Commit Graph

1068 Commits

Author SHA1 Message Date
Evan Cheng
b7c3e867a5 TargetRegisterDesc::Name field is the same as the abstract register name. There is no need for targets to specify register names in addition to their AsmName's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53207 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-07 22:19:41 +00:00
Dan Gohman
95d110920e Refactor the tablegen DAGISelEmitter code for outputing calls to
getTargetNode and SelectNodeTo to reduce duplication, and to
make some of the getTargetNode code available to SelectNodeTo.
Use SelectNodeTo instead of getTargetNode in several new
interesting cases, as it mutates nodes in place instead of
creating new ones.

This triggers some scheduling behavior differences due to nodes
being presented to the scheduler in a different order. Some of the
arbitrary scheduling decisions it makes are now arbitrarily made
differently. This is visible in CodeGen/PowerPC/LargeAbsoluteAddr.ll,
where a trivial scheduling difference led to a trivial register
allocation difference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53203 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-07 21:00:17 +00:00
Dan Gohman
1002c02034 Add explicit keywords.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-07 18:00:37 +00:00
Evan Cheng
f9d0318950 isel load folding is disabled at -fast. Now hoist the check up to the top level to save some time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-03 08:39:51 +00:00
Dan Gohman
cd920d9ecf Replace a few uses of SelectionDAG::getTargetNode with
SelectionDAG::SelectNodeTo in the instruction selector. This
updates existing nodes in place instead of creating new ones.

Go back to selecting ISD::DBG_LABEL nodes into
TargetInstrInfo::DBG_LABEL nodes instead of leaving them
unselected, now that SelectNodeTo allows us to update them
in place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53057 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02 23:23:19 +00:00
Owen Anderson
605041e5a8 Make the subregister hashtable output more readable by wrapping the lines,
and mark it const along with the associated changes to TargetRegisterInfo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52966 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01 17:34:38 +00:00
Owen Anderson
b43f7e05ff Use delete[] instead of free on an array created with new[].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52960 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01 15:56:31 +00:00
Owen Anderson
57ce0319b7 Implement suggestions from Chris:
- Use a more accurate heuristic for the size of the hashtable.
  - Use bitwise and instead of modulo since the size is a power of two.
  - Use new[] instead of malloc().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52951 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01 07:02:30 +00:00
Owen Anderson
f4f9c4f1cf Replace the dynamically computed std::set lookup method for subregisters with a hashtable-based
version that is computed by tblgen at the time LLVM is compiled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52945 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01 00:18:52 +00:00
Dan Gohman
4406604047 Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating
the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.

Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.

This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52943 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-01 00:05:16 +00:00
Evan Cheng
2036835346 Eliminate TargetRegisterDesc::ImmSubRegs. It's no longer in use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52892 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-30 07:32:56 +00:00
Chris Lattner
2ca698df93 check in anton's patch to make inlining happen in a determinstic order
and fix the bug that it uncovers: inlining a pattern fragment could bring
in other pattern fragments if the inlinee hadn't already been inlined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52888 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-30 03:02:03 +00:00
Dale Johannesen
b5dae00325 Fixes the last x86-64 test failure in compat.exp:
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code.  The
computation changing FP-relative offsets to SP-relative
was broken, assiging a spill temp to a location
also used for parameter passing.  This
fixes it by rounding up the stack frame to a multiple
of the largest alignment (I concluded it wasn't fixable
without doing this, but I'm not very sure.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52750 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-26 01:51:13 +00:00
Mon P Wang
2887310630 Added MemOperands to Atomic operations since Atomics touches memory.
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25 08:15:39 +00:00
Evan Cheng
6bd9567a6a - Add "Commutative" property to intrinsics. This allows tblgen to generate the commuted variants for dagisel matching code.
- Mark lots of X86 intrinsics as "Commutative" to allow load folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52353 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 20:29:38 +00:00
Matthijs Kooijman
d3979a51ee Remove some debug output from tblgen. This fixes a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52177 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-10 14:53:49 +00:00
Duncan Sands
83ec4b6711 Wrap MVT::ValueType in a struct to get type safety
and better control the abstraction.  Rename the type
to MVT.  To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits().  Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52044 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 12:08:01 +00:00
Chris Lattner
32a9e7a265 Add #includes required by GCC 4.3, thanks for Zhongxing Xu
for reporting this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51926 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-04 04:46:14 +00:00
Dan Gohman
37cdad3e59 Fix the position of MemOperands in nodes that use variadic_ops
in DAGISelEmitter output. This bug was recently uncovered by the
addition of patterns for CALL32m and CALL64m, which are nodes
that now have both MemOperands and variadic_ops.

