[flang-commits] [flang] [flang] Enable hlfir.sum inlining by default. (PR #119937)

[via flang-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-flang-fir-hlfir

Author: Slava Zakharin (vzakhari)

<details>
<summary>Changes</summary>

There is already a LIT test for hlfir.sum inlining that uses
the engineering option. I would like to keep the option
for short period of time to be able to revert
in case of performance regressions that I was not able to see.


---
Full diff: https://github.com/llvm/llvm-project/pull/119937.diff


1 Files Affected:

- (modified) flang/lib/Optimizer/HLFIR/Transforms/SimplifyHLFIRIntrinsics.cpp (+2-1) 


``````````diff
diff --git a/flang/lib/Optimizer/HLFIR/Transforms/SimplifyHLFIRIntrinsics.cpp b/flang/lib/Optimizer/HLFIR/Transforms/SimplifyHLFIRIntrinsics.cpp
index 3e9d956b6e56dd..a90c5a9ef5a4e5 100644
--- a/flang/lib/Optimizer/HLFIR/Transforms/SimplifyHLFIRIntrinsics.cpp
+++ b/flang/lib/Optimizer/HLFIR/Transforms/SimplifyHLFIRIntrinsics.cpp
@@ -33,7 +33,8 @@ namespace hlfir {
 static llvm::cl::opt<bool>
     simplifySum("flang-simplify-hlfir-sum",
                 llvm::cl::desc("Expand hlfir.sum into an inline sequence"),
-                llvm::cl::init(false));
+                llvm::cl::init(true));
+
 namespace {
 
 class TransposeAsElementalConversion

``````````

</details>


https://github.com/llvm/llvm-project/pull/119937