[llvm] [LoopInterchange][NFC] autogenerate checks in inner-preheader-single-phi (PR #203843)

[via llvm-commits]

llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Madhur Amilkanthwar (madhur13490)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/203843.diff


1 Files Affected:

- (modified) llvm/test/Transforms/LoopInterchange/inner-preheader-single-phi.ll (+34-1) 


``````````diff
diff --git a/llvm/test/Transforms/LoopInterchange/inner-preheader-single-phi.ll b/llvm/test/Transforms/LoopInterchange/inner-preheader-single-phi.ll
index 6e9335469b3b2..5604311bec5e0 100644
--- a/llvm/test/Transforms/LoopInterchange/inner-preheader-single-phi.ll
+++ b/llvm/test/Transforms/LoopInterchange/inner-preheader-single-phi.ll
@@ -1,8 +1,41 @@
-; RUN: opt -passes=loop-interchange -loop-interchange-profitabilities=ignore --disable-output %s
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
+; RUN: opt -passes=loop-interchange -loop-interchange-profitabilities=ignore \
+; RUN:     -S %s | FileCheck %s
 ; Loop-interchange pass doesn't crash if the inner loop preheader has PHI nodes.
 
 
 define void @f(ptr %A) {
+; CHECK-LABEL: define void @f(
+; CHECK-SAME: ptr [[A:%.*]]) {
+; CHECK-NEXT:  [[ENTRY:.*:]]
+; CHECK-NEXT:    br label %[[INNER_PH:.*]]
+; CHECK:       [[OUTER_HEADER_PREHEADER:.*]]:
+; CHECK-NEXT:    br label %[[OUTER_HEADER:.*]]
+; CHECK:       [[OUTER_HEADER]]:
+; CHECK-NEXT:    [[I:%.*]] = phi i64 [ [[I_INC:%.*]], %[[OUTER_LATCH:.*]] ], [ 0, %[[OUTER_HEADER_PREHEADER]] ]
+; CHECK-NEXT:    br label %[[INNER_SPLIT1:.*]]
+; CHECK:       [[INNER_PH]]:
+; CHECK-NEXT:    br label %[[INNER:.*]]
+; CHECK:       [[INNER]]:
+; CHECK-NEXT:    [[J:%.*]] = phi i64 [ 0, %[[INNER_PH]] ], [ [[TMP0:%.*]], %[[INNER_SPLIT:.*]] ]
+; CHECK-NEXT:    br label %[[OUTER_HEADER_PREHEADER]]
+; CHECK:       [[INNER_SPLIT1]]:
+; CHECK-NEXT:    [[J_INC:%.*]] = add i64 [[J]], 1
+; CHECK-NEXT:    [[EC_J:%.*]] = icmp eq i64 [[J_INC]], 10
+; CHECK-NEXT:    br label %[[OUTER_BODY:.*]]
+; CHECK:       [[INNER_SPLIT]]:
+; CHECK-NEXT:    [[TMP0]] = add i64 [[J]], 1
+; CHECK-NEXT:    [[TMP1:%.*]] = icmp eq i64 [[TMP0]], 10
+; CHECK-NEXT:    br i1 [[TMP1]], label %[[EXIT:.*]], label %[[INNER]]
+; CHECK:       [[OUTER_BODY]]:
+; CHECK-NEXT:    br label %[[OUTER_LATCH]]
+; CHECK:       [[OUTER_LATCH]]:
+; CHECK-NEXT:    [[I_INC]] = add i64 [[I]], 1
+; CHECK-NEXT:    [[EC_I:%.*]] = icmp eq i64 [[I_INC]], 10
+; CHECK-NEXT:    br i1 [[EC_I]], label %[[INNER_SPLIT]], label %[[OUTER_HEADER]]
+; CHECK:       [[EXIT]]:
+; CHECK-NEXT:    ret void
+;
 entry:
   br label %outer.header
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/203843