Chris Lattner
c7029805ef
Change the structure of lowering vector stuff. Note: This breaks some
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things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26840 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-18 01:44:44 +00:00
Nate Begeman
81e8097377
Remove BRTWOWAY*
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Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26814 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-17 01:40:33 +00:00
Chris Lattner
06ac6ab938
Add a note, this code should be moved to the dag combiner.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26787 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-15 22:19:18 +00:00
Chris Lattner
8f4191d619
For targets with FABS/FNEG support, lower copysign to an integer load,
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a select and FABS/FNEG.
This speeds up a trivial (aka stupid) copysign benchmark I wrote from 6.73s
to 2.64s, woo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26723 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-13 06:08:38 +00:00
Chris Lattner
6b24af87e6
revert the previous patch, didn't mean to check it in yet
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26610 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:39:05 +00:00
Chris Lattner
5874f82564
remove "Slot", it is dead
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26609 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-08 04:37:58 +00:00
Chris Lattner
a09f848c11
Codegen copysign[f] into a FCOPYSIGN node
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26542 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 05:09:38 +00:00
Evan Cheng
3e1ce5a44d
Add more vector NodeTypes: VSDIV, VUDIV, VAND, VOR, and VXOR.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26504 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 07:01:07 +00:00
Chris Lattner
41edaa0529
remove the read/write port/io intrinsics.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26479 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-03 00:19:58 +00:00
Evan Cheng
860771d2d8
Vector ops lowering.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26436 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-01 01:09:54 +00:00
Chris Lattner
dca7abed91
Fix a problem on itanium with memset. The value to set has been promoted to
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i64 before this code, so zero_ext doesn't work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26290 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-20 06:38:35 +00:00
Nate Begeman
551bf3f800
kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBC
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and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26255 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 05:43:56 +00:00
Chris Lattner
25125697fb
Fix another miscompilation exposed by lencode, where we lowered i64->f32
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conversions to __floatdidf instead of __floatdisf on targets that support
f32 but not i64 (e.g. sparc).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26254 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-17 04:32:33 +00:00
Jim Laskey
d0e58e36a9
Should not combine ISD::LOCATIONs until we have scheme to remove from
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MachineDebugInfo tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26216 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-15 19:34:44 +00:00
Chris Lattner
4b653a0405
Fix a latent bug in the call sequence handling stuff. Some targets (e.g. x86)
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create these nodes with flag results. Remember that we legalized them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26156 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-14 00:55:02 +00:00
Chris Lattner
6831a81599
Completely rewrite libcall insertion by the legalizer, providing the
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following handy-dandy properties:
1. it is always correct now
2. it is much faster than before
3. it is easier to understand
This implementation builds off of the recent simplifications of the
legalizer that made it single-pass instead of iterative.
This fixes JM/lencod, JM/ldecod, and
CodeGen/Generic/2006-02-12-InsertLibcall.ll (at least on PPC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26144 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-13 09:18:02 +00:00
Nate Begeman
da06e9e665
*** empty log message ***
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25879 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 19:05:15 +00:00
Nate Begeman
750ac1bdfa
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25875 91177308-0d34-0410-b5e6-96231b3b80d8
2006-02-01 07:19:44 +00:00
Evan Cheng
59ad781e01
Allow custom lowering of fabs. I forgot to check in this change which
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caused several test failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25852 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 18:14:25 +00:00
Chris Lattner
19c5c4cca9
Only insert an AND when converting from BR_COND to BRCC if needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25832 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-31 05:04:52 +00:00
Chris Lattner
73e142f2b6
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25821 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 22:43:50 +00:00
Chris Lattner
0e753d617b
don't insert an and node if it isn't needed here, this can prevent folding
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of lowered target nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25804 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-30 04:22:28 +00:00
Chris Lattner
6862dbc446
Fix RET of promoted values on targets that custom expand RET to a target node.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25794 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 21:02:23 +00:00
Chris Lattner
68a17febc7
cleanups to the ValueTypeActions interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25785 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 08:42:06 +00:00
Chris Lattner
70814bc384
Remove some special case hacks for CALLSEQ_*, using UpdateNodeOperands
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instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25780 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 07:58:15 +00:00
Chris Lattner
8ca05e0c30
Allow custom expansion of ConstantVec nodes. PPC will use this in the future.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25774 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:34:16 +00:00
Chris Lattner
3181a771ff
Legalize ConstantFP into TargetConstantFP when the target allows. Implement
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custom expansion of ConstantFP nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25772 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:26:56 +00:00
Chris Lattner
03d5e877fd
eliminate uses of SelectionDAG::getBR2Way_CC
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25767 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-29 06:00:45 +00:00
Chris Lattner
c52ad4f04e
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25746 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 10:58:55 +00:00
Chris Lattner
948c1b1cda
minor tweaks
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25740 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 08:31:04 +00:00
Chris Lattner
22cde6a518
move a bunch of code, no other change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25739 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 08:25:58 +00:00
Chris Lattner
7cd2997a83
remove a couple more now-extraneous legalizeop's
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25738 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 08:22:56 +00:00
Chris Lattner
5c62f337fe
fix a bug
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25737 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 07:42:08 +00:00
Chris Lattner
456a93afce
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25736 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 07:39:30 +00:00
Chris Lattner
8137c9e41d
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25732 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 05:07:51 +00:00
Chris Lattner
9c6b4b8c3a
Instead of making callers of ExpandLibCall legalize the result, make
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ExpandLibCall do it itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25731 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 04:28:26 +00:00
Chris Lattner
0e8ea71a4f
Eliminate the need to do another iteration of the legalizer after inserting
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a libcall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25730 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 04:23:12 +00:00
Nate Begeman
0aed7840ec
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25726 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 03:14:31 +00:00
Chris Lattner
0ff5c27a00
Remove the ISD::CALL and ISD::TAILCALL nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25721 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-28 00:18:58 +00:00
Chris Lattner
ce7518ce92
initial selectiondag support for new INLINEASM node. Note that inline asms
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with outputs or inputs are not supported yet. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25664 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-26 22:24:51 +00:00
Nate Begeman
acc398c195
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25606 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-25 18:21:52 +00:00
Chris Lattner
6a5428934b
Fix an infinite loop I caused by making sure to legalize the flag operand
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of CALLSEQ_* nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25582 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-24 05:48:21 +00:00
Chris Lattner
67993f7b97
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25538 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-23 07:30:46 +00:00
Chris Lattner
348e93c8f7
Fix CodeGen/PowerPC/2006-01-20-ShiftPartsCrash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25496 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-21 04:27:00 +00:00
Chris Lattner
a68d204843
remove some unintentionally committed code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25483 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20 18:40:10 +00:00
Chris Lattner
4eebb60f84
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25482 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-20 18:38:32 +00:00
Evan Cheng
12f2274ba8
Another typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25440 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-19 04:54:52 +00:00
Andrew Lenharth
8ff318b7fb
was ignoring the legalized chain in this case, fixed SPASS on alpha
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25428 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-18 23:19:08 +00:00
Evan Cheng
433f8acefb
Bug fix: missing LegalizeOp() on newly created nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25401 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-17 19:47:13 +00:00
Jim Laskey
063e765345
Adding basic support for Dwarf line number debug information.
