionQuestion$0(props$8) {\n if (c_1) {\n t2$12 = undefined;\n \n- bb1: if (t0$9 != null) {\n+ if (t0$9 != null) {\n t2$12 = t0$9;\n } else {\n t2$12 = g$7();\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-loops.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-loops.expect.md\nindex ae96275d8c..f52bbbc11b 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-loops.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-loops.expect.md\n@@ -184,7 +184,7 @@ function Component$0(props$12) {\n let b$20 = {};\n let c$22 = {};\n let d$24 = {};\n- bb2: while (true) {\n+ while (true) {\n const z$19 = a$18;\n a$18 = b$20;\n b$20 = c$22;\n@@ -192,21 +192,21 @@ function Component$0(props$12) {\n d$24 = z$19;\n mutate$7(a$18, b$20);\n \n- bb4: if (cond$8(a$18)) {\n+ if (cond$8(a$18)) {\n break;\n }\n }\n \n- bb7: if (a$18) {\n+ if (a$18) {\n }\n \n- bb9: if (b$20) {\n+ if (b$20) {\n }\n \n- bb11: if (c$22) {\n+ if (c$22) {\n }\n \n- bb13: if (d$24) {\n+ if (d$24) {\n }\n \n mutate$7(d$24, null);\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-with-aliasing.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-with-aliasing.expect.md\nindex 17ecf712d0..d532cb7e35 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-with-aliasing.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-lifetime-with-aliasing.expect.md\n@@ -157,19 +157,19 @@ function Component$0(props$10) {\n x$15.b = b$12;\n const y$16 = mutate$8(x$15, d$14);\n \n- bb1: if (a$11) {\n+ if (a$11) {\n }\n \n- bb3: if (b$12) {\n+ if (b$12) {\n }\n \n- bb5: if (c$13) {\n+ if (c$13) {\n }\n \n- bb7: if (d$14) {\n+ if (d$14) {\n }\n \n- bb9: if (y$16) {\n+ if (y$16) {\n }\n \n mutate$8(x$15, null);\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-liverange-loop.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-liverange-loop.expect.md\nindex 4b6e9e6dff..cab058c48e 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-liverange-loop.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/mutable-liverange-loop.expect.md\n@@ -173,24 +173,24 @@ function Component$0(props$11) {\n \n const d$15 = {};\n \n- bb2: while (true) {\n+ while (true) {\n mutate$6(a$12, b$13);\n \n- bb4: if (cond$7(a$12)) {\n+ if (cond$7(a$12)) {\n break;\n }\n }\n \n- bb7: if (a$12) {\n+ if (a$12) {\n }\n \n- bb9: if (b$13) {\n+ if (b$13) {\n }\n \n- bb11: if (c$14) {\n+ if (c$14) {\n }\n \n- bb13: if (d$15) {\n+ if (d$15) {\n }\n \n mutate$6(d$15, null);\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-interleaved-by-terminal.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-interleaved-by-terminal.expect.md\nindex 3ab4c7a018..50ec72a315 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-interleaved-by-terminal.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-interleaved-by-terminal.expect.md\n@@ -61,7 +61,7 @@ function foo$0(a$6, b$7, c$8) {\n const x$9 = [];\n const y$10 = [];\n \n- bb1: if (x$9) {\n+ if (x$9) {\n }\n \n y$10.push(a$6);\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-shadowing-within-block.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-shadowing-within-block.expect.md\nindex deb85038e3..1c2a121eea 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-shadowing-within-block.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-shadowing-within-block.expect.md\n@@ -83,7 +83,7 @@ function foo$0(a$8, b$9, c$10) {\n if (c_0 || c_1 || c_2) {\n x$11 = [];\n \n- bb1: if (a$8) {\n+ if (a$8) {\n const c_4 = $[4] !== b$9;\n const c_5 = $[5] !== c$10;\n let y$12;\n@@ -91,7 +91,7 @@ function foo$0(a$8, b$9, c$10) {\n if (c_4 || c_5) {\n y$12 = [];\n \n- bb3: if (b$9) {\n+ if (b$9) {\n y$12.push(c$10);\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-while.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-while.expect.md\nindex 0782dfb646..9969ac9b97 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-while.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-while.expect.md\n@@ -68,7 +68,7 @@ function foo$0(a$6, b$7, c$8) {\n const x$9 = [];\n const y$10 = [];\n \n- bb2: while (c$8) {\n+ while (c$8) {\n y$10.push(b$7);\n x$9.push(a$6);\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-within-block.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-within-block.expect.md\nindex 918ab87271..1bca98e145 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-within-block.