diff --git a/compiler/rustc_mir/src/transform/copy_prop.rs b/compiler/rustc_mir/src/transform/copy_prop.rs index ba406c72df848..74194467b38c5 100644 --- a/compiler/rustc_mir/src/transform/copy_prop.rs +++ b/compiler/rustc_mir/src/transform/copy_prop.rs @@ -31,9 +31,11 @@ pub struct CopyPropagation; impl<'tcx> MirPass<'tcx> for CopyPropagation { fn run_pass(&self, tcx: TyCtxt<'tcx>, _source: MirSource<'tcx>, body: &mut Body<'tcx>) { + let opts = &tcx.sess.opts.debugging_opts; // We only run when the MIR optimization level is > 1. // This avoids a slow pass, and messing up debug info. - if tcx.sess.opts.debugging_opts.mir_opt_level <= 1 { + // FIXME(76740): This optimization is buggy and can cause unsoundness. + if opts.mir_opt_level <= 1 || !opts.unsound_mir_opts { return; } diff --git a/compiler/rustc_mir/src/transform/simplify_try.rs b/compiler/rustc_mir/src/transform/simplify_try.rs index 9a11d92724020..ec0ba25a28a20 100644 --- a/compiler/rustc_mir/src/transform/simplify_try.rs +++ b/compiler/rustc_mir/src/transform/simplify_try.rs @@ -612,7 +612,7 @@ impl<'a, 'tcx> SimplifyBranchSameOptimizationFinder<'a, 'tcx> { && bb_l.terminator().kind == bb_r.terminator().kind; let statement_check = || { bb_l.statements.iter().zip(&bb_r.statements).try_fold(StatementEquality::TrivialEqual, |acc,(l,r)| { - let stmt_equality = self.statement_equality(*adt_matched_on, &l, bb_l_idx, &r, bb_r_idx, self.tcx.sess.opts.debugging_opts.mir_opt_level); + let stmt_equality = self.statement_equality(*adt_matched_on, &l, bb_l_idx, &r, bb_r_idx, self.tcx); if matches!(stmt_equality, StatementEquality::NotEqual) { // short circuit None @@ -672,7 +672,7 @@ impl<'a, 'tcx> SimplifyBranchSameOptimizationFinder<'a, 'tcx> { x_bb_idx: BasicBlock, y: &Statement<'tcx>, y_bb_idx: BasicBlock, - mir_opt_level: usize, + tcx: TyCtxt<'tcx>, ) -> StatementEquality { let helper = |rhs: &Rvalue<'tcx>, place: &Place<'tcx>, @@ -693,7 +693,7 @@ impl<'a, 'tcx> SimplifyBranchSameOptimizationFinder<'a, 'tcx> { Rvalue::Use(operand) if operand.place() == Some(adt_matched_on) => { // FIXME(76803): This logic is currently broken because it does not take into // account the current discriminant value. - if mir_opt_level > 2 { + if tcx.sess.opts.debugging_opts.unsound_mir_opts { StatementEquality::ConsideredEqual(side_to_choose) } else { StatementEquality::NotEqual diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 8cc55f4ebe895..712c9cb87c9d5 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -1115,6 +1115,8 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options, `hir,typed` (HIR with types for each node), `hir-tree` (dump the raw HIR), `mir` (the MIR), or `mir-cfg` (graphviz formatted MIR)"), + unsound_mir_opts: bool = (false, parse_bool, [TRACKED], + "enable unsound and buggy MIR optimizations (default: no)"), unstable_options: bool = (false, parse_bool, [UNTRACKED], "adds unstable command line options to rustc interface (default: no)"), use_ctors_section: Option = (None, parse_opt_bool, [TRACKED], diff --git a/src/test/mir-opt/copy_propagation.rs b/src/test/mir-opt/copy_propagation.rs index ee460a488b675..8283ec73d0f07 100644 --- a/src/test/mir-opt/copy_propagation.rs +++ b/src/test/mir-opt/copy_propagation.rs @@ -1,3 +1,4 @@ +// compile-flags: -Zunsound-mir-opts // EMIT_MIR copy_propagation.test.CopyPropagation.diff fn test(x: u32) -> u32 { diff --git a/src/test/mir-opt/copy_propagation.test.CopyPropagation.diff b/src/test/mir-opt/copy_propagation.test.CopyPropagation.diff index 1f3e559c1b7f4..152d159063052 100644 --- a/src/test/mir-opt/copy_propagation.test.CopyPropagation.diff +++ b/src/test/mir-opt/copy_propagation.test.CopyPropagation.diff @@ -2,19 +2,19 @@ + // MIR for `test` after CopyPropagation fn test(_1: u32) -> u32 { - debug x => _1; // in scope 0 at $DIR/copy_propagation.rs:3:9: 3:10 - let mut _0: u32; // return place in scope 0 at $DIR/copy_propagation.rs:3:20: 3:23 - let _2: u32; // in scope 0 at $DIR/copy_propagation.rs:4:9: 4:10 + debug x => _1; // in scope 0 at $DIR/copy_propagation.rs:4:9: 4:10 + let mut _0: u32; // return place in scope 0 at $DIR/copy_propagation.rs:4:20: 4:23 + let _2: u32; // in scope 0 at $DIR/copy_propagation.rs:5:9: 5:10 scope 1 { - debug y => _0; // in scope 1 at $DIR/copy_propagation.rs:4:9: 4:10 + debug y => _0; // in scope 1 at $DIR/copy_propagation.rs:5:9: 5:10 } bb0: { - nop; // scope 0 at $DIR/copy_propagation.rs:4:9: 4:10 - _0 = _1; // scope 0 at $DIR/copy_propagation.rs:4:13: 4:14 - nop; // scope 1 at $DIR/copy_propagation.rs:5:5: 5:6 - nop; // scope 0 at $DIR/copy_propagation.rs:6:1: 6:2 - return; // scope 0 at $DIR/copy_propagation.rs:6:2: 6:2 + nop; // scope 0 at $DIR/copy_propagation.rs:5:9: 5:10 + _0 = _1; // scope 0 at $DIR/copy_propagation.rs:5:13: 5:14 + nop; // scope 1 at $DIR/copy_propagation.rs:6:5: 6:6 + nop; // scope 0 at $DIR/copy_propagation.rs:7:1: 7:2 + return; // scope 0 at $DIR/copy_propagation.rs:7:2: 7:2 } } diff --git a/src/test/mir-opt/early_otherwise_branch_68867.rs b/src/test/mir-opt/early_otherwise_branch_68867.rs index 5922e73e5d205..98a275c18acdc 100644 --- a/src/test/mir-opt/early_otherwise_branch_68867.rs +++ b/src/test/mir-opt/early_otherwise_branch_68867.rs @@ -1,5 +1,5 @@ // ignore-tidy-linelength -// compile-flags: -Z mir-opt-level=3 +// compile-flags: -Z mir-opt-level=3 -Zunsound-mir-opts // example from #68867 type CSSFloat = f32; diff --git a/src/test/mir-opt/inline/inline-closure-borrows-arg.rs b/src/test/mir-opt/inline/inline-closure-borrows-arg.rs index 218bc3553a139..d76bc33f52e7d 100644 --- a/src/test/mir-opt/inline/inline-closure-borrows-arg.rs +++ b/src/test/mir-opt/inline/inline-closure-borrows-arg.