Added '-Hkeep-all-bodies' switch.

The same behavior is triggered by the '-inline' switch for
DMD, but this doesn't quite translate to LDC.

dmd2/func.c

@@ -1948,7 +1948,13 @@ void FuncDeclaration::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
             bodyToCBuffer(buf, hgs);
             hgs->autoMember--;
         }
-        else if(hgs->tpltMember == 0 && global.params.useInline == 0)
+        else if(hgs->tpltMember == 0 &&
+#if IN_LLVM
+            !global.params.hdrKeepAllBodies
+#else
+            global.params.useInline == 0
+#endif
+        )
             buf->writestring(";");
         else
             bodyToCBuffer(buf, hgs);
@@ -2022,7 +2028,13 @@ int FuncDeclaration::equals(Object *o)
 
 void FuncDeclaration::bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs)
 {
-    if (fbody && (!hgs->hdrgen || global.params.useInline || hgs->autoMember || hgs->tpltMember))
+    if (fbody && (!hgs->hdrgen ||
+#if IN_LLVM
+        global.params.hdrKeepAllBodies ||
+#else
+        global.params.useInline ||
+#endif
+        hgs->autoMember || hgs->tpltMember))
     {
         int savetlpt = hgs->tpltMember;
         int saveauto = hgs->autoMember;

dmd2/mars.h

@@ -282,6 +282,11 @@ struct Param
     char *exefile;
     char *mapfile;
 #if IN_LLVM
+    // Whether to keep all function bodies in .di file generation or to strip
+    // those of plain functions. For DMD, this is govenered by the -inline
+    // flag, which does not directly translate to LDC.
+    bool hdrKeepAllBodies;
+
     // LDC stuff
     OUTPUTFLAG output_ll;
     OUTPUTFLAG output_bc;

driver/cl_options.cpp

@@ -187,6 +187,10 @@ cl::opt<std::string> hdrFile("Hf",
     cl::value_desc("filename"),
     cl::Prefix);
 
+static cl::opt<bool, true> hdrKeepAllBodies("Hkeep-all-bodies",
+    cl::desc("Keep all function bodies in .di files"),
+    cl::ZeroOrMore,
+    cl::location(global.params.hdrKeepAllBodies));
 
 static cl::opt<bool, true> unittest("unittest",
     cl::desc("Compile in unit tests"),

driver/ldmd.cpp

@@ -822,7 +822,11 @@ void buildCommandLine(std::vector<const char*>& r, const Params& p)
     if (p.jsonName) r.push_back(concat("-Xf=", p.jsonName));
     if (p.ignoreUnsupportedPragmas) r.push_back("-ignore");
     if (p.enforcePropertySyntax) r.push_back("-property");
-    if (p.enableInline) r.push_back("-enable-inlining");
+    if (p.enableInline) {
+        // -inline also influences .di generation with DMD.
+        r.push_back("-enable-inlining");
+        r.push_back("-Hkeep-all-bodies");
+    }
     if (p.emitStaticLib) r.push_back("-lib");
     if (p.noFloat) warning("-nofloat is ignored by LDC.");
     if (p.quiet) r.push_back("-quiet"); // Undocumented.