llvm/lib/Support/TargetParser.cpp: Rework llvm::ARM::getArchExtFeature() to avoid...

[oota-llvm.git] / lib / Support / TargetParser.cpp

diff --git a/lib/Support/TargetParser.cpp b/lib/Support/TargetParser.cpp
index 05b06fbae5ef5d70392a90adf7c1fb9200bbdf0b..371ae35c54a39a0fa97c107eaf216bdd3a394928 100644 (file)
--- a/lib/Support/TargetParser.cpp
+++ b/lib/Support/TargetParser.cpp
@@ -16,6 +16,7 @@
 #include "llvm/Support/TargetParser.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/StringSwitch.h"
+#include "llvm/ADT/Twine.h"
 #include <cctype>
 
 using namespace llvm;
@@ -82,10 +83,13 @@ static const struct {
   const char *NameCStr;
   size_t NameLength;
   unsigned ID;
+  const char *Feature;
+  const char *NegFeature;
 
   StringRef getName() const { return StringRef(NameCStr, NameLength); }
 } ARCHExtNames[] = {
-#define ARM_ARCH_EXT_NAME(NAME, ID) { NAME, sizeof(NAME) - 1, ID },
+#define ARM_ARCH_EXT_NAME(NAME, ID, FEATURE, NEGFEATURE) \
+  { NAME, sizeof(NAME) - 1, ID, FEATURE, NEGFEATURE },
 #include "llvm/Support/ARMTargetParser.def"
 };
 
@@ -326,6 +330,22 @@ StringRef llvm::ARM::getArchExtName(unsigned ArchExtKind) {
   return StringRef();
 }
 
+const char *llvm::ARM::getArchExtFeature(StringRef ArchExt) {
+  if (ArchExt.substr(0, 2) == "no") {
+    StringRef ArchExtBase(ArchExt.substr(2));
+    for (const auto AE : ARCHExtNames) {
+      if (AE.NegFeature && ArchExtBase == AE.getName())
+        return AE.NegFeature;
+    }
+  }
+  for (const auto AE : ARCHExtNames) {
+    if (AE.Feature && ArchExt == AE.getName())
+      return AE.Feature;
+  }
+
+  return nullptr;
+}
+
 StringRef llvm::ARM::getHWDivName(unsigned HWDivKind) {
   for (const auto D : HWDivNames) {
     if (HWDivKind == D.ID)
@@ -382,6 +402,7 @@ static StringRef getArchSynonym(StringRef Arch) {
       .Case("v5e", "v5te")
       .Case("v6hl", "v6k")
       .Cases("v6m", "v6sm", "v6s-m", "v6-m")
+      .Cases("v6z", "v6zk", "v6kz")
       .Cases("v7", "v7a", "v7hl", "v7l", "v7-a")
       .Case("v7r", "v7-r")
       .Case("v7m", "v7-m")
@@ -561,8 +582,7 @@ unsigned llvm::ARM::parseArchVersion(StringRef Arch) {
   case ARM::AK_ARMV6J:
   case ARM::AK_ARMV6K:
   case ARM::AK_ARMV6T2:
-  case ARM::AK_ARMV6Z:
-  case ARM::AK_ARMV6ZK:
+  case ARM::AK_ARMV6KZ:
   case ARM::AK_ARMV6M:
     return 6;
   case ARM::AK_ARMV7A: