Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/test/Transforms/ObjCARC/gvn.ll

@@ -1,41 +0,0 @@
-; RUN: opt -S -basicaa -objc-arc-aa -gvn < %s | FileCheck %s
-
-@x = common global i8* null, align 8
-
-declare i8* @objc_retain(i8*)
-declare i32 @objc_sync_enter(i8*)
-declare i32 @objc_sync_exit(i8*)
-
-; GVN should be able to eliminate this redundant load, with ARC-specific
-; alias analysis.
-
-; CHECK: define i8* @test0(i32 %n)
-; CHECK-NEXT: entry:
-; CHECK-NEXT: %s = load i8*, i8** @x
-; CHECK-NOT: load
-; CHECK: ret i8* %s
-; CHECK-NEXT: }
-define i8* @test0(i32 %n) nounwind {
-entry:
-  %s = load i8*, i8** @x
-  %0 = tail call i8* @objc_retain(i8* %s) nounwind
-  %t = load i8*, i8** @x
-  ret i8* %t
-}
-
-; GVN should not be able to eliminate this redundant load, with ARC-specific
-; alias analysis.
-
-; CHECK-LABEL: define i8* @test1(
-; CHECK: load
-; CHECK: load
-; CHECK: ret i8* %t
-; CHECK: }
-define i8* @test1(i32 %n) nounwind {
-entry:
-  %s = load i8*, i8** @x
-  %0 = call i32 @objc_sync_enter(i8* %s)
-  %t = load i8*, i8** @x
-  %1 = call i32 @objc_sync_exit(i8* %s)
-  ret i8* %t
-}