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z span_free_formats +// compile-flags: -Z span_free_formats -Zunsound-mir-opts // Tests that MIR inliner can handle closure arguments, // even when (#45894) diff --git a/src/test/mir-opt/inline/inline_any_operand.bar.Inline.after.mir b/src/test/mir-opt/inline/inline_any_operand.bar.Inline.after.mir index 756f31315f18a..4d623297f8d68 100644 --- a/src/test/mir-opt/inline/inline_any_operand.bar.Inline.after.mir +++ b/src/test/mir-opt/inline/inline_any_operand.bar.Inline.after.mir @@ -4,13 +4,15 @@ fn bar() -> bool { let mut _0: bool; // return place in scope 0 at $DIR/inline-any-operand.rs:10:13: 10:17 let _1: fn(i32, i32) -> bool {foo}; // in scope 0 at $DIR/inline-any-operand.rs:11:9: 11:10 let mut _2: fn(i32, i32) -> bool {foo}; // in scope 0 at $DIR/inline-any-operand.rs:12:5: 12:6 - let mut _3: i32; // in scope 0 at $DIR/inline-any-operand.rs:12:5: 12:13 - let mut _4: i32; // in scope 0 at $DIR/inline-any-operand.rs:12:5: 12:13 + let mut _5: i32; // in scope 0 at $DIR/inline-any-operand.rs:12:5: 12:13 + let mut _6: i32; // in scope 0 at $DIR/inline-any-operand.rs:12:5: 12:13 scope 1 { debug f => _1; // in scope 1 at $DIR/inline-any-operand.rs:11:9: 11:10 scope 2 { - debug x => _3; // in scope 2 at $DIR/inline-any-operand.rs:16:8: 16:9 - debug y => _4; // in scope 2 at $DIR/inline-any-operand.rs:16:16: 16:17 + debug x => _5; // in scope 2 at $DIR/inline-any-operand.rs:16:8: 16:9 + debug y => _6; // in scope 2 at $DIR/inline-any-operand.rs:16:16: 16:17 + let mut _3: i32; // in scope 2 at $DIR/inline-any-operand.rs:12:5: 12:13 + let mut _4: i32; // in scope 2 at $DIR/inline-any-operand.rs:12:5: 12:13 } } @@ -22,13 +24,19 @@ fn bar() -> bool { // + literal: Const { ty: fn(i32, i32) -> bool {foo}, val: Value(Scalar()) } StorageLive(_2); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:6 _2 = _1; // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:6 - StorageLive(_3); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 - _3 = const 1_i32; // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 - StorageLive(_4); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 - _4 = const -1_i32; // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 + StorageLive(_5); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 + _5 = const 1_i32; // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 + StorageLive(_6); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 + _6 = const -1_i32; // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 + StorageLive(_3); // scope 2 at $DIR/inline-any-operand.rs:17:5: 17:6 + _3 = _5; // scope 2 at $DIR/inline-any-operand.rs:17:5: 17:6 + StorageLive(_4); // scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11 + _4 = _6; // scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11 _0 = Eq(move _3, move _4); // scope 2 at $DIR/inline-any-operand.rs:17:5: 17:11 - StorageDead(_4); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 - StorageDead(_3); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 + StorageDead(_4); // scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11 + StorageDead(_3); // scope 2 at $DIR/inline-any-operand.rs:17:10: 17:11 + StorageDead(_6); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 + StorageDead(_5); // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13 StorageDead(_2); // scope 1 at $DIR/inline-any-operand.rs:12:12: 12:13 StorageDead(_1); // scope 0 at $DIR/inline-any-operand.rs:13:1: 13:2 return; // scope 0 at $DIR/inline-any-operand.rs:13:2: 13:2 diff --git a/src/test/mir-opt/inline/inline_trait_method_2.test2.Inline.after.mir b/src/test/mir-opt/inline/inline_trait_method_2.test2.Inline.after.mir index 00e3ef06a49e6..09546205962a4 100644 --- a/src/test/mir-opt/inline/inline_trait_method_2.test2.Inline.after.mir +++ b/src/test/mir-opt/inline/inline_trait_method_2.test2.Inline.after.mir @@ -7,6 +7,7 @@ fn test2(_1: &dyn X) -> bool { let mut _3: &dyn X; // in scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11 scope 1 { debug x => _2; // in scope 1 at $DIR/inline-trait-method_2.rs:9:9: 9:10 + let mut _4: &dyn X; // in scope 1 at $DIR/inline-trait-method_2.rs:5:5: 5:12 } bb0: { @@ -15,13 +16,16 @@ fn test2(_1: &dyn X) -> bool { _3 = &(*_1); // scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11 _2 = move _3 as &dyn X (Pointer(Unsize)); // scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11 StorageDead(_3); // scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11 - _0 = ::y(move _2) -> bb1; // scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:10 + StorageLive(_4); // scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:6 + _4 = _2; // scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:6 + _0 = ::y(move _4) -> bb1; // scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:10 // mir::Constant // + span: $DIR/inline-trait-method_2.rs:10:7: 10:8 // + literal: Const { ty: for<'r> fn(&'r dyn X) -> bool {::y}, val: Value(Scalar()) } } bb1: { + StorageDead(_4); // scope 1 at $DIR/inline-trait-method_2.rs:10:9: 10:10 StorageDead(_2); // scope 0 at $DIR/inline-trait-method_2.rs:5:11: 5:12 return; // scope 0 at $DIR/inline-trait-method_2.rs:6:2: 