[llvm] d486a4c - [ARM] Ensure extra uses are not dead in tail-folding-counting-down.ll. NFC

[David Green via llvm-commits]

Author: David Green
Date: 2024-04-29T15:47:24+01:00
New Revision: d486a4c29a331d3bfb3649a8a0aa2ba4970a6455

URL: https://github.com/llvm/llvm-project/commit/d486a4c29a331d3bfb3649a8a0aa2ba4970a6455
DIFF: https://github.com/llvm/llvm-project/commit/d486a4c29a331d3bfb3649a8a0aa2ba4970a6455.diff

LOG: [ARM] Ensure extra uses are not dead in tail-folding-counting-down.ll. NFC

This might help keep the test valid if vplan is removing dead intructions.

Added: 
    

Modified: 
    llvm/test/Transforms/LoopVectorize/ARM/tail-folding-counting-down.ll

Removed: 
    


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diff  --git a/llvm/test/Transforms/LoopVectorize/ARM/tail-folding-counting-down.ll b/llvm/test/Transforms/LoopVectorize/ARM/tail-folding-counting-down.ll
index 5c1966fa7a2de7..0f524561eadc24 100644
--- a/llvm/test/Transforms/LoopVectorize/ARM/tail-folding-counting-down.ll
+++ b/llvm/test/Transforms/LoopVectorize/ARM/tail-folding-counting-down.ll
@@ -107,9 +107,10 @@ while.body:
   %1 = load i8, ptr %b.addr.07, align 1
   %add = add i8 %1, %0
   %incdec.ptr4 = getelementptr inbounds i8, ptr %c.addr.08, i32 1
-  store i8 %add, ptr %c.addr.08, align 1
   %cmp = icmp sgt i32 %N.addr.09, 1
   %select = select i1 %cmp, i8 %0, i8 %1
+  %add2 = add i8 %add, %select
+  store i8 %add2, ptr %c.addr.08, align 1
   br i1 %cmp, label %while.body, label %while.end.loopexit
 
 while.end.loopexit: