https://llvm.org/bugs/show_bug.cgi?id=28755
Bug ID: 28755
Summary: Codegen faiilure: ran out of registers during register
allocation
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: pir...@google.com
CC: llvm-bugs@lists.llvm.org, srhi...@google.com
Classification: Unclassified
Created attachment 16832
--> https://llvm.org/bugs/attachment.cgi?id=16832&action=edit
Zip archive with files to reproduce the crash
File class_linker.cc in a pending AOSP CL
(https://android-review.googlesource.com/#/c/251065/1/runtime/class_linker.cc)
fails CodeGen with the following error:
fatal error: error in backend: ran out of registers during register allocation
clang++: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
Android clang version 3.8.271374 (based on LLVM 3.8.271374)
Target: i686--linux-android
Thread model: posix
InstalledDir: prebuilts/clang/host/linux-x86/clang-3016494/bin
clang++: note: diagnostic msg: PLEASE submit a bug report to
http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and
associated run script.
clang++: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang++: note: diagnostic msg: /tmp/class_linker-1e703f.cpp
clang++: note: diagnostic msg: /tmp/class_linker-1e703f.sh
clang++: note: diagnostic msg:
********************
A .zip file with class_linker-1e703f.cpp and class_linker-1e703f.sh is
attached.
Also attached is a reduced IR from bugpoint. With this IR, the following
command reproduces the crash:
llc class_linker-reduced.ll
Note that while the original source has inline assembly, the reduced test case
doesn't.
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