[clang] [RISCV] Decrease the capacity of SmallVector to 6. NFC. (PR #145650)

[Jim Lin via cfe-commits]

https://github.com/tclin914 created https://github.com/llvm/llvm-project/pull/145650

The maximum usage of these SmallVectors is only 6 elements.

>From 233cb3f6c7bfa26d2c9010bb3d6108229a5002fc Mon Sep 17 00:00:00 2001
From: Jim Lin <jim at andestech.com>
Date: Wed, 25 Jun 2025 16:04:07 +0800
Subject: [PATCH] [RISCV] Decrease the capacity of SmallVector to 6. NFC.

The maximum usage of these SmallVectors is only 6 elements.
---
 clang/include/clang/Basic/riscv_vector.td | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/clang/include/clang/Basic/riscv_vector.td b/clang/include/clang/Basic/riscv_vector.td
index c6fd8a1a45fd1..104077b274f92 100644
--- a/clang/include/clang/Basic/riscv_vector.td
+++ b/clang/include/clang/Basic/riscv_vector.td
@@ -1816,7 +1816,7 @@ let ManualCodegen = [{
     // Unmasked: (passthru, op0, round_mode, vl)
     // Masked:   (passthru, op0, mask, frm, vl, policy)
 
-    SmallVector<llvm::Value*, 7> Operands;
+    SmallVector<llvm::Value*, 6> Operands;
     bool HasMaskedOff = !(
         (IsMasked && (PolicyAttrs & RVV_VTA) && (PolicyAttrs & RVV_VMA)) ||
         (!IsMasked && PolicyAttrs & RVV_VTA));
@@ -2021,7 +2021,7 @@ let ManualCodegen = [{
     // LLVM intrinsic
     // Unmasked: (passthru, op0, frm, vl)
     // Masked:   (passthru, op0, mask, frm, vl, policy)
-    SmallVector<llvm::Value*, 7> Operands;
+    SmallVector<llvm::Value*, 6> Operands;
     bool HasMaskedOff = !(
         (IsMasked && (PolicyAttrs & RVV_VTA) && (PolicyAttrs & RVV_VMA)) ||
         (!IsMasked && PolicyAttrs & RVV_VTA));
@@ -2225,7 +2225,7 @@ let ManualCodegen = [{
     // Unmasked: (passthru, op0, op1, round_mode, vl)
     // Masked:   (passthru, vector_in, vector_in/scalar_in, mask, frm, vl, policy)
 
-    SmallVector<llvm::Value*, 7> Operands;
+    SmallVector<llvm::Value*, 6> Operands;
     bool HasMaskedOff = !(
         (IsMasked && (PolicyAttrs & RVV_VTA) && (PolicyAttrs & RVV_VMA)) ||
         (!IsMasked && PolicyAttrs & RVV_VTA));