Revert "[RISCV] Add Clang frontend support for Bitmanip extension"

This reverts commit 57cf6ee9c84434161088c39a6f8dd2aae14eb12d.

2 files changed, 1 insertions, 9 deletions

diff --git a/clang/lib/Basic/Targets/RISCV.cpp b/clang/lib/Basic/Targets/RISCV.cpp
index 58285f1d813..ab8272c034f 100644
--- a/clang/lib/Basic/Targets/RISCV.cpp
+++ b/clang/lib/Basic/Targets/RISCV.cpp
@@ -125,10 +125,6 @@ void RISCVTargetInfo::getTargetDefines(const LangOptions &Opts,
 
   if (HasC)
     Builder.defineMacro("__riscv_compressed");
-
-  if (HasB) {
-    Builder.defineMacro("__riscv_bitmanip");
-  }
 }
 
 /// Return true if has this feature, need to sync with handleTargetFeatures.
@@ -143,7 +139,6 @@ bool RISCVTargetInfo::hasFeature(StringRef Feature) const {
       .Case("f", HasF)
       .Case("d", HasD)
       .Case("c", HasC)
-      .Case("b", HasB)
       .Default(false);
 }
 
@@ -161,8 +156,6 @@ bool RISCVTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
       HasD = true;
     else if (Feature == "+c")
       HasC = true;
-    else if (Feature == "+b")
-      HasB = true;
   }
 
   return true;
diff --git a/clang/lib/Basic/Targets/RISCV.h b/clang/lib/Basic/Targets/RISCV.h
index 05da13230bf..9118494a87a 100644
--- a/clang/lib/Basic/Targets/RISCV.h
+++ b/clang/lib/Basic/Targets/RISCV.h
@@ -30,12 +30,11 @@ protected:
   bool HasF;
   bool HasD;
   bool HasC;
-  bool HasB;
 
 public:
   RISCVTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
       : TargetInfo(Triple), HasM(false), HasA(false), HasF(false),
-        HasD(false), HasC(false), HasB(false) {
+        HasD(false), HasC(false) {
     LongDoubleWidth = 128;
     LongDoubleAlign = 128;
     LongDoubleFormat = &llvm::APFloat::IEEEquad();