forked from OSchip/llvm-project
36 lines
989 B
LLVM
36 lines
989 B
LLVM
; RUN: llc -mtriple=i686-pc-windows-msvc < %s | FileCheck %s
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; Sometimes invokes of nounwind functions make it through to CodeGen, especially
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; at -O0, where Clang sometimes optimistically annotates functions as nounwind.
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; WinEHPrepare ends up outlining functions, and emitting references to LSDA
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; labels. Make sure we emit the LSDA in that case.
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declare i32 @__CxxFrameHandler3(...)
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declare void @nounwind_func() nounwind
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declare void @cleanup()
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define void @should_emit_tables() personality i32 (...)* @__CxxFrameHandler3 {
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entry:
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invoke void @nounwind_func()
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to label %done unwind label %lpad
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done:
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ret void
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lpad:
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%vals = landingpad { i8*, i32 }
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cleanup
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call void @cleanup()
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resume { i8*, i32 } %vals
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}
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; CHECK: _should_emit_tables:
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; CHECK: calll _nounwind_func
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; CHECK: retl
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; CHECK: L__ehtable$should_emit_tables:
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; CHECK: ___ehhandler$should_emit_tables:
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; CHECK: movl $L__ehtable$should_emit_tables, %eax
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; CHECK: jmp ___CxxFrameHandler3 # TAILCALL
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