[llvm-cov] Generate "report" for given source paths if sources are specified.

Summary:
Documentation says that user can specify sources for both "show" and
"report" commands. "Show" command respects specified sources, but "report" does
not. It is useful to have both "show" and "report" generated for specified
sources. Also added tests to for both commands with sources specified.

Reviewers: vsk, kcc

Reviewed By: vsk

Differential Revision: https://reviews.llvm.org/D38860

llvm-svn: 315685

7 files changed, 48 insertions, 0 deletions

diff --git a/llvm/test/tools/llvm-cov/Inputs/sources_specified/abs.h b/llvm/test/tools/llvm-cov/Inputs/sources_specified/abs.h
new file mode 100644
index 00000000000..f13c5177c58
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/sources_specified/abs.h
@@ -0,0 +1,5 @@
+int abs(int x) {
+  if (x < 0)
+    return -x;
+  return x;
+}
diff --git a/llvm/test/tools/llvm-cov/Inputs/sources_specified/extra/dec.h b/llvm/test/tools/llvm-cov/Inputs/sources_specified/extra/dec.h
new file mode 100644
index 00000000000..178e1ea8c26
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/sources_specified/extra/dec.h
@@ -0,0 +1,3 @@
+int dec(int x) {
+  return x + 1;
+}
diff --git a/llvm/test/tools/llvm-cov/Inputs/sources_specified/extra/inc.h b/llvm/test/tools/llvm-cov/Inputs/sources_specified/extra/inc.h
new file mode 100644
index 00000000000..5086aaa1e38
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/sources_specified/extra/inc.h
@@ -0,0 +1,3 @@
+int inc(int x) {
+  return x + 1;
+}
diff --git a/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.cc b/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.cc
new file mode 100644
index 00000000000..cda21f1f57a
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.cc
@@ -0,0 +1,9 @@
+#include "abs.h"
+#include "extra/dec.h"
+#include "extra/inc.h"
+
+int main() {
+  int x = 0;
+  inc(x);
+  return abs(x);
+}
diff --git a/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.covmapping b/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.covmapping
new file mode 100644
index 00000000000..95f22f53b4d
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.covmapping
diff --git a/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.profdata b/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.profdata
new file mode 100644
index 00000000000..aeee1ab7f7d
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/Inputs/sources_specified/main.profdata
diff --git a/llvm/test/tools/llvm-cov/sources-specified.test b/llvm/test/tools/llvm-cov/sources-specified.test
new file mode 100644
index 00000000000..cd19adf52fe
--- /dev/null
+++ b/llvm/test/tools/llvm-cov/sources-specified.test
@@ -0,0 +1,28 @@
+RUN: llvm-cov report -instr-profile %S/Inputs/sources_specified/main.profdata \
+RUN:   %S/Inputs/sources_specified/main.covmapping \
+RUN:   %S/Inputs/sources_specified/main.cc %S/Inputs/sources_specified/extra \
+RUN:   | FileCheck -check-prefix=REPORT %s
+
+RUN: llvm-cov show -instr-profile %S/Inputs/sources_specified/main.profdata \
+RUN:   %S/Inputs/sources_specified/main.covmapping \
+RUN:   %S/Inputs/sources_specified/main.cc %S/Inputs/sources_specified/extra \
+RUN:   | FileCheck -check-prefix=SHOW %s
+
+
+REPORT: {{^}}main.cc{{.*}}
+REPORT: {{^}}extra{{[/\\]}}{{dec|inc}}.h{{.*}}
+REPORT: {{^}}extra{{[/\\]}}{{dec|inc}}.h{{.*}}
+REPORT-NOT: {{^}}abs.h{{.*}}
+
+SHOW: {{.*}}main.cc{{.*}}
+SHOW: {{.*}}extra{{[/\\]}}{{dec|inc}}.h{{.*}}
+SHOW: {{.*}}extra{{[/\\]}}{{dec|inc}}.h{{.*}}
+SHOW-NOT: {{.*}}abs.h{{.*}}
+
+Instructions for regenerating the test:
+
+clang -mllvm -enable-name-compression=false -fprofile-instr-generate -fcoverage-mapping main.cc -o main
+
+LLVM_PROFILE_FILE="main.raw" ./main
+llvm-profdata merge main.raw -o main.profdata
+llvm-cov convert-for-testing ./main -o ./main.covmapping