https://bugs.llvm.org/show_bug.cgi?id=38551
Bug ID: 38551
Summary: Run the rest of the compilation pipeline at --lto-O0
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Common Code Generator Code
Assignee: unassignedb...@nondot.org
Reporter: pe...@pcc.me.uk
CC: llvm-bugs@lists.llvm.org
We currently abort the compilation pipeline halfway through when we're
preparing for ThinLTO, expecting to run the remaining passes in the linker.
This doesn't happen at --lto-O0 which means that we miss out on a number of
optimization passes, notably the vectorizer. --lto-O0 should be almost
equivalent to compiling without LTO, so we need to run the rest of the
compilation pipeline in the linker at --lto-O0.
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