[llvm] [RISCV][llvm-exegesis] Simplify copying a SmallVector to a std::vector. NFC (PR #122988)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

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

Author: Craig Topper (topperc)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/122988.diff


1 Files Affected:

- (modified) llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp (+1-3) 


``````````diff
diff --git a/llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp b/llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp
index 5636782bdf7f6f..d55db9af8a9bd8 100644
--- a/llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp
+++ b/llvm/tools/llvm-exegesis/lib/RISCV/Target.cpp
@@ -32,13 +32,11 @@ namespace {
 static std::vector<MCInst> loadIntReg(const MCSubtargetInfo &STI, unsigned Reg,
                                       const APInt &Value) {
   SmallVector<MCInst, 8> MCInstSeq;
-  std::vector<MCInst> MatIntInstrs;
   MCRegister DestReg = Reg;
 
   RISCVMatInt::generateMCInstSeq(Value.getSExtValue(), STI, DestReg, MCInstSeq);
-  MatIntInstrs.resize(MCInstSeq.size());
-  std::copy(MCInstSeq.begin(), MCInstSeq.end(), MatIntInstrs.begin());
 
+  std::vector<MCInst> MatIntInstrs(MCInstSeq.begin(), MCInstSeq.end());
   return MatIntInstrs;
 }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/122988