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I promise to keep future commits smaller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25396 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-17 17:31:53 +00:00
Nate Begeman
c02d98e335
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25356 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-16 07:59:13 +00:00
Chris Lattner
903d278a9b
Allow the target to specify 'expand' if they just require the amount to
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be subtracted from the stack pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25331 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-15 08:54:32 +00:00
Chris Lattner
5f652295c2
Fix custom lowering of dynamic_stackalloc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25329 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-15 08:43:08 +00:00
Chris Lattner
c0ab5226cc
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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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25325 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-14 22:41:46 +00:00
Nate Begeman
d88fc03602
bswap implementation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25312 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-14 03:14:10 +00:00
Chris Lattner
4f0d8e4018
If a target specified a stack pointer with setStackPointerRegisterToSaveRestore,
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lower STACKSAVE/STACKRESTORE into a copy from/to that register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25276 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-13 17:48:44 +00:00
Chris Lattner
140d53c99c
Compile llvm.stacksave/restore into STACKSAVE/STACKRESTORE nodes, and allow
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targets to custom expand them as they desire.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25273 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-13 02:50:02 +00:00
Evan Cheng
a7dce3c6c2
Allow custom lowering of DYNAMIC_STACKALLOC.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25224 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-11 22:14:47 +00:00
Nate Begeman
35ef913ec2
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25222 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-11 21:21:00 +00:00
Chris Lattner
269f8c0691
silence a warning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25184 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-10 19:43:26 +00:00
Chris Lattner
de387ce810
Fix an exponential function in libcall insertion to not be exponential. :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25165 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-09 23:21:49 +00:00
Evan Cheng
05a2d568c6
* 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25157 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-09 18:31:59 +00:00
Chris Lattner
47f5beaaaf
Unbreak the build :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25124 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-06 05:47:48 +00:00
Evan Cheng
17c428e23d
Support for custom lowering of ISD::RET.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25116 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-06 00:41:43 +00:00
Jim Laskey
abf6d1784b
Added initial support for DEBUG_LABEL allowing debug specific labels to be
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inserted in the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25104 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-05 01:25:28 +00:00
Jim Laskey
b2efb853f0
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25100 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-04 22:28:25 +00:00
Jim Laskey
5bf6f25b4a
Add unique id to debug location for debug label use (work in progress.)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25096 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-04 15:04:11 +00:00
Jim Laskey
7ca9ab3f5c
Change how MachineDebugInfo is fetched.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25089 91177308-0d34-0410-b5e6-96231b3b80d8
2006-01-04 13:42:59 +00:00
Andrew Lenharth
57030e36e4
allow custom lowering to return null for legal results
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25007 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-25 01:07:37 +00:00
Andrew Lenharth
e8f65f1e62
Support Custom lowering of a few more operations.
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Alpha needs to custom lower *DIV and *REM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25006 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-24 23:42:32 +00:00
Chris Lattner
c26f7a033f
unbreak the build :-/
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24992 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23 16:12:20 +00:00
Evan Cheng
f3fd9fe20d
Allow custom lowering of LOAD, EXTLOAD, ZEXTLOAD, STORE, and TRUNCSTORE. Not
...
currently used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24988 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23 07:29:34 +00:00
Chris Lattner
232348d66f
Fix a pasto
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24973 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23 00:52:30 +00:00
Chris Lattner
ed7b5babfb
fix a thinko in the bit_convert handling code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24972 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23 00:50:25 +00:00
Chris Lattner
35481892da
add very simple support for the BIT_CONVERT node
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24970 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-23 00:16:34 +00:00
Chris Lattner
0fcd40f501
remove dead code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24965 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22 21:16:08 +00:00
Chris Lattner
1ccf26a639
The 81st column doesn't like code in it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24943 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-22 05:23:45 +00:00
Jim Laskey
e81aecbae6
Disengage DEBUG_LOC from non-PPC targets.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24919 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21 20:51:37 +00:00
Evan Cheng
d5781fca4f
* Added support for X86 RET with an additional operand to specify number of
...
bytes to pop off stack.
* Added support for X86 SETCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24917 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21 20:21:51 +00:00
Chris Lattner
f9dee6a047
make sure to relegalize all cases
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24911 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21 19:40:42 +00:00
Chris Lattner
8339736334
fix a bug I introduced that broke recursive expansion of nodes (e.g. scalarizing vectors)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24905 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-21 18:02:52 +00:00
Chris Lattner
69a889eb35
Fix a nasty latent bug in the legalizer that was triggered by my patch
...
last night, breaking crafty and twolf. Make sure that the newly found
legal nodes are themselves not re-legalized until the next iteration.
