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2141 Commits

Author SHA1 Message Date
Chris Lattner
ce37ba3417 Print the most trivial inline asms. 
llvm-svn: 25822
 2006-01-30 23:00:08 +00:00
Chris Lattner
e24c6ef1f9 Fix a bug in my legalizer reworking that caused the X86 backend to not get 
a chance to custom legalize setcc, which broke a bunch of C++ Codes.
Testcase here: CodeGen/X86/2006-01-30-LongSetcc.ll

llvm-svn: 25821
 2006-01-30 22:43:50 +00:00
Chris Lattner
4ba0e38a7a don't insert an and node if it isn't needed here, this can prevent folding 
of lowered target nodes.

llvm-svn: 25804
 2006-01-30 04:22:28 +00:00
Chris Lattner
a44182300b Move MaskedValueIsZero from the DAGCombiner to the TargetLowering interface,making isMaskedValueZeroForTargetNode simpler, and useable from other partsof the compiler. 
llvm-svn: 25803
 2006-01-30 04:09:27 +00:00
Chris Lattner
26589d32e6 pass the address of MaskedValueIsZero into isMaskedValueZeroForTargetNode, 
to permit recursion

llvm-svn: 25799
 2006-01-30 03:49:37 +00:00
Chris Lattner
414a73d6f6 Fix RET of promoted values on targets that custom expand RET to a target node. 
llvm-svn: 25794
 2006-01-29 21:02:23 +00:00
Chris Lattner
497157db4d cleanups to the ValueTypeActions interface 
llvm-svn: 25785
 2006-01-29 08:42:06 +00:00
Chris Lattner
3cddcf86e0 Remove some special case hacks for CALLSEQ_*, using UpdateNodeOperands 
instead.

llvm-svn: 25780
 2006-01-29 07:58:15 +00:00
Chris Lattner
94e9677374 Allow custom expansion of ConstantVec nodes. PPC will use this in the future. 
llvm-svn: 25774
 2006-01-29 06:34:16 +00:00
Chris Lattner
3f97b9cfa3 Legalize ConstantFP into TargetConstantFP when the target allows. Implement 
custom expansion of ConstantFP nodes.

llvm-svn: 25772
 2006-01-29 06:26:56 +00:00
Chris Lattner
82b23c2f5c eliminate uses of SelectionDAG::getBR2Way_CC 
llvm-svn: 25767
 2006-01-29 06:00:45 +00:00
Chris Lattner
40973347bf Use the new "UpdateNodeOperands" method to simplify LegalizeDAG and make it 
faster.  This cuts about 120 lines of code out of the legalizer (mostly code
checking to see if operands have changed).

It also fixes an ugly performance issue, where the legalizer cloned the entire
graph after any change.  Now the "UpdateNodeOperands" method gives it a chance
to reuse nodes if the operands of a node change but not its opcode or valuetypes.

This speeds up instruction selection time on kimwitu++ by about 8.2% with a
release build.

llvm-svn: 25746
 2006-01-28 10:58:55 +00:00
Chris Lattner
8768eb7532 add another method variant 
llvm-svn: 25744
 2006-01-28 10:09:25 +00:00
Chris Lattner
63f7e84632 add some methods for updating nodes 
llvm-svn: 25742
 2006-01-28 09:32:45 +00:00
Chris Lattner
99bdf26410 minor tweaks 
llvm-svn: 25740
 2006-01-28 08:31:04 +00:00
Chris Lattner
94ab3cee71 move a bunch of code, no other change. 
llvm-svn: 25739
 2006-01-28 08:25:58 +00:00
Chris Lattner
9633d61b5b remove a couple more now-extraneous legalizeop's 
llvm-svn: 25738
 2006-01-28 08:22:56 +00:00
Chris Lattner
4bc3abc3d0 fix a bug 
llvm-svn: 25737
 2006-01-28 07:42:08 +00:00
Chris Lattner
8eed1b6bda Several major changes: 
1. Pull out the expand cases for BSWAP and CT* into a separate function,
   reducing the size of LegalizeOp.
2. Fix a bug where expand(bswap i64) was wrong when i64 is legal.
3. Changed LegalizeOp/PromoteOp so that the legalizer never needs to be
   iterative.  It now operates in a single pass over the nodes.
4. Simplify a LOT of code, with a net reduction of ~280 lines.

llvm-svn: 25736
 2006-01-28 07:39:30 +00:00
Chris Lattner
84086fd689 Eliminate the need for ExpandOp to set 'needsanotheriteration', as it already 
relegalizes the stuff it returns.

Add the ability to custom expand ADD/SUB, so that targets don't need to deal
with ADD_PARTS/SUB_PARTS if they don't want.

