d851833c9a
Summary: MSVC's driver accepts all unknown arguments but warns about them. clang by default rejects all unknown arguments. This causes issues specifically with build systems such as autoconf which liberally pass things such as $LDFLAGS to the compiler and expect everything to work. This patch teaches clang-cl to ignore unknown driver arguments. Reviewers: rnk Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D16511 llvm-svn: 258720
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
// Note: %s must be preceded by --, otherwise it may be interpreted as a
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// command-line option, e.g. on Mac where %s is commonly under /Users.
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// RUN: %clang_cl --target=i686-pc-win32 /fallback /Dfoo=bar /Ubaz /Ifoo /O0 /Ox /GR /GR- /Gy /Gy- \
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// RUN: /Gw /Gw- /LD /LDd /EHs /EHs- /Zl /MD /MDd /MTd /MT /FImyheader.h /Zi \
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// RUN: -garbage -moregarbage \
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// RUN: -### -- %s 2>&1 \
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// RUN: | FileCheck %s
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// CHECK: "-fdiagnostics-format" "msvc-fallback"
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// CHECK: ||
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// CHECK: cl.exe
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// CHECK: "/nologo"
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// CHECK: "/c"
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// CHECK: "/W0"
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// CHECK: "-D" "foo=bar"
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// CHECK: "-U" "baz"
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// CHECK: "-I" "foo"
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// CHECK: "/Oi"
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// CHECK: "/Og"
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// CHECK: "/Ot"
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// CHECK: "/Ob2"
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// CHECK: "/Oy"
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// CHECK: "/GF"
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// CHECK: "/GR-"
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// CHECK: "/Gy-"
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// CHECK: "/Gw-"
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// CHECK: "/Z7"
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// CHECK: "/FImyheader.h"
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// CHECK: "/LD"
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// CHECK: "/LDd"
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// CHECK: "/EHs"
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// CHECK: "/EHs-"
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// CHECK: "/Zl"
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// CHECK: "/MT"
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// CHECK: "-garbage"
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// CHECK: "-moregarbage"
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// CHECK: "/Tc" "{{.*cl-fallback.c}}"
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// CHECK: "/Fo{{.*cl-fallback.*.obj}}"
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// RUN: %clang_cl /fallback /GR- -### -- %s 2>&1 | FileCheck -check-prefix=GR %s
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// GR: cl.exe
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// GR: "/GR-"
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// RUN: %clang_cl /fallback /Od -### -- %s 2>&1 | FileCheck -check-prefix=O0 %s
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// O0: cl.exe
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// O0: "/Od"
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// RUN: %clang_cl --target=i686-pc-win32 /fallback /O1 -### -- %s 2>&1 | FileCheck -check-prefix=O1 %s
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// O1: cl.exe
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// O1: "/Og" "/Os" "/Ob2" "/Oy" "/GF" "/Gy"
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// RUN: %clang_cl --target=i686-pc-win32 /fallback /O2 -### -- %s 2>&1 | FileCheck -check-prefix=O2 %s
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// O2: cl.exe
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// O2: "/Oi" "/Og" "/Ot" "/Ob2" "/Oy" "/GF" "/Gy"
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// RUN: %clang_cl --target=i686-pc-win32 /fallback /Os -### -- %s 2>&1 | FileCheck -check-prefix=Os %s
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// Os: cl.exe
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// Os: "/Os"
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// RUN: %clang_cl --target=i686-pc-win32 /fallback /Ox -### -- %s 2>&1 | FileCheck -check-prefix=Ox %s
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// Ox: cl.exe
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// Ox: "/Oi" "/Og" "/Ot" "/Ob2" "/Oy" "/GF"
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// Only fall back when actually compiling, not for e.g. /P (preprocess).
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// RUN: %clang_cl /fallback /P -### -- %s 2>&1 | FileCheck -check-prefix=P %s
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// P-NOT: ||
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// P-NOT: "cl.exe"
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// RUN: not %clang_cl /fallback /c -- %s 2>&1 | \
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// RUN: FileCheck -check-prefix=ErrWarn %s
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// ErrWarn: warning: falling back to {{.*}}cl.exe
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// RUN: %clang_cl /fallback /c /GR /GR- -### -- %s 2>&1 | \
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// RUN: FileCheck -check-prefix=NO_RTTI %s
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// NO_RTTI: "-cc1"
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// NO_RTTI: ||
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// NO_RTTI: cl.exe
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// NO_RTTI: "/GR-"
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// Don't fall back on non-C or C++ files.
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// RUN: %clang_cl /fallback -### -- %S/Inputs/file.ll 2>&1 | FileCheck -check-prefix=LL %s
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// LL: file.ll
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// LL-NOT: ||
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// LL-NOT: "cl.exe"
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#error "This fails to compile."
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