[TableGen] Avoid repeated hash lookups (NFC)

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-tablegen

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/126344.diff

1 Files Affected:

• (modified) llvm/utils/TableGen/X86InstrMappingEmitter.cpp (+3-2)

diff --git a/llvm/utils/TableGen/X86InstrMappingEmitter.cpp b/llvm/utils/TableGen/X86InstrMappingEmitter.cpp
index 1ee79aa27fa98c..df43f39e0e9bee 100644
--- a/llvm/utils/TableGen/X86InstrMappingEmitter.cpp
+++ b/llvm/utils/TableGen/X86InstrMappingEmitter.cpp
@@ -228,8 +228,9 @@ void X86InstrMappingEmitter::emitCompressEVEXTable(
       // For each pre-compression instruction look for a match in the
       // appropriate vector (instructions with the same opcode) using function
       // object IsMatch.
-      auto Match = llvm::find_if(CompressedInsts[Opcode], IsMatch(Inst));
-      if (Match != CompressedInsts[Opcode].end())
+      const auto &Insts = CompressedInsts[Opcode];
+      auto Match = llvm::find_if(Insts, IsMatch(Inst));
+      if (Match != Insts.end())
         NewInst = *Match;
     }
 

[llvmbot]

@llvm/pr-subscribers-backend-x86

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/126344.diff

1 Files Affected:

• (modified) llvm/utils/TableGen/X86InstrMappingEmitter.cpp (+3-2)

diff --git a/llvm/utils/TableGen/X86InstrMappingEmitter.cpp b/llvm/utils/TableGen/X86InstrMappingEmitter.cpp
index 1ee79aa27fa98c..df43f39e0e9bee 100644
--- a/llvm/utils/TableGen/X86InstrMappingEmitter.cpp
+++ b/llvm/utils/TableGen/X86InstrMappingEmitter.cpp
@@ -228,8 +228,9 @@ void X86InstrMappingEmitter::emitCompressEVEXTable(
       // For each pre-compression instruction look for a match in the
       // appropriate vector (instructions with the same opcode) using function
       // object IsMatch.
-      auto Match = llvm::find_if(CompressedInsts[Opcode], IsMatch(Inst));
-      if (Match != CompressedInsts[Opcode].end())
+      const auto &Insts = CompressedInsts[Opcode];
+      auto Match = llvm::find_if(Insts, IsMatch(Inst));
+      if (Match != Insts.end())
         NewInst = *Match;
     }