Also, since this functionality exists now, we can reduce number of legalizer
iterations by depending on this behavior instead of having to misuse 'do
another iteration' to get the same effect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24875 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-20 00:53:54 +00:00
Evan Cheng
898101c15f
X86 conditional branch support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24870 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-19 23:12:38 +00:00
Chris Lattner
e773673d8e
Make sure to relegalize new nodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24843 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18 23:54:29 +00:00
Chris Lattner
f1a47c3371
More corrections for flagged copyto/from reg
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24828 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18 15:36:21 +00:00
Chris Lattner
7310fb11f2
legalize copytoreg and copyfromreg nodes that have flag operands correctly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24826 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-18 15:27:43 +00:00
Chris Lattner
181b7a382f
allow custom expansion of BR_CC
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24804 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-17 23:46:46 +00:00
Evan Cheng
7df96d6672
X86 lowers SELECT to a cmp / test followed by a conditional move.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24754 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-17 01:21:05 +00:00
Jim Laskey
f5395cee6a
Added source file/line correspondence for dwarf (PowerPC only at this point.)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24748 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-16 22:45:29 +00:00
Nate Begeman
d7d746f603
Lowering constant pool entries on ppc exposed a bug in the recently added
...
ConstantVec legalizing code, which would return constantpool nodes that
were not of the target's pointer type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24691 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-13 03:03:23 +00:00
Chris Lattner
58f7963b8b
Fix CodeGen/Generic/2005-12-12-ExpandSextInreg.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24677 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-12 22:27:43 +00:00
Nate Begeman
28a6b02626
Add support for TargetConstantPool nodes to the dag isel emitter, and use
...
them in the PPC backend, to simplify some logic out of Select and
SelectAddr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24657 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-10 02:36:00 +00:00
Chris Lattner
5e3c5b4e13
Teach legalize how to promote sext_inreg to fix a problem Andrew pointed
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out to me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24644 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-09 17:32:47 +00:00
Nate Begeman
cc827e60b6
Fix a crash where ConstantVec nodes were being generated with the wrong
...
type when the target did not support them. Also teach Legalize how to
expand ConstantVecs.
This allows us to generate
_test:
lwz r2, 12(r3)
lwz r4, 8(r3)
lwz r5, 4(r3)
lwz r6, 0(r3)
addi r2, r2, 4
addi r4, r4, 3
addi r5, r5, 2
addi r6, r6, 1
stw r2, 12(r3)
stw r4, 8(r3)
stw r5, 4(r3)
stw r6, 0(r3)
blr
For:
void %test(%v4i *%P) {
%T = load %v4i* %P
%S = add %v4i %T, <int 1, int 2, int 3, int 4>
store %v4i %S, %v4i * %P
ret void
}
On PowerPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24633 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-07 19:48:11 +00:00
Nate Begeman
8cfa57b1b4
Teach the SelectionDAG ISel how to turn ConstantPacked values into
...
constant nodes with vector types. Also teach the asm printer how to print
ConstantPacked constant pool entries. This allows us to generate altivec
code such as the following, which adds a vector constantto a packed float.
LCPI1_0: <4 x float> < float 0.0e+0, float 0.0e+0, float 0.0e+0, float 1.0e+0 >
.space 4
.space 4
.space 4
.long 1065353216 ; float 1
.text
.align 4
.globl _foo
_foo:
lis r2, ha16(LCPI1_0)
la r2, lo16(LCPI1_0)(r2)
li r4, 0
lvx v0, r4, r2
lvx v1, r4, r3
vaddfp v0, v1, v0
stvx v0, r4, r3
blr
For the llvm code:
void %foo(<4 x float> * %a) {
entry:
%tmp1 = load <4 x float> * %a;
%tmp2 = add <4 x float> %tmp1, < float 0.0, float 0.0, float 0.0, float 1.0 >
store <4 x float> %tmp2, <4 x float> *%a
ret void
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24616 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-06 06:18:55 +00:00
Andrew Lenharth
cde0f5cfe7
bah, must generate all results
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24574 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-02 06:08:08 +00:00
Andrew Lenharth
49c709f891
cycle counter fix
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24573 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-02 04:56:24 +00:00
Chris Lattner
9ad17c9c9a
Promote line and column number information for our friendly 64-bit targets.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24568 91177308-0d34-0410-b5e6-96231b3b80d8
2005-12-01 18:21:35 +00:00
Andrew Lenharth
ae35575957
At long last, you can say that f32 isn't supported for setcc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24537 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 17:12:26 +00:00
Andrew Lenharth
5b5b8c2755
add support for custom lowering SINT_TO_FP
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24531 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-30 06:43:03 +00:00
Chris Lattner
36ce69195e
Add support for a new STRING and LOCATION node for line number support, patch
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contributed by Daniel Berlin, with a few cleanups here and there by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24515 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-29 06:21:05 +00:00
Nate Begeman
6a648614e8
Add the majority of the vector machien value types we expect to support,
...
and make a few changes to the legalization machinery to support more than
16 types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24511 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-29 05:45:29 +00:00
Nate Begeman
ab48be3772
Check in code to scalarize arbitrarily wide packed types for some simple
...
vector operations (load, add, sub, mul).
This allows us to codegen:
void %foo(<4 x float> * %a) {
entry:
%tmp1 = load <4 x float> * %a;
%tmp2 = add <4 x float> %tmp1, %tmp1
store <4 x float> %tmp2, <4 x float> *%a
ret void
}
on ppc as:
_foo:
lfs f0, 12(r3)
lfs f1, 8(r3)
lfs f2, 4(r3)
lfs f3, 0(r3)
fadds f0, f0, f0
fadds f1, f1, f1
fadds f2, f2, f2
fadds f3, f3, f3
stfs f0, 12(r3)
stfs f1, 8(r3)
stfs f2, 4(r3)
stfs f3, 0(r3)
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24484 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-22 18:16:00 +00:00
Nate Begeman
4ef3b817fe
Rather than attempting to legalize 1 x float, make sure the SD ISel never
...
generates it. Make MVT::Vector expand-only, and remove the code in
Legalize that attempts to legalize it.
