[llvm] 3905724 - [RISCV] Use std::map::count != 0 instead of std::map::count == 1. NFC

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2022-01-27T12:16:42-08:00
New Revision: 39057240f59b348e42c9807ab0d6eb85ccc229ad

URL: https://github.com/llvm/llvm-project/commit/39057240f59b348e42c9807ab0d6eb85ccc229ad
DIFF: https://github.com/llvm/llvm-project/commit/39057240f59b348e42c9807ab0d6eb85ccc229ad.diff

LOG: [RISCV] Use std::map::count != 0 instead of std::map::count == 1. NFC

Maps always return 0 or 1 for count. Comparing to 0 can create
simpler compiled code.

Someday we'll get to use std::map::contains.

Added: 
    

Modified: 
    llvm/lib/Support/RISCVISAInfo.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Support/RISCVISAInfo.cpp b/llvm/lib/Support/RISCVISAInfo.cpp
index 6c59d8a7ef047..97baf3df56f83 100644
--- a/llvm/lib/Support/RISCVISAInfo.cpp
+++ b/llvm/lib/Support/RISCVISAInfo.cpp
@@ -699,13 +699,13 @@ RISCVISAInfo::parseArchString(StringRef Arch, bool EnableExperimentalExtension,
 
 Error RISCVISAInfo::checkDependency() {
   bool IsRv32 = XLen == 32;
-  bool HasE = Exts.count("e") == 1;
-  bool HasD = Exts.count("d") == 1;
-  bool HasF = Exts.count("f") == 1;
-  bool HasZve32x = Exts.count("zve32x") == 1;
-  bool HasZve32f = Exts.count("zve32f") == 1;
-  bool HasZve64d = Exts.count("zve64d") == 1;
-  bool HasV = Exts.count("v") == 1;
+  bool HasE = Exts.count("e") != 0;
+  bool HasD = Exts.count("d") != 0;
+  bool HasF = Exts.count("f") != 0;
+  bool HasZve32x = Exts.count("zve32x") != 0;
+  bool HasZve32f = Exts.count("zve32f") != 0;
+  bool HasZve64d = Exts.count("zve64d") != 0;
+  bool HasV = Exts.count("v") != 0;
   bool HasVector = HasZve32x || HasV;
   bool HasZvl = MinVLen != 0;
 
@@ -810,8 +810,8 @@ static constexpr ImpliedExtsEntry ImpliedExts[] = {
 };
 
 void RISCVISAInfo::updateImplication() {
-  bool HasE = Exts.count("e") == 1;
-  bool HasI = Exts.count("i") == 1;
+  bool HasE = Exts.count("e") != 0;
+  bool HasI = Exts.count("i") != 0;
 
   // If not in e extension and i extension does not exist, i extension is
   // implied