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llvm-cov: Implement the object-directory flag 

llvm-svn: 200741
This commit is contained in:
Justin Bogner 2014-02-04 06:41:43 +00:00
parent 93d1edbb7d
commit f69557e670
4 changed files with 107 additions and 2 deletions
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79
llvm/test/tools/llvm-cov/Inputs/test_objdir.cpp.gcov Normal file
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@ -0,0 +1,79 @@
-: 0:Source:test.cpp
-: 0:Graph:objdir/test.gcno
-: 0:Data:objdir/test.gcda
-: 0:Runs:2
-: 0:Programs:1
-: 1:#include "test.h"
-: 2:#include <cstdlib>
-: 3:
-: 4:bool on = false;
-: 5:int len = 42;
-: 6:double grid[10][10] = {0};
-: 7:const char * hello = "world";
-: 8:const char * world = "hello";
-: 9:
8589934592: 10:void A::B() {}
-: 11:
#####: 12:void useless() {}
-: 13:
-: 14:double more_useless() {
#####: 15: return 0;
-: 16:}
-: 17:
-: 18:int foo() {
2: 19: on = true;
2: 20: return 3;
-: 21:}
-: 22:
-: 23:int bar() {
#####: 24: len--;
#####: 25: return foo() + 45;
-: 26:}
-: 27:
8: 28:void assign(int ii, int jj) {
8: 29: grid[ii][jj] = (ii+1) * (jj+1);
8: 30:}
-: 31:
-: 32:void initialize_grid() {
12: 33: for (int ii = 0; ii < 2; ii++)
24: 34: for (int jj = 0; jj < 2; jj++)
12: 35: assign(ii, jj);
2: 36:}
-: 37:
-: 38:int main() {
2: 39: initialize_grid();
-: 40:
2: 41: int a = 2;
2: 42: on = rand() % 2;
2: 43: if (on) {
2: 44: foo();
2: 45: ++a;
2: 46: } else {
#####: 47: bar();
#####: 48: a += rand();
-: 49: }
-: 50:
44: 51: for (int ii = 0; ii < 10; ++ii) {
20: 52: switch (rand() % 5) {
-: 53: case 0:
4: 54: a += rand();
4: 55: break;
-: 56: case 1:
-: 57: case 2:
2: 58: a += rand() / rand();
2: 59: break;
-: 60: case 3:
6: 61: a -= rand();
6: 62: break;
-: 63: default:
8: 64: a = -1;
8: 65: }
20: 66: }
-: 67:
2: 68: A thing;
17179869188: 69: for (uint64_t ii = 0; ii < 4294967296; ++ii)
8589934592: 70: thing.B();
-: 71:
2: 72: return a + 8 + grid[2][3] + len;
-: 73: return more_useless();
-: 74:}

8
llvm/test/tools/llvm-cov/Inputs/test_objdir.h.gcov Normal file
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@ -0,0 +1,8 @@
-: 0:Source:./test.h
-: 0:Graph:objdir/test.gcno
-: 0:Data:objdir/test.gcda
-: 0:Runs:2
-: 0:Programs:1
4: 1:struct A {
-: 2: virtual void B();
-: 3:};

7
llvm/test/tools/llvm-cov/llvm-cov.test
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@ -14,6 +14,13 @@ RUN: llvm-cov test.c | diff -u test_no_options.output -
RUN: diff -aub test_no_options.cpp.gcov test.cpp.gcov
RUN: diff -aub test_no_options.h.gcov test.h.gcov
# Same, but specifying the object directory
RUN: mkdir -p %t/objdir
RUN: cp test.gcno test.gcda %t/objdir
RUN: llvm-cov -o objdir test.c | diff -u test_no_options.output -
RUN: diff -aub test_objdir.cpp.gcov test.cpp.gcov
RUN: diff -aub test_objdir.h.gcov test.h.gcov
# Function summaries. This changes stdout, but not the gcov files.
RUN: llvm-cov test.c -f | diff -u test_-f.output -
RUN: diff -aub test_no_options.cpp.gcov test.cpp.gcov

15
llvm/tools/llvm-cov/llvm-cov.cpp
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@ -12,10 +12,12 @@
//===----------------------------------------------------------------------===//
#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/GCOV.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryObject.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/system_error.h"
@ -41,6 +43,10 @@ static cl::opt<bool> FuncSummary("f", cl::init(false),
cl::desc("Show coverage for each function"));
static cl::alias FuncSummaryA("function-summaries", cl::aliasopt(FuncSummary));
static cl::opt<std::string> ObjectDir("o", cl::value_desc("DIR"), cl::init(""),
cl::desc("Search for objects in DIR"));
static cl::alias ObjectDirA("object-directory", cl::aliasopt(ObjectDir));
static cl::opt<bool> UncondBranch("u", cl::init(false),
cl::desc("Display unconditional branch info "
"(requires -b)"));
@ -64,10 +70,15 @@ int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv, "LLVM code coverage tool\n");
SmallString<128> CoverageFileStem(ObjectDir);
if (CoverageFileStem.empty())
CoverageFileStem = sys::path::parent_path(SourceFile);
sys::path::append(CoverageFileStem, sys::path::stem(SourceFile));
if (InputGCNO.empty())
InputGCNO = SourceFile.substr(0, SourceFile.rfind(".")) + ".gcno";
InputGCNO = (CoverageFileStem.str() + ".gcno").str();
if (InputGCDA.empty())
InputGCDA = SourceFile.substr(0, SourceFile.rfind(".")) + ".gcda";
InputGCDA = (CoverageFileStem.str() + ".gcda").str();
GCOVFile GF;