The plan for supporting N x Type is to continually epxand it in ExpandOp
until it gets down to 2 x Type, where it will be scalarized into a pair of
scalars.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24482 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-22 01:29:36 +00:00
Chris Lattner
308575be66
Legalize MERGE_VALUES, expand READCYCLECOUNTER correctly, so it doesn't
...
break control dependence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24437 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 22:56:56 +00:00
Andrew Lenharth
f70e30b41d
The first patch of X86 support for read cycle counter
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24429 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-20 21:32:07 +00:00
Chris Lattner
b89175feff
Silence a bogus warning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24420 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 05:51:46 +00:00
Nate Begeman
5fbb5d2459
Teach LLVM how to scalarize packed types. Currently, this only works on
...
packed types with an element count of 1, although more generic support is
coming. This allows LLVM to turn the following code:
void %foo(<1 x float> * %a) {
entry:
%tmp1 = load <1 x float> * %a;
%tmp2 = add <1 x float> %tmp1, %tmp1
store <1 x float> %tmp2, <1 x float> *%a
ret void
}
Into:
_foo:
lfs f0, 0(r3)
fadds f0, f0, f0
stfs f0, 0(r3)
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24416 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-19 00:36:38 +00:00
Chris Lattner
0c8fbe33a4
Allow targets to custom legalize leaf nodes like GlobalAddress.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24387 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 06:41:44 +00:00
Chris Lattner
b9debbf54c
Teach legalize about targetglobaladdress
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24385 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-17 05:52:24 +00:00
Andrew Lenharth
51b8d54922
continued readcyclecounter support
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24300 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-11 16:47:30 +00:00
Chris Lattner
de202b3cda
Switch the allnodes list from a vector of pointers to an ilist of nodes.This eliminates the vector, allows constant time removal of a node froma graph, and makes iteration over the all nodes list stable when adding
...
nodes to the graph.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24263 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-09 23:47:37 +00:00
Chris Lattner
040c11c24e
Handle the trivial (but common) two-op case more efficiently
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24259 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-09 18:48:57 +00:00
Chris Lattner
0d902a9c74
Allocate the right amount of memory for this vector up front.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24252 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-08 23:32:44 +00:00
Nate Begeman
b7f6ef12f6
Allow custom lowered FP_TO_SINT ops in the check for whether a larger
...
FP_TO_SINT is preferred to a larger FP_TO_UINT. This seems to be begging
for a TLI.isOperationCustom() helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23992 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-25 23:47:25 +00:00
Nate Begeman
5dc897b0e4
Teach Legalize how to do something with EXTRACT_ELEMENT when the type of
...
the pair of elements is a legal type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23804 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 00:06:56 +00:00
Nate Begeman
419f8b62f7
Legalize BUILD_PAIR appropriately for upcoming 64 bit PowerPC work.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23776 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-18 00:27:41 +00:00
Chris Lattner
8136cdae60
Use getExtLoad here instead of getNode, as extloads produce two values. This
...
fixes a legalize failure on SPASS for itanium.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23747 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-15 20:24:07 +00:00
Nate Begeman
5054f16212
Relax the checking on zextload generation a bit, since as sabre pointed out
...
you could be AND'ing with the result of a shift that shifts out all the
bits you care about, in addition to a constant.
Also, move over an add/sub_parts fold from legalize to the dag combiner,
where it works for things other than constants. Woot!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23720 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 01:12:21 +00:00
Chris Lattner
9ad8481cfb
When ExpandOp'ing a [SZ]EXTLOAD, make sure to remember that the chain
...
is also legal. Add support for ExpandOp'ing raw EXTLOADs too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23716 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-13 21:44:47 +00:00
Chris Lattner
4c8f8f0481
Implement PromoteOp for *EXTLOAD, allowing MallocBench/gs to Legalize
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23715 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-13 20:07:41 +00:00
Nate Begeman
144ff660e6
Add support to Legalize for expanding i64 sextload/zextload into hi and lo
...
parts. This should fix the crafty and signed long long unit test failure
on x86 last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23711 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-13 17:15:37 +00:00
Nate Begeman
ded4963ab9
Move some Legalize functionality over to the DAGCombiner where it belongs.
...
Kill some dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23706 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-13 03:11:28 +00:00
Chris Lattner
cf5c79b34f
silence a bogus GCC warning
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23646 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-06 17:39:10 +00:00
Chris Lattner
32fca00a23
Make the legalizer completely non-recursive
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23642 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-06 01:20:27 +00:00
Nate Begeman
829cb81806
Remove some bad code from Legalize
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23640 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-05 21:44:10 +00:00
Nate Begeman
1aa1972c63
Fix some faulty logic in the libcall inserter.
...
Since calls return more than one value, don't bail if one of their uses
happens to be a node that's not an MVT::Other when following the chain
from CALLSEQ_START to CALLSEQ_END.
Once we've found a CALLSEQ_START, we can just return; there's no need to
tail-recurse further up the graph.
Most importantly, just because something only has one use doesn't mean we
should use it's one use to follow from start to end. This faulty logic
caused us to follow a chain of one-use FP operations back to a much earlier
call, putting a cycle in the graph from a later start to an earlier end.
This is a better fix that reverting to the workaround committed earlier
today.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23620 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-04 02:10:55 +00:00
Nate Begeman
27d404ccd1
Add back a workaround that fixes some breakages from chris's last change.
...
Neither of us have yet figured out why this code is necessary, but stuff
breaks if its not there. Still tracking this down...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23617 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-04 00:37:37 +00:00
Chris Lattner
ab510a76d6
Fix a problem where the legalizer would run out of stack space on extremely
...
large basic blocks because it was purely recursive. This switches it to an
iterative/recursive hybrid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23596 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-02 17:49:46 +00:00
Chris Lattner
473a99073c
Fix two bugs in my patch earlier today that broke int->fp conversion on X86.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23522 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 06:44:39 +00:00
Chris Lattner
01b3d73c20
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
...
