https://bugs.llvm.org/show_bug.cgi?id=42783
Bug ID: 42783
Summary: Add a way to avoid calls to noreturn functions from
being merged
Product: clang
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: C
Assignee: unassignedclangb...@nondot.org
Reporter: jmuizel...@mozilla.com
CC: blitzrak...@gmail.com, dgre...@apple.com,
erik.pilking...@gmail.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
Given the following code it would be nice if there was a way to ensure that
each of the callsites to crash() remained unique so that it's possible to
distinguish which callsite is triggering a particular crash().
void crash() __attribute__((noreturn));
void f(int i) {
if (i == 5) {
crash();
}
else if (i == 7) {
crash();
}
crash();
}
Today this just gets compiled to:
f(int): # @f(int)
pushq %rax
callq crash()
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