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author | Anders Waldenborg <anders@0x63.nu> | 2013-10-17 10:25:24 +0000 |
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committer | Anders Waldenborg <anders@0x63.nu> | 2013-10-17 10:25:24 +0000 |
commit | 2fee43f9b210859f46fdb279baabb96a61a774af (patch) | |
tree | 3447b808cafd24998e91fd85fc1e1ea21091f405 /lib/Target/TargetMachineC.cpp | |
parent | 4ef1999d61f955917f86320f3b1c6e3352fd0b49 (diff) | |
download | external_llvm-2fee43f9b210859f46fdb279baabb96a61a774af.zip external_llvm-2fee43f9b210859f46fdb279baabb96a61a774af.tar.gz external_llvm-2fee43f9b210859f46fdb279baabb96a61a774af.tar.bz2 |
llvm-c: Return NULL from LLVMGetFirstTarget instead of asserting
If no targets are registered, LLVMGetFirstTarget currently fails with
an assertion. This patch makes it return NULL instead, similarly to
how LLVMGetNextTarget would.
Patch by Peter Zotov
Differential Revision: http://llvm-reviews.chandlerc.com/D1908
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192878 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/TargetMachineC.cpp')
-rw-r--r-- | lib/Target/TargetMachineC.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/Target/TargetMachineC.cpp b/lib/Target/TargetMachineC.cpp index 7419122..9fccfcd 100644 --- a/lib/Target/TargetMachineC.cpp +++ b/lib/Target/TargetMachineC.cpp @@ -60,8 +60,12 @@ inline LLVMTargetRef wrap(const Target * P) { } LLVMTargetRef LLVMGetFirstTarget() { - const Target* target = &*TargetRegistry::begin(); - return wrap(target); + if(TargetRegistry::begin() == TargetRegistry::end()) { + return NULL; + } + + const Target* target = &*TargetRegistry::begin(); + return wrap(target); } LLVMTargetRef LLVMGetNextTarget(LLVMTargetRef T) { return wrap(unwrap(T)->getNext()); |