Refactor GCOV's six constructor arguments into a struct with a getter that

constructs default arguments. It can now take default arguments from
cl::opt'ions. Add a new -default-gcov-version=... option, and actually test it!

Sink the reverse-order of the version into GCOVProfiling, hiding it from our
users.

llvm-svn: 177002

2 files changed, 28 insertions, 0 deletions

diff --git a/llvm/test/Transforms/GCOVProfiling/lit.local.cfg b/llvm/test/Transforms/GCOVProfiling/lit.local.cfg
new file mode 100644
index 00000000000..19eebc0ac7a
--- /dev/null
+++ b/llvm/test/Transforms/GCOVProfiling/lit.local.cfg
@@ -0,0 +1 @@
+config.suffixes = ['.ll', '.c', '.cpp']
diff --git a/llvm/test/Transforms/GCOVProfiling/version.ll b/llvm/test/Transforms/GCOVProfiling/version.ll
new file mode 100644
index 00000000000..bd7f43b5a17
--- /dev/null
+++ b/llvm/test/Transforms/GCOVProfiling/version.ll
@@ -0,0 +1,27 @@
+; RUN: echo '!9 = metadata !{metadata !"%s", metadata !0}' > %t1
+; RUN: cat %s %t1 > %t2
+; RUN: opt -insert-gcov-profiling -disable-output < %t2
+; RUN: head -c12 version.gcno | grep '^oncg\*204MVLL$'
+; RUN: rm version.gcno
+; RUN: not opt -insert-gcov-profiling -default-gcov-version=asdfasdf -disable-output < %t2
+; RUN: opt -insert-gcov-profiling -default-gcov-version=407* -disable-output < %t2
+; RUN: head -c12 version.gcno | grep '^oncg\*704MVLL$'
+; RUN: rm version.gcno
+
+define void @test() {
+  ret void, !dbg !8
+}
+
+!llvm.gcov = !{!9}
+!llvm.dbg.cu = !{!0}
+
+!0 = metadata !{metadata !"%s/version", metadata !1}
+!1 = metadata !{i32 786449, i32 0, i32 4, metadata !2, metadata !"clang version 3.3 (trunk 176994)", i1 false, metadata !"", i32 0, metadata !3, metadata !3, metadata !4, metadata !3, metadata !""} ; [ DW_TAG_compile_unit ] [./version] [DW_LANG_C_plus_plus]
+!2 = metadata !{i32 786473, metadata !"version", metadata !"/usr/local/google/home/nlewycky"} ; [ DW_TAG_file_type ]
+!3 = metadata !{i32 0}
+!4 = metadata !{metadata !5}
+!5 = metadata !{i32 786478, i32 0, metadata !6, metadata !"test", metadata !"test", metadata !"", metadata !6, i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @test, null, null, metadata !3, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [test]
+!6 = metadata !{i32 786473, metadata !"<stdin>", metadata !"."} ; [ 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 !3, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!8= metadata !{i32 1, i32 0, metadata !5, null}
+;; !9 is added through the echo line at the top.