diff options
| -rw-r--r-- | src/librustc_mir/transform/const_prop.rs | 16 | ||||
| -rw-r--r-- | src/test/ui/consts/const-err2.rs | 3 | ||||
| -rw-r--r-- | src/test/ui/consts/const-err2.stderr | 28 | ||||
| -rw-r--r-- | src/test/ui/consts/const-eval/promoted_errors.rs | 1 | ||||
| -rw-r--r-- | src/test/ui/consts/const-eval/promoted_errors.stderr | 30 | ||||
| -rw-r--r-- | src/test/ui/issues/issue-8171-default-method-self-inherit-builtin-trait.stderr | 6 | ||||
| -rw-r--r-- | src/test/ui/issues/issue-8460-const.rs | 10 | ||||
| -rw-r--r-- | src/test/ui/issues/issue-8460-const.stderr | 120 |
8 files changed, 67 insertions, 147 deletions
diff --git a/src/librustc_mir/transform/const_prop.rs b/src/librustc_mir/transform/const_prop.rs index 00118c05c94..37e14004ce8 100644 --- a/src/librustc_mir/transform/const_prop.rs +++ b/src/librustc_mir/transform/const_prop.rs @@ -6,7 +6,7 @@ use std::cell::Cell; use rustc::hir::def::DefKind; use rustc::mir::{ AggregateKind, Constant, Location, Place, PlaceBase, Body, Operand, Rvalue, - Local, NullOp, StatementKind, Statement, LocalKind, Static, StaticKind, + Local, NullOp, UnOp, StatementKind, Statement, LocalKind, Static, StaticKind, TerminatorKind, Terminator, ClearCrossCrate, SourceInfo, BinOp, ProjectionElem, SourceScope, SourceScopeLocalData, LocalDecl, }; @@ -405,8 +405,20 @@ impl<'mir, 'tcx> ConstPropagator<'mir, 'tcx> { } let arg = self.eval_operand(arg, source_info)?; + let is_release_mode = self.tcx.sess.opts.debugging_opts.mir_opt_level >= 2; let val = self.use_ecx(source_info, |this| { let prim = this.ecx.read_immediate(arg)?; + match op { + UnOp::Neg => { + if is_release_mode + && prim.to_bits()? == (1 << (prim.layout.size.bits() - 1)) { + throw_panic!(OverflowNeg) + } + } + UnOp::Not => { + // Cannot overflow + } + } // Now run the actual operation. this.ecx.unary_op(op, prim) })?; @@ -473,7 +485,7 @@ impl<'mir, 'tcx> ConstPropagator<'mir, 'tcx> { Scalar::from_bool(overflow).into(), ) } else { - if overflow { + if self.tcx.sess.opts.debugging_opts.mir_opt_level >= 2 && overflow { let err = err_panic!(Overflow(op)).into(); let _: Option<()> = self.use_ecx(source_info, |_| Err(err)); return None; diff --git a/src/test/ui/consts/const-err2.rs b/src/test/ui/consts/const-err2.rs index 5aab1972a9b..6da6addf60a 100644 --- a/src/test/ui/consts/const-err2.rs +++ b/src/test/ui/consts/const-err2.rs @@ -14,11 +14,8 @@ fn black_box<T>(_: T) { fn main() { let a = -std::i8::MIN; let b = 200u8 + 200u8 + 200u8; - //~^ ERROR const_err let c = 200u8 * 4; - //~^ ERROR const_err let d = 42u8 - (42u8 + 1); - //~^ ERROR const_err let _e = [5u8][1]; //~^ ERROR const_err black_box(a); diff --git a/src/test/ui/consts/const-err2.stderr b/src/test/ui/consts/const-err2.stderr index 63d037764a1..30855fd215f 100644 --- a/src/test/ui/consts/const-err2.stderr +++ b/src/test/ui/consts/const-err2.stderr @@ -1,8 +1,8 @@ -error: this expression will panic at runtime - --> $DIR/const-err2.rs:16:13 +error: index out of bounds: the len is 1 but the index is 1 + --> $DIR/const-err2.rs:19:14 | -LL | let b = 200u8 + 200u8 + 200u8; - | ^^^^^^^^^^^^^ attempt to add with overflow +LL | let _e = [5u8][1]; + | ^^^^^^^^ | note: lint level defined here --> $DIR/const-err2.rs:8:9 @@ -10,23 +10,5 @@ note: lint level defined here LL | #![deny(const_err)] | ^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/const-err2.rs:18:13 - | -LL | let c = 200u8 * 4; - | ^^^^^^^^^ attempt to multiply with overflow - -error: this expression will panic at runtime - --> $DIR/const-err2.rs:20:13 - | -LL | let d = 42u8 - (42u8 + 