ARMEB: Fix byte order of EH frame unwinding instructions, with modified test file

This commit was already commited as revision rL208689 and discussd in
phabricator revision D3704.
But the test file was crashing on OS X and windows.

I fixed the test file in the same way as in rL208340.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208711 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 73 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/big-endian-eh-unwind.ll b/test/CodeGen/ARM/big-endian-eh-unwind.ll
new file mode 100644
index 00000000000..630dfed4467
--- /dev/null
+++ b/test/CodeGen/ARM/big-endian-eh-unwind.ll
@@ -0,0 +1,73 @@
+; RUN: llc < %s -mtriple armeb-eabi -mattr v7 -filetype obj -o - | llvm-objdump -s - | FileCheck %s
+
+; ARM EHABI for big endian
+; This test case checks whether frame unwinding instructions are laid out in big endian format.
+; 
+; This is the LLVM assembly generated from following C++ code:
+;
+; extern void foo(int);
+; void test(int a, int b) {
+;   try {
+;   foo(a);
+; } catch (...) {
+;   foo(b);
+; }
+;}
+
+define void @_Z4testii(i32 %a, i32 %b) #0 {
+entry:
+  invoke void @_Z3fooi(i32 %a)
+          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* null
+  %1 = extractvalue { i8*, i32 } %0, 0
+  %2 = tail call i8* @__cxa_begin_catch(i8* %1) #2
+  invoke void @_Z3fooi(i32 %b)
+          to label %invoke.cont2 unwind label %lpad1
+
+invoke.cont2:                                     ; preds = %lpad
+  tail call void @__cxa_end_catch()
+  br label %try.cont
+
+try.cont:                                         ; preds = %entry, %invoke.cont2
+  ret void
+
+lpad1:                                            ; preds = %lpad
+  %3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          cleanup
+  invoke void @__cxa_end_catch()
+          to label %eh.resume unwind label %terminate.lpad
+
+eh.resume:                                        ; preds = %lpad1
+  resume { i8*, i32 } %3
+
+terminate.lpad:                                   ; preds = %lpad1
+  %4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          catch i8* null
+  %5 = extractvalue { i8*, i32 } %4, 0
+  tail call void @__clang_call_terminate(i8* %5) #3
+  unreachable
+}
+
+declare void @_Z3fooi(i32) #0
+
+declare i32 @__gxx_personality_v0(...)
+
+declare i8* @__cxa_begin_catch(i8*)
+
+declare void @__cxa_end_catch()
+
+; Function Attrs: noinline noreturn nounwind
+define linkonce_odr hidden void @__clang_call_terminate(i8*) #1 {
+  %2 = tail call i8* @__cxa_begin_catch(i8* %0) #2
+  tail call void @_ZSt9terminatev() #3
+  unreachable
+}
+
+declare void @_ZSt9terminatev()
+
+; CHECK-LABEL: Contents of section .ARM.extab:
+; CHECK-NEXT: 0000 00000000 00a8b0b0
+