enabling sancov tests on linux x86_64 only

[aizatsky]

Summary

Other platforms should have their data files prepared correspondingly. Will test on linux only for now.

[aizatsky]

cleanup

[aizatsky]

nits

[kcc]

LGTM

test/lit.cfg

for pattern in [r"\bbugpoint\b(?!-)",
                 r"\bllvm-rtdyld\b",
                 r"\bllvm-size\b",
                 r"\bllvm-split\b",
                 r"\bllvm-tblgen\b",
                 r"\bllvm-c-test\b",
                 NOJUNK + r"\bopt\b",
                 r"\bFileCheck\b",
                 r"\bobj2yaml\b",
+                NOJUNK + r"\bsancov\b",
                 r"\byaml2obj\b",
                 r"\byaml-bench\b",
                 r"\bverify-uselistorder\b",
                 # Handle these specially as they are strings searched
                 # for during testing.
                 r"\| \bcount\b",
                 r"\| \bnot\b"]:
     tool_name, tool_path, tool_pipe = find_tool_substitution(pattern)

 
 if config.have_zlib == "1":
     config.available_features.add("zlib")
 else:
     config.available_features.add("nozlib")
 
 # LLVM can be configured with an empty default triple
 # Some tests are "generic" and require a valid default triple
+print "***", config.target_triple
 if config.target_triple:
     config.available_features.add("default_triple")
+    if re.match(r'^x86_64.*-linux', config.target_triple):
+      config.available_features.add("x86_64-linux")
 
 # Native compilation: host arch == default triple arch
 # FIXME: Consider cases that target can be executed
 # even if host_triple were different from target_triple.
 if config.host_triple == config.target_triple:
     config.available_features.add("native")
 
 import subprocess

test/tools/sancov/covered_functions.test

+REQUIRES: x86_64-linux
 RUN: sancov -obj %p/Inputs/test-linux_x86_64 -covered_functions %p/Inputs/test-linux_x86_64.sancov | FileCheck %s
 RUN: sancov -obj %p/Inputs/test-linux_x86_64 -covered_functions %p/Inputs/test-linux_x86_64-1.sancov | FileCheck --check-prefix=MULTIPLE_FILES %s
 RUN: sancov -obj %p/Inputs/test-linux_x86_64 -demangle=0 -covered_functions %p/Inputs/test-linux_x86_64.sancov | FileCheck --check-prefix=NO_DEMANGLE %s
 
 CHECK: Inputs{{[/\\]}}test.cpp:12 bar(std::string)
 CHECK: Inputs{{[/\\]}}test.cpp:14 main
 
 MULTIPLE_FILES: {{^}}foo.cpp:5 foo()
 MULTIPLE_FILES: {{^}}test.cpp:12 bar(std::string)
 MULTIPLE_FILES: {{^}}test.cpp:14 main
 
 NO_DEMANGLE: test.cpp:12 _Z3barSs
 NO_DEMANGLE: test.cpp:14 main

test/tools/sancov/print.test

 RUN: sancov -obj %p/Inputs/test-linux_x86_64 -print %p/Inputs/test-linux_x86_64.sancov | FileCheck %s
 
 CHECK: 0x4db18b
 CHECK: 0x4db2d2
 CHECK: 0x4db322
 CHECK: 0x4db376
 CHECK: 0x4db3bd
 CHECK: 0x4db3f4
 CHECK: 0x4db427
 CHECK: 0x4db45a