1); - | ^^^^^^^^^^^^^^^^^ attempt to subtract with overflow - -error: index out of bounds: the len is 1 but the index is 1 - --> $DIR/const-err2.rs:22:14 - | -LL | let _e = [5u8][1]; - | ^^^^^^^^ - -error: aborting due to 4 previous errors +error: aborting due to previous error diff --git a/src/test/ui/consts/const-eval/promoted_errors.rs b/src/test/ui/consts/const-eval/promoted_errors.rs index cd989731452..a9a7a66fe61 100644 --- a/src/test/ui/consts/const-eval/promoted_errors.rs +++ b/src/test/ui/consts/const-eval/promoted_errors.rs @@ -5,7 +5,6 @@ fn main() { println!("{}", 0u32 - 1); let _x = 0u32 - 1; - //~^ ERROR this expression will panic at runtime [const_err] println!("{}", 1/(1-1)); //~^ ERROR attempt to divide by zero [const_err] //~| ERROR reaching this expression at runtime will panic or abort [const_err] diff --git a/src/test/ui/consts/const-eval/promoted_errors.stderr b/src/test/ui/consts/const-eval/promoted_errors.stderr index 40d5c73e866..3940fa13d78 100644 --- a/src/test/ui/consts/const-eval/promoted_errors.stderr +++ b/src/test/ui/consts/const-eval/promoted_errors.stderr @@ -1,8 +1,8 @@ -error: this expression will panic at runtime - --> $DIR/promoted_errors.rs:7:14 +error: attempt to divide by zero + --> $DIR/promoted_errors.rs:8:20 | -LL | let _x = 0u32 - 1; - | ^^^^^^^^ attempt to subtract with overflow +LL | println!("{}", 1/(1-1)); + | ^^^^^^^ | note: lint level defined here --> $DIR/promoted_errors.rs:3:9 @@ -10,53 +10,47 @@ note: lint level defined here LL | #![deny(const_err)] | ^^^^^^^^^ -error: attempt to divide by zero - --> $DIR/promoted_errors.rs:9:20 - | -LL | println!("{}", 1/(1-1)); - | ^^^^^^^ - error: reaching this expression at runtime will panic or abort - --> $DIR/promoted_errors.rs:9:20 + --> $DIR/promoted_errors.rs:8:20 | LL | println!("{}", 1/(1-1)); | ^^^^^^^ attempt to divide by zero error: attempt to divide by zero - --> $DIR/promoted_errors.rs:12:14 + --> $DIR/promoted_errors.rs:11:14 | LL | let _x = 1/(1-1); | ^^^^^^^ error: this expression will panic at runtime - --> $DIR/promoted_errors.rs:12:14 + --> $DIR/promoted_errors.rs:11:14 | LL | let _x = 1/(1-1); | ^^^^^^^ attempt to divide by zero error: attempt to divide by zero - --> $DIR/promoted_errors.rs:15:20 + --> $DIR/promoted_errors.rs:14:20 | LL | println!("{}", 1/(false as u32)); | ^^^^^^^^^^^^^^^^ error: reaching this expression at runtime will panic or abort - --> $DIR/promoted_errors.rs:15:20 + --> $DIR/promoted_errors.rs:14:20 | LL | println!("{}", 1/(false as u32)); | ^^^^^^^^^^^^^^^^ attempt to divide by zero error: attempt to divide by zero - --> $DIR/promoted_errors.rs:18:14 + --> $DIR/promoted_errors.rs:17:14 | LL | let _x = 1/(false as u32); | ^^^^^^^^^^^^^^^^ error: this expression will panic at runtime - --> $DIR/promoted_errors.rs:18:14 + --> $DIR/promoted_errors.rs:17:14 | LL | let _x = 1/(false as u32); | ^^^^^^^^^^^^^^^^ attempt to divide by zero -error: aborting due to 9 previous errors +error: aborting due to 8 previous errors diff --git a/src/test/ui/issues/issue-8171-default-method-self-inherit-builtin-trait.stderr b/src/test/ui/issues/issue-8171-default-method-self-inherit-builtin-trait.stderr new file mode 100644 index 00000000000..5160c9e72a9 --- /dev/null +++ b/src/test/ui/issues/issue-8171-default-method-self-inherit-builtin-trait.stderr @@ -0,0 +1,6 @@ +error: failed to remove $TEST_BUILD_DIR/issues/issue-8171-default-method-self-inherit-builtin-trait/issue-8171-default-method-self-inherit-builtin-trait.issue_8171_default_method_self_inherit_builtin_trait.7rcbfp3g-cgu.0.rcgu.o: 指定されたパスが見つかりません。 (os error 3) + +error: failed to remove $TEST_BUILD_DIR/issues/issue-8171-default-method-self-inherit-builtin-trait/issue-8171-default-method-self-inherit-builtin-trait.issue_8171_default_method_self_inherit_builtin_trait.7rcbfp3g-cgu.1.rcgu.o: 指定されたパスが見つかりません。 (os error 3) + +error: aborting due to 2 previous errors + diff --git a/src/test/ui/issues/issue-8460-const.rs b/src/test/ui/issues/issue-8460-const.rs index 611d280f774..6a5b98fa9b1 100644 --- a/src/test/ui/issues/issue-8460-const.rs +++ b/src/test/ui/issues/issue-8460-const.rs @@ -6,19 +6,14 @@ use std::thread; fn main() { assert!(thread::spawn(move|| { isize::MIN / -1; }).join().is_err()); //~^ ERROR attempt to divide with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { i8::MIN / -1; }).join().is_err()); //~^ ERROR attempt to divide with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { i16::MIN / -1; }).join().is_err()); //~^ ERROR attempt to divide with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { i32::MIN / -1; }).join().is_err()); //~^ ERROR attempt to divide with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { i64::MIN / -1; }).join().is_err()); //~^ ERROR attempt to divide with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { 1isize / 0; }).join().is_err()); //~^ ERROR attempt to divide by zero //~| ERROR this expression will panic at runtime @@ -36,19 +31,14 @@ fn main() { //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { isize::MIN % -1; }).join().is_err()); //~^ ERROR attempt to calculate the remainder with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { i8::MIN % -1; }).join().is_err()); //~^ ERROR attempt to calculate the remainder with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { i16::MIN % -1; }).join().is_err()); //~^ ERROR attempt to calculate the remainder with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { i32::MIN % -1; }).join().is_err()); //~^ ERROR attempt to calculate the remainder with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { i64::MIN % -1; }).join().is_err()); //~^ ERROR attempt to calculate the remainder with overflow - //~| ERROR this expression will panic at runtime assert!(thread::spawn(move|| { 1isize % 0; }).join().is_err()); //~^ ERROR attempt to calculate the remainder with a divisor of zero //~| ERROR this expression will panic at runtime diff --git a/src/test/ui/issues/issue-8460-const.stderr b/src/test/ui/issues/issue-8460-const.stderr index 31b1da4f804..b9fbf0bdaa6 100644 --- a/src/test/ui/issues/issue-8460-const.stderr +++ b/src/test/ui/issues/issue-8460-const.stderr @@ -10,239 +10,179 @@ note: lint level defined here LL | #![deny(const_err)] | ^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:7:36 - | -LL | assert!(thread::spawn(move|| { isize::MIN / -1; }).join().is_err()); - | ^^^^^^^^^^^^^^^ attempt to divide with overflow - error: attempt to divide with overflow - --> $DIR/issue-8460-const.rs:10:36 + --> $DIR/issue-8460-const.rs:9:36 | LL | assert!(thread::spawn(move|| { i8::MIN / -1; }).join().is_err()); | ^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:10:36 - | -LL | assert!(thread::spawn(move|| { i8::MIN / -1; }).join().is_err()); - | ^^^^^^^^^^^^ attempt to divide with overflow - error: attempt to divide with overflow - --> $DIR/issue-8460-const.rs:13:36 + --> $DIR/issue-8460-const.rs:11:36 | LL | assert!(thread::spawn(move|| { i16::MIN / -1; }).join().is_err()); | ^^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:13:36 - | -LL | assert!