[llvm-exegesis] Remove redundant declarations (NFC)

[kazutakahirata]

In C++17, static constexpr members are implicitly inline, so they no
longer require an out-of-line definition.

This patch removes the unnecessary "const" from the in-class
declaration as well.

Identified with readability-redundant-declaration.

[llvmbot]

@llvm/pr-subscribers-tools-llvm-exegesis

Author: Kazu Hirata (kazutakahirata)

Changes

In C++17, static constexpr members are implicitly inline, so they no
longer require an out-of-line definition.

This patch removes the unnecessary "const" from the in-class
declaration as well.

Identified with readability-redundant-declaration.

---

Full diff: https://github.com/llvm/llvm-project/pull/166044.diff

2 Files Affected:

• (modified) llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.cpp (-2)
• (modified) llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.h (+1-1)

diff --git a/llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.cpp b/llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.cpp
index 79a585ec52957..aa409138ae71b 100644
--- a/llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.cpp
+++ b/llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.cpp
@@ -350,7 +350,5 @@ ParallelSnippetGenerator::generateCodeTemplates(
   return Result;
 }
 
-constexpr const size_t ParallelSnippetGenerator::kMinNumDifferentAddresses;
-
 } // namespace exegesis
 } // namespace llvm
diff --git a/llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.h b/llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.h
index 8a6b8569c5d4c..d3c85c0c303a2 100644
--- a/llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.h
+++ b/llvm/tools/llvm-exegesis/lib/ParallelSnippetGenerator.h
@@ -28,7 +28,7 @@ class ParallelSnippetGenerator : public SnippetGenerator {
   generateCodeTemplates(InstructionTemplate Variant,
                         const BitVector &ForbiddenRegisters) const override;
 
-  static constexpr const size_t kMinNumDifferentAddresses = 6;
+  static constexpr size_t kMinNumDifferentAddresses = 6;
 
 private:
   // Instantiates memory operands within a snippet.