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Jakob Stoklund Olesen b6b35a4955 Always let value types influence register classes. 
When creating a virtual register for a def, the value type should be
used to pick the register class. If we only use the register class
constraint on the instruction, we might pick a too large register class.

Some registers can store values of different sizes. For example, the x86
xmm registers can hold f32, f64, and 128-bit vectors. The three
different value sizes are represented by register classes with identical
register sets: FR32, FR64, and VR128. These register classes have
different spill slot sizes, so it is important to use the right one.

The register class constraint on an instruction doesn't necessarily care
about the size of the value its defining. The value type determines
that.

This fixes a problem where InstrEmitter was picking 32-bit register
classes for 64-bit values on SPARC.

llvm-svn: 199187
 		2014-01-14 06:18:38 +00:00
..
autoconf Remove the last weird subproject, 'privbracket'. 2014-01-14 05:05:18 +00:00
bindings Makefile.ocaml: Tweak to use --system-libs. 2013-12-20 00:36:59 +00:00
cmake Factor the option and checking of compiler version better. Put the 2014-01-13 22:21:34 +00:00
docs Docs: fix sign of division and increase equivocation on code generated. 2014-01-13 10:47:04 +00:00
examples [cleanup] Re-sort the examples #include lines with my sort_includes 2014-01-13 09:58:03 +00:00
include [PM] Fix stale header blocker, found by Duncan Smith in code review! 2014-01-14 05:50:19 +00:00
lib Always let value types influence register classes. 2014-01-14 06:18:38 +00:00
projects Revert "Revert "Windows: Add support for unicode command lines"" 2013-10-07 01:00:07 +00:00
test Always let value types influence register classes. 2014-01-14 06:18:38 +00:00
tools [PM] Split DominatorTree into a concrete analysis result object which 2014-01-13 13:07:17 +00:00
unittests Update getLazyBitcodeModule to use ErrorOr for error handling. 2014-01-13 18:31:04 +00:00
utils AVX-512: Embedded Rounding Control - encoding and printing 2014-01-13 12:55:03 +00:00
.arcconfig
…
.clang-format Add a clang-format file so that the tool can automatically detect the 2013-09-02 07:19:04 +00:00
.gitignore
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CMakeLists.txt Factor the option and checking of compiler version better. Put the 2014-01-13 22:21:34 +00:00
CODE_OWNERS.TXT Update email address. 2013-12-04 09:42:49 +00:00
CREDITS.TXT Fix documentation typos 2013-12-20 00:33:39 +00:00
LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile llvm-config: Fixup r197380, tweak for cross compilation. SYSTEM_LIBS should be --host's in BuildTools/llvm-config. 2013-12-16 13:09:06 +00:00
Makefile.common
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Makefile.config.in
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Makefile.rules [Mips]Work around MIPS linker issues exposed by commit r198087 until bug 18360 is resolved 2014-01-03 22:18:43 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00
configure Remove the last weird subproject, 'privbracket'. 2014-01-14 05:05:18 +00:00
llvm.spec.in
…

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.