127 lines
4.8 KiB
LLVM
127 lines
4.8 KiB
LLVM
; RUN: opt -passes=objc-arc -S < %s | FileCheck %s
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%0 = type opaque
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%struct.__NSConstantString_tag = type { ptr, i32, ptr, i64 }
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%struct.__block_descriptor = type { i64, i64 }
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@__CFConstantStringClassReference = external global [0 x i32]
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@.str = private unnamed_addr constant [4 x i8] c"abc\00", section "__TEXT,__cstring,cstring_literals", align 1
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@.str1 = private unnamed_addr constant [4 x i8] c"def\00", section "__TEXT,__cstring,cstring_literals", align 1
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@_unnamed_cfstring_ = private global %struct.__NSConstantString_tag { ptr @__CFConstantStringClassReference, i32 1992, ptr @.str, i64 3 }, section "__DATA,__cfstring", align 8 #0
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@_unnamed_cfstring_.1 = private global %struct.__NSConstantString_tag { ptr @__CFConstantStringClassReference, i32 1992, ptr @.str1, i64 3 }, section "__DATA,__cfstring", align 8 #0
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@_unnamed_cfstring_wo_attr = private global %struct.__NSConstantString_tag { ptr @__CFConstantStringClassReference, i32 1992, ptr @.str1, i64 3 }, section "__DATA,__cfstring", align 8
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@_NSConcreteGlobalBlock = external global ptr
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@.str.1 = private unnamed_addr constant [6 x i8] c"v8@?0\00", align 1
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@"__block_descriptor_32_e5_v8@?0l" = linkonce_odr hidden unnamed_addr constant { i64, i64, ptr, ptr } { i64 0, i64 32, ptr @.str.1, ptr null }, align 8
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@__block_literal_global = internal constant { ptr, i32, i32, ptr, ptr } { ptr @_NSConcreteGlobalBlock, i32 1342177280, i32 0, ptr @__globalBlock_block_invoke, ptr @"__block_descriptor_32_e5_v8@?0l" }, align 8 #0
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; CHECK-LABEL: define ptr @stringLiteral()
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; CHECK-NOT: call
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; CHECK: ret ptr @_unnamed_cfstring_
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define ptr @stringLiteral() {
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%1 = tail call ptr @llvm.objc.retain(ptr @_unnamed_cfstring_)
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%2 = call ptr @llvm.objc.autorelease(ptr @_unnamed_cfstring_)
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ret ptr @_unnamed_cfstring_
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}
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; CHECK-LABEL: define ptr @stringLiteral1()
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; CHECK-NEXT: call ptr @llvm.objc.retain(
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; CHECK-NEXT: call ptr @llvm.objc.autorelease(
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; CHECK-NEXT: ret ptr
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define ptr @stringLiteral1() {
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%1 = tail call ptr @llvm.objc.retain(ptr @_unnamed_cfstring_wo_attr)
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%2 = call ptr @llvm.objc.autorelease(ptr @_unnamed_cfstring_wo_attr)
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ret ptr @_unnamed_cfstring_wo_attr
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}
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; CHECK-LABEL: define ptr @globalBlock()
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; CHECK-NOT: call
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; CHECK-NEXT: ret ptr @__block_literal_global
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define ptr @globalBlock() {
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%1 = tail call ptr @llvm.objc.retainBlock(ptr @__block_literal_global)
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%2 = tail call ptr @llvm.objc.retainBlock(ptr %1)
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tail call void @llvm.objc.release(ptr %1)
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%3 = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %2)
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ret ptr %2
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}
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define internal void @__globalBlock_block_invoke(ptr nocapture readnone) {
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tail call void @foo()
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ret void
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}
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; CHECK: define ptr @test_conditional0(
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; CHECK: %[[PHI0:.*]] = phi ptr [ @_unnamed_cfstring_, %{{.*}} ], [ null, %{{.*}} ]
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; CHECK: %[[PHI1:.*]] = phi ptr [ @_unnamed_cfstring_, %{{.*}} ], [ %[[PHI0]], %{{.*}} ]
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; CHECK-NEXT: %[[PHI2:.*]] = phi ptr [ @_unnamed_cfstring_, %{{.*}} ], [ %{{.*}}, %{{.*}} ]
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; CHECK-NEXT: %[[V5:.*]] = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %[[PHI2]])
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; CHECK-NEXT: ret ptr %[[PHI2]]
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define ptr @test_conditional0(i32 %i, ptr %b) {
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entry:
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%v0 = icmp eq i32 %i, 1
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br i1 %v0, label %bb2, label %bb1
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bb1:
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%v1 = icmp eq i32 %i, 2
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br i1 %v1, label %bb2, label %return
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bb2:
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%phi0 = phi ptr [ @_unnamed_cfstring_, %entry ], [ null, %bb1 ]
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br label %return
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return:
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%phi1 = phi ptr [ @_unnamed_cfstring_, %bb1 ], [ %phi0, %bb2 ]
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%phi2 = phi ptr [ @_unnamed_cfstring_, %bb1 ], [ %b, %bb2 ]
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%v3 = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %phi1)
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%v5 = tail call ptr @llvm.objc.autoreleaseReturnValue(ptr %phi2)
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ret ptr %phi2
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}
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; CHECK-LABEL: define void @test_conditional1(
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; CHECK-NOT: @llvm.objc
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; CHECK: ret void
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define void @test_conditional1(i32 %i) {
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entry:
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%v0 = add nsw i32 %i, -1
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%c1 = icmp eq i32 %v0, 0
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br i1 %c1, label %while.end, label %while.body
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while.body:
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%v1 = phi i32 [ %v5, %if.end ], [ %v0, %entry ]
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%v2 = phi ptr [ %v4, %if.end ], [ @_unnamed_cfstring_.1, %entry ]
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%v3 = tail call ptr @llvm.objc.retain(ptr %v2)
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%cmp = icmp eq i32 %v1, 2
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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call void @llvm.objc.release(ptr %v2)
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br label %if.end
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if.end:
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%v4 = phi ptr [ @_unnamed_cfstring_, %if.then ], [ %v2, %while.body ]
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call void @llvm.objc.release(ptr %v2)
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%v5 = add nsw i32 %v1, -1
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%tobool = icmp eq i32 %v5, 0
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br i1 %tobool, label %while.end, label %while.body
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while.end:
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%v6 = phi ptr [ null, %entry ], [ %v4, %if.end ]
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call void @llvm.objc.release(ptr %v6)
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ret void
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}
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declare void @foo()
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declare ptr @llvm.objc.retain(ptr) local_unnamed_addr
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declare ptr @llvm.objc.autoreleaseReturnValue(ptr) local_unnamed_addr
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declare ptr @llvm.objc.retainBlock(ptr) local_unnamed_addr
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declare void @llvm.objc.release(ptr) local_unnamed_addr
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declare ptr @llvm.objc.autorelease(ptr) local_unnamed_addr
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attributes #0 = { "objc_arc_inert" }
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