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/overlapping-scopes-within-block.expect.md\n@@ -75,10 +75,10 @@ function foo$0(a$6, b$7, c$8) {\n if (c_0 || c_1 || c_2) {\n x$9 = [];\n \n- bb1: if (a$6) {\n+ if (a$6) {\n const y$10 = [];\n \n- bb3: if (b$7) {\n+ if (b$7) {\n y$10.push(c$8);\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes-if.expect.md\nindex de75cfb57b..0933bb486b 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes-if.expect.md\n@@ -80,7 +80,7 @@ function foo$0(a$8, b$9, c$10) {\n if (c_0 || c_1 || c_2) {\n x$11 = [];\n \n- bb1: if (a$8) {\n+ if (a$8) {\n const c_4 = $[4] !== b$9;\n let y$12;\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes.expect.md\nindex e56d0ef294..66c819ef55 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reactive-scopes.expect.md\n@@ -74,7 +74,7 @@ function f$0(a$8, b$9) {\n if (c_0 || c_1) {\n x$10 = [];\n \n- bb1: if (a$8.length === 1) {\n+ if (a$8.length === 1) {\n if (b$9) {\n x$10.push(b$9);\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-conditional.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-conditional.expect.md\nindex 456b86ca40..003eec98b9 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-conditional.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-conditional.expect.md\n@@ -78,7 +78,7 @@ function Component$0(props$6) {\n x$7.push(props$6.p0);\n const y$8 = x$7;\n \n- bb1: if (props$6.p1) {\n+ if (props$6.p1) {\n x$7 = [];\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-separate-scopes.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-separate-scopes.expect.md\nindex 7be4b3dc1e..ee81bf0ae9 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-separate-scopes.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/reassignment-separate-scopes.expect.md\n@@ -125,7 +125,7 @@ function foo$0(a$13, b$14, c$15) {\n if (c_0) {\n x$16 = [];\n \n- bb1: if (a$13) {\n+ if (a$13) {\n x$16.push(a$13);\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/simple.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/simple.expect.md\nindex 571db14c1d..40c4671785 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/simple.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/simple.expect.md\n@@ -58,7 +58,7 @@ function foo(\n ```javascript\n function foo$0(x$8, y$9) {\n const $ = React.useMemoCache();\n- bb1: if (x$8) {\n+ if (x$8) {\n const c_0 = $[0] !== y$9;\n let t1$11;\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-call-jsx-2.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-call-jsx-2.expect.md\nindex b48a0ca24b..b3897f97cc 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-call-jsx-2.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-call-jsx-2.expect.md\n@@ -109,7 +109,7 @@ function Component$0(props$10) {\n } else {\n }\n \n- bb1: if (foo$4()) {\n+ if (foo$4()) {\n const c_2 = $[2] !== a$11;\n \n if (c_2) {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-multiple-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-multiple-if.expect.md\nindex 251a865728..96dd669d3b 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-multiple-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-multiple-if.expect.md\n@@ -80,11 +80,11 @@ function foo$0() {\n x$7 = 1;\n const y$8 = 2;\n \n- bb1: if (y$8 === 2) {\n+ if (y$8 === 2) {\n x$7 = 3;\n }\n \n- bb3: if (y$8 === 3) {\n+ if (y$8 === 3) {\n x$7 = 5;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-single-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-single-if.expect.md\nindex e9abf6f090..0112c87c2e 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-single-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-complex-single-if.expect.md\n@@ -63,7 +63,7 @@ function foo$0() {\n x$5 = 1;\n const y$6 = 2;\n \n- bb1: if (y$6 === 2) {\n+ if (y$6 === 2) {\n x$5 = 3;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for-trivial-update.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for-trivial-update.expect.md\nindex 0ea3c97a07..296d569752 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for-trivial-update.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for-trivial-update.expect.md\n@@ -75,7 +75,7 @@ function foo$0() {\n if (true) {\n x$6 = 1;\n \n- bb2: for (const i$7 = 0; i$7 < 10; i$7) {\n+ for (const i$7 = 0; i$7 < 10; i$7) {\n x$6 = x$6 + 1;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for.expect.md\nindex ad2dd961f9..6455540177 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-for.expect.md\n@@ -79,7 +79,7 @@ function foo$0() {\n if (true) {\n x$7 = 1;\n \n- bb2: for (let i$8 = 0; i$8 < 10; i$8 = i$8 + 1, i$8) {\n+ for (let i$8 = 0; i$8 < 10; i$8 = i$8 + 1, i$8) {\n x$7 = x$7 + 1;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-if-else.