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

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Stanislav Mekhanoshin (rampitec)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/133398.diff


1 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp (+7-6) 


``````````diff
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));

``````````

</details>


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