6:2 } diff --git a/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff b/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff index a8662b96566cc..35e4d4321b783 100644 --- a/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff +++ b/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff @@ -6,50 +6,52 @@ let _1: i32; // in scope 0 at $DIR/issue-73223.rs:2:9: 2:14 let mut _2: std::option::Option; // in scope 0 at $DIR/issue-73223.rs:2:23: 2:30 let mut _4: (&i32, &i32); // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _5: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _5: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _6: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _7: i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _8: &std::fmt::Arguments; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let _9: std::fmt::Arguments; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _10: &[std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let _11: [std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _12: (&&i32, &&i32); // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let _13: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _14: &&i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _7: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _8: i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _9: &std::fmt::Arguments; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let _10: std::fmt::Arguments; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _11: &[&str; 3]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _12: &[std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let _13: [std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _14: (&&i32, &&i32); // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL let _15: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _16: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _17: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _16: &&i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let _17: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _18: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _19: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL scope 1 { debug split => _1; // in scope 1 at $DIR/issue-73223.rs:2:9: 2:14 let _3: std::option::Option; // in scope 1 at $DIR/issue-73223.rs:7:9: 7:14 scope 3 { debug _prev => _3; // in scope 3 at $DIR/issue-73223.rs:7:9: 7:14 scope 4 { - debug left_val => _13; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - debug right_val => _15; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + debug left_val => _15; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + debug right_val => _17; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 5 { - debug arg0 => _20; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - debug arg1 => _23; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + debug arg0 => _22; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + debug arg1 => _25; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 6 { - debug x => _20; // in scope 6 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - debug f => _19; // in scope 6 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - let mut _18: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _19: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _20: &&i32; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL + debug x => _22; // in scope 6 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + debug f => _21; // in scope 6 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + let mut _20: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _21: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _22: &&i32; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL } scope 8 { - debug x => _23; // in scope 8 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - debug f => _22; // in scope 8 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - let mut _21: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _22: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _23: &&i32; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL + debug x => _25; // in scope 8 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + debug f => _24; // in scope 8 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + let mut _23: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _24: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _25: &&i32; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL } } scope 10 { - debug pieces => (_9.0: &[&str]); // in scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - debug args => _25; // in scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - let mut _24: std::option::Option<&[std::fmt::rt::v1::Argument]>; // in scope 10 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _25: &[std::fmt::ArgumentV1]; // in scope 10 at $SRC_DIR/std/src/macros.rs:LL:COL + debug pieces => (_10.0: &[&str]); // in scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + debug args => _27; // in scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + let mut _26: std::option::Option<&[std::fmt::rt::v1::Argument]>; // in scope 10 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _27: &[std::fmt::ArgumentV1]; // in scope 10 at $SRC_DIR/std/src/macros.rs:LL:COL } } } @@ -71,100 +73,102 @@ ((_3 as Some).0: i32) = _1; // scope 1 at $DIR/issue-73223.rs:7:22: 7:27 discriminant(_3) = 