mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-09 15:57:28 +00:00
9fbd318d36
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133108 91177308-0d34-0410-b5e6-96231b3b80d8
87 lines
2.5 KiB
LLVM
87 lines
2.5 KiB
LLVM
; RUN: opt -S -objc-arc < %s | FileCheck %s
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; rdar://9503416
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; Detect loop boundaries and don't move retains and releases
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; across them.
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declare void @use_pointer(i8*)
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declare i8* @objc_retain(i8*)
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declare void @objc_release(i8*)
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; CHECK: define void @test0(
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; CHECK: call i8* @objc_retain(
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; CHECK: for.body:
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; CHECK-NOT: @objc
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; CHECK: for.end:
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; CHECK: call void @objc_release(
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; CHECK: }
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define void @test0(i8* %digits) {
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entry:
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%tmp1 = call i8* @objc_retain(i8* %digits) nounwind
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call void @use_pointer(i8* %tmp1)
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%upcDigitIndex.01 = phi i64 [ 2, %entry ], [ %inc, %for.body ]
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call void @use_pointer(i8* %tmp1)
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%inc = add i64 %upcDigitIndex.01, 1
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%cmp = icmp ult i64 %inc, 12
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %for.body
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call void @objc_release(i8* %tmp1) nounwind, !clang.imprecise_release !0
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ret void
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}
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; CHECK: define void @test1(
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; CHECK: call i8* @objc_retain(
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; CHECK: for.body:
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; CHECK-NOT: @objc
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; CHECK: for.end:
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; CHECK: void @objc_release(
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; CHECK: }
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define void @test1(i8* %digits) {
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entry:
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%tmp1 = call i8* @objc_retain(i8* %digits) nounwind
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%upcDigitIndex.01 = phi i64 [ 2, %entry ], [ %inc, %for.body ]
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call void @use_pointer(i8* %tmp1)
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call void @use_pointer(i8* %tmp1)
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%inc = add i64 %upcDigitIndex.01, 1
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%cmp = icmp ult i64 %inc, 12
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %for.body
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call void @objc_release(i8* %tmp1) nounwind, !clang.imprecise_release !0
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ret void
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}
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; CHECK: define void @test2(
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; CHECK: call i8* @objc_retain(
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; CHECK: for.body:
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; CHECK-NOT: @objc
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; CHECK: for.end:
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; CHECK: void @objc_release(
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; CHECK: }
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define void @test2(i8* %digits) {
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entry:
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%tmp1 = call i8* @objc_retain(i8* %digits) nounwind
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%upcDigitIndex.01 = phi i64 [ 2, %entry ], [ %inc, %for.body ]
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call void @use_pointer(i8* %tmp1)
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%inc = add i64 %upcDigitIndex.01, 1
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%cmp = icmp ult i64 %inc, 12
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %for.body
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call void @use_pointer(i8* %tmp1)
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call void @objc_release(i8* %tmp1) nounwind, !clang.imprecise_release !0
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ret void
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}
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!0 = metadata !{}
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