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303 Commits

Author SHA1 Message Date
Devang Patel
e4b275610a Reapply 79977. 
Use MDNodes to encode debug info in llvm IR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80406 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-28 23:24:31 +00:00
Devang Patel
8245988835 Revert 79977. It causes llvm-gcc bootstrap failures on some platforms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80073 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-26 05:01:18 +00:00
Devang Patel
2a610c7387 Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well. 
This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79977 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-25 05:24:07 +00:00
Devang Patel
24f20e0832 Record variable debug info at ISel time directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79742 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-22 17:12:53 +00:00
Owen Anderson
1d0be15f89 Push LLVMContexts through the IntegerType APIs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-13 21:58:54 +00:00
Owen Anderson
23b9b19b1a Add contexts to some of the MVT APIs. No functionality change yet, just the infrastructure work needed to get the contexts to where they need to be first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78759 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-12 00:36:31 +00:00
Owen Anderson
766b5efd99 Fix warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78725 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-11 21:59:30 +00:00
Owen Anderson
825b72b057 Split EVT into MVT and EVT, the former representing _just_ a primitive type, while 
the latter is capable of representing either a primitive or an extended type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78713 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-11 20:47:22 +00:00
Owen Anderson
e50ed30282 Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78610 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-10 22:56:29 +00:00
Owen Anderson
77547befdc Start moving TargetLowering away from using full MVTs and towards SimpleValueType, which will simplify the privatization of IntegerType in the future. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78584 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-10 18:56:59 +00:00
Owen Anderson
a7235ea724 Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are 
metadata related, which I'm waiting on to avoid conflicting with Devang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77721 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-31 20:28:14 +00:00
Owen Anderson
eed707b1e6 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77011 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 23:12:02 +00:00
Owen Anderson
e922c02019 Get rid of the Pass+Context magic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-22 00:24:57 +00:00
Owen Anderson
001dbfebcb Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in 
our current context-passing stuff, which is also fixed here


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76089 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-16 18:04:31 +00:00
Owen Anderson
0a5372ed3e Begin the painful process of tearing apart the rat'ss nest that is Constants.cpp and ConstantFold.cpp. 
This involves temporarily hard wiring some parts to use the global context.  This isn't ideal, but it's
the only way I could figure out to make this process vaguely incremental.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75445 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-13 04:09:18 +00:00
Devang Patel
7e1e31f467 Simplify debug info intrisinc lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74733 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-02 22:43:26 +00:00
Devang Patel
6d8f1263f4 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74677 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-02 00:28:03 +00:00
Devang Patel
30d7b650aa llvm.dbg.declare is always used for local variable's debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74625 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-01 18:51:07 +00:00
Devang Patel
1e86a66b00 mv CodeGen/DebugLoc.h Support/DebugLoc.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73786 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 22:08:58 +00:00
Devang Patel
11a407f43f Gracefully handle imbalanced inline function begin and end markers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73426 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-15 21:45:50 +00:00
Dan Gohman
ae3a0be92e Split the Add, Sub, and Mul instruction opcodes into separate 
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-04 22:49:04 +00:00
Duncan Sands
b0f1e1780c Add a new codegen pass that normalizes dwarf exception handling 
code in preparation for code generation.  The main thing it does
is handle the case when eh.exception calls (and, in a future
patch, eh.selector calls) are far away from landing pads.  Right
now in practice you only find eh.exception calls close to landing
pads: either in a landing pad (the common case) or in a landing
pad successor, due to loop passes shifting them about.  However
future exception handling improvements will result in calls far
from landing pads:
(1) Inlining of rewinds.  Consider the following case:
In function @f:
...
  invoke @g to label %normal unwind label %unwinds
...
unwinds:
  %ex = call i8* @llvm.eh.exception()
...

In function @g:
...
  invoke @something to label %continue unwind label %handler
...
handler:
  %ex = call i8* @llvm.eh.exception()
... perform cleanups ...
  "rethrow exception"

Now inline @g into @f.  Currently this is turned into:
In function @f:
...
  invoke @something to label %continue unwind label %handler
...
handler:
  %ex = call i8* @llvm.eh.exception()
... perform cleanups ...
  invoke "rethrow exception" to label %normal unwind label %unwinds
unwinds:
  %ex = call i8* @llvm.eh.exception()
...

