https://bugs.llvm.org/show_bug.cgi?id=40402
Bug ID: 40402
Summary: using optimizations yields different output
Product: clang
Version: 7.0
Hardware: Other
OS: Linux
Status: NEW
Severity: release blocker
Priority: P
Component: LLVM Codegen
Assignee: unassignedclangb...@nondot.org
Reporter: dvorea...@gmail.com
CC: llvm-bugs@lists.llvm.org, neeil...@live.com,
richard-l...@metafoo.co.uk
Created attachment 21364
--> https://bugs.llvm.org/attachment.cgi?id=21364&action=edit
test case
I wrote a simple encryption algorithm as home project on my android device
above termux.
In the main function I used it to encrypt and decrypt a message.
When I used -O0 It printed the original message, but with -O2, it gave me
totally different output.
clang version :
>>> clang -v
clang version 7.0.0 (tags/RELEASE_700/final)
Target: arm--linux-android
Thread model: posix
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