clang -cc1: Add a -fno-bitfield-type-align option, for my own testing purposes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101370 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/LangOptions.h b/include/clang/Basic/LangOptions.h
index 1dfc7a1..8a7d9d6 100644
--- a/include/clang/Basic/LangOptions.h
+++ b/include/clang/Basic/LangOptions.h
@@ -100,6 +100,10 @@
unsigned CatchUndefined : 1; // Generate code to check for undefined ops.
unsigned DumpRecordLayouts : 1; /// Dump the layout of IRgen'd records.
unsigned DumpVtableLayouts : 1; /// Dump the layouts of emitted vtables.
+
+ // FIXME: This is just a temporary option, for testing purposes.
+ unsigned NoBitFieldTypeAlign : 1;
+
private:
unsigned GC : 2; // Objective-C Garbage Collection modes. We
// declare this enum as unsigned because MSVC
@@ -171,6 +175,7 @@
CatchUndefined = 0;
DumpRecordLayouts = 0;
DumpVtableLayouts = 0;
+ NoBitFieldTypeAlign = 0;
}
GCMode getGCMode() const { return (GCMode) GC; }
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index 5f48bc6..27b1392 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -415,6 +415,8 @@
HelpText<"Process trigraph sequences">;
def fwritable_strings : Flag<"-fwritable-strings">,
HelpText<"Store string literals as writable data">;
+def fno_bitfield_type_align : Flag<"-fno-bitfield-type-align">,
+ HelpText<"Ignore bit-field types when aligning structures">;
//===----------------------------------------------------------------------===//
// Header Search Options
diff --git a/lib/Basic/TargetInfo.cpp b/lib/Basic/TargetInfo.cpp
index e03d5ac..b259fac 100644
--- a/lib/Basic/TargetInfo.cpp
+++ b/lib/Basic/TargetInfo.cpp
@@ -142,9 +142,10 @@
/// Apply changes to the target information with respect to certain
/// language options which change the target configuration.
void TargetInfo::setForcedLangOptions(LangOptions &Opts) {
- if (Opts.ShortWChar) {
+ if (Opts.NoBitFieldTypeAlign)
+ UseBitFieldTypeAlignment = false;
+ if (Opts.ShortWChar)
WCharType = UnsignedShort;
- }
}
//===----------------------------------------------------------------------===//
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index f51bad2..4dfd9c2 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -526,6 +526,14 @@
// OptimizeSize is implicit.
if (Opts.Static)
Res.push_back("-static-define");
+ if (Opts.DumpRecordLayouts)
+ Res.push_back("-fdump-record-layouts");
+ if (Opts.DumpVtableLayouts)
+ Res.push_back("-fdump-vtable-layouts");
+ if (Opts.NoBitFieldTypeAlign)
+ Res.push_back("-fno-bitfield-type-alignment");
+ if (Opts.SjLjExceptions)
+ Res.push_back("-fsjlj-exceptions");
if (Opts.PICLevel) {
Res.push_back("-pic-level");
Res.push_back(llvm::utostr(Opts.PICLevel));
@@ -1219,6 +1227,7 @@
Opts.Static = Args.hasArg(OPT_static_define);
Opts.DumpRecordLayouts = Args.hasArg(OPT_fdump_record_layouts);
Opts.DumpVtableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
+ Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
Opts.OptimizeSize = 0;
// FIXME: Eliminate this dependency.