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llvm-cov: add code coverage tool that's based on coverage mapping format and clang's pgo.

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This commit expands llvm-cov's functionality by adding support for a new code coverage
tool that uses LLVM's coverage mapping format and clang's instrumentation based profiling.
The gcov compatible tool can be invoked by supplying the 'gcov' command as the first argument,
or by modifying the tool's name to end with 'gcov'.

Differential Revision: http://reviews.llvm.org/D4445


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216300 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alex Lorenz
2014-08-22 22:56:03 +00:00
parent 8be5600f0a
commit 6c7a6a1ba2
32 changed files with 2737 additions and 34 deletions
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22
test/tools/llvm-cov/showLineExecutionCounts.cpp Normal file
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// RUN: llvm-cov show %S/Inputs/lineExecutionCounts.covmapping -instr-profile %S/Inputs/lineExecutionCounts.profdata -no-colors -filename-equivalence %s | FileCheck %s
int main() { // CHECK: 1| [[@LINE]]|int main(
int x = 0; // CHECK: 1| [[@LINE]]| int x
// CHECK: 1| [[@LINE]]|
if (x) { // CHECK: 0| [[@LINE]]| if (x)
x = 0; // CHECK: 0| [[@LINE]]| x = 0
} else { // CHECK: 1| [[@LINE]]| } else
x = 1; // CHECK: 1| [[@LINE]]| x = 1
} // CHECK: 1| [[@LINE]]| }
// CHECK: 1| [[@LINE]]|
for (int i = 0; i < 100; ++i) { // CHECK: 100| [[@LINE]]| for (
x = 1; // CHECK: 100| [[@LINE]]| x = 1
} // CHECK: 100| [[@LINE]]| }
// CHECK: 1| [[@LINE]]|
x = x < 10 ? x + 1 : x - 1; // CHECK: 0| [[@LINE]]| x =
x = x > 10 ? // CHECK: 1| [[@LINE]]| x =
x - 1: // CHECK: 0| [[@LINE]]| x
x + 1; // CHECK: 1| [[@LINE]]| x
// CHECK: 1| [[@LINE]]|
return 0; // CHECK: 1| [[@LINE]]| return
} // CHECK: 1| [[@LINE]]|}