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: 94177

llvm-svn: 94175

when checking for covariance. Added some fun test cases, fixes PR6110.

This felt obvious enough to just commit. ;] Let me know if anything needs
tweaking.

llvm-svn: 94173

LoopStrengthReduce, as it's causing too much trouble (even with the
old LoopStrengthReduce code).

llvm-svn: 94172

llvm-svn: 94168

llvm-svn: 94167

Switch over the asm-verbose comment for double values to use it.  We now get:

_x:
	.long	343597384                                   ## double 1.231200e+02
	.long	1079953326

For example, note that the comment is on the same line as the .long.  Woo.

llvm-svn: 94166

llvm-svn: 94165

missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164

llvm-svn: 94163

llvm-svn: 94162

llvm-svn: 94161

llvm-svn: 94160

llvm-svn: 94159

llvm-svn: 94158

llvm-svn: 94157

llvm-svn: 94156

llvm-svn: 94155

llvm-svn: 94154

handling (for C++). No functionality change for now.

llvm-svn: 94153

compiler-rt. This tool chain now works on x86 and ARM, but isn't the x86 default
yet. 

This drastically cleans up the linker invocation, old invocation:
--
"/Developer/usr/bin/../libexec/gcc/i686-apple-darwin10/4.2.1/ld" "-dynamic" "-arch" "x86_64" "-macosx_version_min" "10.6.0" "-weak_reference_mismatches" "non-weak" "-o" "a.out" "-lcrt1.10.6.o" "-L/usr/lib/gcc/i686-apple-darwin10/4.2.1/x86_64" "-L/usr/lib/gcc/i686-apple-darwin10/4.2.1/x86_64" "-L/usr/lib/i686-apple-darwin10/4.2.1" "-L/usr/lib/gcc/i686-apple-darwin10/4.2.1" "-L/usr/lib/gcc/i686-apple-darwin10/4.2.1" "-L/usr/lib/gcc/i686-apple-darwin10/4.2.1/../../../i686-apple-darwin10/4.2.1" "-L/usr/lib/gcc/i686-apple-darwin10/4.2.1/../../.." "t.o" "-lSystem" "-lgcc"
--

New invocation:
--
# For 10.6:
 "/usr/bin/ld" "-dynamic" "-arch" "x86_64" "-macosx_version_min" "10.6.0" "-o" "a.out" "-lcrt1.10.6.o" "t.o" "-lSystem"
# For 10.4:
 "/usr/bin/ld" "-dynamic" "-arch" "x86_64" "-macosx_version_min" "10.4" "-o" "a.out" "-lcrt1.o" "t.o" "-lSystem" "-lgcc_s.10.4" "/Volumes/Data/ddunbar/llvm.obj.64/Debug/lib/clang/1.1/lib/darwin/libclang_rt.10.4.a"
--

llvm-svn: 94150

not always added.

llvm-svn: 94149

Teach pre-regalloc scheduler to schedule loads from nearby addresses. It may improve cache locality. This is controlled by -cluster-loads for now.

llvm-svn: 94148

llvm-svn: 94147

llvm-svn: 94146

llvm-svn: 94145

name being used in an driver invocation.

llvm-svn: 94139

diverge from gcc anyway.

llvm-svn: 94138

llvm-svn: 94137

llvm-svn: 94136

llvm-svn: 94135

llvm-svn: 94134

llvm-svn: 94132

other tools can link it.

llvm-svn: 94131

llvm-svn: 94130

llvm-svn: 94129

llvm-svn: 94128

llvm-svn: 94127

llvm-svn: 94126