[ms-inline-asm][X86] Add ability to use AVX512 in MS inline asm

[myatsina]

Summary

Defined the new AVX512 registers in clang inline asm.
Fixed a bug in the MC subtarget info creation during the parsing of MS asm statement - now it receives the actual CPU and target features information.

[rnk]

lgtm

cfe/trunk/lib/Basic/Targets.cpp

static const char* const GCCRegNames[] = {
   "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)",
   "argp", "flags", "fpcr", "fpsr", "dirflag", "frame",
   "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7",
   "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7",
   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
   "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15",
   "ymm0", "ymm1", "ymm2", "ymm3", "ymm4", "ymm5", "ymm6", "ymm7",
   "ymm8", "ymm9", "ymm10", "ymm11", "ymm12", "ymm13", "ymm14", "ymm15",
+  "xmm16", "xmm17", "xmm18", "xmm19", "xmm20", "xmm21", "xmm22", "xmm23",
+  "xmm24", "xmm25", "xmm26", "xmm27", "xmm28", "xmm29", "xmm30", "xmm31",
+  "ymm16", "ymm17", "ymm18", "ymm19", "ymm20", "ymm21", "ymm22", "ymm23",
+  "ymm24", "ymm25", "ymm26", "ymm27", "ymm28", "ymm29", "ymm30", "ymm31",
+  "zmm0", "zmm1", "zmm2", "zmm3", "zmm4", "zmm5", "zmm6", "zmm7",
+  "zmm8", "zmm9", "zmm10", "zmm11", "zmm12", "zmm13", "zmm14", "zmm15",
+  "zmm16", "zmm17", "zmm18", "zmm19", "zmm20", "zmm21", "zmm22", "zmm23",
+  "zmm24", "zmm25", "zmm26", "zmm27", "zmm28", "zmm29", "zmm30", "zmm31",
 };
 
 const TargetInfo::AddlRegName AddlRegNames[] = {
   { { "al", "ah", "eax", "rax" }, 0 },
   { { "bl", "bh", "ebx", "rbx" }, 3 },
   { { "cl", "ch", "ecx", "rcx" }, 2 },
   { { "dl", "dh", "edx", "rdx" }, 1 },
   { { "esi", "rsi" }, 4 },

cfe/trunk/lib/Parse/ParseStmtAsm.cpp

 //===----------------------------------------------------------------------===//
 
 #include "clang/Parse/Parser.h"
 #include "RAIIObjectsForParser.h"
 #include "clang/AST/ASTContext.h"
 #include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCInstPrinter.h"
 #include "llvm/MC/MCInstrInfo.h"
 #include "llvm/MC/MCObjectFileInfo.h"
 #include "llvm/MC/MCParser/MCAsmParser.h"
 #include "llvm/MC/MCParser/MCTargetAsmParser.h"
 #include "llvm/MC/MCRegisterInfo.h"
StmtResult Parser::ParseMicrosoftAsmStatement(SourceLocation AsmLoc) {
   }
 
   // Expand the tokens into a string buffer.
   SmallString<512> AsmString;
   SmallVector<unsigned, 8> TokOffsets;
   if (buildMSAsmString(PP, AsmLoc, AsmToks, TokOffsets, AsmString))
     return StmtError();
 
+  TargetOptions TO = Actions.Context.getTargetInfo().getTargetOpts();
+  std::string FeaturesStr =
+      llvm::join(TO.Features.begin(), TO.Features.end(), ",");
+
   std::unique_ptr<llvm::MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TT));
   std::unique_ptr<llvm::MCAsmInfo> MAI(TheTarget->createMCAsmInfo(*MRI, TT));
   // Get the instruction descriptor.
   std::unique_ptr<llvm::MCInstrInfo> MII(TheTarget->createMCInstrInfo());
   std::unique_ptr<llvm::MCObjectFileInfo> MOFI(new llvm::MCObjectFileInfo());
   std::unique_ptr<llvm::MCSubtargetInfo> STI(
-      TheTarget->createMCSubtargetInfo(TT, "", ""));
+      TheTarget->createMCSubtargetInfo(TT, TO.CPU, FeaturesStr));
 
   llvm::SourceMgr TempSrcMgr;
   llvm::MCContext Ctx(MAI.get(), MRI.get(), MOFI.get(), &TempSrcMgr);
   MOFI->InitMCObjectFileInfo(TheTriple, llvm::Reloc::Default,
                              llvm::CodeModel::Default, Ctx);
   std::unique_ptr<llvm::MemoryBuffer> Buffer =
       llvm::MemoryBuffer::getMemBuffer(AsmString, "<MS inline asm>");
 

cfe/trunk/test/CodeGen/ms-inline-asm-avx512.c

+// REQUIRES: x86-registered-target
+// RUN: %clang_cc1 %s -triple x86_64-pc-windows-msvc -target-cpu knl -fasm-blocks -emit-llvm -o - | FileCheck %s
+
+void t1() {
+// CHECK: @t1
+// CHECK: call void asm sideeffect inteldialect "vaddpd zmm8, zmm27, zmm6", "~{zmm8},~{dirflag},~{fpsr},~{flags}"()
+// CHECK: ret void
+  __asm {
+    vaddpd zmm8, zmm27, zmm6
+  }
+}

cfe/trunk/test/Sema/asm.c

 }
 
 void clobbers() {
   asm ("nop" : : : "ax", "#ax", "%ax");
   asm ("nop" : : : "eax", "rax", "ah", "al");
   asm ("nop" : : : "0", "%0", "#0");
   asm ("nop" : : : "foo"); // expected-error {{unknown register name 'foo' in asm}}
   asm ("nop" : : : "52");
-  asm ("nop" : : : "104"); // expected-error {{unknown register name '104' in asm}}
+  asm ("nop" : : : "204"); // expected-error {{unknown register name '204' in asm}}
   asm ("nop" : : : "-1"); // expected-error {{unknown register name '-1' in asm}}
   asm ("nop" : : : "+1"); // expected-error {{unknown register name '+1' in asm}}
 }
 
 // rdar://6094010
 void test3() {
   int x;
   asm(L"foo" : "=r"(x)); // expected-error {{wide string}}