[llvm] 3d3634e - [LV] Add extra test for D139927.

[Florian Hahn via llvm-commits]

Author: Florian Hahn
Date: 2022-12-14T22:47:05Z
New Revision: 3d3634e8bd1f5ce543453352b6ec2ae6f29be95e

URL: https://github.com/llvm/llvm-project/commit/3d3634e8bd1f5ce543453352b6ec2ae6f29be95e
DIFF: https://github.com/llvm/llvm-project/commit/3d3634e8bd1f5ce543453352b6ec2ae6f29be95e.diff

LOG: [LV] Add extra test for D139927.

Added: 
    

Modified: 
    llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll

Removed: 
    


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diff  --git a/llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll b/llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
index 821cf8fbdcd04..69391a7118657 100644
--- a/llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
+++ b/llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
@@ -361,7 +361,7 @@ exit:
 }
 
 ; Test case that requires sinking a recipe in a replicate region after another replicate region.
-define void @sink_replicate_region_after_replicate_region(i32* %ptr, i32 %x, i8 %y) optsize {
+define void @sink_replicate_region_after_replicate_region(i32* %ptr, i32* noalias %dst.2, i32 %x, i8 %y) optsize {
 ; CHECK-LABEL: sink_replicate_region_after_replicate_region
 ; CHECK:      VPlan 'Initial VPlan for VF={2},UF>=1' {
 ; CHECK-NEXT: Live-in vp<[[VEC_TC:%.+]]> = vector-trip-count
@@ -376,6 +376,7 @@ define void @sink_replicate_region_after_replicate_region(i32* %ptr, i32 %x, i8
 ; CHECK-NEXT:   EMIT vp<[[CAN_IV:%.+]]> = CANONICAL-INDUCTION
 ; CHECK-NEXT:   FIRST-ORDER-RECURRENCE-PHI ir<%recur> = phi ir<0>, ir<%recur.next>
 ; CHECK-NEXT:   WIDEN-INDUCTION %iv = phi 0, %iv.next, ir<1>
+; CHECK-NEXT:   vp<[[STEPS:%.+]]> = SCALAR-STEPS vp<[[CAN_IV]]>, ir<1>
 ; CHECK-NEXT:   EMIT vp<[[MASK:%.+]]> = icmp ule ir<%iv> vp<[[BTC]]>
 ; CHECK-NEXT: Successor(s): loop.0
 ; CHECK-EMPTY:
@@ -403,6 +404,9 @@ define void @sink_replicate_region_after_replicate_region(i32* %ptr, i32 %x, i8
 ; CHECK-NEXT: Successor(s): loop.1.split
 ; CHECK-EMPTY:
 ; CHECK-NEXT: loop.1.split:
+; CHECK-NEXT: Successor(s): loop.2
+; CHECK-EMPTY:
+; CHECK-NEXT: loop.2:
 ; CHECK-NEXT: Successor(s): pred.store
 ; CHECK-EMPTY:
 ; CHECK-NEXT: <xVFxUF> pred.store: {
@@ -412,18 +416,19 @@ define void @sink_replicate_region_after_replicate_region(i32* %ptr, i32 %x, i8
 ; CHECK-EMPTY:
 ; CHECK-NEXT:   pred.store.if:
 ; CHECK-NEXT:     REPLICATE ir<%rem.div> = sdiv ir<20>, vp<[[PRED]]>
-; CHECK-NEXT:     vp<[[STEPS:%.+]]> = SCALAR-STEPS vp<[[CAN_IV]]>, ir<1>
 ; CHECK-NEXT:     REPLICATE ir<%gep> = getelementptr ir<%ptr>, vp<[[STEPS]]>
 ; CHECK-NEXT:     REPLICATE store ir<%rem.div>, ir<%gep>
+; CHECK-NEXT:     REPLICATE ir<%gep.2> = getelementptr ir<%dst.2>, vp<[[STEPS]]>
+; CHECK-NEXT:     REPLICATE store ir<%rem.div>, ir<%gep.2>
 ; CHECK-NEXT:   Successor(s): pred.store.continue
 ; CHECK-EMPTY:
 ; CHECK-NEXT:   pred.store.continue:
 ; CHECK-NEXT:     PHI-PREDICATED-INSTRUCTION vp<[[PRED2:%.+]]> = ir<%rem.div>
 ; CHECK-NEXT:   No successors
 ; CHECK-NEXT: }
-; CHECK-NEXT: Successor(s): loop.2
+; CHECK-NEXT: Successor(s): loop.3
 ; CHECK-EMPTY:
-; CHECK-NEXT: loop.2:
+; CHECK-NEXT: loop.3:
 ; CHECK-NEXT:   EMIT vp<[[CAN_IV_NEXT:%.+]]> = VF * UF + vp<[[CAN_IV]]>
 ; CHECK-NEXT:   EMIT branch-on-count vp<[[CAN_IV_NEXT]]> vp<[[VEC_TC]]>
 ; CHECK-NEXT: No successors
@@ -445,6 +450,8 @@ loop:                                             ; preds = %loop, %entry
   %recur.next = sext i8 %y to i32
   %gep = getelementptr i32, i32* %ptr, i32 %iv
   store i32 %rem.div, i32* %gep
+  %gep.2 = getelementptr i32, i32* %dst.2, i32 %iv
+  store i32 %rem.div, i32* %gep.2
   %iv.next = add nsw i32 %iv, 1
   %C = icmp sgt i32 %iv.next, %recur.next
   br i1 %C, label %exit, label %loop