Though I have done extensive testing, it is possible that this will break
things in configs I can't test. Please let me know if this causes a problem
and I'll fix it ASAP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23504 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:28:18 +00:00
Chris Lattner
13d58e71b7
Allow targets to say they don't support truncstore i1 (which includes a mask
...
when storing to an 8-bit memory location), as most don't.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23303 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-10 00:20:18 +00:00
Chris Lattner
6fdcb250d5
Clean up some code from the last checkin
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23229 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 20:32:45 +00:00
Chris Lattner
99c25b86aa
Fix a bug in legalize where it would emit two calls to libcalls that return
...
i64 values on targets that need that expanded to 32-bit registers. This fixes
PowerPC/2005-09-02-LegalizeDuplicatesCalls.ll and speeds up 189.lucas from
taking 122.72s to 81.96s on my desktop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23228 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 20:26:58 +00:00
Chris Lattner
08951a32fb
Make sure to legalize assert[zs]ext's operand correctly
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23208 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 01:15:01 +00:00
Chris Lattner
13c78e2e5f
legalize ANY_EXTEND appropriately
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23204 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 00:18:10 +00:00
Chris Lattner
50ec897904
Allow targets to custom expand shifts that are too large for their registers
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23173 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-31 19:01:53 +00:00
Chris Lattner
cc0675a4be
Fix FreeBench/fourinarow with the dag isel, by not adding a bogus result
...
to SHIFT_PARTS nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23151 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 17:21:17 +00:00
Chris Lattner
ec176e30d6
Fix a miscompile of PtrDist/bc. Sign extending bools is not the right thing,
...
at least tends to expose problems elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23149 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 16:56:19 +00:00
Nate Begeman
56eb86806d
Add support for AssertSext and AssertZext, folding other extensions with
...
them. This allows for elminination of redundant extends in the entry
blocks of functions on PowerPC.
Add support for i32 x i32 -> i64 multiplies, by recognizing when the inputs
to ISD::MUL in ExpandOp are actually just extended i32 values and not real
i64 values. this allows us to codegen
int mulhs(int a, int b) { return ((long long)a * b) >> 32; }
as:
_mulhs:
mulhw r3, r4, r3
blr
instead of:
_mulhs:
mulhwu r2, r4, r3
srawi r5, r3, 31
mullw r5, r4, r5
add r2, r2, r5
srawi r4, r4, 31
mullw r3, r4, r3
add r3, r2, r3
blr
with a similar improvement on x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23147 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-30 02:44:00 +00:00
Andrew Lenharth
5e3efbc2ca
Some of us cared about the the promote path
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23130 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 20:46:51 +00:00
Chris Lattner
507f752f6e
Fix an infinite loop on x86
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23129 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-29 17:30:00 +00:00
Chris Lattner
eb150d7d1f
Nate noticed that Andrew never did this. This fixes PR600
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23110 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 22:50:40 +00:00
Chris Lattner
5839bf2b3b
Change ConstantPoolSDNode to actually hold the Constant itself instead of
...
putting it into the constant pool. This allows the isel machinery to
create constants that it will end up deciding are not needed, without them
ending up in the resultant function constant pool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23081 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 17:15:30 +00:00
Chris Lattner
d7050a9c50
the 5th operand is the 4th number
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23074 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:43:46 +00:00
Chris Lattner
23004e5f21
Add support for targets that want to custom expand select_cc in some cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23071 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:23:59 +00:00
Chris Lattner
07dffd6af6
Allow LowerOperation to return a null SDOperand in case it wants to lower
...
some things given to it, but not all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23070 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-26 00:14:16 +00:00
Chris Lattner
c9c60f6429
Start using isOperationLegal and isTypeLegal to simplify the code
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23012 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 16:35:28 +00:00
Nate Begeman
b942a3dd5f
Teach Legalize how to turn setcc into select_cc
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22977 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-23 04:29:48 +00:00
Chris Lattner
550b1e59c4
When legalizing brcond ->brcc or select -> selectcc, make sure to truncate
...
the old condition to a one bit value. The incoming value must have been
promoted, and the top bits are undefined. This causes us to generate:
_test:
rlwinm r2, r3, 0, 31, 31
li r3, 17
cmpwi cr0, r2, 0
bne .LBB_test_2 ;
.LBB_test_1: ;
li r3, 1
.LBB_test_2: ;
blr
instead of:
_test:
rlwinm r2, r3, 0, 31, 31
li r2, 17
cmpwi cr0, r3, 0
bne .LBB_test_2 ;
.LBB_test_1: ;
li r2, 1
.LBB_test_2: ;
or r3, r2, r2
blr
for:
int %test(bool %c) {
%retval = select bool %c, int 17, int 1
ret int %retval
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22947 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-21 18:03:09 +00:00
Jim Laskey
cb6682fa44
Culling out use of unions for converting FP to bits and vice versa.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22838 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-17 19:34:49 +00:00
Jim Laskey
02659d2363
Switched to using BitsToDouble for int_to_float to avoid aliasing problem.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22831 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-17 17:42:52 +00:00
Jim Laskey
491dfa88e4
Change hex float constants for the sake of VC++.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22828 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-17 09:44:59 +00:00
Jim Laskey
6269ed125f
Added generic code expansion for [signed|unsigned] i32 to [f32|f64] casts in the
...
legalizer. PowerPC now uses this expansion instead of ISel version.
