On 11/07/2014 14:43, Sylvestre Ledru wrote:
+def warn_ignored_gcc_optimization : Warning<"ignoring unsupported optimization flag '%0'">,
+ InGroup<UnusedCommandLineArgument>;
def warn_O4_is_O3 : Warning<"-O4 is equivalent to -O3">, InGroup<Deprecated>;
def warn_drv_optimization_value : Warning<"optimization level '%0' is unsupported;
using '%1%2' instead">,
InGroup<InvalidCommandLineArgument>;
Hi Sylvestre,
Logically InvalidCommandLineArgument looks like it'd be slightly more
suitable than UnusedCommandLineArgument as the group here.
Moving it there will let people turn on
-Werror=invalid-command-line-argument to get basically the stricter
behaviour we previously had, or disable with
-Wno-invalid-command-line-argument if they don't mind silencing
optimization warnings but still want to keep legitimate unused argument
warnings. And it aligns well with the existing warn_drv_optimization_value.
Patch attached, does this look OK to you?
Alp.
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diff --git a/include/clang/Basic/DiagnosticDriverKinds.td
b/include/clang/Basic/DiagnosticDriverKinds.td
index e67c352..e7d2449 100644
--- a/include/clang/Basic/DiagnosticDriverKinds.td
+++ b/include/clang/Basic/DiagnosticDriverKinds.td
@@ -120,7 +120,7 @@ def err_drv_optimization_remark_pattern : Error<
"%0 in '%1'">;
def warn_ignored_gcc_optimization : Warning<"ignoring unsupported optimization
flag '%0'">,
- InGroup<UnusedCommandLineArgument>;
+ InGroup<InvalidCommandLineArgument>;
def warn_O4_is_O3 : Warning<"-O4 is equivalent to -O3">, InGroup<Deprecated>;
def warn_drv_optimization_value : Warning<"optimization level '%0' is
unsupported; using '%1%2' instead">,
InGroup<InvalidCommandLineArgument>;
diff --git a/test/Driver/clang_f_opts.c b/test/Driver/clang_f_opts.c
index f31e9e2..598e76b 100644
--- a/test/Driver/clang_f_opts.c
+++ b/test/Driver/clang_f_opts.c
@@ -176,9 +176,9 @@
// CHECK-WARNING2: ignoring unsupported optimization flag '-finline-limit'
// Test that we mute the warning on these
-// RUN: %clang -### -finline-limit=1000 -Wno-unused-command-line-argument
\
+// RUN: %clang -### -finline-limit=1000 -Wno-invalid-command-line-argument
\
// RUN: %s 2>&1 | FileCheck --check-prefix=CHECK-NO-WARNING1 %s
-// RUN: %clang -### -finline-limit -Wno-unused-command-line-argument
\
+// RUN: %clang -### -finline-limit -Wno-invalid-command-line-argument
\
// RUN: %s 2>&1 | FileCheck --check-prefix=CHECK-NO-WARNING2 %s
// CHECK-NO-WARNING1-NOT: ignoring unsupported optimization flag
'-finline-limit=1000'
// CHECK-NO-WARNING2-NOT: ignoring unsupported optimization flag
'-finline-limit'
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