1; // scope 1 at $DIR/issue-73223.rs:7:17: 7:28 (_4.0: &i32) = &_1; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - (_4.1: &i32) = const main::promoted[1]; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _5 = const main::promoted[1]; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // ty::Const // + ty: &i32 // + val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main[0]), const_param_did: None }, [], Some(promoted[1])) // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: &i32, val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main[0]), const_param_did: None }, [], Some(promoted[1])) } - _13 = (_4.0: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _15 = (_4.1: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - StorageLive(_5); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + (_4.1: &i32) = move _5; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _15 = (_4.0: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _17 = (_4.1: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_6); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_7); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _7 = (*_13); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _6 = Eq(move _7, const 1_i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageLive(_8); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _8 = (*_15); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _7 = Eq(move _8, const 1_i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageDead(_8); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _6 = Not(move _7); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_7); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _5 = Not(move _6); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - StorageDead(_6); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - switchInt(_5) -> [false: bb1, otherwise: bb2]; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + switchInt(_6) -> [false: bb1, otherwise: bb2]; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL } bb1: { - StorageDead(_5); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageDead(_6); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _0 = const (); // scope 0 at $DIR/issue-73223.rs:1:11: 9:2 return; // scope 0 at $DIR/issue-73223.rs:9:2: 9:2 } bb2: { - (_9.0: &[&str]) = const main::promoted[0] as &[&str] (Pointer(Unsize)); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _11 = const main::promoted[0]; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // ty::Const // + ty: &[&str; 3] // + val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main[0]), const_param_did: None }, [], Some(promoted[0])) // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: &[&str; 3], val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main[0]), const_param_did: None }, [], Some(promoted[0])) } - StorageLive(_11); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - (_12.0: &&i32) = &_13; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - StorageLive(_14); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _14 = &_15; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - (_12.1: &&i32) = move _14; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - StorageDead(_14); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - _20 = (_12.0: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _23 = (_12.1: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _19 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + (_10.0: &[&str]) = move _11 as &[&str] (Pointer(Unsize)); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageLive(_13); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + (_14.0: &&i32) = &_15; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageLive(_16); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _16 = &_17; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + (_14.1: &&i32) = move _16; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + StorageDead(_16); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + _22 = (_14.0: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _25 = (_14.1: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _21 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar()) } - StorageLive(_18); // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _18 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _19) -> bb3; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageLive(_20); // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _20 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _21) -> bb3; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/fmt/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute:: fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar()) } } bb3: { - (_16.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _20) -> bb4; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + (_18.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _22) -> bb4; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/fmt/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(&&i32) -> &core::fmt::Opaque {std::intrinsics::transmute::<&&i32, &core::fmt::Opaque>}, val: Value(Scalar()) } } bb4: { - (_16.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _18; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - StorageDead(_18); // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _22 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + (_18.