diff options
Diffstat (limited to 'test/CodeGen/X86/cppeh-nounwind.ll')
| -rw-r--r-- | test/CodeGen/X86/cppeh-nounwind.ll | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/CodeGen/X86/cppeh-nounwind.ll b/test/CodeGen/X86/cppeh-nounwind.ll new file mode 100644 index 0000000..d9bc001 --- /dev/null +++ b/test/CodeGen/X86/cppeh-nounwind.ll @@ -0,0 +1,35 @@ +; RUN: llc -mtriple=i686-pc-windows-msvc < %s | FileCheck %s + +; Sometimes invokes of nounwind functions make it through to CodeGen, especially +; at -O0, where Clang sometimes optimistically annotates functions as nounwind. +; WinEHPrepare ends up outlining functions, and emitting references to LSDA +; labels. Make sure we emit the LSDA in that case. + +declare i32 @__CxxFrameHandler3(...) +declare void @nounwind_func() nounwind +declare void @cleanup() + +define void @should_emit_tables() personality i32 (...)* @__CxxFrameHandler3 { +entry: + invoke void @nounwind_func() + to label %done unwind label %lpad + +done: + ret void + +lpad: + %vals = landingpad { i8*, i32 } + cleanup + call void @cleanup() + resume { i8*, i32 } %vals +} + +; CHECK: _should_emit_tables: +; CHECK: calll _nounwind_func +; CHECK: retl + +; CHECK: L__ehtable$should_emit_tables: + +; CHECK: ___ehhandler$should_emit_tables: +; CHECK: movl $L__ehtable$should_emit_tables, %eax +; CHECK: jmp ___CxxFrameHandler3 # TAILCALL |
