From 77904ebac1ba3d76c49a3f5e2b895746cee58869 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Fri, 14 Jun 2024 12:14:32 +0200 Subject: [PATCH] add Miri tests --- tests/fail/storage-live-dead-var.rs | 14 ++++++++++++++ tests/fail/storage-live-dead-var.stderr | 15 +++++++++++++++ tests/fail/storage-live-resets-var.rs | 17 +++++++++++++++++ tests/fail/storage-live-resets-var.stderr | 15 +++++++++++++++ 4 files changed, 61 insertions(+) create mode 100644 tests/fail/storage-live-dead-var.rs create mode 100644 tests/fail/storage-live-dead-var.stderr create mode 100644 tests/fail/storage-live-resets-var.rs create mode 100644 tests/fail/storage-live-resets-var.stderr diff --git a/tests/fail/storage-live-dead-var.rs b/tests/fail/storage-live-dead-var.rs new file mode 100644 index 0000000000..83ab98d79d --- /dev/null +++ b/tests/fail/storage-live-dead-var.rs @@ -0,0 +1,14 @@ +#![feature(core_intrinsics, custom_mir)] +use std::intrinsics::mir::*; + +#[custom_mir(dialect = "runtime")] +fn main() { + mir! { + let val: i32; + { + val = 42; //~ERROR: accessing a dead local variable + StorageLive(val); // too late... (but needs to be here to make `val` not implicitly live) + Return() + } + } +} diff --git a/tests/fail/storage-live-dead-var.stderr b/tests/fail/storage-live-dead-var.stderr new file mode 100644 index 0000000000..ccc77b1c97 --- /dev/null +++ b/tests/fail/storage-live-dead-var.stderr @@ -0,0 +1,15 @@ +error: Undefined Behavior: accessing a dead local variable + --> $DIR/storage-live-dead-var.rs:LL:CC + | +LL | val = 42; + | ^^^^^^^^ accessing a dead local variable + | + = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior + = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information + = note: BACKTRACE: + = note: inside `main` at $DIR/storage-live-dead-var.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error + diff --git a/tests/fail/storage-live-resets-var.rs b/tests/fail/storage-live-resets-var.rs new file mode 100644 index 0000000000..bfdd9e7894 --- /dev/null +++ b/tests/fail/storage-live-resets-var.rs @@ -0,0 +1,17 @@ +#![feature(core_intrinsics, custom_mir)] +use std::intrinsics::mir::*; + +#[custom_mir(dialect = "runtime")] +fn main() { + mir! { + let val: i32; + let _val2: i32; + { + StorageLive(val); + val = 42; + StorageLive(val); // reset val to `uninit` + _val2 = val; //~ERROR: uninitialized + Return() + } + } +} diff --git a/tests/fail/storage-live-resets-var.stderr b/tests/fail/storage-live-resets-var.stderr new file mode 100644 index 0000000000..07d39cc9d6 --- /dev/null +++ b/tests/fail/storage-live-resets-var.stderr @@ -0,0 +1,15 @@ +error: Undefined Behavior: constructing invalid value: encountered uninitialized memory, but expected an integer + --> $DIR/storage-live-resets-var.rs:LL:CC + | +LL | _val2 = val; + | ^^^^^^^^^^^ constructing invalid value: encountered uninitialized memory, but expected an integer + | + = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior + = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information + = note: BACKTRACE: + = note: inside `main` at $DIR/storage-live-resets-var.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error +