properly (examples: "", ".", "a").

llvm-svn: 18883

* Correct the std::string constructor to take a const reference.

llvm-svn: 18877

llvm-svn: 18876

* Fix loop style per standards
* Don't create a new Module when the Linker's module is released.
* Add/fix function comments.

llvm-svn: 18871

llvm-svn: 18870

llvm-svn: 18869

llvm-svn: 18867

llvm-svn: 18866

* Remove IsLibrary and GetLibraryPath, replaced by FindLibrary in ../Path.cpp \
* Implement GetSystemLibraryPaths and GetBytecodeLibraryPaths, instead of the \
  GetSystemLibraryPath1 and GetSystemLibraryPath2 methods

llvm-svn: 18862

* Move generic isArchive method here from Unix/Path.cpp \
* Implement isDynamicLibrary \
* Implement FindLibrary for Linker

llvm-svn: 18861

llvm-svn: 18860

llvm-svn: 18859

llvm-svn: 18858

* Remove redundant static function LinkOneLibrary. \
* Remove unneded #includes \
* Convert FileSupport usage to sys::Path instead

llvm-svn: 18857

llvm-svn: 18856

* Convert functions to Linker:: methods. \
* Remove unneeded #includes \
* Utilize sys::Path utilities not FileSupport utilities \
* Move File & Library linking functions to other source files

llvm-svn: 18855

* Get file information from a MappedFile instance \
* Convert file type tests to sys::Path form

llvm-svn: 18854

llvm-svn: 18853

llvm-svn: 18852

llvm-svn: 18846

llvm-svn: 18844

llvm-svn: 18843

in some cases.

llvm-svn: 18842

llvm-svn: 18841

llvm-svn: 18840

llvm-svn: 18839

In particular, implement div.ll:test10 and rem.ll:test4.

llvm-svn: 18838

when compiled with debug information.

llvm-svn: 18835

llvm-svn: 18833

failures from last night.

llvm-svn: 18832

This fixes a crash compiling TimberWolfMC that was exposed due to recent
optimizer changes.

llvm-svn: 18831

llvm-svn: 18830

llvm-svn: 18826

llvm-svn: 18824

Also, fix a bug where ubyte 255 would sometimes be output as -1. This
was afflicting hbd.

llvm-svn: 18823

llvm-svn: 18820

in SPEC, the subsequent optimziations that we are after don't play with
with FP values, so disable this xform for them.  Really we just don't want
stuff like:

double G;   (always 0 or 412312.312)
  = G;

turning into:

bool G_b;
  = G_b ? 412312.312 : 0;

We'd rather just do the load.

-Chris

llvm-svn: 18819

llvm-svn: 18818

down to actually BE a bool.  This allows simple value range propagation
stuff work harder, deleting comparisons in bzip2 in some hot loops.

This implements GlobalOpt/integer-bool.ll, which is the essence of the
loop condition distilled into a testcase.

llvm-svn: 18817

if the other side is overdefined.

This allows us to fold conditions like:  if (X < Y || Y > Z) in some cases.

llvm-svn: 18807