[llvm] 2fda8ca - [LAA] Auto-generate checks for forward-loop-carried.ll

[Florian Hahn via llvm-commits]

Author: Florian Hahn
Date: 2023-11-27T10:06:17Z
New Revision: 2fda8ca6da736ac5ead87b1301400d22f8b33637

URL: https://github.com/llvm/llvm-project/commit/2fda8ca6da736ac5ead87b1301400d22f8b33637
DIFF: https://github.com/llvm/llvm-project/commit/2fda8ca6da736ac5ead87b1301400d22f8b33637.diff

LOG: [LAA] Auto-generate checks for forward-loop-carried.ll

Auto-generate checks for -loop-carried.ll to make it easier to update in
follow-on patch. As this test only checks the dependence, mark pointers
as noalias to avoid also checking various runtime pointer check groups.

Added: 
    

Modified: 
    llvm/test/Analysis/LoopAccessAnalysis/forward-loop-carried.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/Analysis/LoopAccessAnalysis/forward-loop-carried.ll b/llvm/test/Analysis/LoopAccessAnalysis/forward-loop-carried.ll
index 650887f2f6f5164..2b5bad49da1efa7 100644
--- a/llvm/test/Analysis/LoopAccessAnalysis/forward-loop-carried.ll
+++ b/llvm/test/Analysis/LoopAccessAnalysis/forward-loop-carried.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4
 ; RUN: opt -passes='print<access-info>' -disable-output  < %s 2>&1 | FileCheck %s
 
 ;   for (unsigned i = 0; i < 100; i++) {
@@ -7,13 +8,23 @@
 
 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
 
-define void @f(ptr %A, ptr %B, ptr %C, i64 %N) {
-
-; CHECK: Dependences:
-; CHECK-NEXT: Forward:
-; CHECK-NEXT:   store i32 %a_p1, ptr %Aidx_ahead, align 4 ->
-; CHECK-NEXT:   %a = load i32, ptr %Aidx, align 4
-
+define void @forward_loop_carried(ptr noalias %A, ptr noalias %B, ptr noalias %C, i64 %N) {
+; CHECK-LABEL: 'forward_loop_carried'
+; CHECK-NEXT:    for.body:
+; CHECK-NEXT:      Memory dependences are safe
+; CHECK-NEXT:      Dependences:
+; CHECK-NEXT:        Forward:
+; CHECK-NEXT:            store i32 %a_p1, ptr %Aidx_ahead, align 4 ->
+; CHECK-NEXT:            %a = load i32, ptr %Aidx, align 4
+; CHECK-EMPTY:
+; CHECK-NEXT:      Run-time memory checks:
+; CHECK-NEXT:      Grouped accesses:
+; CHECK-EMPTY:
+; CHECK-NEXT:      Non vectorizable stores to invariant address were not found in loop.
+; CHECK-NEXT:      SCEV assumptions:
+; CHECK-EMPTY:
+; CHECK-NEXT:      Expressions re-written:
+;
 entry:
   br label %for.body