compiler: Print valid -Zmir-enable-passes names if invalid name is used#156059
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rust-bors[bot] merged 1 commit intorust-lang:mainfrom May 2, 2026
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compiler: Print valid -Zmir-enable-passes names if invalid name is used#156059rust-bors[bot] merged 1 commit intorust-lang:mainfrom
-Zmir-enable-passes names if invalid name is used#156059rust-bors[bot] merged 1 commit intorust-lang:mainfrom
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Some changes occurred to MIR optimizations cc @rust-lang/wg-mir-opt |
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r? @mu001999 rustbot has assigned @mu001999. Use Why was this reviewer chosen?The reviewer was selected based on:
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…used If a user passes an invalid name to `-Zmir-enable-passes`, print the valid names as a note. The diagnostic is duplicated, but that is not introduced by this commit. In other words, we don't make matters worse. The existing "is unknown and will be ignored" diagnostic is already duplicated. To avoid the annoyance of having to keep blessing test output, completely normalize away the list of names in the test.
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…uwer Rollup of 9 pull requests Successful merges: - #156030 (Make stable hashing names consistent (part 1)) - #156020 (Improve source code for `librustdoc/visit_ast.rs`) - #156021 (Clean up some traits) - #156028 (Add a `Local::arg(i)` helper constructor) - #156037 (Add AcceptContext::expect_no_args) - #156040 (Add missing alias to mailmap) - #156048 (Make `diverging_type_vars` a vec of `TyVid`) - #156053 (Reuse CTFE MIR for constructors.) - #156059 (compiler: Print valid `-Zmir-enable-passes` names if invalid name is used) Failed merges: - #155940 (refactor rustc_on_unimplemented's filtering) - #156065 (Remove unused spans from AttributeKind)
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Rollup merge of #156059 - Enselic:print-mir-passes, r=mu001999 compiler: Print valid `-Zmir-enable-passes` names if invalid name is used If a user passes an invalid name to `-Zmir-enable-passes`, print the valid names as a note. To avoid the annoyance of having to keep blessing test output, completely normalize away the list of names in the test. The diagnostic is duplicated, but that is not introduced by this commit. In other words, we don't make matters worse. The existing "is unknown and will be ignored" diagnostic is already duplicated, as can be seen in the existing test stderr. The output is on one long line, but that makes normalization in tests easier, and I don't think we have to overdo this. We can let terminals wrap the line. <details> <summary>Click to expand current output</summary> `note: valid MIR pass names are: AbortUnwindingCalls, AddCallGuards, AddMovesForPackedDrops, AddRetag, CheckAlignment, CheckCallRecursion, CheckConstItemMutation, CheckDropRecursion, CheckEnums, CheckForceInline, CheckInlineAlwaysTargetFeature, CheckLiveDrops, CheckNull, CheckPackedRef, CleanupPostBorrowck, CopyProp, CtfeLimit, DataflowConstProp, DeadStoreElimination-final, DeadStoreElimination-initial, Derefer, DestinationPropagation, EarlyOtherwiseBranch, ElaborateBoxDerefs, ElaborateDrops, EnumSizeOpt, EraseDerefTemps, ForceInline, FunctionItemReferences, GVN, ImpossiblePredicates, Inline, InstSimplify-after-simplifycfg, InstSimplify-before-inline, InstrumentCoverage, JumpThreading, KnownPanicsLint, LowerIntrinsics, LowerSliceLenCalls, Marker, MatchBranchSimplification, MentionedItems, MultipleReturnTerminators, PostAnalysisNormalize, PreCodegen, PromoteTemps, ReferencePropagation, RemoveNoopLandingPads, RemovePlaceMention, RemoveStorageMarkers, RemoveUninitDrops, RemoveUnneededDrops, RemoveZsts, ReorderBasicBlocks, ReorderLocals, RequiredConstsVisitor, SanityCheck, ScalarReplacementOfAggregates, SimplifyCfg-after-unreachable-enum-branching, SimplifyCfg-final, SimplifyCfg-initial, SimplifyCfg-make_shim, SimplifyCfg-post-analysis, SimplifyCfg-pre-optimizations, SimplifyCfg-promote-consts, SimplifyCfg-remove-false-edges, SimplifyComparisonIntegral, SimplifyConstCondition-after-const-prop, SimplifyConstCondition-after-inst-simplify, SimplifyConstCondition-final, SimplifyLocals-after-value-numbering, SimplifyLocals-before-const-prop, SimplifyLocals-final, SingleUseConsts, SsaRangePropagation, StateTransform, StripDebugInfo, Subtyper, UnreachableEnumBranching, UnreachablePropagation, Validator` </details>