However we would like to simplify invoke of "rethrow exception" into
a branch to the %unwinds label.  Then %unwinds is no longer a landing
pad, and the eh.exception call there is then far away from any landing
pads.

(2) Using the unwind instruction for cleanups.
It would be nice to have codegen handle the following case:
  invoke @something to label %continue unwind label %run_cleanups
...
handler:
... perform cleanups ...
  unwind

This requires turning "unwind" into a library call, which
necessarily takes a pointer to the exception as an argument
(this patch also does this unwind lowering).  But that means
you are using eh.exception again far from a landing pad.

(3) Bugpoint simplifications.  When bugpoint is simplifying
exception handling code it often generates eh.exception calls
far from a landing pad, which then causes codegen to assert.
Bugpoint then latches on to this assertion and loses sight
of the original problem.

Note that it is currently rare for this pass to actually do
anything.  And in fact it normally shouldn't do anything at
all given the code coming out of llvm-gcc!  But it does fire
a few times in the testsuite.  As far as I can see this is
almost always due to the LoopStrengthReduce codegen pass
introducing pointless loop preheader blocks which are landing
pads and only contain a branch to another block.  This other
block contains an eh.exception call.  So probably by tweaking
LoopStrengthReduce a bit this can be avoided.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72276 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-22 20:36:31 +00:00
Bill Wendling
df7d5d3170 Temporarily revert r72191. It was causing an assert during llvm-gcc 
bootstrapping.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72200 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-21 00:04:55 +00:00
Argyrios Kyrtzidis
a3437647dc Introduce DebugScope which gets embedded into the machine instructions' DebugLoc. 
DebugScope refers to a debug region, function or block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72191 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-20 22:57:17 +00:00
Duncan Sands
777d2306b3 Rename PaddedSize to AllocSize, in the hope that this 
will make it more obvious what it represents, and stop
it being confused with the StoreSize.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71349 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-09 07:06:46 +00:00
Dan Gohman
9a38e3e399 Revert 71165. It did more than just revert 71158 and it introduced 
several regressions. The problem due to 71158 is now fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71176 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-07 19:46:24 +00:00
Bill Wendling
5b8479c385 Temporarily revert r71158. It was causing a failure during a full bootstrap: 
checking for bcopy... no
checking for getc_unlocked... Assertion failed: (0 && "Unknown SCEV kind!"), function operator(), file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/Analysis/ScalarEvolution.cpp, line 511.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/libdecnumber/decUtility.c:360: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
make[4]: *** [decUtility.o] Error 1
make[4]: *** Waiting for unfinished jobs....
Assertion failed: (0 && "Unknown SCEV kind!"), function operator(), file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/Analysis/ScalarEvolution.cpp, line 511.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/libdecnumber/decNumber.c:5591: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
make[4]: *** [decNumber.o] Error 1
make[3]: *** [all-stage2-libdecnumber] Error 2
make[3]: *** Waiting for unfinished jobs....



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71165 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-07 17:26:14 +00:00
Argyrios Kyrtzidis
116b27444a Make DwarfWriter::RecordInlinedFnStart more like the other DwarfWriter's methods: 
-Have it return a label ID
-Remove the unused Instruction parameter

No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71132 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-07 00:16:31 +00:00
Mike Stump
fe095f39e7 Restore minor deletion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70892 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-04 18:40:41 +00:00
Argyrios Kyrtzidis
77eaa6880b -Move the DwarfWriter::ValidDebugInfo check to a static DIDescriptor::ValidDebugInfo 
-Create DebugLocs without the need to have a DwarfWriter around


