Merge commit 'b3201c5cf1e183d840f7c99ff779d57f1549d8e5' into merge_20130226

Conflicts:
	include/llvm/Support/ELF.h
	lib/Support/DeltaAlgorithm.cpp

Change-Id: I24a4fbce62eb39d924efee3c687b55e1e17b30cd

4 files changed, 25 insertions, 21 deletions

diff --git a/test/Transforms/DeadArgElim/2007-12-20-ParamAttrs.ll b/test/Transforms/DeadArgElim/2007-12-20-ParamAttrs.ll
index 7c6c575..f049265 100644
--- a/test/Transforms/DeadArgElim/2007-12-20-ParamAttrs.ll
+++ b/test/Transforms/DeadArgElim/2007-12-20-ParamAttrs.ll
@@ -1,20 +1,20 @@
-; RUN: opt < %s -deadargelim -S > %t
-; RUN: cat %t | grep nounwind | count 2
-; RUN: cat %t | grep signext | count 2
-; RUN: cat %t | not grep inreg
-; RUN: cat %t | not grep zeroext
-; RUN: cat %t | not grep byval
+; RUN: opt < %s -deadargelim -S | FileCheck %s
 
-	%struct = type { }
+%struct = type { }
 
 @g = global i8 0
 
+; CHECK: define internal void @foo(i8 signext %y) [[NUW:#[0-9]+]]
+
 define internal zeroext i8 @foo(i8* inreg %p, i8 signext %y, ... )  nounwind {
-	store i8 %y, i8* @g
-	ret i8 0
+  store i8 %y, i8* @g
+  ret i8 0
 }
 
 define i32 @bar() {
-	%A = call zeroext i8(i8*, i8, ...)* @foo(i8* inreg null, i8 signext 1, %struct* byval null ) nounwind
-	ret i32 0
+; CHECK: call void @foo(i8 signext 1) [[NUW]]
+  %A = call zeroext i8(i8*, i8, ...)* @foo(i8* inreg null, i8 signext 1, %struct* byval null ) nounwind
+  ret i32 0
 }
+
+; CHECK: attributes [[NUW]] = { nounwind }
diff --git a/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll b/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll
index 2f820ba..f5d2588 100644
--- a/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll
+++ b/test/Transforms/DeadArgElim/2010-04-30-DbgInfo.ll
@@ -8,14 +8,14 @@ entry:
   call void @llvm.dbg.value(metadata !{i32 %len}, i64 0, metadata !10)
   call void @llvm.dbg.value(metadata !{i32 %hash}, i64 0, metadata !11)
   call void @llvm.dbg.value(metadata !{i32 %flags}, i64 0, metadata !12)
-; CHECK:  call fastcc i8* @add_name_internal(i8* %name, i32 %hash) nounwind, !dbg !13
+; CHECK:  call fastcc i8* @add_name_internal(i8* %name, i32 %hash) [[NUW:#[0-9]+]], !dbg !13
   %0 = call fastcc i8* @add_name_internal(i8* %name, i32 %len, i32 %hash, i8 zeroext 0, i32 %flags) nounwind, !dbg !13 ; <i8*> [#uses=1]
   ret i8* %0, !dbg !13
 }
 
 declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 
-define internal fastcc i8* @add_name_internal(i8* %name, i32 %len, i32 %hash, i8 zeroext %extra, i32 %flags) nounwind noinline ssp {
+define internal fastcc i8* @add_name_internal(i8* %name, i32 %len, i32 %hash, i8 zeroext %extra, i32 %flags) noinline nounwind ssp {
 entry:
   call void @llvm.dbg.value(metadata !{i8* %name}, i64 0, metadata !15)
   call void @llvm.dbg.value(metadata !{i32 %len}, i64 0, metadata !20)
@@ -38,6 +38,11 @@ bb2:                                              ; preds = %bb1, %bb
 
 declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
 
+; CHECK: attributes #0 = { nounwind ssp }
+; CHECK: attributes #1 = { nounwind readnone }
+; CHECK: attributes #2 = { noinline nounwind ssp }
+; CHECK: attributes [[NUW]] = { nounwind }
+
 !0 = metadata !{i32 524545, metadata !1, metadata !"name", metadata !2, i32 8, metadata !6} ; [ DW_TAG_arg_variable ]
 !1 = metadata !{i32 524334, i32 0, metadata !2, metadata !"vfs_addname", metadata !"vfs_addname", metadata !"vfs_addname", metadata !2, i32 12, metadata !4, i1 false, i1 true, i32 0, i32 0, null, i1 false} ; [ DW_TAG_subprogram ]
 !2 = metadata !{i32 524329, metadata !"tail.c", metadata !"/Users/echeng/LLVM/radars/r7927803/", metadata !3} ; [ DW_TAG_file_type ]
diff --git a/test/Transforms/DeadArgElim/dbginfo.ll b/test/Transforms/DeadArgElim/dbginfo.ll
index b07b60d..59eb458 100644
--- a/test/Transforms/DeadArgElim/dbginfo.ll
+++ b/test/Transforms/DeadArgElim/dbginfo.ll
@@ -37,13 +37,11 @@ entry:
 !llvm.dbg.cu = !{!0}
 
 !0 = metadata !{i32 786449, i32 0, i32 4, metadata !"test.cc", metadata !"/home/samsonov/tmp/clang-di", metadata !"clang version 3.2 (trunk 165305)", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1} ; [ DW_TAG_compile_unit ] [/home/samsonov/tmp/clang-di/test.cc] [DW_LANG_C_plus_plus]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{metadata !4}
-!4 = metadata !{metadata !5, metadata !8, metadata !9}
+!1 = metadata !{i32 0}
+!3 = metadata !{metadata !5, metadata !8, metadata !9}
 !5 = metadata !{i32 786478, i32 0, metadata !6, metadata !"run", metadata !"run", metadata !"", metadata !6, i32 8, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_Z3runv, null, null, metadata !1, i32 8} ; [ DW_TAG_subprogram ] [line 8] [def] [run]
 !6 = metadata !{i32 786473, metadata !"test.cc", metadata !"/home/samsonov/tmp/clang-di", null} ; [ DW_TAG_file_type ]
-!7 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !2, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!7 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !1, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
 !8 = metadata !{i32 786478, i32 0, metadata !6, metadata !"dead_vararg", metadata !"dead_vararg", metadata !"", metadata !6, i32 5, metadata !7, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (...)* @_ZN12_GLOBAL__N_111dead_varargEz, null, null, metadata !1, i32 5} ; [ DW_TAG_subprogram ] [line 5] [local] [def] [dead_vararg]
 
 ; CHECK: metadata !"dead_vararg"{{.*}}void ()* @_ZN12_GLOBAL__N_111dead_varargEz
diff --git a/test/Transforms/DeadArgElim/keepalive.ll b/test/Transforms/DeadArgElim/keepalive.ll
index dc92dc9..e41110c 100644
--- a/test/Transforms/DeadArgElim/keepalive.ll
+++ b/test/Transforms/DeadArgElim/keepalive.ll
@@ -1,6 +1,4 @@
-; RUN: opt < %s -deadargelim -S > %t
-; RUN: grep "define internal zeroext i32 @test1() nounwind" %t
-; RUN: grep "define internal <{ i32, i32 }> @test2" %t
+; RUN: opt < %s -deadargelim -S | FileCheck %s
 
 %Ty = type <{ i32, i32 }>
 
@@ -9,11 +7,13 @@
 ; the function and then changing too much.
 
 ; This checks if the return value attributes are not removed
+; CHECK: define internal zeroext i32 @test1() #0
 define internal zeroext i32 @test1(i32 %DEADARG1) nounwind {
         ret i32 1
 }
 
 ; This checks if the struct doesn't get non-packed
+; CHECK: define internal <{ i32, i32 }> @test2
 define internal <{ i32, i32 }> @test2(i32 %DEADARG1) {
         ret <{ i32, i32 }> <{ i32 1, i32 2 }>
 }
@@ -28,3 +28,4 @@ define void @caller() {
         ret void
 }
 
+; CHECK: attributes #0 = { nounwind }