[llvm] [AMDGPU] Hoist some constant stuff out of the loop in AMDGPUAsmParser.cpp. NFC. (PR #133398)

[Stanislav Mekhanoshin via llvm-commits]

https://github.com/rampitec created https://github.com/llvm/llvm-project/pull/133398

None

>From 2ad029b233a0155935b1dea458606504f35c24e9 Mon Sep 17 00:00:00 2001
From: Stanislav Mekhanoshin <Stanislav.Mekhanoshin at amd.com>
Date: Fri, 28 Mar 2025 02:19:28 -0700
Subject: [PATCH] [AMDGPU] Hoist some constant stuff out of the loop in
 AMDGPUAsmParser.cpp. NFC.

---
 .../lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp b/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
index 82e310d73b69a..2baedf370c5a8 100644
--- a/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
+++ b/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
@@ -9428,6 +9428,13 @@ void AMDGPUAsmParser::cvtVOP3DPP(MCInst &Inst, const OperandVector &Operands,
   }
 
   int Fi = 0;
+  int VdstInIdx = AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::vdst_in);
+  bool IsVOP3CvtSrDpp =
+      Opc == AMDGPU::V_CVT_SR_BF8_F32_gfx12_e64_dpp8_gfx12 ||
+      Opc == AMDGPU::V_CVT_SR_FP8_F32_gfx12_e64_dpp8_gfx12 ||
+      Opc == AMDGPU::V_CVT_SR_BF8_F32_gfx12_e64_dpp_gfx12 ||
+      Opc == AMDGPU::V_CVT_SR_FP8_F32_gfx12_e64_dpp_gfx12;
+
   for (unsigned E = Operands.size(); I != E; ++I) {
 
     if (IsMAC) {
@@ -9442,16 +9449,10 @@ void AMDGPUAsmParser::cvtVOP3DPP(MCInst &Inst, const OperandVector &Operands,
       }
     }
 
-    int VdstInIdx = AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::vdst_in);
     if (VdstInIdx == static_cast<int>(Inst.getNumOperands())) {
       Inst.addOperand(Inst.getOperand(0));
     }
 
-    bool IsVOP3CvtSrDpp =
-        Opc == AMDGPU::V_CVT_SR_BF8_F32_gfx12_e64_dpp8_gfx12 ||
-        Opc == AMDGPU::V_CVT_SR_FP8_F32_gfx12_e64_dpp8_gfx12 ||
-        Opc == AMDGPU::V_CVT_SR_BF8_F32_gfx12_e64_dpp_gfx12 ||
-        Opc == AMDGPU::V_CVT_SR_FP8_F32_gfx12_e64_dpp_gfx12;
     if (IsVOP3CvtSrDpp) {
       if (Src2ModIdx == static_cast<int>(Inst.getNumOperands())) {
         Inst.addOperand(MCOperand::createImm(0));