TimeValue()::now().toEpochTime() is supposed to be the same as time(),
but it wasn't, because toEpoch subtracted PosixZeroTime, but now()
didn't add PosixZeroTime!
Add a unittest to check this works.

llvm-svn: 94178

llvm-svn: 93913

Patch by Diego Iastrubni!

llvm-svn: 93450

DynamicLibrary::SearchForAddressOfSymbol refer to declarations in the
global namespace.

llvm-svn: 92023

llvm-svn: 92021

DynamicLibrary::SearchForAddressOfSymbol and force them to have "C"
linkage. 

Interestingly, GCC treats the block-scoped "extern" declarations we
previously had as if they were extern "C" declarations (or, at least,
were in the global namespace), so that GCC bug papered over this LLVM
bug. Clang and EDG get the linkage correct; this new variant seems to
work for both GCC and Clang.

llvm-svn: 92020

llvm-svn: 92011

llvm-svn: 91706

llvm-svn: 91620

is not used by anything performance sensitive, so just use std::string.

llvm-svn: 91528

a fixed size buffer is perfectly fine.

llvm-svn: 91527

gcc warned that the function may not have a return value, indeed
for non-intel and non-amd X86 CPUs it is right (VIA, etc.).

llvm-svn: 91276

x86 CPU detection for the X86 getHostCPUName too, and create a simple
getHostCPUName that returns "generic" for all else.

llvm-svn: 91240

MSVS2k8 doesn't define __i386__, hence all the CPU detection code was disabled.
Enable it by looking for _MSC_VER.

llvm-svn: 91217

llvm-svn: 90937

sys::cas_flag should be long on this platform, InterlockedAdd() is
defined only for the Itanium architecture (according to MSDN).

Patch by Michael Beck!

llvm-svn: 90748

llvm-svn: 90083

case where realpath() fails. When this occurs we segfault trying to
create a std::string from a NULL pointer.

Fixes PR5635.

llvm-svn: 90082

API change Path::isSpecialFile to Path::isRegularFile, improve semantics in regards to comments from 89765 post review.

llvm-svn: 89848

llvm-svn: 89786

llvm-svn: 89765

Patch by Tobias Grosser!

llvm-svn: 89406

llvm-svn: 89341

of failure. The x86 target didn't like empty cpu names and broke x86 tests on
non-x86 buildbots.

llvm-svn: 89111

llvm-svn: 88818

properly detect my Xeon box though.

llvm-svn: 88814

 - This is an initial step towards -march=native support in Clang, and towards
   eliminating host dependencies in the targets. See PR5389.

 - Patch by Roman Divacky!

llvm-svn: 88768

not to work any more on linux.

llvm-svn: 86481

llvm-svn: 86132

llvm-svn: 85782

llvm-svn: 85575

direct inclusion edge from System to Support.

llvm-svn: 85086

llvm-svn: 85074

Use 'waitpid' instead of 'wait'.  Basing Program::Wait() on 'wait()' prevents it being correct within a multithreaded context.

This address: PR 5277 (Program::Wait is unsafe to call from multiple threads).

Note: If waitpid() turns out to be non-portable, we can add more autoconf magic, or look into
another solution.

llvm-svn: 84903

llvm-svn: 83823

- MingW needs -lpsapi (in ${LIBS}) linked after -lLLVMSystem.
  Noticed by Ronald Pijnacker!

- Some parts of the System library must be build with exceptions on windows.
  Based on a patch by Jay Foad!

llvm-svn: 83251

llvm-svn: 82552

llvm-svn: 82551

GetProcessId() was introduced only in Windows XP, and we want to support earlier
versions.

llvm-svn: 82548

Add a magic LLVM_DISABLE_CRT_DEBUG environment variable which we check in RegisterHandler and use to disable the Win32 crash dialogs. These are a major blocker to any kind of automated testing.

Also, tweak the 'lit' test runner to set this variable unconditionally.

llvm-svn: 82537