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70682 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-03 08:50:41 +00:00
Argyrios Kyrtzidis
a26eae64dd Make DebugLoc independent of DwarfWriter. 
-Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable*
-Remove DwarfWriter::getOrCreateSourceID
-Make necessary changes for the above (fix callsites, etc.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70520 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-30 23:22:31 +00:00
Bill Wendling
98a366d547 Instead of passing in an unsigned value for the optimization level, use an enum, 
which better identifies what the optimization is doing. And is more flexible for
future uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 23:29:43 +00:00
Bill Wendling
be8cc2a3de Second attempt: 
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-29 00:15:41 +00:00
Bill Wendling
c69d56f115 r70270 isn't ready yet. Back this out. Sorry for the noise. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-28 01:04:53 +00:00
Bill Wendling
2e9d5f912a Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to 
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'm not 100% sure if it's necessary to change it there...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70270 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-28 00:21:31 +00:00
Devang Patel
02f8c41014 Do not treat beginning of inlined scope as beginning of normal function scope if the location info is missing. 
Insetad of doing ...
if (inlined_subroutine && known_location)
  DW_TAG_inline_subroutine
else
  DW_TAG_subprogram

do

if (inlined_subroutine) {
 if (known_location)
   DW_TAG_inline_subroutine
} else {
 DW_TAG_subprogram
}



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69300 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-16 17:55:30 +00:00
Devang Patel
906caf2ae4 Record line number at the beginning of a func.start. 
This line was accidently lost yesterday.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69286 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-16 15:07:09 +00:00
Devang Patel
682e0e6a72 If location where the function was inlined is not know then do not emit debug info describing inlinied region. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-16 01:31:54 +00:00
Devang Patel
8818b8f443 Add DISubprogram is not null check. 
This fixes test/CodeGen//2009-01-21-invalid-debug-info.m test case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69210 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-15 20:11:08 +00:00
Devang Patel
1be3eccecb Construct and emit DW_TAG_inlined_subroutine DIEs for inlined subroutine scopes (only in FastISel mode). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69116 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-15 00:10:26 +00:00
Devang Patel
48c7fa21a3 Right now, Debugging information to encode scopes (DW_TAG_lexical_block) relies on DBG_LABEL. Unfortunately this intefers with the quality of optimized code. 
This patch updates dwarf writer to encode scoping information in DWARF only in FastISel mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-13 18:13:16 +00:00
Devang Patel
0f7fef3872 Reapply 68847. 
Now debug_inlined section is covered by TAI->doesDwarfUsesInlineInfoSection(), which is false by default.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68964 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-13 17:02:03 +00:00
Chris Lattner
36e3946ac2 make UpdateValueMap handle the possiblity that we could be 
copying into the right register, avoiding a copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68889 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-12 07:46:30 +00:00
Chris Lattner
c5040ab606 optimize FastISel::UpdateValueMap to avoid duplicate map lookups, 
and make it return the assigned register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68888 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-12 07:45:01 +00:00
Dan Gohman
c6fa3ff0bd Revert r68847. It breaks the build on non-Darwin targets, with this message 
from the assembler:

Error: unknown pseudo-op: `.debug_inlined'