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…uwer Rollup of 9 pull requests Successful merges: - rust-lang/rust#156030 (Make stable hashing names consistent (part 1)) - rust-lang/rust#156020 (Improve source code for `librustdoc/visit_ast.rs`) - rust-lang/rust#156021 (Clean up some traits) - rust-lang/rust#156028 (Add a `Local::arg(i)` helper constructor) - rust-lang/rust#156037 (Add AcceptContext::expect_no_args) - rust-lang/rust#156040 (Add missing alias to mailmap) - rust-lang/rust#156048 (Make `diverging_type_vars` a vec of `TyVid`) - rust-lang/rust#156053 (Reuse CTFE MIR for constructors.) - rust-lang/rust#156059 (compiler: Print valid `-Zmir-enable-passes` names if invalid name is used) Failed merges: - rust-lang/rust#155940 (refactor rustc_on_unimplemented's filtering) - rust-lang/rust#156065 (Remove unused spans from AttributeKind)
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…uwer Rollup of 9 pull requests Successful merges: - rust-lang/rust#156030 (Make stable hashing names consistent (part 1)) - rust-lang/rust#156020 (Improve source code for `librustdoc/visit_ast.rs`) - rust-lang/rust#156021 (Clean up some traits) - rust-lang/rust#156028 (Add a `Local::arg(i)` helper constructor) - rust-lang/rust#156037 (Add AcceptContext::expect_no_args) - rust-lang/rust#156040 (Add missing alias to mailmap) - rust-lang/rust#156048 (Make `diverging_type_vars` a vec of `TyVid`) - rust-lang/rust#156053 (Reuse CTFE MIR for constructors.) - rust-lang/rust#156059 (compiler: Print valid `-Zmir-enable-passes` names if invalid name is used) Failed merges: - rust-lang/rust#155940 (refactor rustc_on_unimplemented's filtering) - rust-lang/rust#156065 (Remove unused spans from AttributeKind)
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If a user passes an invalid name to
-Zmir-enable-passes, print the valid names as a note.To avoid the annoyance of having to keep blessing test output, completely normalize away the list of names in the test.
The diagnostic is duplicated, but that is not introduced by this commit. In other words, we don't make matters worse. The existing "is unknown and will be ignored" diagnostic is already duplicated, as can be seen in the existing test stderr.
The output is on one long line, but that makes normalization in tests easier, and I don't think we have to overdo this. We can let terminals wrap the line.
Click to expand current output
note: valid MIR pass names are: AbortUnwindingCalls, AddCallGuards, AddMovesForPackedDrops, AddRetag, CheckAlignment, CheckCallRecursion, CheckConstItemMutation, CheckDropRecursion, CheckEnums, CheckForceInline, CheckInlineAlwaysTargetFeature, CheckLiveDrops, CheckNull, CheckPackedRef, CleanupPostBorrowck, CopyProp, CtfeLimit, DataflowConstProp, DeadStoreElimination-final, DeadStoreElimination-initial, Derefer, DestinationPropagation, EarlyOtherwiseBranch, ElaborateBoxDerefs, ElaborateDrops, EnumSizeOpt, EraseDerefTemps, ForceInline, FunctionItemReferences, GVN, ImpossiblePredicates, Inline, InstSimplify-after-simplifycfg, InstSimplify-before-inline, InstrumentCoverage, JumpThreading, KnownPanicsLint, LowerIntrinsics, LowerSliceLenCalls, Marker, MatchBranchSimplification, MentionedItems, MultipleReturnTerminators, PostAnalysisNormalize, PreCodegen, PromoteTemps, ReferencePropagation, RemoveNoopLandingPads, RemovePlaceMention, RemoveStorageMarkers, RemoveUninitDrops, RemoveUnneededDrops, RemoveZsts, ReorderBasicBlocks, ReorderLocals, RequiredConstsVisitor, SanityCheck, ScalarReplacementOfAggregates, SimplifyCfg-after-unreachable-enum-branching, SimplifyCfg-final, SimplifyCfg-initial, SimplifyCfg-make_shim, SimplifyCfg-post-analysis, SimplifyCfg-pre-optimizations, SimplifyCfg-promote-consts, SimplifyCfg-remove-false-edges, SimplifyComparisonIntegral, SimplifyConstCondition-after-const-prop, SimplifyConstCondition-after-inst-simplify, SimplifyConstCondition-final, SimplifyLocals-after-value-numbering, SimplifyLocals-before-const-prop, SimplifyLocals-final, SingleUseConsts, SsaRangePropagation, StateTransform, StripDebugInfo, Subtyper, UnreachableEnumBranching, UnreachablePropagation, Validator