https://bugs.llvm.org/show_bug.cgi?id=43167
Bug ID: 43167
Summary: Bad unwind info on aarch64-windows with 9.0.0
Product: new-bugs
Version: 8.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: dma...@mozilla.com
CC: h...@chromium.org, htmldevelo...@gmail.com,
llvm-bugs@lists.llvm.org
Blocks: 42474
With the 9.0.0 release candidates, Firefox builds for aarch64-windows have bad
unwind info for a specific function (`xul!CallJSNative` as inlined into
`xul!js::InternalCallOrConstruct`) that breaks the OS's ability to unwind and
reach our crash reporter.
This doesn't happen with 8.0.0.
I will attempt to bisect and/or reduce this, but I can only reproduce this with
LTO and PGO enabled, which makes for a very slow build and means it may take a
long time.
Referenced Bugs:
https://bugs.llvm.org/show_bug.cgi?id=42474
[Bug 42474] [meta] 9.0.0 Release Blockers
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