[llvm] [RISCV] Add assertions to VSETVLIInfo accessors. NFC (PR #169462)

[Craig Topper via llvm-commits]

https://github.com/topperc created https://github.com/llvm/llvm-project/pull/169462

None

>From 2a1082cc6a0dee866d2815358ca6cf5e3e194956 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper at sifive.com>
Date: Mon, 24 Nov 2025 22:37:31 -0800
Subject: [PATCH] [RISCV] Add assertions to VSETVLIInfo accessors. NFC

---
 llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp | 36 ++++++++++++++++----
 1 file changed, 30 insertions(+), 6 deletions(-)

diff --git a/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp b/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
index 2ddc9b0adb9e1..2ab8c113294f4 100644
--- a/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
+++ b/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
@@ -607,12 +607,36 @@ class VSETVLIInfo {
     }
   }
 
-  unsigned getSEW() const { return SEW; }
-  RISCVVType::VLMUL getVLMUL() const { return VLMul; }
-  bool getTailAgnostic() const { return TailAgnostic; }
-  bool getMaskAgnostic() const { return MaskAgnostic; }
-  bool getAltFmt() const { return AltFmt; }
-  unsigned getTWiden() const { return TWiden; }
+  unsigned getSEW() const {
+    assert(isValid() && !isUnknown() &&
+           "Can't use VTYPE for uninitialized or unknown");
+    return SEW;
+  }
+  RISCVVType::VLMUL getVLMUL() const {
+    assert(isValid() && !isUnknown() &&
+           "Can't use VTYPE for uninitialized or unknown");
+    return VLMul;
+  }
+  bool getTailAgnostic() const {
+    assert(isValid() && !isUnknown() &&
+           "Can't use VTYPE for uninitialized or unknown");
+    return TailAgnostic;
+  }
+  bool getMaskAgnostic() const {
+    assert(isValid() && !isUnknown() &&
+           "Can't use VTYPE for uninitialized or unknown");
+    return MaskAgnostic;
+  }
+  bool getAltFmt() const {
+    assert(isValid() && !isUnknown() &&
+           "Can't use VTYPE for uninitialized or unknown");
+    return AltFmt;
+  }
+  unsigned getTWiden() const {
+    assert(isValid() && !isUnknown() &&
+           "Can't use VTYPE for uninitialized or unknown");
+    return TWiden;
+  }
 
   bool hasNonZeroAVL(const LiveIntervals *LIS) const {
     if (hasAVLImm())