[llvm] Regalloc: Add operator >= to EvictionCost (PR #160070)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-regalloc

Author: Matt Arsenault (arsenm)

<details>
<summary>Changes</summary>

Make the actual use context less ugly.

---
Full diff: https://github.com/llvm/llvm-project/pull/160070.diff


2 Files Affected:

- (modified) llvm/include/llvm/CodeGen/RegAllocEvictionAdvisor.h (+2) 
- (modified) llvm/lib/CodeGen/RegAllocEvictionAdvisor.cpp (+1-1) 


``````````diff
diff --git a/llvm/include/llvm/CodeGen/RegAllocEvictionAdvisor.h b/llvm/include/llvm/CodeGen/RegAllocEvictionAdvisor.h
index e4f0932c3edc8..1020c5f97dd31 100644
--- a/llvm/include/llvm/CodeGen/RegAllocEvictionAdvisor.h
+++ b/llvm/include/llvm/CodeGen/RegAllocEvictionAdvisor.h
@@ -91,6 +91,8 @@ struct EvictionCost {
     return std::tie(BrokenHints, MaxWeight) <
            std::tie(O.BrokenHints, O.MaxWeight);
   }
+
+  bool operator>=(const EvictionCost &O) const { return !(*this < O); }
 };
 
 /// Interface to the eviction advisor, which is responsible for making a
diff --git a/llvm/lib/CodeGen/RegAllocEvictionAdvisor.cpp b/llvm/lib/CodeGen/RegAllocEvictionAdvisor.cpp
index 9b23a6aac629a..0d44ddc428570 100644
--- a/llvm/lib/CodeGen/RegAllocEvictionAdvisor.cpp
+++ b/llvm/lib/CodeGen/RegAllocEvictionAdvisor.cpp
@@ -308,7 +308,7 @@ bool DefaultEvictionAdvisor::canEvictInterferenceBasedOnCost(
       Cost.BrokenHints += BreaksHint;
       Cost.MaxWeight = std::max(Cost.MaxWeight, Intf->weight());
       // Abort if this would be too expensive.
-      if (!(Cost < MaxCost))
+      if (Cost >= MaxCost)
         return false;
       if (Urgent)
         continue;

``````````

</details>


https://github.com/llvm/llvm-project/pull/160070