This bug was especially visible with PIC in various configurations,
because the new patterns are matching the indirect call code used
in many PIC configurations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51877 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-02 17:40:38 +00:00
Anton Korobeynikov
12a3f8302a Initialize members properly during construction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51841 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-01 16:22:49 +00:00
Mikhail Glushenkov
310d2eb202 Callback was not executed on OS X when it was a function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51814 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31 13:43:21 +00:00
Dan Gohman
e4c67cdab4 Teach the DAGISelEmitter to not compute the variable_ops operand
index for the input pattern in terms of the output pattern. Instead
keep track of how many fixed operands the input pattern actually
has, and have the input matching code pass the output-emitting
function that index value. This simplifies the code, disentangles
variables_ops from the support for predication operations, and
makes variable_ops more robust.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51808 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-31 02:11:25 +00:00
Mikhail Glushenkov
a7d0ae34fb Add a check for side effect-free options (specified only in the OptionList).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51759 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:28:37 +00:00
Mikhail Glushenkov
2b7bcb4e8d Refactoring: remove code duplication introduced in the previous patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51757 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:27:29 +00:00
Mikhail Glushenkov
09b51c348c Refactoring: split CollectProperties into two separate function objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51756 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:27:02 +00:00
Mikhail Glushenkov
e43228958c New feature: OptionList.
It can be handy to have all information about options gathered in a single place
to provide an overview of all supported options. This patch allows the following:

def Options : OptionList<[
(switch_option "E", (help "Help string")),
(alias_option "quiet", "q")
...
]>;

Tool-specific option properties (like 'append_cmd') have (obviously) no meaning in
this context, so the only properties that are allowed are 'help' and 'required'.

See usage example in examples/Clang.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51754 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:26:08 +00:00
Mikhail Glushenkov
5fe8475e3a A small optimization: use static char* array instead of StrVector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51752 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:24:49 +00:00
Mikhail Glushenkov
92b8da75a1 Make it possible to test if the '-o' option is provided.
The following is now allowed:

    (case (not_empty "o"), do_something, ...)

This didn't work previously because "-o" is built-in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51751 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:24:07 +00:00
Mikhail Glushenkov
34f376281f Fix: 'sink' handling was broken.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51750 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:23:29 +00:00
Mikhail Glushenkov
6be4ffc7c3 Add support for option aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51749 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:22:52 +00:00
Mikhail Glushenkov
2d0dc9ab44 Allow nesting of case expressions.
The following is now legal:

    (case (in_language "c"),
          (case (switch_on "E"), "gcc -x c -E $INFILE", (default), "gcc -x c $INFILE"),
          (default),
          "gcc $INFILE $OUTFILE")