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-if-else.expect.md\nindex f7f1cfd83e..7142853232 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-if-else.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-if-else.expect.md\n@@ -58,7 +58,7 @@ function foo(\n function foo$0() {\n const x$5 = 1;\n const y$6 = 2;\n- bb1: if (y$6) {\n+ if (y$6) {\n const z$7 = x$5 + y$6;\n } else {\n const z$8 = x$5;\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-multiple-phis.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-multiple-phis.expect.md\nindex 337c975d75..d2b5b98747 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-multiple-phis.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-multiple-phis.expect.md\n@@ -119,8 +119,8 @@ function foo$0(a$9, b$10, c$11, d$12) {\n if (c_0 || c_1 || c_2 || c_3) {\n x$18 = undefined;\n \n- bb1: if (true) {\n- bb3: if (true) {\n+ if (true) {\n+ if (true) {\n x$18 = a$9;\n } else {\n x$18 = b$10;\n@@ -128,7 +128,7 @@ function foo$0(a$9, b$10, c$11, d$12) {\n \n x$18;\n } else {\n- bb7: if (true) {\n+ if (true) {\n x$18 = c$11;\n } else {\n x$18 = d$12;\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-loops-no-reassign.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-loops-no-reassign.expect.md\nindex bd8c08e4ed..12890207a8 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-loops-no-reassign.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-loops-no-reassign.expect.md\n@@ -87,9 +87,9 @@ function foo(\n ```javascript\n function foo$0(a$6, b$7, c$8) {\n const x$9 = 0;\n- bb2: while (a$6) {\n- bb5: while (b$7) {\n- bb8: while (c$8) {\n+ while (a$6) {\n+ while (b$7) {\n+ while (c$8) {\n x$9 + 1;\n }\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-phi.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-phi.expect.md\nindex 9569ead3ab..9f61e81e71 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-phi.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-phi.expect.md\n@@ -69,8 +69,8 @@ function foo$0(a$5, b$6, c$7) {\n if (c_0 || c_1 || c_2) {\n const x$8 = a$5;\n \n- bb1: if (b$6) {\n- bb3: if (c$7) {\n+ if (b$6) {\n+ if (c$7) {\n x$8 = c$7;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-reassignment.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-reassignment.expect.md\nindex b4d860c119..9fba07f3f9 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-reassignment.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-nested-partial-reassignment.expect.md\n@@ -76,7 +76,7 @@ function foo$0(a$7, b$8, c$9, d$10, e$11) {\n if (c_0 || c_1 || c_2 || c_3) {\n x$12 = null;\n \n- bb1: if (a$7) {\n+ if (a$7) {\n x$12 = b$8;\n } else {\n if (c$9) {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-objectexpression-phi.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-objectexpression-phi.expect.md\nindex 889383e0e9..28b34ee5e4 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-objectexpression-phi.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-objectexpression-phi.expect.md\n@@ -75,7 +75,7 @@ function foo$0() {\n x$6 = 1;\n let y$7 = 2;\n \n- bb1: if (x$6 > 1) {\n+ if (x$6 > 1) {\n x$6 = 2;\n } else {\n y$7 = 3;\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-alias-mutate-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-alias-mutate-if.expect.md\nindex 3f9eaa92ab..7cecf3a318 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-alias-mutate-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-alias-mutate-if.expect.md\n@@ -75,7 +75,7 @@ function foo$0(a$7) {\n const b$8 = {};\n x$9 = b$8;\n \n- bb1: if (a$7) {\n+ if (a$7) {\n const y$10 = {};\n x$9.y = y$10;\n } else {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-if.expect.md\nindex d96b7ecf9a..b5f90a53d2 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-if.expect.md\n@@ -72,7 +72,7 @@ function foo$0(a$5) {\n if (c_0) {\n x$6 = {};\n \n- bb1: if (a$5) {\n+ if (a$5) {\n if (true) {\n const y$7 = {};\n } else {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-if.expect.md\nindex b7c8647f0f..8f33db2205 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-if.expect.md\n@@ -71,7 +71,7 @@ function foo$0(a$6) {\n if (c_0) {\n x$7 = {};\n \n- bb1: if (a$6) {\n+ if (a$6) {\n const y$8 = {};\n x$7.y = y$8;\n } else {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-inside-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-inside-if.expect.md\nindex eb7b304610..2e4f48973b 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-inside-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-property-alias-mutate-inside-if.expect.md\n@@ -73,7 +73,7 @@ function foo$0(a$6) {\n if (c_0) {\n x$7 = {};\n \n- bb1: if (a$6) {\n+ if (a$6) {\n const y$8 = {};\n x$7.y = y$8;\n mutate$4(y$8);\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-return.