Add testcase to make sure we don't generate a compact unwind section for ELF binaries.

This tests r190354.

llvm-svn: 192903

llvm/test/CodeGen/X86/no-elf-compact-unwind.ll

@@ -0,0 +1,48 @@
+; RUN: llc < %s -mtriple x86_64-apple-macosx10.8.0 -disable-cfi | FileCheck -check-prefix=MACHO %s
+; RUN: llc < %s -mtriple x86_64-unknown-linux -disable-cfi | FileCheck -check-prefix=ELF %s
+
+; Make sure we don't generate a compact unwind for ELF.
+
+; MACHO-LABEL: _Z3barv:
+; MACHO:       __compact_unwind
+
+; ELF-LABEL:   _Z3barv:
+; ELF-NOT:     __compact_unwind
+
+@_ZTIi = external constant i8*
+
+define void @_Z3barv() uwtable {
+entry:
+  invoke void @_Z3foov()
+          to label %try.cont unwind label %lpad
+
+lpad:                                             ; preds = %entry
+  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          catch i8* bitcast (i8** @_ZTIi to i8*)
+  %1 = extractvalue { i8*, i32 } %0, 1
+  %2 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
+  %matches = icmp eq i32 %1, %2
+  br i1 %matches, label %catch, label %eh.resume
+
+catch:                                            ; preds = %lpad
+  %3 = extractvalue { i8*, i32 } %0, 0
+  %4 = tail call i8* @__cxa_begin_catch(i8* %3)
+  tail call void @__cxa_end_catch()
+  br label %try.cont
+
+try.cont:                                         ; preds = %entry, %catch
+  ret void
+
+eh.resume:                                        ; preds = %lpad
+  resume { i8*, i32 } %0
+}
+
+declare void @_Z3foov()
+
+declare i32 @__gxx_personality_v0(...)
+
+declare i32 @llvm.eh.typeid.for(i8*)
+
+declare i8* @__cxa_begin_catch(i8*)
+
+declare void @__cxa_end_catch()