(thread::spawn(move|| { i16::MIN / -1; }).join().is_err()); - | ^^^^^^^^^^^^^ attempt to divide with overflow - error: attempt to divide with overflow - --> $DIR/issue-8460-const.rs:16:36 + --> $DIR/issue-8460-const.rs:13:36 | LL | assert!(thread::spawn(move|| { i32::MIN / -1; }).join().is_err()); | ^^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:16:36 - | -LL | assert!(thread::spawn(move|| { i32::MIN / -1; }).join().is_err()); - | ^^^^^^^^^^^^^ attempt to divide with overflow - error: attempt to divide with overflow - --> $DIR/issue-8460-const.rs:19:36 + --> $DIR/issue-8460-const.rs:15:36 | LL | assert!(thread::spawn(move|| { i64::MIN / -1; }).join().is_err()); | ^^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:19:36 - | -LL | assert!(thread::spawn(move|| { i64::MIN / -1; }).join().is_err()); - | ^^^^^^^^^^^^^ attempt to divide with overflow - error: attempt to divide by zero - --> $DIR/issue-8460-const.rs:22:36 + --> $DIR/issue-8460-const.rs:17:36 | LL | assert!(thread::spawn(move|| { 1isize / 0; }).join().is_err()); | ^^^^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:22:36 + --> $DIR/issue-8460-const.rs:17:36 | LL | assert!(thread::spawn(move|| { 1isize / 0; }).join().is_err()); | ^^^^^^^^^^ attempt to divide by zero error: attempt to divide by zero - --> $DIR/issue-8460-const.rs:25:36 + --> $DIR/issue-8460-const.rs:20:36 | LL | assert!(thread::spawn(move|| { 1i8 / 0; }).join().is_err()); | ^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:25:36 + --> $DIR/issue-8460-const.rs:20:36 | LL | assert!(thread::spawn(move|| { 1i8 / 0; }).join().is_err()); | ^^^^^^^ attempt to divide by zero error: attempt to divide by zero - --> $DIR/issue-8460-const.rs:28:36 + --> $DIR/issue-8460-const.rs:23:36 | LL | assert!(thread::spawn(move|| { 1i16 / 0; }).join().is_err()); | ^^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:28:36 + --> $DIR/issue-8460-const.rs:23:36 | LL | assert!(thread::spawn(move|| { 1i16 / 0; }).join().is_err()); | ^^^^^^^^ attempt to divide by zero error: attempt to divide by zero - --> $DIR/issue-8460-const.rs:31:36 + --> $DIR/issue-8460-const.rs:26:36 | LL | assert!(thread::spawn(move|| { 1i32 / 0; }).join().is_err()); | ^^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:31:36 + --> $DIR/issue-8460-const.rs:26:36 | LL | assert!(thread::spawn(move|| { 1i32 / 0; }).join().is_err()); | ^^^^^^^^ attempt to divide by zero error: attempt to divide by zero - --> $DIR/issue-8460-const.rs:34:36 + --> $DIR/issue-8460-const.rs:29:36 | LL | assert!(thread::spawn(move|| { 1i64 / 0; }).join().is_err()); | ^^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:34:36 + --> $DIR/issue-8460-const.rs:29:36 | LL | assert!(thread::spawn(move|| { 1i64 / 0; }).join().is_err()); | ^^^^^^^^ attempt to divide by zero error: attempt to calculate the remainder with overflow - --> $DIR/issue-8460-const.rs:37:36 + --> $DIR/issue-8460-const.rs:32:36 | LL | assert!(thread::spawn(move|| { isize::MIN % -1; }).join().is_err()); | ^^^^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:37:36 - | -LL | assert!(thread::spawn(move|| { isize::MIN % -1; }).join().is_err()); - | ^^^^^^^^^^^^^^^ attempt to calculate the remainder with overflow - error: attempt to calculate the remainder with overflow - --> $DIR/issue-8460-const.rs:40:36 + --> $DIR/issue-8460-const.rs:34:36 | LL | assert!(thread::spawn(move|| { i8::MIN % -1; }).join().is_err()); | ^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:40:36 - | -LL | assert!(thread::spawn(move|| { i8::MIN % -1; }).join().is_err()); - | ^^^^^^^^^^^^ attempt to calculate the remainder with overflow - error: attempt to calculate the remainder with overflow - --> $DIR/issue-8460-const.rs:43:36 + --> $DIR/issue-8460-const.rs:36:36 | LL | assert!