[clang] 8e10448 - [AArch64] Remove unused feature flags from AArch64TargetInfo

[via cfe-commits]

Author: tyb0807
Date: 2022-02-22T16:13:44Z
New Revision: 8e10448cbbd98e2496f8bc8985b6ee499b7ffcdd

URL: https://github.com/llvm/llvm-project/commit/8e10448cbbd98e2496f8bc8985b6ee499b7ffcdd
DIFF: https://github.com/llvm/llvm-project/commit/8e10448cbbd98e2496f8bc8985b6ee499b7ffcdd.diff

LOG: [AArch64] Remove unused feature flags from AArch64TargetInfo

This removes two feature flags from `AArch64TargetInfo` class:

- `HasHBC`: this feature does not involve generating any IR intrinsics,
so clang does not need to know about whether it is set

- `HasCrypto`: this feature is deprecated in favor of finer grained
features such as AES, SHA2, SHA3 and SM4. The associated ACLE macro
__ARM_FEATURE_CRYPTO is thus no longer used.

Differential Revision: https://reviews.llvm.org/D118757

Added: 
    

Modified: 
    clang/lib/Basic/Targets/AArch64.cpp
    clang/lib/Basic/Targets/AArch64.h

Removed: 
    


################################################################################
diff  --git a/clang/lib/Basic/Targets/AArch64.cpp b/clang/lib/Basic/Targets/AArch64.cpp
index b04508570ad7..bd03d88b2d5a 100644
--- a/clang/lib/Basic/Targets/AArch64.cpp
+++ b/clang/lib/Basic/Targets/AArch64.cpp
@@ -525,7 +525,6 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
                                              DiagnosticsEngine &Diags) {
   FPU = FPUMode;
   HasCRC = false;
-  HasCrypto = false;
   HasAES = false;
   HasSHA2 = false;
   HasSHA3 = false;
@@ -548,7 +547,6 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
   HasMatmulFP64 = false;
   HasMatmulFP32 = false;
   HasLSE = false;
-  HasHBC = false;
   HasMOPS = false;
 
   ArchKind = llvm::AArch64::ArchKind::INVALID;
@@ -599,8 +597,6 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
     }
     if (Feature == "+crc")
       HasCRC = true;
-    if (Feature == "+crypto")
-      HasCrypto = true;
     if (Feature == "+aes")
       HasAES = true;
     if (Feature == "+sha2")
@@ -665,8 +661,6 @@ bool AArch64TargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
       HasRandGen = true;
     if (Feature == "+flagm")
       HasFlagM = true;
-    if (Feature == "+hbc")
-      HasHBC = true;
     if (Feature == "+mops")
       HasMOPS = true;
   }

diff  --git a/clang/lib/Basic/Targets/AArch64.h b/clang/lib/Basic/Targets/AArch64.h
index 9e22aeaff251..bd6812d1257c 100644
--- a/clang/lib/Basic/Targets/AArch64.h
+++ b/clang/lib/Basic/Targets/AArch64.h
@@ -30,7 +30,6 @@ class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
 
   unsigned FPU;
   bool HasCRC;
-  bool HasCrypto;
   bool HasAES;
   bool HasSHA2;
   bool HasSHA3;
@@ -54,7 +53,6 @@ class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
   bool HasMatmulFP32;
   bool HasLSE;
   bool HasFlagM;
-  bool HasHBC;
   bool HasMOPS;
 
   llvm::AArch64::ArchKind ArchKind;