Example:
// signed integer to double conversion
double f1(signed x) {
return (double)x;
}
// unsigned integer to double conversion
double f2(unsigned x) {
return (double)x;
}
// signed integer to float conversion
float f3(signed x) {
return (float)x;
}
// unsigned integer to float conversion
float f4(unsigned x) {
return (float)x;
}
Byte Code:
internal fastcc double %_Z2f1i(int %x) {
entry:
%tmp.1 = cast int %x to double ; <double> [#uses=1]
ret double %tmp.1
}
internal fastcc double %_Z2f2j(uint %x) {
entry:
%tmp.1 = cast uint %x to double ; <double> [#uses=1]
ret double %tmp.1
}
internal fastcc float %_Z2f3i(int %x) {
entry:
%tmp.1 = cast int %x to float ; <float> [#uses=1]
ret float %tmp.1
}
internal fastcc float %_Z2f4j(uint %x) {
entry:
%tmp.1 = cast uint %x to float ; <float> [#uses=1]
ret float %tmp.1
}
internal fastcc double %_Z2g1i(int %x) {
entry:
%buffer = alloca [2 x uint] ; <[2 x uint]*> [#uses=3]
%tmp.0 = getelementptr [2 x uint]* %buffer, int 0, int 0 ; <uint*> [#uses=1]
store uint 1127219200, uint* %tmp.0
%tmp.2 = cast int %x to uint ; <uint> [#uses=1]
%tmp.3 = xor uint %tmp.2, 2147483648 ; <uint> [#uses=1]
%tmp.5 = getelementptr [2 x uint]* %buffer, int 0, int 1 ; <uint*> [#uses=1]
store uint %tmp.3, uint* %tmp.5
%tmp.9 = cast [2 x uint]* %buffer to double* ; <double*> [#uses=1]
%tmp.10 = load double* %tmp.9 ; <double> [#uses=1]
%tmp.13 = load double* cast (long* %signed_bias to double*) ; <double> [#uses=1]
%tmp.14 = sub double %tmp.10, %tmp.13 ; <double> [#uses=1]
ret double %tmp.14
}
internal fastcc double %_Z2g2j(uint %x) {
entry:
%buffer = alloca [2 x uint] ; <[2 x uint]*> [#uses=3]
%tmp.0 = getelementptr [2 x uint]* %buffer, int 0, int 0 ; <uint*> [#uses=1]
store uint 1127219200, uint* %tmp.0
%tmp.1 = getelementptr [2 x uint]* %buffer, int 0, int 1 ; <uint*> [#uses=1]
store uint %x, uint* %tmp.1
%tmp.4 = cast [2 x uint]* %buffer to double* ; <double*> [#uses=1]
%tmp.5 = load double* %tmp.4 ; <double> [#uses=1]
%tmp.8 = load double* cast (long* %unsigned_bias to double*) ; <double> [#uses=1]
%tmp.9 = sub double %tmp.5, %tmp.8 ; <double> [#uses=1]
ret double %tmp.9
}
internal fastcc float %_Z2g3i(int %x) {
entry:
%buffer = alloca [2 x uint] ; <[2 x uint]*> [#uses=3]
%tmp.0 = getelementptr [2 x uint]* %buffer, int 0, int 0 ; <uint*> [#uses=1]
store uint 1127219200, uint* %tmp.0
%tmp.2 = cast int %x to uint ; <uint> [#uses=1]
%tmp.3 = xor uint %tmp.2, 2147483648 ; <uint> [#uses=1]
%tmp.5 = getelementptr [2 x uint]* %buffer, int 0, int 1 ; <uint*> [#uses=1]
store uint %tmp.3, uint* %tmp.5
%tmp.9 = cast [2 x uint]* %buffer to double* ; <double*> [#uses=1]
%tmp.10 = load double* %tmp.9 ; <double> [#uses=1]
%tmp.13 = load double* cast (long* %signed_bias to double*) ; <double> [#uses=1]
%tmp.14 = sub double %tmp.10, %tmp.13 ; <double> [#uses=1]
%tmp.16 = cast double %tmp.14 to float ; <float> [#uses=1]
ret float %tmp.16
}
internal fastcc float %_Z2g4j(uint %x) {
entry:
%buffer = alloca [2 x uint] ; <[2 x uint]*> [#uses=3]
%tmp.0 = getelementptr [2 x uint]* %buffer, int 0, int 0 ; <uint*> [#uses=1]
store uint 1127219200, uint* %tmp.0
%tmp.1 = getelementptr [2 x uint]* %buffer, int 0, int 1 ; <uint*> [#uses=1]
store uint %x, uint* %tmp.1
%tmp.4 = cast [2 x uint]* %buffer to double* ; <double*> [#uses=1]
%tmp.5 = load double* %tmp.4 ; <double> [#uses=1]
%tmp.8 = load double* cast (long* %unsigned_bias to double*) ; <double> [#uses=1]
%tmp.9 = sub double %tmp.5, %tmp.8 ; <double> [#uses=1]
%tmp.11 = cast double %tmp.9 to float ; <float> [#uses=1]
ret float %tmp.11
}
PowerPC Code:
.machine ppc970
.const
.align 2
.CPIl1__Z2f1i_0: ; float 0x4330000080000000
.long 1501560836 ; float 4.5036e+15
.text
.align 2
.globl l1__Z2f1i
l1__Z2f1i:
.LBBl1__Z2f1i_0: ; entry
xoris r2, r3, 32768
stw r2, -4(r1)
lis r2, 17200
stw r2, -8(r1)
lfd f0, -8(r1)
lis r2, ha16(.CPIl1__Z2f1i_0)
lfs f1, lo16(.CPIl1__Z2f1i_0)(r2)
fsub f1, f0, f1
blr
.const
.align 2
.CPIl2__Z2f2j_0: ; float 0x4330000000000000
.long 1501560832 ; float 4.5036e+15
.text
.align 2
.globl l2__Z2f2j
l2__Z2f2j:
.LBBl2__Z2f2j_0: ; entry
stw r3, -4(r1)
lis r2, 17200
stw r2, -8(r1)
lfd f0, -8(r1)
lis r2, ha16(.CPIl2__Z2f2j_0)
lfs f1, lo16(.CPIl2__Z2f2j_0)(r2)
fsub f1, f0, f1
blr
.const
.align 2
.CPIl3__Z2f3i_0: ; float 0x4330000080000000
.long 1501560836 ; float 4.5036e+15
.text
.align 2
.globl l3__Z2f3i
l3__Z2f3i:
.LBBl3__Z2f3i_0: ; entry
xoris r2, r3, 32768
stw r2, -4(r1)
lis r2, 17200
stw r2, -8(r1)
lfd f0, -8(r1)
lis r2, ha16(.CPIl3__Z2f3i_0)
lfs f1, lo16(.CPIl3__Z2f3i_0)(r2)
fsub f0, f0, f1
frsp f1, f0
blr
.const
.align 2
.CPIl4__Z2f4j_0: ; float 0x4330000000000000
.long 1501560832 ; float 4.5036e+15
.text
.align 2
.globl l4__Z2f4j
l4__Z2f4j:
.LBBl4__Z2f4j_0: ; entry
stw r3, -4(r1)
lis r2, 17200
stw r2, -8(r1)
lfd f0, -8(r1)
lis r2, ha16(.CPIl4__Z2f4j_0)
lfs f1, lo16(.CPIl4__Z2f4j_0)(r2)
fsub f0, f0, f1
frsp f1, f0
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22814 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-17 00:39:29 +00:00
Chris Lattner
d5d0f9bd20
Eliminate the RegSDNode class, which 3 nodes (CopyFromReg/CopyToReg/ImplicitDef)
...
used to tack a register number onto the node.
