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Merge #1006

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1006: fix 1005 panic sub overflow r=MarkMcCaskey a=pventuzelo

# Description

Fix issue https://github.com/wasmerio/wasmer/issues/1005

# Review

- [x] Add a short description of the the change to the CHANGELOG.md file


Co-authored-by: Patrick Ventuzelo <ventuzelo.patrick@gmail.com>
Co-authored-by: Patrick Ventuzelo <9038181+pventuzelo@users.noreply.github.com>
This commit is contained in:
bors[bot]
2019-11-27 00:36:29 +00:00
committed by GitHub
parent 53f0a9cecf bb16547567
commit f6f8780934
2 changed files with 7 additions and 6 deletions
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1
CHANGELOG.md
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@ -2,6 +2,7 @@
## **[Unreleased]** ## **[Unreleased]**
- [#1006](https://github.com/wasmerio/wasmer/pull/1006) Fix minor panic issue when `wasmer::compile_with` called with llvm backend
- [#1009](https://github.com/wasmerio/wasmer/pull/1009) Enable LLVM verifier for all tests, add new llvm-backend-tests crate. - [#1009](https://github.com/wasmerio/wasmer/pull/1009) Enable LLVM verifier for all tests, add new llvm-backend-tests crate.
## 0.11.0 - 2019-11-22 ## 0.11.0 - 2019-11-22

8
lib/llvm-backend/src/state.rs
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@ -336,12 +336,12 @@ impl State {
&self, &self,
n: usize, n: usize,
) -> Result<&[(BasicValueEnum, ExtraInfo)], BinaryReaderError> { ) -> Result<&[(BasicValueEnum, ExtraInfo)], BinaryReaderError> {
self.stack let new_len = self.stack.len().checked_sub(n).ok_or(BinaryReaderError {
.get(self.stack.len() - n..)
.ok_or(BinaryReaderError {
message: "invalid value stack", message: "invalid value stack",
offset: -1isize as usize, offset: -1isize as usize,
}) })?;
Ok(&self.stack[new_len..])
} }
pub fn popn_save_extra( pub fn popn_save_extra(