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51748 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:22:15 +00:00
Mikhail Glushenkov
4fb71eae48 Small error message improvement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51747 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:21:48 +00:00
Mikhail Glushenkov
708e7c29bc Remove RequireDefault parameter from EmitCaseConstructHandler.
There are now no situations when 'default' is required.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51746 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:21:21 +00:00
Mikhail Glushenkov
fb37f39111 Fix some headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51745 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:20:54 +00:00
Mikhail Glushenkov
2e73e851d8 New tests for the 'case' expression: not_empty, in_language.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51744 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:19:52 +00:00
Mikhail Glushenkov
ffcf3a1a69 Make it possible to have multiple input languages for a single tool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51742 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:18:16 +00:00
Mikhail Glushenkov
cb64f4be3a Better error reporting for the 'case' construct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51738 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:15:47 +00:00
Mikhail Glushenkov
37f509a70c Do not generate empty 'if's for the output_suffix property.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51737 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:15:20 +00:00
Mikhail Glushenkov
2242456da5 Make it possible to use hooks like this: '$CALL(MyHook)/path/to/file'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51734 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:13:29 +00:00
Mikhail Glushenkov
5c7578de08 Make it possible to change the output file suffix based on command-line options.
For instance, the following command:

    llvmc2 -E hello.c

now generates a file with the correct suffix (hello.i).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51733 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:13:02 +00:00
Mikhail Glushenkov
08bd2e74dc Add support for user-provided hooks and environment variable reads to the cmd_line tool property.
Used like this: (cmd_line "$CALL(MyHook) --option -o $ENV(VARIABLE) $CALL(AnotherHook)")
Also works with case expressions.

Hook declarations are auto-generated, the definitions should be provided by the user
(just drop a .cpp file in the tools/llvmc2 directory).

Hooks should live in the "hooks" namespace and have type std::string hooks::Hook(void).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51732 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:12:24 +00:00
Mikhail Glushenkov
14ec27fff1 Some small tweaks to make the generated code prettier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51729 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:10:47 +00:00
Mikhail Glushenkov
b5ccfbf0a9 Make it possible to use the generalised 'case' construct in the cmd_line property.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51728 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:10:19 +00:00
Mikhail Glushenkov
e5557f4da4 Add a generalised 'case' construct.
Besides assigning edge weights, it will also be used by the cmd_line tool property.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51727 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-30 06:08:50 +00:00
Dan Gohman
b4106170dd Add patterns for CALL32m and CALL64m. They aren't matched in most
cases due to an isel deficiency already noted in
lib/Target/X86/README.txt, but they can be matched in this fold-call.ll
testcase, for example.

This is interesting mainly because it exposes a tricky tblgen bug;
tblgen was incorrectly computing the starting index for variable_ops
in the case of a complex pattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 21:50:34 +00:00
Dan Gohman
d35121ad00 Fix a tblgen problem handling variable_ops in tblgen instruction
definitions. This adds a new construct, "discard", for indicating
that a named node in the input matching pattern is to be discarded,
instead of corresponding to a node in the output pattern. This
allows tblgen to know where the arguments for the varaible_ops are
supposed to begin.

This fixes "rdar://5791600", whatever that is ;-).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51699 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-29 19:57:41 +00:00
Bill Wendling
8370d38ade Add a flag to indicate that an instruction is as cheap (or cheaper) than a move
instruction to execute. This can be used for transformations (like two-address
conversion) to remat an instruction instead of generating a "move"
instruction. The idea is to decrease the live ranges and register pressure and
all that jazz.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51660 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-28 22:54:52 +00:00
Roman Levenstein
6422e8aa1c Do not generate by TableGen the hard-coded standard, target-independent part of
DAG instruction selectors. Introudce a dedicated header file for this part:
include/llvm/CodeGen/DAGISelHeader.h

TableGen now only generates the include preprocessor directive to include this
new header.

This is a preparation for supporting multiple implementations of instruction
selectors in the future.

Reviewed and approved by Evan and Dan.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51102 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 10:17:11 +00:00
Mikhail Glushenkov
5c98d824f6 Filter option names to escape symbols not allowed as C++ identifiers.
Makes it possible to use options with names like "Wa,".
Also fixes the -Wall option handling as a side-effect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50973 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 16:33:06 +00:00
Mikhail Glushenkov
8e7254cd44 Reapply 50867: A small refactoring (extract method) + some comment fixes.
Fixed the build breakage, sorry for that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50895 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09 08:27:26 +00:00