r211992 - test: add a test for windows itanium exceptions

[NAKAMURA Takumi]

This won't pass with -Asserts. Suppressed in r211996.

2014-06-29 8:34 GMT+09:00 Saleem Abdulrasool <compnerd at compnerd.org>:
> Author: compnerd
> Date: Sat Jun 28 18:34:15 2014
> New Revision: 211992
>
> URL: http://llvm.org/viewvc/llvm-project?rev=211992&view=rev
> Log:
> test: add a test for windows itanium exceptions
>
> Some time ago, I noticed that try would get resolved incorrectly for Windows
> Itanium targets.  Add an explicit test to exsure that exceptions are handled
> correctly for Windows Itanium environments.
>
> Added:
>     cfe/trunk/test/CodeGenCXX/windows-itanium-exceptions.cpp
>
> Added: cfe/trunk/test/CodeGenCXX/windows-itanium-exceptions.cpp
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/windows-itanium-exceptions.cpp?rev=211992&view=auto
> ==============================================================================
> --- cfe/trunk/test/CodeGenCXX/windows-itanium-exceptions.cpp (added)
> +++ cfe/trunk/test/CodeGenCXX/windows-itanium-exceptions.cpp Sat Jun 28 18:34:15 2014
> @@ -0,0 +1,46 @@
> +// RUN: %clang_cc1 -emit-llvm -triple thumbv7-windows-itanium -fexceptions -fcxx-exceptions %s -o - | FileCheck %s
> +// RUN: %clang_cc1 -emit-llvm -triple i686-windows-itanium -fexceptions -fcxx-exceptions %s -o - | FileCheck %s
> +
> +void except() {
> +  throw 32;
> +}
> +
> +void attempt() {
> +  try { except(); } catch (...) { }
> +}
> +
> +// CHECK: @_ZTIi = external constant i8*
> +
> +// CHECK: define {{.*}}void @_Z6exceptv() {{.*}} {
> +// CHECK:   %exception = call {{.*}}i8* @__cxa_allocate_exception(i32 4)
> +// CHECK:   %0 = bitcast i8* %exception to i32*
> +// CHECK:   store i32 32, i32* %0
> +// CHECK:   call {{.*}}void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null)
> +// CHECK:   unreachable
> +// CHECK: }
> +
> +// CHECK: define {{.*}}void @_Z7attemptv() {{.*}} {
> +// CHECK:   %exn.slot = alloca i8*
> +// CHECK:   %ehselector.slot = alloca i32
> +// CHECK:   invoke {{.*}}void @_Z6exceptv()
> +// CHECK:     to label %invoke.cont unwind label %lpad
> +// CHECK: invoke.cont:
> +// CHECK:    br label %try.cont
> +// CHECK: lpad:
> +// CHECK:    %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
> +// CHECK:      catch i8* null
> +// CHECK:    %1 = extractvalue { i8*, i32 } %0, 0
> +// CHECK:    store i8* %1, i8** %exn.slot
> +// CHECK:    %2 = extractvalue { i8*, i32 } %0, 1
> +// CHECK:    store i32 %2, i32* %ehselector.slot
> +// CHECK:    br label %catch
> +// CHECK: catch:
> +// CHECK:    %exn = load i8** %exn.slot
> +// CHECK:    %3 = call {{.*}}i8* @__cxa_begin_catch(i8* %{{2|exn}})
> +// CHECK:    call {{.*}}void @__cxa_end_catch()
> +// CHECK:    br label %try.cont
> +// CHECK: try.cont:
> +// CHECK:    ret void
> +// CHECK: }
> +
> +
>
>
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