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[Support] Prevent loss of file type flags when creating temporary #167939

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Merged
merged 9 commits into from
Nov 14, 2025
Merged

[Support] Prevent loss of file type flags when creating temporary #167939

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5472947
Prevent loss of file type flags when creating temporary
Nov 13, 2025
50a7686
syntax fix
Nov 13, 2025
ba2c421
add test for output encoding and consolidate code
Nov 13, 2025
6a1a42a
formatting
Nov 13, 2025
ef66e2d
formatting
Nov 13, 2025
97ce4a6
Fix test failure on Windows
Nov 14, 2025
e508384
Merge branch 'main' into tltao/vfs_tempfile_flags
tltao Nov 14, 2025
bd041f5
add comment
Nov 14, 2025
42160c6
remove trailing space
Nov 14, 2025
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9 changes: 8 additions & 1 deletion llvm/lib/Support/VirtualOutputBackends.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -269,8 +269,15 @@ Error OnDiskOutputFile::tryToCreateTemporary(std::optional<int> &FD) {
return createDirectoriesOnDemand(OutputPath, Config, [&]() -> Error {
int NewFD;
SmallString<128> UniquePath;
sys::fs::OpenFlags OF = sys::fs::OF_None;
if (Config.getTextWithCRLF())
OF |= sys::fs::OF_TextWithCRLF;
else if (Config.getText())
OF |= sys::fs::OF_Text;
if (Config.getAppend())
OF |= sys::fs::OF_Append;
if (std::error_code EC =
sys::fs::createUniqueFile(ModelPath, NewFD, UniquePath))
sys::fs::createUniqueFile(ModelPath, NewFD, UniquePath, OF))
return make_error<TempFileOutputError>(ModelPath, OutputPath, EC);

if (Config.getDiscardOnSignal())
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