[Win] Add opt-in Release size optimization - #8803
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Alex Sepkowski (alsepkow) wants to merge 1 commit into
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[Win] Add opt-in Release size optimization#8803Alex Sepkowski (alsepkow) wants to merge 1 commit into
Alex Sepkowski (alsepkow) wants to merge 1 commit into
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 0f4d0e10-e926-4bce-b36b-0abebc08f6dc
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Add an opt-in size policy for Windows Release builds.
DXC_OPTIMIZE_FOR_SIZE, defaulting toOFF, so existing developer and CI builds keep their current throughput-oriented behavior./Osto C and C++ Release flags when the option is enabled.OfficialRelease.cmakepreset; distribution pipelines can opt in without coupling unrelated release policy.Testing:
DXC_OPTIMIZE_FOR_SIZE=ON.llvm-tblgen.vcxprojcontains<FavorSizeOrSpeed>Size</FavorSizeOrSpeed>.llvm-tblgentarget successfully.This is a draft because the binary-size benefit should be weighed against DXC throughput before enabling it in a shipping pipeline. No release note is needed because the option is disabled by default and changes build configuration rather than compiler-visible behavior.