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llvm-project/clang/test/Driver/cl-zc.cpp

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clang-cl: Various changes to /Zc: handling. * /Zc:trigraphs and /Zc:trigraphs- are now honored * /Zc:strictStrings is now honored * /Zc:auto is now honored/ignored (clang does the Right Thing for this already) Also add a dedicated test for the various /Zc: flags. clang-cl doesn't always agree with cl.exe on the default values for /Zc flags. For example, I think clang always behaves as if /Zc:inline is passed, and warns if the user explicitly passes /Zc:inline- Fixes PR21974. llvm-svn: 224791
2014-12-24 06:55:34 +08:00
// Don't attempt slash switches on msys bash.
// REQUIRES: shell-preserves-root
// Note: %s must be preceded by --, otherwise it may be interpreted as a
// command-line option, e.g. on Mac where %s is commonly under /Users.
// RUN: %clang_cl /c -### -- %s 2>&1 | FileCheck -check-prefix=TRIGRAPHS-DEFAULT %s
// cc1 will disable trigraphs for -fms-compatibility as long as -ftrigraphs
// isn't explicitly passed.
// TRIGRAPHS-DEFAULT-NOT: "-ftrigraphs"
// RUN: %clang_cl /c -### /Zc:trigraphs -- %s 2>&1 | FileCheck -check-prefix=TRIGRAPHS-ON %s
// TRIGRAPHS-ON: "-ftrigraphs"
// RUN: %clang_cl /c -### /Zc:trigraphs- -- %s 2>&1 | FileCheck -check-prefix=TRIGRAPHS-OFF %s
// TRIGRAPHS-OFF: "-fno-trigraphs"
// RUN: %clang_cl /c -### -- %s 2>&1 | FileCheck -check-prefix=STRICTSTRINGS-DEFAULT %s
// STRICTSTRINGS-DEFAULT-NOT: -Werror=c++11-compat-deprecated-writable-strings
// RUN: %clang_cl /c -### /Zc:strictStrings -- %s 2>&1 | FileCheck -check-prefix=STRICTSTRINGS-ON %s
// STRICTSTRINGS-ON: -Werror=c++11-compat-deprecated-writable-strings
// RUN: %clang_cl /c -### /Zc:strictStrings- -- %s 2>&1 | FileCheck -check-prefix=STRICTSTRINGS-OFF %s
// STRICTSTRINGS-OFF: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:foobar -- %s 2>&1 | FileCheck -check-prefix=FOOBAR-ON %s
// FOOBAR-ON: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:foobar- -- %s 2>&1 | FileCheck -check-prefix=FOOBAR-ON %s
// FOOBAR-OFF: argument unused during compilation
// These are ignored if enabled, and warn if disabled.
// RUN: %clang_cl /c -### /Zc:forScope -- %s 2>&1 | FileCheck -check-prefix=FORSCOPE-ON %s
// FORSCOPE-ON-NOT: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:forScope- -- %s 2>&1 | FileCheck -check-prefix=FORSCOPE-OFF %s
// FORSCOPE-OFF: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:wchar_t -- %s 2>&1 | FileCheck -check-prefix=WCHAR_T-ON %s
// WCHAR_T-ON-NOT: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:wchar_t- -- %s 2>&1 | FileCheck -check-prefix=WCHAR_T-OFF %s
// WCHAR_T-OFF: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:auto -- %s 2>&1 | FileCheck -check-prefix=AUTO-ON %s
// AUTO-ON-NOT: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:auto- -- %s 2>&1 | FileCheck -check-prefix=AUTO-OFF %s
// AUTO-OFF: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:inline -- %s 2>&1 | FileCheck -check-prefix=INLINE-ON %s
// INLINE-ON-NOT: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:inline- -- %s 2>&1 | FileCheck -check-prefix=INLINE-OFF %s
// INLINE-OFF: argument unused during compilation
// These never warn, but don't have an effect yet.
// RUN: %clang_cl /c -### /Zc:rvalueCast -- %s 2>&1 | FileCheck -check-prefix=RVALUECAST-ON %s
// RVALUECAST-ON-NOT: argument unused during compilation
// RUN: %clang_cl /c -### /Zc:rvalueCast- -- %s 2>&1 | FileCheck -check-prefix=RVALUECAST-OFF %s
// RVALUECAST-OFF: argument unused during compilation