Instead of doing this, make a new node, RegisterSDNode, which is a leaf
containing a register number. These three operations just become normal
DAG nodes now, instead of requiring special handling.
Note that with this change, it is no longer correct to make illegal
CopyFromReg/CopyToReg nodes. The legalizer will not touch them, and this
is bad, so don't do it. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22806 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-16 21:55:35 +00:00
Nate Begeman
7cbd525ba8
Implement BR_CC and BRTWOWAY_CC. This allows the removal of a rather nasty
...
fixme from the PowerPC backend. Emit slightly better code for legalizing
select_cc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22805 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-16 19:49:35 +00:00
Chris Lattner
149c58ce0b
Add some methods for dag->dag isel.
...
Split RemoveNodeFromCSEMaps out of DeleteNodesIfDead to do it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22801 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-16 18:17:10 +00:00
Nate Begeman
2d56e72f09
Fix last night's PPC32 regressions by
...
1. Not selecting the false value of a select_cc in the false arm, which
isn't legal for nested selects.
2. Actually returning the node we created and Legalized in the FP_TO_UINT
Expander.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22789 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-14 18:38:32 +00:00
Nate Begeman
d2558e3e4a
Teach the legalizer how to legalize FP_TO_UINT.
...
Teach the legalizer to promote FP_TO_UINT to FP_TO_SINT if the wider
FP_TO_UINT is also illegal. This allows us on PPC to codegen
unsigned short foo(float a) { return a; }
as:
_foo:
.LBB_foo_0: ; entry
fctiwz f0, f1
stfd f0, -8(r1)
lwz r2, -4(r1)
rlwinm r3, r2, 0, 16, 31
blr
instead of:
_foo:
.LBB_foo_0: ; entry
fctiwz f0, f1
stfd f0, -8(r1)
lwz r2, -4(r1)
lis r3, ha16(.CPI_foo_0)
lfs f0, lo16(.CPI_foo_0)(r3)
fcmpu cr0, f1, f0
blt .LBB_foo_2 ; entry
.LBB_foo_1: ; entry
fsubs f0, f1, f0
fctiwz f0, f0
stfd f0, -16(r1)
lwz r2, -12(r1)
xoris r2, r2, 32768
.LBB_foo_2: ; entry
rlwinm r3, r2, 0, 16, 31
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22785 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-14 01:20:53 +00:00
Nate Begeman
e5d63829fd
Some SELECT_CC cleanups:
...
1. move assertions for node creation to getNode()
2. legalize the values returned in ExpandOp immediately
3. Move select_cc optimizations from SELECT's getNode() to SELECT_CC's,
allowing them to be cleaned up significantly.
This paves the way to pick up additional optimizations on SELECT_CC, such
as sum-of-absolute-differences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22757 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-11 01:12:20 +00:00
Nate Begeman
9373a81e53
Add new node, SELECT_CC. This node is for targets that don't natively
...
implement SELECT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22755 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-10 20:51:12 +00:00
Chris Lattner
7cf7e3f33f
Eliminate the SetCCSDNode in favor of a CondCodeSDNode class. This pulls the
...
CC out of the SetCC operation, making SETCC a standard ternary operation and
CC's a standard DAG leaf. This will make it possible for other node to use
CC's as operands in the future...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22728 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-09 20:20:18 +00:00
Chris Lattner
82299e7097
Change FindEarliestCallSeqEnd (used by libcall insertion) to use a set to
...
avoid revisiting nodes more than once. This eliminates a source of
potentially exponential behavior. For a small function in 191.fma3d
(hexah_stress_divergence_), this speeds up isel from taking > 20mins to
taking 0.07s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22680 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 18:10:27 +00:00
Chris Lattner
2f4eca30d1
Fix a latent bug in the libcall inserter that was exposed by Nate's patch
...
yesterday. This fixes whetstone and a bunch of programs in the External tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22678 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 16:23:57 +00:00
Nate Begeman
2ac4fc0320
Fix a fixme in LegalizeDAG
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22661 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 21:43:28 +00:00
Chris Lattner
4c64dd7977
Fix PR611, codegen'ing SREM of FP operands to fmod or fmodf instead of
...
the sequence used for integer ops
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22629 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-03 20:31:37 +00:00
Chris Lattner
e21c305ed8
Fix casts from long to sbyte on ppc
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22570 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-01 18:16:37 +00:00
Jeff Cohen
d29b6aa608
Keep tabs and trailing spaces out.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22565 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 18:33:25 +00:00
Chris Lattner
f20d183c22
fix float->long conversions on x86
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22563 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 01:40:57 +00:00
Chris Lattner
f1fa74ee0d
Allow targets to have custom expanders for FP_TO_*INT conversions where
...
both the src and dest values are legal
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22555 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-30 00:04:12 +00:00
Chris Lattner
80a3e94653
Allow targets to define custom expanders for FP_TO_*INT
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22548 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 00:33:32 +00:00
Chris Lattner
1618bebcf6
allow a target to request that unknown FP_TO_*INT conversion be promoted to
...
a larger integer destination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22547 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-29 00:11:56 +00:00
Chris Lattner
fa9c801a6b
instead of having all conversions be handled by one case value, and then have
...
subcases inside, break things out earlier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22546 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-28 23:31:12 +00:00
Jeff Cohen
00b16889ab
Eliminate all remaining tabs and trailing spaces.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-27 06:12:32 +00:00
Chris Lattner
f4d32726e6
The assertion was wrong: the code only worked for i64. While we're at it,
...
expand the code to work for all integer datatypes. This should unbreak
alpha.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22464 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-18 04:31:14 +00:00
Nate Begeman
5a8441ea3f
Teach the legalizer how to promote SINT_TO_FP to a wider SINT_TO_FP that
...
the target natively supports. This eliminates some special-case code from
the x86 backend and generates better code as well.
