Implement checked Shl/Shr at MIR building.
This commit is contained in:
Camille GILLOT
parent
43ee4d15bf
commit
dd582bd7db
7 changed files with 109 additions and 107 deletions
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@ -12,13 +12,14 @@
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let mut _7: u32; // in scope 0 at $DIR/issue_101973.rs:+1:31: +1:52
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let mut _8: u32; // in scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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let mut _9: u32; // in scope 0 at $DIR/issue_101973.rs:+1:33: +1:39
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let mut _10: (u32, bool); // in scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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let mut _11: (u32, bool); // in scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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let mut _10: i32; // in scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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let mut _11: bool; // in scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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let mut _12: i32; // in scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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let mut _13: bool; // in scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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scope 1 (inlined imm8) { // at $DIR/issue_101973.rs:14:5: 14:17
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debug x => _1; // in scope 1 at $DIR/issue_101973.rs:5:13: 5:14
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let mut _12: u32; // in scope 1 at $DIR/issue_101973.rs:7:12: 7:27
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let mut _13: u32; // in scope 1 at $DIR/issue_101973.rs:7:12: 7:20
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let mut _14: (u32, bool); // in scope 1 at $DIR/issue_101973.rs:7:12: 7:20
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let mut _14: u32; // in scope 1 at $DIR/issue_101973.rs:7:12: 7:27
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let mut _15: u32; // in scope 1 at $DIR/issue_101973.rs:7:12: 7:20
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scope 2 {
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debug out => _4; // in scope 2 at $DIR/issue_101973.rs:6:9: 6:16
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}
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@ -32,43 +33,46 @@
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StorageLive(_2); // scope 0 at $DIR/issue_101973.rs:+1:5: +1:65
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StorageLive(_3); // scope 0 at $DIR/issue_101973.rs:+1:5: +1:58
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StorageLive(_4); // scope 0 at $DIR/issue_101973.rs:+1:5: +1:17
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StorageLive(_12); // scope 2 at $DIR/issue_101973.rs:7:12: 7:27
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StorageLive(_13); // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
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_14 = CheckedShr(_1, const 0_i32); // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
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assert(!move (_14.1: bool), "attempt to shift right by `{}`, which would overflow", const 0_i32) -> bb3; // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
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StorageLive(_14); // scope 2 at $DIR/issue_101973.rs:7:12: 7:27
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StorageLive(_15); // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
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_15 = Shr(_1, const 0_i32); // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
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_14 = BitAnd(move _15, const 255_u32); // scope 2 at $DIR/issue_101973.rs:7:12: 7:27
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StorageDead(_15); // scope 2 at $DIR/issue_101973.rs:7:26: 7:27
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_4 = BitOr(const 0_u32, move _14); // scope 2 at $DIR/issue_101973.rs:7:5: 7:27
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StorageDead(_14); // scope 2 at $DIR/issue_101973.rs:7:26: 7:27
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StorageLive(_6); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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StorageLive(_7); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:52
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StorageLive(_8); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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- _10 = BitAnd(const 8_i32, const -32_i32); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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- _11 = Ne(move _10, const 0_i32); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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- assert(!move _11, "attempt to shift right by `{}`, which would overflow", const 8_i32) -> bb1; // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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+ _10 = const 0_i32; // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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+ _11 = const false; // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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+ assert(!const false, "attempt to shift right by `{}`, which would overflow", const 8_i32) -> bb1; // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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}
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bb1: {
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_8 = move (_10.0: u32); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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_8 = Shr(_1, const 8_i32); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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_7 = BitAnd(move _8, const 15_u32); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:52
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StorageDead(_8); // scope 0 at $DIR/issue_101973.rs:+1:51: +1:52
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_11 = CheckedShl(_7, const 1_i32); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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assert(!move (_11.1: bool), "attempt to shift left by `{}`, which would overflow", const 1_i32) -> bb2; // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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- _12 = BitAnd(const 1_i32, const -32_i32); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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- _13 = Ne(move _12, const 0_i32); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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- assert(!move _13, "attempt to shift left by `{}`, which would overflow", const 1_i32) -> bb2; // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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+ _12 = const 0_i32; // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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+ _13 = const false; // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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+ assert(!const false, "attempt to shift left by `{}`, which would overflow", const 1_i32) -> bb2; // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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}
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bb2: {
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_6 = move (_11.0: u32); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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_6 = Shl(move _7, const 1_i32); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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StorageDead(_7); // scope 0 at $DIR/issue_101973.rs:+1:56: +1:57
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_3 = rotate_right::<u32>(_4, _6) -> bb4; // scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
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_3 = rotate_right::<u32>(_4, _6) -> bb3; // scope 3 at $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
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// mir::Constant
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// + span: $SRC_DIR/core/src/num/uint_macros.rs:LL:COL
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// + literal: Const { ty: extern "rust-intrinsic" fn(u32, u32) -> u32 {rotate_right::<u32>}, val: Value(<ZST>) }
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}
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bb3: {
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_13 = move (_14.0: u32); // scope 2 at $DIR/issue_101973.rs:7:12: 7:20
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_12 = BitAnd(move _13, const 255_u32); // scope 2 at $DIR/issue_101973.rs:7:12: 7:27
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StorageDead(_13); // scope 2 at $DIR/issue_101973.rs:7:26: 7:27
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_4 = BitOr(const 0_u32, move _12); // scope 2 at $DIR/issue_101973.rs:7:5: 7:27
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StorageDead(_12); // scope 2 at $DIR/issue_101973.rs:7:26: 7:27
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StorageLive(_6); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57
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StorageLive(_7); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:52
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StorageLive(_8); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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_10 = CheckedShr(_1, const 8_i32); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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assert(!move (_10.1: bool), "attempt to shift right by `{}`, which would overflow", const 8_i32) -> bb1; // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45
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}
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bb4: {
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StorageDead(_6); // scope 0 at $DIR/issue_101973.rs:+1:57: +1:58
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StorageDead(_4); // scope 0 at $DIR/issue_101973.rs:+1:57: +1:58
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_2 = move _3 as i32 (IntToInt); // scope 0 at $DIR/issue_101973.rs:+1:5: +1:65
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@ -39,19 +39,19 @@ error[E0080]: evaluation of constant value failed
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--> $DIR/offset_from_ub.rs:53:14
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LL | unsafe { ptr_offset_from(end_ptr, start_ptr) }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc18 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc17 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds
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error[E0080]: evaluation of constant value failed
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--> $DIR/offset_from_ub.rs:62:14
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LL | unsafe { ptr_offset_from(start_ptr, end_ptr) }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc21 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc20 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds
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error[E0080]: evaluation of constant value failed
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--> $DIR/offset_from_ub.rs:70:14
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LL | unsafe { ptr_offset_from(end_ptr, end_ptr) }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc24 has size 4, so pointer at offset 10 is out-of-bounds
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc23 has size 4, so pointer at offset 10 is out-of-bounds
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error[E0080]: evaluation of constant value failed
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--> $DIR/offset_from_ub.rs:79:14
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