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-return.expect.md\nindex 3e8133c3ef..b051310aef 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-return.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-return.expect.md\n@@ -57,7 +57,7 @@ function foo$0() {\n if (true) {\n x$4 = 1;\n \n- bb1: if (x$4 === 1) {\n+ if (x$4 === 1) {\n x$4 = 2;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-shadowing.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-shadowing.expect.md\nindex a408a6f2a8..37d03e4e23 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-shadowing.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-shadowing.expect.md\n@@ -92,7 +92,7 @@ function Foo$0(cond$5) {\n if (c_0) {\n str$6 = \"\";\n \n- bb1: if (cond$5) {\n+ if (cond$5) {\n const str$7 = \"other test\";\n log$4(str$7);\n } else {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-sibling-phis.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-sibling-phis.expect.md\nindex 64c1323ae7..434fa4d7fc 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-sibling-phis.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-sibling-phis.expect.md\n@@ -115,7 +115,7 @@ function foo(\n function foo$0(a$9, b$10, c$11, d$12) {\n const $ = React.useMemoCache();\n const x$13 = 0;\n- bb1: if (true) {\n+ if (true) {\n const c_0 = $[0] !== a$9;\n const c_1 = $[1] !== b$10;\n let x$16;\n@@ -123,7 +123,7 @@ function foo$0(a$9, b$10, c$11, d$12) {\n if (c_0 || c_1) {\n x$16 = undefined;\n \n- bb3: if (true) {\n+ if (true) {\n x$16 = a$9;\n } else {\n x$16 = b$10;\n@@ -145,7 +145,7 @@ function foo$0(a$9, b$10, c$11, d$12) {\n if (c_3 || c_4) {\n x$20 = undefined;\n \n- bb7: if (true) {\n+ if (true) {\n x$20 = c$11;\n } else {\n x$20 = d$12;\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-simple-phi.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-simple-phi.expect.md\nindex 89d4df4fba..4f3648a606 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-simple-phi.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-simple-phi.expect.md\n@@ -71,7 +71,7 @@ function foo$0() {\n if (true) {\n y$8 = undefined;\n \n- bb1: if (y$5 > 1) {\n+ if (y$5 > 1) {\n y$8 = 1;\n } else {\n y$8 = 2;\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-single-if.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-single-if.expect.md\nindex 5252950eab..9e0f53ebda 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-single-if.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-single-if.expect.md\n@@ -50,7 +50,7 @@ function foo(\n function foo$0() {\n const x$4 = 1;\n const y$5 = 2;\n- bb1: if (y$5) {\n+ if (y$5) {\n const z$6 = x$4 + y$5;\n }\n }\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-throw.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-throw.expect.md\nindex a8ea84eaf4..74daa3b3b4 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-throw.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-throw.expect.md\n@@ -56,7 +56,7 @@ function foo$0() {\n if (true) {\n x$4 = 1;\n \n- bb1: if (x$4 === 1) {\n+ if (x$4 === 1) {\n x$4 = 2;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-while-no-reassign.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-while-no-reassign.expect.md\nindex 36641969a8..46eb7778de 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-while-no-reassign.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-while-no-reassign.expect.md\n@@ -58,7 +58,7 @@ function foo(\n ```javascript\n function foo$0() {\n const x$5 = 1;\n- bb2: while (x$5 < 10) {\n+ while (x$5 < 10) {\n x$5 + 1;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-while.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-while.expect.md\nindex 5d95ec44a5..7ca584a42b 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-while.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/ssa-while.expect.md\n@@ -64,7 +64,7 @@ function foo$0() {\n if (true) {\n x$5 = 1;\n \n- bb2: while (x$5 < 10) {\n+ while (x$5 < 10) {\n x$5 = x$5 + 1;\n }\n \ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/switch.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/switch.expect.md\nindex e6caad23d1..9cf32c6749 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/switch.