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fe32b980b3
When building LLVM as a (potentially dynamic) library that can be linked against by multiple compilers, the default triple is not really meaningful. We allow to explicitely set it to an empty string when configuring LLVM. In this case, said "target independent" tests in the test suite that are using the default triple are disabled by matching the newly available feature "default_triple". Reviewers: probinson, echristo Differential Revision: http://reviews.llvm.org/D12660 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 247775
55 lines
1.2 KiB
LLVM
55 lines
1.2 KiB
LLVM
; RUN: llc < %s
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; REQUIRES: default_triple
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declare i8* @llvm_gc_allocate(i32)
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declare void @llvm_gc_initialize(i32)
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declare void @llvm.gcroot(i8**, i8*)
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declare void @llvm.gcwrite(i8*, i8*, i8**)
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define i32 @main() gc "shadow-stack" {
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entry:
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%A = alloca i8*
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%B = alloca i8**
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call void @llvm_gc_initialize(i32 1048576) ; Start with 1MB heap
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;; void *A;
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call void @llvm.gcroot(i8** %A, i8* null)
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;; A = gcalloc(10);
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%Aptr = call i8* @llvm_gc_allocate(i32 10)
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store i8* %Aptr, i8** %A
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;; void **B;
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%tmp.1 = bitcast i8*** %B to i8**
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call void @llvm.gcroot(i8** %tmp.1, i8* null)
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;; B = gcalloc(4);
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%B.upgrd.1 = call i8* @llvm_gc_allocate(i32 8)
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%tmp.2 = bitcast i8* %B.upgrd.1 to i8**
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store i8** %tmp.2, i8*** %B
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;; *B = A;
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%B.1 = load i8**, i8*** %B
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%A.1 = load i8*, i8** %A
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call void @llvm.gcwrite(i8* %A.1, i8* %B.upgrd.1, i8** %B.1)
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br label %AllocLoop
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AllocLoop:
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%i = phi i32 [ 0, %entry ], [ %indvar.next, %AllocLoop ]
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;; Allocated mem: allocated memory is immediately dead.
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call i8* @llvm_gc_allocate(i32 100)
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%indvar.next = add i32 %i, 1
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%exitcond = icmp eq i32 %indvar.next, 10000000
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br i1 %exitcond, label %Exit, label %AllocLoop
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Exit:
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ret i32 0
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}
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declare void @__main()
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