r176901 - Eliminate backend dependency in CFE testcase.

[Will Schmidt]

On Wed, 2013-03-13 at 09:50 -0700, Adrian Prantl wrote:
> It’s green again:
> 
> http://lab.llvm.org:8011/builders/clang-ppc64-elf-linux2/builds/3278

Excellent! Thank you! :-)

-Will

> 
> thanks,
> Adrian
> 
> On Mar 13, 2013, at 9:08 AM, Will Schmidt <will_schmidt at vnet.ibm.com> wrote:
> 
> > On Tue, 2013-03-12 at 21:40 +0000, Adrian Prantl wrote:
> >> Author: adrian
> >> Date: Tue Mar 12 16:40:00 2013
> >> New Revision: 176901
> >> 
> >> URL: http://llvm.org/viewvc/llvm-project?rev=176901&view=rev
> >> Log:
> >> Eliminate backend dependency in CFE testcase.
> >> 
> >> Modified:
> >>    cfe/trunk/test/CodeGenCXX/debug-info-same-line.cpp
> > 
> > Hi Adrian, 
> > 
> > This change looks to have introduced a failure on the clang buildbot for
> > elf-ppc64.   (This change went in as the same time a previous break was
> > reverted, so the build went from broken to broken for different reason,
> > and thus may not have triggered the expected warnings... )
> > 
> > http://lab.llvm.org:8011/builders/clang-ppc64-elf-linux2/builds/3259/steps/check-all
> > 
> > relevant output seems to be:
> > --
> > /home/clangbuild2/clang-ppc64-2/llvm.src/tools/clang/test/CodeGenCXX/debug-info-same-line.cpp:58:11: error: expected string not found in input
> > // CHECK: define i32 @_Z3fooii(i32 %i, i32 %j)
> >          ^
> > <stdin>:1:1: note: scanning from here
> > ; ModuleID = '/home/clangbuild2/clang-ppc64-2/llvm.src/tools/clang/test/CodeGenCXX/debug-info-same-line.cpp'
> > ^
> > <stdin>:46:8: note: possible intended match here
> > define signext i32 @_Z3fooii(i32 signext %i, i32 signext %j) #0 {
> >       ^
> > --
> > 
> > 
> > Thanks, 
> > -Will
> > 
> > 
> >> 
> >> Modified: cfe/trunk/test/CodeGenCXX/debug-info-same-line.cpp
> >> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-same-line.cpp?rev=176901&r1=176900&r2=176901&view=diff
> >> ==============================================================================
> >> --- cfe/trunk/test/CodeGenCXX/debug-info-same-line.cpp (original)
> >> +++ cfe/trunk/test/CodeGenCXX/debug-info-same-line.cpp Tue Mar 12 16:40:00 2013
> >> @@ -1,8 +1,8 @@
> >> -// RUN: %clang_cc1 -g -emit-obj -o %t %s
> >> -// RUN: llvm-dwarfdump %t | FileCheck %s
> >> -// In the attached test case a post-r166236 clang coalesces two
> >> -// instances of an inlined function in a way that makes it appear as
> >> -// if the function was only inlined once.
> >> +// RUN: %clang_cc1 -g -emit-llvm -o - %s | FileCheck %s
> >> +
> >> +// Make sure that clang outputs distinct debug info for a function
> >> +// that is inlined twice on the same line. Otherwise it would appear
> >> +// as if the function was only inlined once.
> >> 
> >> #define INLINE inline __attribute__((always_inline))
> >> 
> >> @@ -55,12 +55,27 @@ main(int argc, char const *argv[])
> >>     return 0;
> >> }
> >> 
> >> -// CHECK: DW_TAG_inlined_subroutine
> >> -// CHECK: DW_TAG_inlined_subroutine
> >> -// CHECK: DW_TAG_inlined_subroutine
> >> -// CHECK: DW_TAG_inlined_subroutine
> >> -// CHECK-NOT: DW_TAG_inlined_subroutine
> >> -// CHECK: DW_AT_call_line {{.*}} (0x2a)
> >> -// CHECK: DW_TAG_inlined_subroutine
> >> -// CHECK-NOT: DW_TAG_inlined_subroutine
> >> -// CHECK: DW_AT_call_line {{.*}} (0x2a)
> >> +// CHECK: define i32 @_Z3fooii(i32 %i, i32 %j)
> >> +// i
> >> +// CHECK: call void @llvm.dbg.declare
> >> +// j
> >> +// CHECK: call void @llvm.dbg.declare
> >> +// x
> >> +// CHECK: call void @llvm.dbg.declare
> >> +// y
> >> +// CHECK: call void @llvm.dbg.declare
> >> +// result
> >> +// CHECK: call void @llvm.dbg.declare
> >> +
> >> +// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[A_MD:[0-9]+]]), !dbg ![[A_DI:[0-9]+]]
> >> +// CHECK: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[B_MD:[0-9]+]]), !dbg ![[B_DI:[0-9]+]]
> >> +// result
> >> +// CHECK: call void @llvm.dbg.declare
> >> +
> >> +// We want to see a distinct !dbg node.
> >> +// CHECK-NOT: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[A_MD]]), !dbg ![[A_DI]]
> >> +// CHECK:     call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[A_MD]]), !dbg !{{.*}}
> >> +// CHECK-NOT: call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[B_MD]]), !dbg ![[B_DI]]
> >> +// CHECK:     call void @llvm.dbg.declare(metadata !{i32* %{{.*}}}, metadata ![[B_MD]]), !dbg !{{.*}}
> >> +// result
> >> +// CHECK: call void @llvm.dbg.declare
> >> 
> >> 
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