Commit Graph

1702 Commits

Author SHA1 Message Date
b89be6150a Add RCBarriers to TargetInstrDesc. It's a list of register classes the given instruction can "clobber". For example, on x86 the call instruction can modify all of the XMM and fp stack registers.
TableGen has been taught to generate the lists from instruction definitions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57722 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17 21:00:09 +00:00
b2a1432507 Use INT64_C to emit constant values, to avoid problems with
constants that don't fit in an int. This fixes
"this decimal constant is unsigned only in ISO C90"
warnings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57668 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17 04:40:39 +00:00
63f97201dc Fun x86 encoding tricks: when adding an immediate value of 128,
use a SUB instruction instead of an ADD, because -128 can be
encoded in an 8-bit signed immediate field, while +128 can't be.
This avoids the need for a 32-bit immediate field in this case.

A similar optimization applies to 64-bit adds with 0x80000000,
with the 32-bit signed immediate field.

To support this, teach tablegen how to handle 64-bit constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17 01:33:43 +00:00
0540e17788 Add support for having multiple predicates on a TreePatternNode.
This will allow predicates to be composed, which will allow the
predicate definitions to become less redundant, and eventually
will allow DAGISelEmitter.cpp to emit less redundant code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57562 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15 06:17:21 +00:00
4520dd2b7b Add <cstdio> include where needed by gcc-4.4.
Patch by Samuel Tardieu.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57291 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-08 07:23:46 +00:00
e93f5db6e5 Set UNIVERSAL_ARCH value.
Fixes build failure when target is i386.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57211 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-06 21:24:48 +00:00
1cfa0776c3 Fix shift overflow bug that would occur when a field was a full 32-bits
in tblgen.  This is PR2827, thanks to Waldemar Knorr for tracking this
down.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05 18:31:58 +00:00
8d59af356f Make GenLibDeps.pl more robust in the face of broken piping problems.
Patch by Kenneth Boyd!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57057 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-04 18:03:46 +00:00
48c1bc2ace Handle some 64-bit atomics on x86-32, some of the time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56963 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-02 18:53:47 +00:00
5ec9efd61b Move the primary fast-isel top-level comments to FastISel.cpp, where
they'll be a little more visible. Also, update and reword them a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56877 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30 20:48:29 +00:00
31bd42bc63 Move the code that handles DAGISel error conditions into
helper functions instead of duplicating it inline each time
it is needed. This eliminates a few hundred or so copies
of this code in each target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56759 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-27 23:53:14 +00:00
7810bfed55 Rename ConstantSDNode's getSignExtended to getSExtValue, for
consistancy with ConstantInt, and re-implement it in terms
of ConstantInt's getSExtValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56700 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-26 21:54:37 +00:00
0598866c05 Large mechanical patch.
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56622 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-25 21:00:45 +00:00
4a1a77c1c9 Move llvmc2 header files under include/llvm/CompilerDriver
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56466 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 20:50:40 +00:00
c82ce4a8a7 Plugin support for llvmc2 (a-la opt).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 20:49:34 +00:00
0737651452 Make comments a little bit more clear.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56463 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 20:48:22 +00:00
11a353a206 Get rid of GlobalLanguageMap. Global state is evil.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56462 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 20:47:46 +00:00
fdee954623 Add a (forward_as) option property
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 20:46:19 +00:00
5ccf28f168 Delete the file llvmc2/doc/LLVMC-Enhancements.rst + some minor language/spelling fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56458 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 20:45:17 +00:00
3d01fc7de8 Initial support for the CMake build system.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 01:08:49 +00:00
bc95b23156 Add instruction names as comments to InstBits entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56275 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-17 06:29:52 +00:00
f94474161f Remove.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56256 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-16 22:26:44 +00:00
056292fd73 Reverting r56249. On further investigation, this functionality isn't needed.
Apologies for the thrashing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56251 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-16 21:48:12 +00:00
9468a9b6be - Change "ExternalSymbolSDNode" to "SymbolSDNode".
- Add linkage to SymbolSDNode (default to external).
- Change ISD::ExternalSymbol to ISD::Symbol.
- Change ISD::TargetExternalSymbol to ISD::TargetSymbol

These changes pave the way to allowing SymbolSDNodes with non-external linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56249 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-16 21:12:30 +00:00
89e9ed3795 Extract optimization pass selection code from llvm-gcc into a separate routine.
This can be used by other stand alone tools, such as 'opt'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56229 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-15 21:13:42 +00:00
0d58eb63fc Update the LLVM polygen grammar for recent language changes:
x86_ssecallcc, function notes, and some whitespace adjustments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56221 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-15 16:10:51 +00:00
4fbd796a12 Change ConstantSDNode and ConstantFPSDNode to use ConstantInt* and
ConstantFP* instead of APInt and APFloat directly.

