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llvm-project/clang/test/Driver/fno-escaping-block-tail-cal...

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Add an option to disable tail-call optimization for escaping blocks. This makes it easier to debug crashes and hangs in block functions since users can easily find out where the block is called from. The option doesn't disable tail-calls from non-escaping blocks since non-escaping blocks are not as hard to debug as escaping blocks. rdar://problem/35758207 Differential Revision: https://reviews.llvm.org/D43841 llvm-svn: 326530
2018-03-02 09:53:15 +08:00
// RUN: %clang -### %s -fescaping-block-tail-calls -fno-escaping-block-tail-calls 2> %t
// RUN: FileCheck --check-prefix=CHECK-DISABLE < %t %s
// CHECK-DISABLE: "-fno-escaping-block-tail-calls"
// RUN: %clang -### %s -fno-escaping-block-tail-calls -fescaping-block-tail-calls 2> %t
// RUN: FileCheck --check-prefix=CHECK-NO-DISABLE < %t %s
[Driver] Pass Default=false to hasFlag. I forgot to do this in r326530. llvm-svn: 327204
2018-03-10 13:55:21 +08:00
// RUN: %clang -### %s 2> %t
// RUN: FileCheck --check-prefix=CHECK-NO-DISABLE < %t %s
Add an option to disable tail-call optimization for escaping blocks. This makes it easier to debug crashes and hangs in block functions since users can easily find out where the block is called from. The option doesn't disable tail-calls from non-escaping blocks since non-escaping blocks are not as hard to debug as escaping blocks. rdar://problem/35758207 Differential Revision: https://reviews.llvm.org/D43841 llvm-svn: 326530
2018-03-02 09:53:15 +08:00
// CHECK-NO-DISABLE-NOT: "-fno-escaping-block-tail-calls"