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68863 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-11 15:57:04 +00:00
Devang Patel
2057532679 Keep track of inlined functions and their locations. This information is collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.) 
Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68847 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-11 00:16:47 +00:00
Devang Patel
923838533a Silence unused variable warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68735 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-09 23:45:17 +00:00
Devang Patel
b396992f68 llvm.dbg.func_start also defines beginning of function scope. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68727 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-09 21:42:11 +00:00
Dan Gohman
4fd552880c Don't attempt to handle aggregate argument values in FastISel; let 
SelectionDAG do those. This fixes PR3955.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68546 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-07 20:40:11 +00:00
Dan Gohman
474d3b3f40 Improve FastISel's handling of truncates to i1, and implement 
ptrtoint and inttoptr in X86FastISel. These casts aren't always
handled in the generic FastISel code because X86 sometimes needs
custom code to do truncation and zero-extension.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 23:53:06 +00:00
Dan Gohman
14ea1ec232 Fix FastISel's assumption that i1 values are always zero-extended 
by inserting explicit zero extensions where necessary. Included
is a testcase where SelectionDAG produces a virtual register
holding an i1 value which FastISel previously mistakenly assumed
to be zero-extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66941 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 20:42:20 +00:00
Bill Wendling
0582ae99ba Oops...I committed too much. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66867 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 04:39:26 +00:00
Bill Wendling
c7a09ab311 Temporarily XFAIL this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-13 04:37:11 +00:00
Bill Wendling
ccbdc7ab82 Pass in a std::string when getting the names of debugging things. This cuts down 
on the number of times a std::string is created and copied.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66396 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-09 05:04:40 +00:00
Evan Cheng
e3d423244a Clean up dwarf writer, part 1. This eliminated the horrible recursive getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior. 
This is a very minor compile time win.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65438 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 07:04:34 +00:00
Bill Wendling
57f0db833d Overhaul my earlier submission due to feedback. It's a large patch, but most of 
them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 08:30:20 +00:00
Bill Wendling
5aa4977fba - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit 
a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65367 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 02:35:30 +00:00
Bill Wendling
92c1e12647 Revert this. It was breaking stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64428 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-13 02:16:35 +00:00
Bill Wendling
54fc7d6714 Turn off the old way of handling debug information in the code generator. Use 
the new way, where all of the information is passed on SDNodes and machine
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64427 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-13 02:01:04 +00:00
Chris Lattner
14c4c1ec0e make fast isel fall back to selectiondags for VLA llvm.declare intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-12 17:23:20 +00:00
Bill Wendling
9bc96a5720 Create DebugLoc information in FastISel. Several temporary methods were 
created. Specifically, those BuildMIs which use
"DebugLoc::getUnknownLoc()". I'll remove them soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63584 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-03 00:55:04 +00:00
Evan Cheng
536ab130ec Eliminate a couple of fields from TargetRegisterClass: SubRegClasses and SuperRegClasses. These are not necessary. Also eliminate getSubRegisterRegClass and getSuperRegisterRegClass. These are slow and their results can change if register file names change. Just use TargetLowering::getRegClassFor() to get the right TargetRegisterClass instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62762 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-22 09:10:11 +00:00
Devang Patel
b79b5359fb Verify debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62545 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-19 23:21:49 +00:00
Devang Patel
cf3a4487c0 Validate dbg_* intrinsics before lowering them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62286 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 23:41:32 +00:00
Devang Patel
83489bb770 Use DebugInfo interface to lower dbg_* intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62127 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-13 00:35:13 +00:00
Duncan Sands
ceb4d1aecb Rename getABITypeSize to getTypePaddedSize, as 
suggested by Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62099 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-12 20:38:59 +00:00
Dan Gohman
c8a1a3c426 Factor out the code for sign-extending/truncating gep indices 
and use it in x86 address mode folding. Also, make
getRegForValue return 0 for illegal types even if it has a
ValueMap for them, because Argument values are put in the
ValueMap. This fixes PR3181.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60696 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 07:57:47 +00:00
Evan Cheng
