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Crash when returning inside while-loop #1974
Description
When I try to run the following program it crashes with an error message from glibc.
fn main() {
let s = "hej";
while s != "" {
ret;
}
}
The error message is
*** glibc detected *** ./crash: double free or corruption (fasttop): 0x0000000001a2c7d0 ***
I tried running the program with valgrind. It then produced a different error message:
rust: fatal, 'live_allocs < 1' failed, ./src/rt/memory_region.cpp:54
If I change the loop to "while true", the program finishes without error.
Activity
brson commentedon Mar 14, 2012
It looks like this is due to the basic block containing the loop condition being a parent of the loop body, so when we run all the cleanups for
retorbreakit runs the condition's cleanups (a 2nd time).brson commentedon Mar 14, 2012
Fixed by aeb445b
Auto merge of rust-lang#6523 - brightly-salty:missing-panic-doc, r=fl…
Introduce `project` and stop merging all files generated by the compi…
Update the rustc_interface examples for current rustc (rust-lang#1974)
Update the rustc_interface examples for current rustc (rust-lang#1974)
Merge pull request rust-lang#1974 from JamieCunliffe/inline-always-neon
Merge rust-lang#1974
Auto merge of rust-lang#1974 - RalfJung:const, r=RalfJung