Hi rnk, It seems msbuild.exe passes /Zi by default in release builds, and as far as I can tell, it should map nicely to -fbuiltin.
http://llvm-reviews.chandlerc.com/D1328 Files: include/clang/Driver/CLCompatOptions.td test/Driver/cl-options.c Index: include/clang/Driver/CLCompatOptions.td =================================================================== --- include/clang/Driver/CLCompatOptions.td +++ include/clang/Driver/CLCompatOptions.td @@ -77,6 +77,10 @@ def _SLASH_WX_ : CLFlag<"WX-">, HelpText<"Do not treat warnings as errors">, Alias<W_Joined>, AliasArgs<["no-error"]>; def _SLASH_w_flag : CLFlag<"w">, HelpText<"Disable all warnings">, Alias<w>; +def _SLASH_Zi : CLFlag<"Zi">, HelpText<"Enable use of builtin functions">, + Alias<fbuiltin>; +def _SLASH_Zi_ : CLFlag<"Zi-">, HelpText<"Disable use of builtin functions">, + Alias<fno_builtin>; def _SLASH_Zs : CLFlag<"Zs">, HelpText<"Syntax-check only">, Alias<fsyntax_only>; @@ -132,4 +136,3 @@ def _SLASH_w : CLJoined<"w">; def _SLASH_Zc : CLJoined<"Zc:">; def _SLASH_ZI : CLFlag<"ZI">; -def _SLASH_Zi : CLFlag<"Zi">; Index: test/Driver/cl-options.c =================================================================== --- test/Driver/cl-options.c +++ test/Driver/cl-options.c @@ -76,6 +76,12 @@ // RUN: %clang_cl /w -### -- %s 2>&1 | FileCheck -check-prefix=w %s // w: -w +// RUN: %clang_cl /Zi- /Zi -### -- %s 2>&1 | FileCheck -check-prefix=Zi %s +// Zi-NOT: -fno-builtin + +// RUN: %clang_cl /Zi- -### -- %s 2>&1 | FileCheck -check-prefix=Zi_ %s +// Zi_: -fno-builtin + // RUN: %clang_cl /Zs -### -- %s 2>&1 | FileCheck -check-prefix=Zs %s // Zs: -fsyntax-only
Index: include/clang/Driver/CLCompatOptions.td =================================================================== --- include/clang/Driver/CLCompatOptions.td +++ include/clang/Driver/CLCompatOptions.td @@ -77,6 +77,10 @@ def _SLASH_WX_ : CLFlag<"WX-">, HelpText<"Do not treat warnings as errors">, Alias<W_Joined>, AliasArgs<["no-error"]>; def _SLASH_w_flag : CLFlag<"w">, HelpText<"Disable all warnings">, Alias<w>; +def _SLASH_Zi : CLFlag<"Zi">, HelpText<"Enable use of builtin functions">, + Alias<fbuiltin>; +def _SLASH_Zi_ : CLFlag<"Zi-">, HelpText<"Disable use of builtin functions">, + Alias<fno_builtin>; def _SLASH_Zs : CLFlag<"Zs">, HelpText<"Syntax-check only">, Alias<fsyntax_only>; @@ -132,4 +136,3 @@ def _SLASH_w : CLJoined<"w">; def _SLASH_Zc : CLJoined<"Zc:">; def _SLASH_ZI : CLFlag<"ZI">; -def _SLASH_Zi : CLFlag<"Zi">; Index: test/Driver/cl-options.c =================================================================== --- test/Driver/cl-options.c +++ test/Driver/cl-options.c @@ -76,6 +76,12 @@ // RUN: %clang_cl /w -### -- %s 2>&1 | FileCheck -check-prefix=w %s // w: -w +// RUN: %clang_cl /Zi- /Zi -### -- %s 2>&1 | FileCheck -check-prefix=Zi %s +// Zi-NOT: -fno-builtin + +// RUN: %clang_cl /Zi- -### -- %s 2>&1 | FileCheck -check-prefix=Zi_ %s +// Zi_: -fno-builtin + // RUN: %clang_cl /Zs -### -- %s 2>&1 | FileCheck -check-prefix=Zs %s // Zs: -fsyntax-only
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