24ac408ce8 Eliminate some unused variable compile time warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59952 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-24 07:09:49 +00:00
Devang Patel
e75808cf3d Emit label for llvm.dbg.func.start of the inlined function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58814 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-06 21:28:20 +00:00
Dan Gohman
dd5b58ad7b FastISel support for exception-handling constructs. 
- Move the EH landing-pad code and adjust it so that it works
   with FastISel as well as with SDISel.
 - Add FastISel support for @llvm.eh.exception and
   @llvm.eh.selector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57539 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-14 23:54:11 +00:00
Chris Lattner
44d2a983b7 calls can be supported. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57428 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-13 01:59:13 +00:00
Dale Johannesen
23a98551ab Add a "loses information" return value to APFloat::convert 
and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-09 23:00:39 +00:00
Dan Gohman
1e9e8c3bd5 Avoid emitting redundant materializations of integer constants 
for things like null pointers, which at this level aren't
different from regular integer constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57265 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-07 22:03:27 +00:00
Dan Gohman
91b6f97ce4 Implement fast-isel support for zero-extending from i1. 
It turns out that this is a fairly common operation,
and it's easy enough to handle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56990 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-03 01:28:47 +00:00
Dan Gohman
d98d6203e4 Optimize conditional branches in X86FastISel. This replaces 
sequences like this:
       sete    %al
       testb   %al, %al
       jne     LBB11_1
with this:
       je      LBB11_1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56969 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-02 22:15:21 +00:00
Dan Gohman
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
Dan Gohman
5dd9c2e9ae Support for i1 XOR in FastISel. It is actually safe because 
i1 operands are assumed to already by zero-extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:22:52 +00:00
Dan Gohman
33134c4a75 FastISel support for debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:05:24 +00:00
Dan Gohman
dceffe66b9 Fix a recent fast-isel coverage regression - don't bail out before 
giving the target a chance to materialize constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 01:28:51 +00:00
Dan Gohman
d57dd5f4e6 Arrange for FastISel code to have access to the MachineModuleInfo 
object. This will be needed to support debug info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56508 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 21:53:34 +00:00
Dan Gohman
2ff7fd1461 Refactor X86SelectConstAddr, folding it into X86SelectAddress. This 
results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56371 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 22:16:54 +00:00
Dan Gohman
8211648757 FastISel support for i1 constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56068 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 21:01:08 +00:00
Dan Gohman
0586d91bb3 Add X86FastISel support for static allocas, and refences 
to static allocas. As part of this change, refactor the
address mode code for laods and stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56066 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 20:11:02 +00:00
Owen Anderson
0d95267e49 Clean this up, based on Evan's suggestions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56009 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:47:17 +00:00
Owen Anderson
baf37cd556 Check for type legality before materializing integer constants in fast isel. With this change, 
all of MultiSource/Applications passes on Darwin/X86 under FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55982 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 06:32:02 +00:00
Evan Cheng
59fbc80f6b Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55975 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 01:26:59 +00:00
Evan Cheng
5960e4eb68 Add fast isel physical register definition support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55892 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 08:38:20 +00:00
Evan Cheng
f09917847b Indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55880 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:04:52 +00:00
Owen Anderson
6e6074508c Revert r55859. This is breaking the build in the abscence of its companion commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 23:36:01 +00:00
Dan Gohman
638c6830c6 FastISel support for AND and OR with type i1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55846 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:44:22 +00:00
Dan Gohman
40b189e4e2 FastISel support for ConstantExprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55843 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:18:20 +00:00
Dan Gohman
087c8507e5 FastISel support for unreachable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55818 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:08:41 +00:00
Owen Anderson
95267a1e67 Add initial support for selecting constant materializations that require constant 
pool loads on X86 in fast isel.  This isn't actually used yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55814 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 00:06:23 +00:00
Dan Gohman
104e4ce162 Do trivial local CSE for constants and other non-Instruction values 
in FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:32:19 +00:00
Dan Gohman
3df24e667f Create HandlePHINodesInSuccessorBlocksFast, a version of 
HandlePHINodesInSuccessorBlocks that works FastISel-style. This
allows PHI nodes to be updated correctly while using FastISel.

