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

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-risc-v

Author: Jim Lin (tclin914)

<details>
<summary>Changes</summary>

The maximum usage of these SmallVectors is only 6 elements.

---
Full diff: https://github.com/llvm/llvm-project/pull/145650.diff


1 Files Affected:

- (modified) clang/include/clang/Basic/riscv_vector.td (+3-3) 


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

``````````

</details>


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