This reduces the amount of time to create ConstantSDNode
and ConstantFPSDNode nodes when ConstantInt* and ConstantFP*
respectively are already available, as is the case in
SelectionDAGBuild.cpp. Also, it reduces the amount of time
to legalize constants into constant pools, and the amount of
time to add ConstantFP operands to MachineInstrs, due to
eliminating ConstantInt::get and ConstantFP::get calls.

It increases the amount of work needed to create new constants
in cases where the client doesn't already have a ConstantInt*
or ConstantFP*, such as legalize expanding 64-bit integer constants
to 32-bit constants. And it adds a layer of indirection for the
accessor methods. But these appear to be outweight by the benefits
in most cases.

It will also make it easier to make ConstantSDNode and
ConstantFPNode more consistent with ConstantInt and ConstantFP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56162 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12 18:08:03 +00:00
f5aeb1a8e4 Rename ConstantSDNode::getValue to getZExtValue, for consistency
with ConstantInt. This led to fixing a bug in TargetLowering.cpp
using getValue instead of getAPIntValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12 16:56:44 +00:00
84a8be3baf Indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56107 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 17:31:12 +00:00
7c9a7728d9 lib/Target/SubtargetFeature.cpp asserts that the FeatureKV[] table be sorted
by its first field, but TableGen doesn't actually enforce creating it that 
way. TableGen sorts the records that will be used to create it by the names 
of the records, not the Name field of those records.

This patch corrects the sort to use the "Name" field of the record as the 
sort key.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56106 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 17:05:32 +00:00
dd595c5998 Change getSubReg semantics. It now returns zero if the specified register doesn't have a subreg of the specified index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56099 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 06:25:25 +00:00
eb3db1cec2 Fix typos in (generated) comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55916 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08 16:29:36 +00:00
98d2d07d41 Correctly handle physical register inputs. They are not explicit input operands in the resulting machine instrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55893 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-08 08:39:33 +00:00
e3e3626338 Eliminate a compile time warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-07 09:00:57 +00:00
d07b46e908 Fix indentation of generated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55876 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-07 08:23:06 +00:00
34fc6ceb73 Ignore multi-instruction patterns. e.g.
def : Pat<(i8 (trunc GR32:$src)),
          (i8 (EXTRACT_SUBREG (MOV32to32_ GR32:$src), x86_subreg_8bit))>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55875 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-07 08:19:51 +00:00
c3f44b0d63 Let tblgen only generate fastisel routines, not the class definition. This makes it easier for targets to define its own fastisel class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55679 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-03 00:03:49 +00:00
acff339e39 Change getBinaryCodeForInstr prototype. First operand MachineInstr& should be const. Make corresponding changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55623 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02 06:51:36 +00:00
667d8f7607 Add initial support for fast isel of instructions that have inputs pinned to physical registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55545 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-29 17:45:56 +00:00
99b218218c Add a target callback for FastISel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55512 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 23:21:34 +00:00
d80360ae2e just a brain dump for a small tool
that brings us to 80-col violations
or tabs.

Usage:
  visit-violations <file>

At the moment it outputs editor invocations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55509 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 23:15:28 +00:00
ba36cb5242 erect abstraction boundaries for accessing SDValue members, rename Val -> Node to reflect semantics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55504 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 21:40:38 +00:00
b5dbcb538b Add support for fast-isel of opcodes that require use of extract_subreg. Because of how extract_subreg is treated, it requires special case handling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55480 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 18:06:12 +00:00
833ddf8430 Update a comment to reflect recent changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55418 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 16:18:22 +00:00
10df0fa73e Basic FastISel support for floating-point constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55401 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27 01:09:54 +00:00
99a6cb92d1 disallow direct access to SDValue::ResNo, provide a getter instead
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55394 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 22:36:50 +00:00
72d63af3f7 Refactor a bunch of FastISelEmitter code into a helper class, and
put each major step in a separate function. This makes the high
level sequence of events easier to follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 21:21:20 +00:00
c93457053c - small bug corrected: incorrect iterator type.
- fix to please VS: add a return after an assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55380 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 19:49:04 +00:00
70647e81e3 We need to check that the return type is correct, even in cases where we don't
have a return type that differs from the operand types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55376 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 18:50:00 +00:00
9783d62422 code simplification, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55363 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 07:01:28 +00:00