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _20; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageDead(_20); // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _24 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar()) } - StorageLive(_21); // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _21 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _22) -> bb5; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageLive(_23); // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _23 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _24) -> bb5; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/fmt/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute:: fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar()) } } bb5: { - (_17.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _23) -> bb6; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + (_19.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _25) -> bb6; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/fmt/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(&&i32) -> &core::fmt::Opaque {std::intrinsics::transmute::<&&i32, &core::fmt::Opaque>}, val: Value(Scalar()) } } bb6: { - (_17.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _21; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - StorageDead(_21); // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _11 = [move _16, move _17]; // scope 5 at $SRC_DIR/std/src/macros.rs:LL:COL - _10 = &_11; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - _25 = move _10 as &[std::fmt::ArgumentV1] (Pointer(Unsize)); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - StorageLive(_24); // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - discriminant(_24) = 0; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - (_9.1: std::option::Option<&[std::fmt::rt::v1::Argument]>) = move _24; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - (_9.2: &[std::fmt::ArgumentV1]) = move _25; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - StorageDead(_24); // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _8 = &_9; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - begin_panic_fmt(move _8); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + (_19.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _23; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageDead(_23); // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _13 = [move _18, move _19]; // scope 5 at $SRC_DIR/std/src/macros.rs:LL:COL + _12 = &_13; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + _27 = move _12 as &[std::fmt::ArgumentV1] (Pointer(Unsize)); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + StorageLive(_26); // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + discriminant(_26) = 0; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + (_10.1: std::option::Option<&[std::fmt::rt::v1::Argument]>) = move _26; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + (_10.2: &[std::fmt::ArgumentV1]) = move _27; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageDead(_26); // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _9 = &_10; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + begin_panic_fmt(move _9); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL // mir::Constant // + span: $SRC_DIR/std/src/macros.rs:LL:COL // + literal: Const { ty: for<'r, 's> fn(&'r std::fmt::Arguments<'s>) -> ! {std::rt::begin_panic_fmt}, val: Value(Scalar()) } diff --git a/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff b/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff index a8662b96566cc..35e4d4321b783 100644 --- a/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff +++ b/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff @@ -6,50 +6,52 @@ let _1: i32; // in scope 0 at $DIR/issue-73223.rs:2:9: 2:14 let mut _2: std::option::Option; // in scope 0 at $DIR/issue-73223.rs:2:23: 2:30 let mut _4: (&i32, &i32); // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _5: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _5: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _6: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _7: i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _8: &std::fmt::Arguments; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let _9: std::fmt::Arguments; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _10: &[std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let _11: [std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _12: (&&i32, &&i32); // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let _13: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _14: &&i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _7: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _8: i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _9: &std::fmt::Arguments; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let _10: std::fmt::Arguments; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _11: &[&str; 3]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _12: &[std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let _13: [std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _14: (&&i32, &&i32); // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL let _15: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - let mut _16: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _17: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _16: &&i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let _17: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + let mut _18: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _19: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/std/src/macros.rs:LL:COL scope 1 { debug split => _1; // in scope 1 at $DIR/issue-73223.rs:2:9: 2:14 let _3: std::option::Option; // in scope 1 at $DIR/issue-73223.rs:7:9: 7:14 scope 3 { debug _prev => _3; // in scope 3 at $DIR/issue-73223.rs:7:9: 7:14 scope 4 { - debug left_val => _13; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - debug right_val => _15; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + debug left_val => _15; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + debug right_val => _17; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 5 { - debug arg0 => _20; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - debug arg1 => _23; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + debug arg0 => _22; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + debug arg1 => _25; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 6 { - debug x => _20; // in scope 6 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - debug f => _19; // in scope 6 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - let mut _18: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _19: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _20: &&i32; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL + debug x => _22; // in scope 6 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + debug f => _21; // in scope 6 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + let mut _20: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _21: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _22: &&i32; // in scope 6 at $SRC_DIR/std/src/macros.rs:LL:COL } scope 8 { - debug x => _23; // in scope 8 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - debug f => _22; // in scope 8 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - let mut _21: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _22: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _23: &&i32; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL + debug x => _25; // in scope 8 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + debug f => _24; // in scope 8 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + let mut _23: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _24: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _25: &&i32; // in scope 8 at $SRC_DIR/std/src/macros.rs:LL:COL } } scope 10 { - debug pieces => (_9.0: &[&str]); // in scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - debug args => _25; // in scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - let mut _24: std::option::Option<&[std::fmt::rt::v1::Argument]>; // in scope 10 at $SRC_DIR/std/src/macros.rs:LL:COL - let mut _25: &[std::fmt::ArgumentV1]; // in scope 10 at $SRC_DIR/std/src/macros.rs:LL:COL + debug pieces => (_10.0: &[&str]); // in scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + debug args => _27; // in scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + let mut _26: std::option::Option<&[std::fmt::rt::v1::Argument]>; // in scope 10 at $SRC_DIR/std/src/macros.rs:LL:COL + let mut _27: &[std::fmt::ArgumentV1]; // in scope 10 at $SRC_DIR/std/src/macros.rs:LL:COL } } } @@ -71,100 +73,102 @@ ((_3 as Some).0: i32) = _1; // scope 1 at $DIR/issue-73223.rs:7:22: 7:27 discriminant(_3) = 1; // scope 1 at $DIR/issue-73223.rs:7:17: 7:28 (_4.0: &i32) = &_1; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - (_4.1: &i32) = const main::promoted[1]; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _5 = const main::promoted[1]; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // ty::Const // + ty: &i32 // + val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main[0]), const_param_did: None }, [], Some(promoted[1])) // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: &i32, val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main[0]), const_param_did: None }, [], Some(promoted[1])) } - _13 = (_4.0: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _15 = (_4.1: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - StorageLive(_5); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + (_4.1: &i32) = move _5; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _15 = (_4.0: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _17 = (_4.1: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_6); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_7); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _7 = (*_13); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _6 = Eq(move _7, const 1_i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageLive(_8); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _8 = (*_15); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _7 = Eq(move _8, const 1_i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageDead(_8); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _6 = Not(move _7); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_7); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _5 = Not(move _6); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - StorageDead(_6); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - switchInt(_5) -> [false: bb1, otherwise: bb2]; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + