[llvm] [AMDGPU] Fix the comment wrt SSrc_* RCs. NFC. (PR #153711)

[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/153711.diff


1 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/SIRegisterInfo.td (+2-1) 


``````````diff
diff --git a/llvm/lib/Target/AMDGPU/SIRegisterInfo.td b/llvm/lib/Target/AMDGPU/SIRegisterInfo.td
index 81655f5a829fb..0293d4018770f 100644
--- a/llvm/lib/Target/AMDGPU/SIRegisterInfo.td
+++ b/llvm/lib/Target/AMDGPU/SIRegisterInfo.td
@@ -1166,7 +1166,8 @@ class RegOrImmOperand <RegisterClass RegClass, string OperandTypeName>
 }
 
 //===----------------------------------------------------------------------===//
-//  SSrc_* Operands with an SGPR or a 32-bit immediate
+//  SSrc_* Operands with an SGPR, a 32-bit immediate, or 64-bit immediate
+//  if supported by target.
 //===----------------------------------------------------------------------===//
 
 class SrcRegOrImm9<RegisterClass regClass, string operandType>

``````````

</details>


https://github.com/llvm/llvm-project/pull/153711