Stop resetting SanitizeAddress in TargetMachine::resetTargetOptions. NFC.

Instead of doing that, create a temporary copy of MCTargetOptions and reset its
SanitizeAddress field based on the function's attribute every time an InlineAsm
instruction is emitted in AsmPrinter::EmitInlineAsm. 

This is part of the work to remove TargetMachine::resetTargetOptions (the FIXME
added to TargetMachine.cpp in r236009 explains why this function has to be
removed).

Differential Revision: http://reviews.llvm.org/D9570


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237412 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/AsmPrinter.h

@@ -53,6 +53,7 @@ class MCSection;
 class MCStreamer;
 class MCSubtargetInfo;
 class MCSymbol;
+class MCTargetOptions;
 class MDNode;
 class DwarfDebug;
 class Mangler;
@@ -498,6 +499,7 @@ private:
   /// Emit a blob of inline asm to the output streamer.
   void
   EmitInlineAsm(StringRef Str, const MCSubtargetInfo &STI,
+                const MCTargetOptions &MCOptions,
                 const MDNode *LocMDNode = nullptr,
                 InlineAsm::AsmDialect AsmDialect = InlineAsm::AD_ATT) const;
 

lib/CodeGen/AsmPrinter/AsmPrinter.cpp

@@ -225,7 +225,7 @@ bool AsmPrinter::doInitialization(Module &M) {
         TM.getTargetTriple(), TM.getTargetCPU(), TM.getTargetFeatureString()));
     OutStreamer->AddComment("Start of file scope inline assembly");
     OutStreamer->AddBlankLine();
-    EmitInlineAsm(M.getModuleInlineAsm()+"\n", *STI);
+    EmitInlineAsm(M.getModuleInlineAsm()+"\n", *STI, TM.Options.MCOptions);
     OutStreamer->AddComment("End of file scope inline assembly");
     OutStreamer->AddBlankLine();
   }

lib/CodeGen/AsmPrinter/AsmPrinterInlineAsm.cpp

@@ -74,6 +74,7 @@ static void srcMgrDiagHandler(const SMDiagnostic &Diag, void *diagInfo) {
 
 /// EmitInlineAsm - Emit a blob of inline asm to the output streamer.
 void AsmPrinter::EmitInlineAsm(StringRef Str, const MCSubtargetInfo &STI,
+                               const MCTargetOptions &MCOptions,
                                const MDNode *LocMDNode,
                                InlineAsm::AsmDialect Dialect) const {
   assert(!Str.empty() && "Can't emit empty inline asm block");
@@ -138,7 +139,7 @@ void AsmPrinter::EmitInlineAsm(StringRef Str, const MCSubtargetInfo &STI,
   // because it's not subtarget dependent.
   std::unique_ptr<MCInstrInfo> MII(TM.getTarget().createMCInstrInfo());
   std::unique_ptr<MCTargetAsmParser> TAP(TM.getTarget().createMCAsmParser(
-      TmpSTI, *Parser, *MII, TM.Options.MCOptions));
+      TmpSTI, *Parser, *MII, MCOptions));
   if (!TAP)
     report_fatal_error("Inline asm not supported by this streamer because"
                        " we don't have an asm parser for this target\n");
@@ -488,7 +489,13 @@ void AsmPrinter::EmitInlineAsm(const MachineInstr *MI) const {
   else
     EmitMSInlineAsmStr(AsmStr, MI, MMI, InlineAsmVariant, AP, LocCookie, OS);
 
-  EmitInlineAsm(OS.str(), getSubtargetInfo(), LocMD, MI->getInlineAsmDialect());
+  // Reset SanitizeAddress based on the function's attribute.
+  MCTargetOptions MCOptions = TM.Options.MCOptions;
+  MCOptions.SanitizeAddress =
+      MF->getFunction()->hasFnAttribute(Attribute::SanitizeAddress);
+
+  EmitInlineAsm(OS.str(), getSubtargetInfo(), MCOptions, LocMD,
+                MI->getInlineAsmDialect());
 
   // Emit the #NOAPP end marker.  This has to happen even if verbose-asm isn't
   // enabled, so we use emitRawComment.

lib/Target/TargetMachine.cpp

@@ -72,8 +72,6 @@ void TargetMachine::resetTargetOptions(const Function &F) const {
   RESET_OPTION(NoInfsFPMath, "no-infs-fp-math");
   RESET_OPTION(NoNaNsFPMath, "no-nans-fp-math");
   RESET_OPTION(DisableTailCalls, "disable-tail-calls");
-
-  Options.MCOptions.SanitizeAddress = F.hasFnAttribute(Attribute::SanitizeAddress);
 }
 
 /// getRelocationModel - Returns the code generation relocation model. The