switchInt(_6) -> [false: bb1, otherwise: bb2]; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL } bb1: { - StorageDead(_5); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageDead(_6); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _0 = const (); // scope 0 at $DIR/issue-73223.rs:1:11: 9:2 return; // scope 0 at $DIR/issue-73223.rs:9:2: 9:2 } bb2: { - (_9.0: &[&str]) = const main::promoted[0] as &[&str] (Pointer(Unsize)); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _11 = const main::promoted[0]; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // ty::Const // + ty: &[&str; 3] // + val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main[0]), const_param_did: None }, [], Some(promoted[0])) // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: &[&str; 3], val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main[0]), const_param_did: None }, [], Some(promoted[0])) } - StorageLive(_11); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - (_12.0: &&i32) = &_13; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - StorageLive(_14); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _14 = &_15; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - (_12.1: &&i32) = move _14; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - StorageDead(_14); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - _20 = (_12.0: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _23 = (_12.1: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _19 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + (_10.0: &[&str]) = move _11 as &[&str] (Pointer(Unsize)); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageLive(_13); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + (_14.0: &&i32) = &_15; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + StorageLive(_16); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _16 = &_17; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + (_14.1: &&i32) = move _16; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + StorageDead(_16); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + _22 = (_14.0: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _25 = (_14.1: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _21 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar()) } - StorageLive(_18); // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _18 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _19) -> bb3; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageLive(_20); // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _20 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _21) -> bb3; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/fmt/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute:: fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar()) } } bb3: { - (_16.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _20) -> bb4; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + (_18.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _22) -> bb4; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/fmt/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(&&i32) -> &core::fmt::Opaque {std::intrinsics::transmute::<&&i32, &core::fmt::Opaque>}, val: Value(Scalar()) } } bb4: { - (_16.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _18; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - StorageDead(_18); // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _22 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + (_18.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _20; // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageDead(_20); // scope 7 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _24 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar()) } - StorageLive(_21); // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _21 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _22) -> bb5; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageLive(_23); // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _23 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _24) -> bb5; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/fmt/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute:: fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar()) } } bb5: { - (_17.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _23) -> bb6; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + (_19.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _25) -> bb6; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/fmt/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(&&i32) -> &core::fmt::Opaque {std::intrinsics::transmute::<&&i32, &core::fmt::Opaque>}, val: Value(Scalar()) } } bb6: { - (_17.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _21; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - StorageDead(_21); // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _11 = [move _16, move _17]; // scope 5 at $SRC_DIR/std/src/macros.rs:LL:COL - _10 = &_11; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - _25 = move _10 as &[std::fmt::ArgumentV1] (Pointer(Unsize)); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - StorageLive(_24); // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - discriminant(_24) = 0; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - (_9.1: std::option::Option<&[std::fmt::rt::v1::Argument]>) = move _24; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - (_9.2: &[std::fmt::ArgumentV1]) = move _25; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - StorageDead(_24); // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL - _8 = &_9; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL - begin_panic_fmt(move _8); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + (_19.