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/switch.expect.md\n@@ -103,7 +103,7 @@ function Component$0(props$8) {\n x$9 = [];\n let y$10 = undefined;\n \n- bb1: switch (props$8.p0) {\n+ switch (props$8.p0) {\n case true: {\n x$9.push(props$8.p2);\n x$9.push(props$8.p3);\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-args-test-binary-operator.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-args-test-binary-operator.expect.md\nindex a8d5db67d8..12c1195d6c 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-args-test-binary-operator.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-args-test-binary-operator.expect.md\n@@ -47,7 +47,7 @@ function component(\n \n ```javascript\n function component$0(a$5, b$6) {\n- bb1: if (a$5 > b$6) {\n+ if (a$5 > b$6) {\n if (true) {\n const m$8 = {};\n } else {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-binary-operator.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-binary-operator.expect.md\nindex 753ec5987a..b7cdd51d5e 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-binary-operator.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-binary-operator.expect.md\n@@ -73,7 +73,7 @@ function component$0() {\n b$8 = $[1];\n }\n \n- bb1: if (a$7 > b$8) {\n+ if (a$7 > b$8) {\n if (true) {\n const m$10 = {};\n } else {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-test-field-load-binary-op.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-test-field-load-binary-op.expect.md\nindex 7c330b5dc8..2ddc19a314 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-test-field-load-binary-op.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-test-field-load-binary-op.expect.md\n@@ -100,7 +100,7 @@ function component$0() {\n const u$13 = x$12.u;\n const v$14 = x$12.v;\n \n- bb1: if (u$13 > v$14) {\n+ if (u$13 > v$14) {\n }\n \n const y$16 = x$12.u;\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-test-return-type-inference.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-test-return-type-inference.expect.md\nindex de4c0edc16..d47678cc17 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-test-return-type-inference.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/type-test-return-type-inference.expect.md\n@@ -79,7 +79,7 @@ function component$0() {\n y$8 = $[1];\n }\n \n- bb1: if (x$7 > y$8) {\n+ if (x$7 > y$8) {\n if (true) {\n const z$10 = {};\n } else {\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/while-break.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/while-break.expect.md\nindex 3c7c61ca88..331ae1a636 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/while-break.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/while-break.expect.md\n@@ -45,7 +45,7 @@ function foo(\n \n ```javascript\n function foo$0(a$3, b$4) {\n- bb2: while (a$3) {\n+ while (a$3) {\n break;\n }\n return b$4;\ndiff --git a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/while-conditional-continue.expect.md b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/while-conditional-continue.expect.md\nindex 7bd4f75fe4..121911b256 100644\n--- a\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/while-conditional-continue.expect.md\n+++ b\/compiler\/forget\/src\/__tests__\/fixtures\/hir\/while-conditional-continue.expect.md\n@@ -66,8 +66,8 @@ function foo(\n \n ```javascript\n function foo$0(a$5, b$6, c$7, d$8) {\n- bb2: while (a$5) {\n- bb4: if (b$6) {\n+ while (a$5) {\n+ if (b$6) {\n continue;\n }\n c$7();\ndiff --git a\/compiler\/forget\/src\/index.ts b\/compiler\/forget\/src\/index.ts\nindex d19f065e26..20faed6542 100644\n--- a\/compiler\/forget\/src\/index.ts\n+++ b\/compiler\/forget\/src\/index.ts\n@@ -40,6 +40,7 @@ import { leaveSSA } from \".\/HIR\/LeaveSSA\";\n import printHIR, { printFunction } from \".\/HIR\/PrintHIR\";\n import { printReactiveFunction } from \".\/HIR\/PrintReactiveFunction\";\n import { propagateScopeDependencies } from \".\/HIR\/PropagateScopeDependencies\";\n+import { pruneUnusedLabels } from \".\/HIR\/PruneUnusedLabels\";\n \n function parseFunctions(\n source: string\n@@ -81,6 +82,7 @@ export const HIR = {\n printFunction,\n printHIR,\n printReactiveFunction,\n+ pruneUnusedLabels,\n };\n \n export default BabelPlugin;\n","commit":{"shortRevision":"6efac28677","authorName":"Joe Savona","authorEmail":"joesavona@fb.com","authoredAt":"2022-12-14T16:42:54-08:00","revision":"6efac286770f8b104aea68bf84ae28c8286a24b2","subject":"Prune unnecessary labels in output"}}

dillon1000/react

Files changed