This also involves some code reorganization; ValueMap and
MBBMap are now members of the FastISel class, so they needn't
be passed around explicitly anymore. Also, SelectInstructions
is changed to SelectInstruction, and only does one instruction
at a time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:12:08 +00:00
Owen Anderson
d5d81a457b Oops, I accidentally broke the fallback case with my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:51:57 +00:00
Owen Anderson
99aaf108cd Fix an issue where we were reusing materializations of constants in blocks not dominated by the materialization. This is 
the simple fix, materializing the constant before every use.  It might be better to either track domination of uses or
to materialize all constants and the beginning of the function and let remat sort when to do materialization at uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:37:03 +00:00
Evan Cheng
36fd941fc0 80 col violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55668 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 21:59:13 +00:00
Owen Anderson
cc54e76cc6 Fix an issue where a use might be selected before a def, and then we didn't respect the pre-chosen vreg 
assignment when selecting the def.  This is the naive solution to the problem: insert a copy to the pre-chosen
vreg.  Other solutions might be preferable, such as:
  1) Passing the dest reg into FastEmit_.  However, this would require the higher level code to know about reg classes, which they don't currently.
  2) Selecting blocks in reverse postorder.  This has some compile time cost for computing the order, and we'd need to measure its impact.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55555 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-30 00:38:46 +00:00
Dan Gohman
205d92589b Implement null and undef values for FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55500 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 21:19:07 +00:00
Owen Anderson
c0bb68b982 Hook up support for fast-isel of trunc instructions, using the newly working support for EXTRACT_SUBREG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55482 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 18:26:01 +00:00
Owen Anderson
40a468f249 FastEmitInst_extractsubreg doesn't need to be passed the register class. It can get it from MachineRegisterInfo instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 17:47:37 +00:00
Owen Anderson
8970f00def Add a helper method that will be used to support EXTRACT_SUBREG for selecting trunc's in fast-isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55439 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 22:30:02 +00:00
Dan Gohman
a318dabc0e Fix FastISel's bitcast code for the case where getRegForValue fails. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55431 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 20:41:38 +00:00
Owen Anderson
6336b70541 Use TargetLowering to get the types in fast isel, which handles pointer types correctly for our purposes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55428 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:58:30 +00:00
Dan Gohman
151ed61a2f Don't check TLI.getOperationAction. The FastISel way is to 
just try to do the action and let the tablegen-generated code
determine if there is target-support for an operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55427 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:15:05 +00:00
Dan Gohman
ad368ac2b5 Add a new FastISel method, getRegForValue, which takes care of 
the details of materializing constants and other values into
registers, and make use of it in several places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55426 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:10:19 +00:00
Dan Gohman
96a9999d79 Add a comment about the current floating-point constant code in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55425 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:01:42 +00:00
Dan Gohman
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
Owen Anderson
96c5ea878c Fix handling of inttoptr and ptrtoint when unhandled operands are present. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55400 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 00:35:37 +00:00
Owen Anderson
9d5b416240 Add support for fast isel of inttoptr and ptrtoint in the cases where truncation is not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55399 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 00:31:01 +00:00
Owen Anderson
d0533c9998 Factor out a large amoutn of the cast handling code in fast isel into helper methods. 
This simultaneously makes the code simpler and adds support for sext as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55398 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 23:46:32 +00:00
Owen Anderson
97e2568f46 Add support for fast isel of zext. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55396 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 23:14:49 +00:00
Owen Anderson
13269335a5 Add support for fptosi of constants in fast isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55393 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 22:34:28 +00:00
Dan Gohman
763d89343b Refactor the bitcast code into its own function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55387 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 21:28:54 +00:00
Dan Gohman
80bc6e2243 Make FastISel use the correct argument type when casting GEP indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55384 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:57:08 +00:00
Dan Gohman
b71fea248f Don't select binary instructions with illegal types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55383 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:52:40 +00:00
Owen Anderson
a843b8d391 Add support for fast isel of sitofp, and remove some unnecessary and imprecise legality checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55381 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:37:00 +00:00
Owen Anderson
77a218765a Use a combination of copyRegToReg and ISD::BIT_CONVERT when doing fast isel of bitcasts, 
allowing it to support the full range of conversions people might ask for in a correct manner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55378 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 18:51:24 +00:00
Owen Anderson
940f83e772 Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy requested 
was inserted or not.  This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55375 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 18:03:31 +00:00
Owen Anderson
46aa2f5aab Add support for fast isel of non-constant fptosi instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55373 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 17:44:42 +00:00
Owen Anderson
0f84e4e310 Add a RetVT parameter to emitted FastISel methods, so that we will be able to pass the desired return 
type down.  This is not currently used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55345 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-25 23:58:18 +00:00
Evan Cheng
b41aec5476 Unbreak build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55342 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-25 22:20:39 +00:00
Owen Anderson
d894f1d274 Expand bitcast support in fast isel to support bitcasts of non-constant values by emitting reg-reg copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55340 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-25 21:32:34 +00:00
Owen Anderson
6d0c25ec3a Add support for fast isel of (integer) immediate materialization pattens, and use them to support 
bitcast of constants in fast isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55325 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-25 20:20:32 +00:00
Dan Gohman
6ecf50908c Make MBBMap a DenseMap instead of a std::map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55220 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-23 02:44:46 +00:00
Dan Gohman
3c8f36fd03 Reapply r55191 and r55192. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55205 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 21:28:19 +00:00
Bill Wendling
449416deb6 Reverting r55190, r55191, and r55192. They broke the build with this error message: 
{standard input}:17:bad register name `%sil'
make[4]: *** [libgcc/./_addvsi3.o] Error 1
make[4]: *** Waiting for unfinished jobs....
{standard input}:23:bad register name `%dil'
{standard input}:28:bad register name `%dil'
make[4]: *** [libgcc/./_addvdi3.o] Error 1
{standard input}:18:bad register name `%sil'
make[4]: *** [libgcc/./_subvsi3.o] Error 1