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _23; // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageDead(_23); // scope 9 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _13 = [move _18, move _19]; // scope 5 at $SRC_DIR/std/src/macros.rs:LL:COL + _12 = &_13; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + _27 = move _12 as &[std::fmt::ArgumentV1] (Pointer(Unsize)); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + StorageLive(_26); // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + discriminant(_26) = 0; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + (_10.1: std::option::Option<&[std::fmt::rt::v1::Argument]>) = move _26; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + (_10.2: &[std::fmt::ArgumentV1]) = move _27; // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + StorageDead(_26); // scope 10 at $SRC_DIR/core/src/fmt/mod.rs:LL:COL + _9 = &_10; // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL + begin_panic_fmt(move _9); // scope 4 at $SRC_DIR/std/src/macros.rs:LL:COL // mir::Constant // + span: $SRC_DIR/std/src/macros.rs:LL:COL // + literal: Const { ty: for<'r, 's> fn(&'r std::fmt::Arguments<'s>) -> ! {std::rt::begin_panic_fmt}, val: Value(Scalar()) } diff --git a/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.32bit.diff b/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.32bit.diff index 68a113f94efda..165612a83c3c7 100644 --- a/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.32bit.diff +++ b/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.32bit.diff @@ -4,7 +4,7 @@ fn map(_1: Option>) -> Option> { debug x => _1; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:1:8: 1:9 let mut _0: std::option::Option>; // return place in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:1:31: 1:46 -- let mut _2: isize; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 + let mut _2: isize; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 - let _3: std::boxed::Box<()>; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:4:14: 4:15 - let mut _4: std::boxed::Box<()>; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:4:25: 4:26 - let mut _5: bool; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:1: 6:2 @@ -17,8 +17,21 @@ bb0: { - _5 = const false; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 - _5 = const true; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 -- _2 = discriminant(_1); // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 + _2 = discriminant(_1); // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 + switchInt(move _2) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 + } + + bb1: { _0 = move _1; // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:4:20: 4:27 + goto -> bb3; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:2:5: 5:6 + } + + bb2: { + discriminant(_0) = 0; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:17: 3:21 + goto -> bb3; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:2:5: 5:6 + } + + bb3: { - _6 = discriminant(_1); // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:1: 6:2 return; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:2: 6:2 } diff --git a/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.64bit.diff b/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.64bit.diff index 68a113f94efda..165612a83c3c7 100644 --- a/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.64bit.diff +++ b/src/test/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals.64bit.diff @@ -4,7 +4,7 @@ fn map(_1: Option>) -> Option> { debug x => _1; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:1:8: 1:9 let mut _0: std::option::Option>; // return place in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:1:31: 1:46 -- let mut _2: isize; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 + let mut _2: isize; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 - let _3: std::boxed::Box<()>; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:4:14: 4:15 - let mut _4: std::boxed::Box<()>; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:4:25: 4:26 - let mut _5: bool; // in scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:1: 6:2 @@ -17,8 +17,21 @@ bb0: { - _5 = const false; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 - _5 = const true; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 -- _2 = discriminant(_1); // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 + _2 = discriminant(_1); // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 + switchInt(move _2) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13 + } + + bb1: { _0 = move _1; // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:4:20: 4:27 + goto -> bb3; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:2:5: 5:6 + } + + bb2: { + discriminant(_0) = 0; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:17: 3:21 + goto -> bb3; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:2:5: 5:6 + } + + bb3: { - _6 = discriminant(_1); // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:1: 6:2 return; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:2: 6:2 }