52 lines
1.5 KiB
LLVM
52 lines
1.5 KiB
LLVM
; REQUIRES: system-darwin && host-unwind-supports-jit
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; RUN: lli -jit-kind=orc %s
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;
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; Check that we can throw exceptions from no-fp functions. On systems that
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; support compact-unwind this implicitly tests that we correctly handle
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; unwind-info records that depend on DWARF FDEs.
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@_ZTIi = external constant ptr
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declare ptr @__cxa_allocate_exception(i64)
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declare void @__cxa_throw(ptr, ptr, ptr)
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declare ptr @__cxa_begin_catch(ptr)
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declare void @__cxa_end_catch()
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declare i32 @__gxx_personality_v0(...)
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declare i32 @llvm.eh.typeid.for.p0(ptr)
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define void @_Z3foov() "frame-pointer"="none" {
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entry:
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%exception = tail call ptr @__cxa_allocate_exception(i64 4)
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store i32 42, ptr %exception
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tail call void @__cxa_throw(ptr %exception, ptr nonnull @_ZTIi, ptr null)
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unreachable
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}
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define i32 @main(i32 %argc, ptr %argv) "frame-pointer"="all" personality ptr @__gxx_personality_v0 {
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entry:
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invoke void @_Z3foov()
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to label %return.unreachable unwind label %lpad
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lpad:
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%0 = landingpad { ptr, i32 }
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catch ptr @_ZTIi
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%1 = extractvalue { ptr, i32 } %0, 1
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%2 = tail call i32 @llvm.eh.typeid.for.p0(ptr nonnull @_ZTIi)
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%matches = icmp eq i32 %1, %2
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br i1 %matches, label %catch, label %eh.resume
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catch:
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%3 = extractvalue { ptr, i32 } %0, 0
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%4 = tail call ptr @__cxa_begin_catch(ptr %3)
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%5 = load i32, ptr %4
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%sub = sub nsw i32 42, %5
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tail call void @__cxa_end_catch()
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ret i32 %sub
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return.unreachable:
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unreachable
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eh.resume:
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resume { ptr, i32 } %0
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}
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