miyuki updated this revision to Diff 143327.
miyuki added a comment.
Updated the test
https://reviews.llvm.org/D45255
Files:
include/clang/Driver/Options.td
include/clang/Frontend/CodeGenOptions.def
lib/CodeGen/CGDebugInfo.cpp
lib/CodeGen/CodeGenModule.cpp
lib/Driver/ToolChains/Clang.cpp
lib/Frontend/CompilerInvocation.cpp
test/CodeGen/no-ident-version.c
Index: test/CodeGen/no-ident-version.c
===================================================================
--- /dev/null
+++ test/CodeGen/no-ident-version.c
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited -o - %s \
+// RUN: | FileCheck --check-prefix=CHECK-NONE %s
+// RUN: %clang_cc1 -Qn -emit-llvm -debug-info-kind=limited -o - %s \
+// RUN: | FileCheck --check-prefix=CHECK-QN %s
+// RUN: %clang_cc1 -Qy -emit-llvm -debug-info-kind=limited -o - %s \
+// RUN: | FileCheck --check-prefix=CHECK-QY %s
+
+// CHECK-NONE: define i32 @main()
+// CHECK-NONE: llvm.ident
+// CHECK-NONE: producer:
+
+// CHECK-QN: define i32 @main()
+// CHECK-QN-NOT: llvm.ident
+// CHECK-QN-NOT: producer:
+
+// CHECK-QY: define i32 @main()
+// CHECK-QY: llvm.ident
+// CHECK-QY: producer:
+int main(void) {}
Index: lib/Frontend/CompilerInvocation.cpp
===================================================================
--- lib/Frontend/CompilerInvocation.cpp
+++ lib/Frontend/CompilerInvocation.cpp
@@ -1112,6 +1112,8 @@
Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
+ Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
+
return Success;
}
Index: lib/Driver/ToolChains/Clang.cpp
===================================================================
--- lib/Driver/ToolChains/Clang.cpp
+++ lib/Driver/ToolChains/Clang.cpp
@@ -4408,6 +4408,9 @@
}
}
+ if (!Args.hasFlag(options::OPT_Qy, options::OPT_Qn, true))
+ CmdArgs.push_back("-Qn");
+
// -fcommon is the default unless compiling kernel code or the target says so
bool NoCommonDefault = KernelOrKext || isNoCommonDefault(RawTriple);
if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common,
Index: lib/CodeGen/CodeGenModule.cpp
===================================================================
--- lib/CodeGen/CodeGenModule.cpp
+++ lib/CodeGen/CodeGenModule.cpp
@@ -571,7 +571,8 @@
if (DebugInfo)
DebugInfo->finalize();
- EmitVersionIdentMetadata();
+ if (getCodeGenOpts().EmitVersionIdentMetadata)
+ EmitVersionIdentMetadata();
EmitTargetMetadata();
}
Index: lib/CodeGen/CGDebugInfo.cpp
===================================================================
--- lib/CodeGen/CGDebugInfo.cpp
+++ lib/CodeGen/CGDebugInfo.cpp
@@ -577,7 +577,8 @@
remapDIPath(getCurrentDirname()),
CSInfo,
getSource(SM, SM.getMainFileID())),
- Producer, LO.Optimize || CGOpts.PrepareForLTO || CGOpts.EmitSummaryIndex,
+ CGOpts.EmitVersionIdentMetadata ? Producer : "",
+ LO.Optimize || CGOpts.PrepareForLTO || CGOpts.EmitSummaryIndex,
CGOpts.DwarfDebugFlags, RuntimeVers,
CGOpts.EnableSplitDwarf ? "" : CGOpts.SplitDwarfFile, EmissionKind,
0 /* DWOid */, CGOpts.SplitDwarfInlining, CGOpts.DebugInfoForProfiling,
Index: include/clang/Frontend/CodeGenOptions.def
===================================================================
--- include/clang/Frontend/CodeGenOptions.def
+++ include/clang/Frontend/CodeGenOptions.def
@@ -69,6 +69,7 @@
///< Decl* various IR entities came from.
///< Only useful when running CodeGen as a
///< subroutine.
+CODEGENOPT(EmitVersionIdentMetadata , 1, 1) ///< Emit compiler version metadata.
CODEGENOPT(EmitGcovArcs , 1, 0) ///< Emit coverage data files, aka. GCDA.
CODEGENOPT(EmitGcovNotes , 1, 0) ///< Emit coverage "notes" files, aka GCNO.
CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata.
Index: include/clang/Driver/Options.td
===================================================================
--- include/clang/Driver/Options.td
+++ include/clang/Driver/Options.td
@@ -396,7 +396,10 @@
def Ofast : Joined<["-"], "Ofast">, Group<O_Group>, Flags<[CC1Option]>;
def P : Flag<["-"], "P">, Flags<[CC1Option]>, Group<Preprocessor_Group>,
HelpText<"Disable linemarker output in -E mode">;
-def Qn : Flag<["-"], "Qn">, IgnoredGCCCompat;
+def Qy : Flag<["-"], "Qy">, Flags<[CC1Option]>,
+ HelpText<"Emit metadata containing compiler name and version">;
+def Qn : Flag<["-"], "Qn">, Flags<[CC1Option]>,
+ HelpText<"Do not emit metadata containing compiler name and version">;
def Qunused_arguments : Flag<["-"], "Qunused-arguments">, Flags<[DriverOption, CoreOption]>,
HelpText<"Don't emit warning for unused driver arguments">;
def Q : Flag<["-"], "Q">, IgnoredGCCCompat;
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