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Build the STL with only /O2, not /Os #6110

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Merged
Stephan T. Lavavej (StephanTLavavej) merged 1 commit into from
Feb 28, 2026
Merged

Build the STL with only /O2, not /Os #6110

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4 changes: 1 addition & 3 deletions CMakeLists.txt
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Expand Up @@ -105,9 +105,7 @@ if(STL_USE_ANALYZE)
endif()

set(VCLIBS_DEBUG_OPTIONS "$<$<COMPILE_LANGUAGE:CXX>:/Od>")

# TRANSITION, GH-2108: Investigate building the STL with only /O2, not /Os.
set(VCLIBS_RELEASE_OPTIONS "$<$<COMPILE_LANGUAGE:CXX>:/O2;/Os>")
set(VCLIBS_RELEASE_OPTIONS "$<$<COMPILE_LANGUAGE:CXX>:/O2>")

if(CONFIGURE_TESTING)
add_subdirectory(tests)
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4 changes: 0 additions & 4 deletions stl/src/vector_algorithms.cpp
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Expand Up @@ -5,10 +5,6 @@
#error _M_CEE_PURE should not be defined when compiling vector_algorithms.cpp.
#endif

#ifndef _DEBUG
#pragma optimize("t", on) // TRANSITION, GH-2108: Override /Os with /Ot for this TU before any function definitions
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#endif

#include <__msvc_minmax.hpp>
#include <cstdint>
#include <cstring>
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