(thread::spawn(move|| { i16::MIN % -1; }).join().is_err()); | ^^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:43:36 - | -LL | assert!(thread::spawn(move|| { i16::MIN % -1; }).join().is_err()); - | ^^^^^^^^^^^^^ attempt to calculate the remainder with overflow - error: attempt to calculate the remainder with overflow - --> $DIR/issue-8460-const.rs:46:36 + --> $DIR/issue-8460-const.rs:38:36 | LL | assert!(thread::spawn(move|| { i32::MIN % -1; }).join().is_err()); | ^^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:46:36 - | -LL | assert!(thread::spawn(move|| { i32::MIN % -1; }).join().is_err()); - | ^^^^^^^^^^^^^ attempt to calculate the remainder with overflow - error: attempt to calculate the remainder with overflow - --> $DIR/issue-8460-const.rs:49:36 + --> $DIR/issue-8460-const.rs:40:36 | LL | assert!(thread::spawn(move|| { i64::MIN % -1; }).join().is_err()); | ^^^^^^^^^^^^^ -error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:49:36 - | -LL | assert!(thread::spawn(move|| { i64::MIN % -1; }).join().is_err()); - | ^^^^^^^^^^^^^ attempt to calculate the remainder with overflow - error: attempt to calculate the remainder with a divisor of zero - --> $DIR/issue-8460-const.rs:52:36 + --> $DIR/issue-8460-const.rs:42:36 | LL | assert!(thread::spawn(move|| { 1isize % 0; }).join().is_err()); | ^^^^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:52:36 + --> $DIR/issue-8460-const.rs:42:36 | LL | assert!(thread::spawn(move|| { 1isize % 0; }).join().is_err()); | ^^^^^^^^^^ attempt to calculate the remainder with a divisor of zero error: attempt to calculate the remainder with a divisor of zero - --> $DIR/issue-8460-const.rs:55:36 + --> $DIR/issue-8460-const.rs:45:36 | LL | assert!(thread::spawn(move|| { 1i8 % 0; }).join().is_err()); | ^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:55:36 + --> $DIR/issue-8460-const.rs:45:36 | LL | assert!(thread::spawn(move|| { 1i8 % 0; }).join().is_err()); | ^^^^^^^ attempt to calculate the remainder with a divisor of zero error: attempt to calculate the remainder with a divisor of zero - --> $DIR/issue-8460-const.rs:58:36 + --> $DIR/issue-8460-const.rs:48:36 | LL | assert!(thread::spawn(move|| { 1i16 % 0; }).join().is_err()); | ^^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:58:36 + --> $DIR/issue-8460-const.rs:48:36 | LL | assert!(thread::spawn(move|| { 1i16 % 0; }).join().is_err()); | ^^^^^^^^ attempt to calculate the remainder with a divisor of zero error: attempt to calculate the remainder with a divisor of zero - --> $DIR/issue-8460-const.rs:61:36 + --> $DIR/issue-8460-const.rs:51:36 | LL | assert!(thread::spawn(move|| { 1i32 % 0; }).join().is_err()); | ^^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:61:36 + --> $DIR/issue-8460-const.rs:51:36 | LL | assert!(thread::spawn(move|| { 1i32 % 0; }).join().is_err()); | ^^^^^^^^ attempt to calculate the remainder with a divisor of zero error: attempt to calculate the remainder with a divisor of zero - --> $DIR/issue-8460-const.rs:64:36 + --> $DIR/issue-8460-const.rs:54:36 | LL | assert!(thread::spawn(move|| { 1i64 % 0; }).join().is_err()); | ^^^^^^^^ error: this expression will panic at runtime - --> $DIR/issue-8460-const.rs:64:36 + --> $DIR/issue-8460-const.rs:54:36 | LL | assert!(thread::spawn(move|| { 1i64 % 0; }).join().is_err()); | ^^^^^^^^ attempt to calculate the remainder with a divisor of zero -error: aborting due to 40 previous errors +error: aborting due to 30 previous errors |