[NewGVN][NFC] precommit tests for PR53277

llvm · Jan 23, 2022 · 1a5dea9 · 1a5dea9
1 parent 8e382ae
commit 1a5dea9
Showing 1 changed file with 148 additions and 0 deletions.
diff --git a/llvm/test/Transforms/NewGVN/phi-of-ops-loads.ll b/llvm/test/Transforms/NewGVN/phi-of-ops-loads.ll
@@ -0,0 +1,148 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes=newgvn -enable-phi-of-ops=true -S -o - %s | FileCheck %s
+
+define void @store-in-loop(i8* %p, i8* %q) {
+; CHECK-LABEL: @store-in-loop(
+; CHECK-NEXT:  bb56:
+; CHECK-NEXT:    br label [[BB57:%.*]]
+; CHECK:       bb57:
+; CHECK-NEXT:    [[PHIOFOPS:%.*]] = phi i1 [ true, [[BB56:%.*]] ], [ [[N62:%.*]], [[BB229:%.*]] ]
+; CHECK-NEXT:    [[N59:%.*]] = phi i1 [ false, [[BB229]] ], [ true, [[BB56]] ]
+; CHECK-NEXT:    [[IDX:%.*]] = phi i8 [ 0, [[BB56]] ], [ [[INC:%.*]], [[BB229]] ]
+; CHECK-NEXT:    [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
+; CHECK-NEXT:    [[N62]] = icmp ne i8 [[N60]], 2
+; CHECK-NEXT:    br i1 [[PHIOFOPS]], label [[BB229]], label [[BB237:%.*]]
+; CHECK:       bb229:
+; CHECK-NEXT:    [[INC]] = add i8 [[IDX]], 1
+; CHECK-NEXT:    store i8 [[INC]], i8* [[Q:%.*]], align 1
+; CHECK-NEXT:    br label [[BB57]]
+; CHECK:       bb237:
+; CHECK-NEXT:    ret void
+;
+bb56:
+  br label %bb57
+
+bb57:
+  %n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
+  %idx = phi i8 [0, %bb56], [%inc, %bb229]
+  %n60 = load i8, i8* %p
+  %n62 = icmp ne i8 %n60, 2
+  %n63 = or i1 %n59, %n62
+  br i1 %n63, label %bb229, label %bb237
+
+bb229:
+  %inc = add i8 %idx, 1
+  store i8 %inc, i8* %q
+  br label %bb57
+
+bb237:
+  ret void
+}
+
+define void @no-alias-store-in-loop(i8* noalias %p, i8* noalias %q) {
+; CHECK-LABEL: @no-alias-store-in-loop(
+; CHECK-NEXT:  bb56:
+; CHECK-NEXT:    br label [[BB57:%.*]]
+; CHECK:       bb57:
+; CHECK-NEXT:    [[PHIOFOPS:%.*]] = phi i1 [ true, [[BB56:%.*]] ], [ [[N62:%.*]], [[BB229:%.*]] ]
+; CHECK-NEXT:    [[N59:%.*]] = phi i1 [ false, [[BB229]] ], [ true, [[BB56]] ]
+; CHECK-NEXT:    [[IDX:%.*]] = phi i8 [ 0, [[BB56]] ], [ [[INC:%.*]], [[BB229]] ]
+; CHECK-NEXT:    [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
+; CHECK-NEXT:    [[N62]] = icmp ne i8 [[N60]], 2
+; CHECK-NEXT:    br i1 [[PHIOFOPS]], label [[BB229]], label [[BB237:%.*]]
+; CHECK:       bb229:
+; CHECK-NEXT:    [[INC]] = add i8 [[IDX]], 1
+; CHECK-NEXT:    store i8 [[INC]], i8* [[Q:%.*]], align 1
+; CHECK-NEXT:    br label [[BB57]]
+; CHECK:       bb237:
+; CHECK-NEXT:    ret void
+;
+bb56:
+  br label %bb57
+
+bb57:
+  %n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
+  %idx = phi i8 [0, %bb56], [%inc, %bb229]
+  %n60 = load i8, i8* %p
+  %n62 = icmp ne i8 %n60, 2
+  %n63 = or i1 %n59, %n62
+  br i1 %n63, label %bb229, label %bb237
+
+bb229:
+  %inc = add i8 %idx, 1
+  store i8 %inc, i8* %q
+  br label %bb57
+
+bb237:
+  ret void
+}
+
+define void @function-in-loop(i8* %p) {
+; CHECK-LABEL: @function-in-loop(
+; CHECK-NEXT:  bb56:
+; CHECK-NEXT:    br label [[BB57:%.*]]
+; CHECK:       bb57:
+; CHECK-NEXT:    [[PHIOFOPS:%.*]] = phi i1 [ true, [[BB56:%.*]] ], [ [[N62:%.*]], [[BB229:%.*]] ]
+; CHECK-NEXT:    [[N59:%.*]] = phi i1 [ false, [[BB229]] ], [ true, [[BB56]] ]
+; CHECK-NEXT:    [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
+; CHECK-NEXT:    [[N62]] = icmp ne i8 [[N60]], 2
+; CHECK-NEXT:    br i1 [[PHIOFOPS]], label [[BB229]], label [[BB237:%.*]]
+; CHECK:       bb229:
+; CHECK-NEXT:    call void @f()
+; CHECK-NEXT:    br label [[BB57]]
+; CHECK:       bb237:
+; CHECK-NEXT:    ret void
+;
+bb56:
+  br label %bb57
+
+bb57:
+  %n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
+  %n60 = load i8, i8* %p
+  %n62 = icmp ne i8 %n60, 2
+  %n63 = or i1 %n59, %n62
+  br i1 %n63, label %bb229, label %bb237
+
+bb229:
+  call void @f()
+  br label %bb57
+
+bb237:
+  ret void
+}
+
+define void @nowrite-function-in-loop(i8* %p) {
+; CHECK-LABEL: @nowrite-function-in-loop(
+; CHECK-NEXT:  bb56:
+; CHECK-NEXT:    br label [[BB57:%.*]]
+; CHECK:       bb57:
+; CHECK-NEXT:    [[PHIOFOPS:%.*]] = phi i1 [ true, [[BB56:%.*]] ], [ [[N62:%.*]], [[BB229:%.*]] ]
+; CHECK-NEXT:    [[N59:%.*]] = phi i1 [ false, [[BB229]] ], [ true, [[BB56]] ]
+; CHECK-NEXT:    [[N60:%.*]] = load i8, i8* [[P:%.*]], align 1
+; CHECK-NEXT:    [[N62]] = icmp ne i8 [[N60]], 2
+; CHECK-NEXT:    br i1 [[PHIOFOPS]], label [[BB229]], label [[BB237:%.*]]
+; CHECK:       bb229:
+; CHECK-NEXT:    call void @f() #[[ATTR0:[0-9]+]]
+; CHECK-NEXT:    br label [[BB57]]
+; CHECK:       bb237:
+; CHECK-NEXT:    ret void
+;
+bb56:
+  br label %bb57
+
+bb57:
+  %n59 = phi i1 [ false, %bb229 ], [ true, %bb56 ]
+  %n60 = load i8, i8* %p
+  %n62 = icmp ne i8 %n60, 2
+  %n63 = or i1 %n59, %n62
+  br i1 %n63, label %bb229, label %bb237
+
+bb229:
+  call void @f() inaccessiblememonly
+  br label %bb57
+
+bb237:
+  ret void
+}
+
+declare void @f()