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55200 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 20:51:05 +00:00
Dan Gohman
5ed3cbb753 Fix the InsertBranch call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55192 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 19:26:10 +00:00
Dan Gohman
e0182ec0e4 Support non-fallthrough unconditional branches in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55191 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 19:21:41 +00:00
Dan Gohman
3b7753be2e Add FastISel support for PHINodes. Machine PHI nodes 
are not yet updated properly, but that's a separate
task.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55187 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 17:37:48 +00:00
Dan Gohman
22bb31103d Factor out the predicate check code from DAGISelEmitter.cpp 
and use it in FastISelEmitter.cpp, and make FastISel
subtarget aware. Among other things, this lets it work
properly on x86 targets that don't have SSE, where it
successfully selects x87 instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55156 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-22 00:20:26 +00:00
Dan Gohman
f93cf79505 Have FastISel skip the multiply by 1 for getelementptr on i8*. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55129 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 17:37:05 +00:00
Dan Gohman
7a0e6593d0 MVT::getMVT uses iPTR for pointer types, while we need the actual 
intptr_t type in this case. FastISel can now select simple
getelementptr instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55125 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 17:25:26 +00:00
Dan Gohman
d5fe57d2f9 Basic fast-isel support for instructions with constant int operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55099 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 01:41:07 +00:00
Evan Cheng
2076aa800e Type of first GEP operand is always the same as the target pointer type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-21 01:19:11 +00:00
Dan Gohman
fd903944de Fix unused variable warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55089 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 23:53:10 +00:00
Evan Cheng
83785c8096 First cut, un-optimized (and untested) fast isel lowering of GetElementPtrInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 22:45:34 +00:00
Dan Gohman
f990b571c5 Simplify the BuildMI calls even more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55077 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 21:10:53 +00:00
Dan Gohman
bb466331e7 Simplify FastISel's constructor argument list, make the FastISel 
class hold a MachineRegisterInfo member, and make the
MachineBasicBlock be passed in to SelectInstructions rather
than the FastISel constructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55076 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 21:05:57 +00:00
Dan Gohman
cb34cd7b5e Make more use of the BuildMI API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55072 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:16:32 +00:00
Dan Gohman
4cbe0662ab Minor code reorganization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55071 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:10:48 +00:00
Dan Gohman
77ad79689d Minor whitespace cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55070 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:09:38 +00:00
Dan Gohman
b7864a9e23 Fix 80 column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55069 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 18:09:02 +00:00
Dan Gohman
e6798b757a Fix FastISel to recognize that the last block in the function does 
not have a fall-through successor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55033 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 01:17:01 +00:00
Dan Gohman
a7f2dff98e Fix FastISel to recognize unhandled operands, such as constants 
that aren't available as virtual registers (for now).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:35:17 +00:00
Dan Gohman
8014e86580 Add FastISel support for floating-point operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55021 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:23:20 +00:00
Dan Gohman
bdedd44773 Add FastISel support for several more binary operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55020 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-20 00:11:48 +00:00
Dan Gohman
6f2766d597 Support unconditional fall-through branches in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55014 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 22:31:46 +00:00
Dan Gohman
8133a52eb5 Use the BuildMI overload that sets up a destination register 
instead of the one that doesn't and then adding it manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55006 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 20:46:54 +00:00
Dan Gohman
32155acb8a Handle the case where target-specific fastisel code doesn't have 
a desired opcode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55005 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-19 20:43:22 +00:00
Dan Gohman
e285a74f7c Make FastISel's constructor protected, and give it a destructor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54793 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-14 21:51:29 +00:00
Dan Gohman
b0cf29c5cf Initial checkin of the new "fast" instruction selection support. See 
the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54751 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-13 20:19:35 +00:00