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Add a comment explaining why llvm_unreachable_internal doesn't call

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the ErrorHandler callback.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79541 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-08-20 17:15:19 +00:00
parent cdd93d8c35
commit 073f5b669d
1 changed files with 3 additions and 0 deletions
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3
lib/Support/ErrorHandling.cpp
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@ -58,6 +58,9 @@ void llvm_report_error(const Twine &reason) {
void llvm_unreachable_internal(const char *msg, const char *file,
unsigned line) {
// This code intentionally doesn't call the ErrorHandler callback, because
// llvm_unreachable is intended to be used to indicate "impossible"
// situations, and not legitimate runtime errors.
if (msg)
errs() << msg << "\n";
errs() << "UNREACHABLE executed";