Fix some obscure potential bugs and simplify code.

llvm-svn: 25732
 2006-01-28 05:07:51 +00:00
Chris Lattner
3b5a984065 Instead of making callers of ExpandLibCall legalize the result, make 
ExpandLibCall do it itself.

llvm-svn: 25731
 2006-01-28 04:28:26 +00:00
Chris Lattner
045a778e63 Eliminate the need to do another iteration of the legalizer after inserting 
a libcall.

llvm-svn: 25730
 2006-01-28 04:23:12 +00:00
Chris Lattner
d6d4bcc419 remove method I just added 
llvm-svn: 25728
 2006-01-28 03:43:09 +00:00
Chris Lattner
063c13029b add a new callback 
llvm-svn: 25727
 2006-01-28 03:37:03 +00:00
Nate Begeman
87c2c0e66b Implement Promote for VAARG, and allow it to be custom promoted for people 
who don't want the default behavior (Alpha).

llvm-svn: 25726
 2006-01-28 03:14:31 +00:00
Nate Begeman
dc3fba6b6b Add a missing case to the dag combiner. 
llvm-svn: 25723
 2006-01-28 01:06:30 +00:00
Chris Lattner
e7428f436a Remove the ISD::CALL and ISD::TAILCALL nodes 
llvm-svn: 25721
 2006-01-28 00:18:58 +00:00
Nate Begeman
d2c6fbef4a Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for 
the same functionality.  This addresses another piece of bug 680.  Next,
on to fixing Alpha VAARG, which I broke last time.

llvm-svn: 25696
 2006-01-27 21:09:22 +00:00
Jim Laskey
c8759505c4 Using bit size of integers instead of ambiguous "long" et all. 
llvm-svn: 25694
 2006-01-27 20:31:25 +00:00
Jim Laskey
2221ac79d5 Sorry - really folowing convention. 
llvm-svn: 25691
 2006-01-27 18:32:41 +00:00
Jim Laskey
479abc37ff Following convention. 
llvm-svn: 25689
 2006-01-27 18:28:31 +00:00
Andrew Lenharth
67e53709df fix build 
llvm-svn: 25687
 2006-01-27 18:16:17 +00:00
Chris Lattner
e4128dc8dc Fix build error that is apparently only a warning with some compilers. 
llvm-svn: 25686
 2006-01-27 17:31:30 +00:00
Jim Laskey
5ed7bc82cc Forgot the version number. 
llvm-svn: 25685
 2006-01-27 15:46:54 +00:00
Jim Laskey
89492c12bb Improve visibility/correctness of operand indices in "llvm.db" objects. 
Handle 64 in DIEs.

llvm-svn: 25684
 2006-01-27 15:20:54 +00:00
Chris Lattner
09d8aa244e Stub out a method 
llvm-svn: 25676
 2006-01-27 02:10:10 +00:00
Chris Lattner
a1769576f0 Teach the scheduler to emit the appropriate INLINEASM MachineInstr for an 
ISD::INLINEASM node.

llvm-svn: 25668
 2006-01-26 23:28:04 +00:00
Chris Lattner
b2771c7fcb initial selectiondag support for new INLINEASM node. Note that inline asms 
with outputs or inputs are not supported yet. :)

llvm-svn: 25664
 2006-01-26 22:24:51 +00:00
Jim Laskey
df47d0df3e Use global information to fill out Dwarf compile units. 
llvm-svn: 25662
 2006-01-26 21:22:49 +00:00
Jim Laskey
583aae3110 Set up MachineDebugInfo to scan for debug information form "llvm.db"g globals. 
Global Variable information is now pulled from "llvm.dbg.globals"

llvm-svn: 25655
 2006-01-26 20:21:46 +00:00
Evan Cheng
fcd2a73349 Clean up some code; improve efficiency; and fixed a potential bug involving 
chain successors.

llvm-svn: 25630
 2006-01-26 00:30:29 +00:00
Reid Spencer
f45272f413 Don't break the optimized build (by incorrect placement of #endif) 
llvm-svn: 25613
 2006-01-25 21:49:13 +00:00
Evan Cheng
168b8c5b29 No need to keep track of top and bottom nodes in a group since the vector is 
already in order. Thanks Jim for pointing it out.

llvm-svn: 25608
 2006-01-25 18:54:24 +00:00
Nate Begeman
c29fac7fce First part of bug 680: 
Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same
way as everything else.

llvm-svn: 25606
 2006-01-25 18:21:52 +00:00
Jeff Cohen
fdbce069c5 Make it even more portable. 
llvm-svn: 25605
 2006-01-25 17:18:50 +00:00
Jeff Cohen
7d0e421a42 Fix VC++ compilation error. 
llvm-svn: 25604
 2006-01-25 17:17:49 +00:00
Evan Cheng
0296933dbe Bottom up register usage reducing list scheduler. 
llvm-svn: 25601
 2006-01-25 09:14:32 +00:00
Evan Cheng
d95c4530e7 Keep track of bottom / top element of a set of flagged nodes. 
llvm-svn: 25600
 2006-01-25 09:13:41 +00:00
Evan Cheng
69d30b1c55 If scheduler choice is the default (-sched=default), use target scheduling 
preference to determine which scheduler to use. SchedulingForLatency ==
Breadth first; SchedulingForRegPressure == bottom up register reduction list
scheduler.

llvm-svn: 25599
 2006-01-25 09:12:57 +00:00
Jeff Cohen
3218a69301 Portably cast a pointer to an integer. 
llvm-svn: 25594
 2006-01-25 02:40:10 +00:00