Nate Begeman
e74a2db0f0
*** empty log message ***
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llvm-svn: 25879
2006-02-01 19:05:15 +00:00
Nate Begeman
0be60963bd
Fix some of the stuff in the PPC README file, and clean up legalization
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of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.
llvm-svn: 25875
2006-02-01 07:19:44 +00:00
Evan Cheng
80944be4e7
Allow custom lowering of fabs. I forgot to check in this change which
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caused several test failures.
llvm-svn: 25852
2006-01-31 18:14:25 +00:00
Chris Lattner
d33e8efd56
Only insert an AND when converting from BR_COND to BRCC if needed.
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llvm-svn: 25832
2006-01-31 05:04:52 +00:00
Chris Lattner
e24c6ef1f9
Fix a bug in my legalizer reworking that caused the X86 backend to not get
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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
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of lowered target nodes.
llvm-svn: 25804
2006-01-30 04:22:28 +00:00
Chris Lattner
414a73d6f6
Fix RET of promoted values on targets that custom expand RET to a target node.
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llvm-svn: 25794
2006-01-29 21:02:23 +00:00
Chris Lattner
497157db4d
cleanups to the ValueTypeActions interface
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llvm-svn: 25785
2006-01-29 08:42:06 +00:00
Chris Lattner
3cddcf86e0
Remove some special case hacks for CALLSEQ_*, using UpdateNodeOperands
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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.
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llvm-svn: 25774
2006-01-29 06:34:16 +00:00
Chris Lattner
3f97b9cfa3
Legalize ConstantFP into TargetConstantFP when the target allows. Implement
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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
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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
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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
99bdf26410
minor tweaks
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llvm-svn: 25740
2006-01-28 08:31:04 +00:00
Chris Lattner
94ab3cee71
move a bunch of code, no other change.
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llvm-svn: 25739
2006-01-28 08:25:58 +00:00
Chris Lattner
9633d61b5b
remove a couple more now-extraneous legalizeop's
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llvm-svn: 25738
2006-01-28 08:22:56 +00:00
Chris Lattner
4bc3abc3d0
fix a bug
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llvm-svn: 25737
2006-01-28 07:42:08 +00:00
Chris Lattner
8eed1b6bda
Several major changes:
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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
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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
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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
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a libcall.
llvm-svn: 25730
2006-01-28 04:23:12 +00:00
Nate Begeman
87c2c0e66b
Implement Promote for VAARG, and allow it to be custom promoted for people
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who don't want the default behavior (Alpha).
llvm-svn: 25726
2006-01-28 03:14:31 +00:00
Chris Lattner
e7428f436a
Remove the ISD::CALL and ISD::TAILCALL nodes
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llvm-svn: 25721
2006-01-28 00:18:58 +00:00
Chris Lattner
b2771c7fcb
initial selectiondag support for new INLINEASM node. Note that inline asms
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with outputs or inputs are not supported yet. :)
llvm-svn: 25664
2006-01-26 22:24:51 +00:00
Nate Begeman
c29fac7fce
First part of bug 680:
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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
Chris Lattner
cfb7a75ce9
Fix an infinite loop I caused by making sure to legalize the flag operand
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of CALLSEQ_* nodes
llvm-svn: 25582
2006-01-24 05:48:21 +00:00
Chris Lattner
3b0a29a694
Fix Regression/CodeGen/SparcV8/2006-01-22-BitConvertLegalize.ll by making
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sure that the result of expanding a BIT_CONVERT node is itself legalized.
llvm-svn: 25538
2006-01-23 07:30:46 +00:00
Chris Lattner
9f233fa260
Fix CodeGen/PowerPC/2006-01-20-ShiftPartsCrash.ll
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llvm-svn: 25496
2006-01-21 04:27:00 +00:00
Chris Lattner
a348dc9195
remove some unintentionally committed code
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llvm-svn: 25483
2006-01-20 18:40:10 +00:00
Chris Lattner
737a8dab41
If the target doesn't support f32 natively, insert the FP_EXTEND in target-indep
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code, so that the LowerReturn code doesn't have to handle it.
llvm-svn: 25482
2006-01-20 18:38:32 +00:00
Evan Cheng
3f6b496700
Another typo
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llvm-svn: 25440
2006-01-19 04:54:52 +00:00
Andrew Lenharth
c7a7422412
was ignoring the legalized chain in this case, fixed SPASS on alpha
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llvm-svn: 25428
2006-01-18 23:19:08 +00:00
Evan Cheng
b456305355
Bug fix: missing LegalizeOp() on newly created nodes.
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llvm-svn: 25401
2006-01-17 19:47:13 +00:00
Jim Laskey
0c4202b0ba
Adding basic support for Dwarf line number debug information.
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I promise to keep future commits smaller.
llvm-svn: 25396
2006-01-17 17:31:53 +00:00
Nate Begeman
61d6a364ed
Expand case for 64b Legalize, even though no one should end up using this
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(itanium supports bswap natively, alpha should custom lower it using the
VAX floating point swapload, ha ha).
llvm-svn: 25356
2006-01-16 07:59:13 +00:00
Chris Lattner
4b3181512b
Allow the target to specify 'expand' if they just require the amount to
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be subtracted from the stack pointer.
llvm-svn: 25331
2006-01-15 08:54:32 +00:00
Chris Lattner
acf02c3510
Fix custom lowering of dynamic_stackalloc
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llvm-svn: 25329
2006-01-15 08:43:08 +00:00
Chris Lattner
e92e4a4342
Token chain results are not always the first or last result. Consider copyfromreg nodes, where they are the middle result (the flag result is last)
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llvm-svn: 25325
2006-01-14 22:41:46 +00:00
Nate Begeman
85b2dc0c4e
bswap implementation
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llvm-svn: 25312
2006-01-14 03:14:10 +00:00
Chris Lattner
91b83a2448
If a target specified a stack pointer with setStackPointerRegisterToSaveRestore,
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lower STACKSAVE/STACKRESTORE into a copy from/to that register.
llvm-svn: 25276
2006-01-13 17:48:44 +00:00
Chris Lattner
4107b4d7ee
Compile llvm.stacksave/restore into STACKSAVE/STACKRESTORE nodes, and allow
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targets to custom expand them as they desire.
llvm-svn: 25273
2006-01-13 02:50:02 +00:00
Evan Cheng
c2241561ae
Allow custom lowering of DYNAMIC_STACKALLOC.
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llvm-svn: 25224
2006-01-11 22:14:47 +00:00
Nate Begeman
cff96008ac
Add bswap, rotl, and rotr nodes
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Add dag combiner code to recognize rotl, rotr
Add ppc code to match rotl
Targets should add rotl/rotr patterns if they have them
llvm-svn: 25222
2006-01-11 21:21:00 +00:00
Chris Lattner
da0089a5c7
silence a warning
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llvm-svn: 25184
2006-01-10 19:43:26 +00:00
Chris Lattner
8026872e44
Fix an exponential function in libcall insertion to not be exponential. :)
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llvm-svn: 25165
2006-01-09 23:21:49 +00:00
Evan Cheng
a8064e0723
* Allow custom lowering of ADD_PARTS, SUB_PARTS, SHL_PARTS, SRA_PARTS,
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and SRL_PARTS.
* Fix a bug that caused *_PARTS to be custom lowered twice.
llvm-svn: 25157
2006-01-09 18:31:59 +00:00
Chris Lattner
ae1bace70a
Unbreak the build :(
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llvm-svn: 25124
2006-01-06 05:47:48 +00:00
Evan Cheng
133170cb5c
Support for custom lowering of ISD::RET.
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llvm-svn: 25116
2006-01-06 00:41:43 +00:00
Jim Laskey
5eddaee9f3
Added initial support for DEBUG_LABEL allowing debug specific labels to be
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inserted in the code.
llvm-svn: 25104
2006-01-05 01:25:28 +00:00
Jim Laskey
61138e28ff
Applied some recommend changes from sabre. The dominate one beginning "let the
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pass manager do it's thing." Fixes crash when compiling -g files and suppresses
dwarf statements if no debug info is present.
llvm-svn: 25100
2006-01-04 22:28:25 +00:00