[GVN] Regenerate test checks (NFC)

Author: nikic

llvm/test/Transforms/GVN/PRE/pre-after-rle.ll

@@ -1,11 +1,32 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -passes='require<phi-values>,gvn' -S < %s | FileCheck %s
 
 declare noalias i8* @malloc(i64)
 
 ; Detecting that %s is fully redundant should let us detect that %w is partially
 ; redundant.
 define void @fn1(i32** noalias %start, i32* %width, i32 %h) {
-; CHECK-LABEL: @fn1
+; CHECK-LABEL: @fn1(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[CALL:%.*]] = tail call noalias i8* @malloc(i64 1024)
+; CHECK-NEXT:    [[CALL_CAST:%.*]] = bitcast i8* [[CALL]] to i32*
+; CHECK-NEXT:    store i32* [[CALL_CAST]], i32** [[START:%.*]], align 8
+; CHECK-NEXT:    br label [[PREHEADER:%.*]]
+; CHECK:       preheader:
+; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 1, [[H:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[PREHEADER_BODY_CRIT_EDGE:%.*]], label [[EXIT:%.*]]
+; CHECK:       preheader.body_crit_edge:
+; CHECK-NEXT:    [[W_PRE:%.*]] = load i32, i32* [[WIDTH:%.*]], align 8
+; CHECK-NEXT:    br label [[BODY:%.*]]
+; CHECK:       body:
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[PREHEADER_BODY_CRIT_EDGE]] ], [ [[J_NEXT:%.*]], [[BODY]] ]
+; CHECK-NEXT:    store i32 0, i32* [[CALL_CAST]], align 4
+; CHECK-NEXT:    [[J_NEXT]] = add nuw nsw i32 [[J]], 1
+; CHECK-NEXT:    [[CMP3:%.*]] = icmp slt i32 [[J_NEXT]], [[W_PRE]]
+; CHECK-NEXT:    br i1 [[CMP3]], label [[BODY]], label [[PREHEADER]]
+; CHECK:       exit:
+; CHECK-NEXT:    ret void
+;
 entry:
   %call = tail call noalias i8* @malloc(i64 1024)
   %call.cast = bitcast i8* %call to i32*
@@ -16,12 +37,6 @@ preheader:
   %cmp = icmp slt i32 1, %h
   br i1 %cmp, label %body, label %exit
 
-; CHECK-LABEL: preheader.body_crit_edge:
-; CHECK: load i32, i32* %width, align 8
-
-; CHECK-LABEL: body:
-; CHECK-NOT: load i32*, i32** %start, align 8
-; CHECK-NOT: load i32, i32* %width, align 8
 body:
   %j = phi i32 [ 0, %preheader ], [ %j.next, %body ]
   %s = load i32*, i32** %start, align 8
@@ -40,7 +55,35 @@ exit:
 ; %w is partially redundant requires alias analysis that can analyze those
 ; values.
 define void @fn2(i32** noalias %start, i32* %width, i32 %h, i32 %arg) {
-; CHECK-LABEL: @fn2
+; CHECK-LABEL: @fn2(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[CALL:%.*]] = tail call noalias i8* @malloc(i64 1024)
+; CHECK-NEXT:    [[CALL_CAST:%.*]] = bitcast i8* [[CALL]] to i32*
+; CHECK-NEXT:    [[CMP1:%.*]] = icmp slt i32 [[ARG:%.*]], 0
+; CHECK-NEXT:    br i1 [[CMP1]], label [[IF:%.*]], label [[ELSE:%.*]]
+; CHECK:       if:
+; CHECK-NEXT:    store i32* [[CALL_CAST]], i32** [[START:%.*]], align 8
+; CHECK-NEXT:    br label [[PREHEADER:%.*]]
+; CHECK:       else:
+; CHECK-NEXT:    [[GEP:%.*]] = getelementptr inbounds i32, i32* [[CALL_CAST]], i32 [[ARG]]
+; CHECK-NEXT:    store i32* [[GEP]], i32** [[START]], align 8
+; CHECK-NEXT:    br label [[PREHEADER]]
+; CHECK:       preheader:
+; CHECK-NEXT:    [[S:%.*]] = phi i32* [ [[S]], [[BODY:%.*]] ], [ [[GEP]], [[ELSE]] ], [ [[CALL_CAST]], [[IF]] ]
+; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 1, [[H:%.*]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[PREHEADER_BODY_CRIT_EDGE:%.*]], label [[EXIT:%.*]]
+; CHECK:       preheader.body_crit_edge:
+; CHECK-NEXT:    [[W_PRE:%.*]] = load i32, i32* [[WIDTH:%.*]], align 8
+; CHECK-NEXT:    br label [[BODY]]
+; CHECK:       body:
+; CHECK-NEXT:    [[J:%.*]] = phi i32 [ 0, [[PREHEADER_BODY_CRIT_EDGE]] ], [ [[J_NEXT:%.*]], [[BODY]] ]
+; CHECK-NEXT:    store i32 0, i32* [[S]], align 4
+; CHECK-NEXT:    [[J_NEXT]] = add nuw nsw i32 [[J]], 1
+; CHECK-NEXT:    [[CMP3:%.*]] = icmp slt i32 [[J_NEXT]], [[W_PRE]]
+; CHECK-NEXT:    br i1 [[CMP3]], label [[BODY]], label [[PREHEADER]]
+; CHECK:       exit:
+; CHECK-NEXT:    ret void
+;
 entry:
   %call = tail call noalias i8* @malloc(i64 1024)
   %call.cast = bitcast i8* %call to i32*
@@ -56,19 +99,10 @@ else:
   store i32* %gep, i32** %start, align 8
   br label %preheader
 
-; CHECK-LABEL: preheader:
-; CHECK: %s = phi i32* [ %s, %body ], [ %gep, %else ], [ %call.cast, %if ]
-
 preheader:
   %cmp = icmp slt i32 1, %h
   br i1 %cmp, label %body, label %exit
 
-; CHECK-LABEL: preheader.body_crit_edge:
-; CHECK: load i32, i32* %width, align 8
-
-; CHECK-LABEL: body:
-; CHECK-NOT: load i32*, i32** %start, align 8
-; CHECK-NOT: load i32, i32* %width, align 8
 body:
   %j = phi i32 [ 0, %preheader ], [ %j.next, %body ]
   %s = load i32*, i32** %start, align 8