[llvm-bugs] [Bug 44227] New: Segmentation fault with -ffast-math when compiling GraphViz (lab.c)
via llvm-bugs
llvm-bugs at lists.llvm.org
Thu Dec 5 01:50:26 PST 2019
https://bugs.llvm.org/show_bug.cgi?id=44227
Bug ID: 44227
Summary: Segmentation fault with -ffast-math when compiling
GraphViz (lab.c)
Product: clang
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: LLVM Codegen
Assignee: unassignedclangbugs at nondot.org
Reporter: gabriel-llvm-bugs at mastergk.de
CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
richard-llvm at metafoo.co.uk
Created attachment 22896
--> https://bugs.llvm.org/attachment.cgi?id=22896&action=edit
Source file created by crash reporter
When compiling Viz.js (GraphViz for the web) the compiler segfaults while
compiling "lab.c" of GraphViz. I reduced the problem to:
emcc -ffast-math lab.c
> emcc --version
emcc (Emscripten gcc/clang-like replacement) 1.39.1 ((unknown revision))
> /usr/lib/emscripten-llvm/clang --version
clang version 10.0.0 (/srcdest/llvm-project
411f1885b655ea622fe124a87a6eadfd988d7a5e)
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