For an i8 to f64 conversion, before & after:
_x87 before:
subl $2, %esp
movb 6(%esp), %al
movsbw %al, %ax
movw %ax, (%esp)
filds (%esp)
addl $2, %esp
ret
_x87 after:
subl $2, %esp
movsbw 6(%esp), %ax
movw %ax, (%esp)
filds (%esp)
addl $2, %esp
ret
_sse before:
subl $12, %esp
movb 16(%esp), %al
movsbl %al, %eax
cvtsi2sd %eax, %xmm0
addl $12, %esp
ret
_sse after:
subl $12, %esp
movsbl 16(%esp), %eax
cvtsi2sd %eax, %xmm0
addl $12, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22452 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 02:02:34 +00:00
Chris Lattner
cad063f1a8
Break the code for expanding UINT_TO_FP operations out into its own
...
SelectionDAGLegalize::ExpandLegalUINT_TO_FP method.
Add a new method, PromoteLegalUINT_TO_FP, which allows targets to request
that UINT_TO_FP operations be promoted to a larger input type. This is
useful for targets that have some UINT_TO_FP or SINT_TO_FP operations but
not all of them (like X86).
The same should be done with SINT_TO_FP, but this patch does not do that
yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22447 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-16 00:19:57 +00:00
Chris Lattner
c087a43510
Fix Alpha/2005-07-12-TwoMallocCalls.ll and PR593.
...
It is not safe to call LegalizeOp on something that has already been legalized.
Instead, just force another iteration of legalization.
This could affect all platforms but X86, as this codepath is dynamically
dead on X86 (ISD::MEMSET and friends are legal).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22419 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-13 02:00:04 +00:00
Chris Lattner
6814f1522d
Fix test/Regression/CodeGen/Generic/2005-07-12-memcpy-i64-length.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22417 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-13 01:42:45 +00:00
Chris Lattner
5f056bf4b8
Change *EXTLOAD to use an VTSDNode operand instead of being an MVTSDNode.
...
This is the last MVTSDNode.
This allows us to eliminate a bunch of special case code for handling
MVTSDNodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22367 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-10 01:55:33 +00:00
Chris Lattner
9fadb4c1c0
Change TRUNCSTORE to use a VTSDNode operand instead of being an MVTSTDNode
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22366 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-10 00:29:18 +00:00
Chris Lattner
15e4b01920
Introduce a new VTSDNode class with the ultimate goal of eliminating the
...
MVTSDNode class. This class is used to provide an operand to operators
that require an extra type. We start by converting FP_ROUND_INREG and
SIGN_EXTEND_INREG over to using it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22364 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-10 00:07:11 +00:00
Andrew Lenharth
f2eb1396b8
2 fixes:
...
1: Legalize operand in UINT_TO_FP expanision
2: SRA x, const i8 was not promoting the constant to shift amount type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22337 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-05 19:52:39 +00:00
Andrew Lenharth
c6bead211b
I really didn't think this was necessary. But, Legalize wasn't running again
...
and legalizing the extload. Strange. Should fix most alpha regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22329 91177308-0d34-0410-b5e6-96231b3b80d8
2005-07-02 20:58:53 +00:00
Andrew Lenharth
31559081a4
oops
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22320 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-30 19:32:57 +00:00
Andrew Lenharth
9d416f713e
FP EXTLOAD is not support on all archs, expand to LOAD and FP_EXTEND
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22319 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-30 19:22:37 +00:00
Andrew Lenharth
f4b3278aeb
Adapt the code for handling uint -> fp conversion for the 32 bit case to
...
handling it in the 64 bit case. The two code paths should probably be merged.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22302 91177308-0d34-0410-b5e6-96231b3b80d8
2005-06-27 23:28:32 +00:00
Chris Lattner
2789bde57f
allow token chain at start or end of node
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22020 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 08:34:53 +00:00
Chris Lattner
3e01136f9f
remove special case hacks for readport/readio from the binary operator
...
codepath
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22019 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 07:45:46 +00:00
Chris Lattner
adf6c2a0cb
Eliminate special purpose hacks for dynamic_stack_alloc.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22015 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 07:29:57 +00:00
Chris Lattner
e89083a930
Use the general mechanism for creating multi-value nodes instead of using
...
special case hacks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22014 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 07:25:05 +00:00
Chris Lattner
d73cc5d058
legalize target-specific operations
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22010 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 06:34:48 +00:00
Chris Lattner
50381b6c41
LowerOperation takes a dag
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22004 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 05:50:48 +00:00
Chris Lattner
a88a260dbd
Allow targets to have a custom int64->fp expander if desired
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22001 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-14 05:33:54 +00:00
Chris Lattner
adf6a965a3
Add an isTailCall flag to LowerCallTo
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21958 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 18:50:42 +00:00
Chris Lattner
d71c04199c
Handle TAILCALL node
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21957 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 18:43:43 +00:00
Chris Lattner
eb516e7f0a
Fix a problem that nate reduced for me.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21923 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 05:17:00 +00:00
Chris Lattner
9530ddcc60
rename variables and functions to match renamed DAG nodes. Bonus feature:
...
I can actually remember which one is which now!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21922 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 05:09:11 +00:00
Chris Lattner
66de05b606
do not call expandop on the same value more than once. This fixes
...
X86/2004-02-22-Casts.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21919 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-13 04:45:13 +00:00
Chris Lattner
128b52d3d7
update comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21916 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 23:24:44 +00:00
Chris Lattner
16cd04d26c
rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21915 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 23:24:06 +00:00
Chris Lattner
9092fa310c
Pass calling convention to use into lower call to
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21900 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 19:56:57 +00:00
Chris Lattner
3becf2026b
fix expansion of ct[lt]z nodes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21896 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 19:27:51 +00:00
Chris Lattner
39a8f33630
Expand 64-bit ctlz/cttz nodes for 32-bit targets
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21895 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 19:05:01 +00:00
Chris Lattner
383203b003
Fix uint->fp casts on PPC, allowing UnitTests/2005-05-12-Int64ToFP to
...
work on it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21894 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 18:52:34 +00:00
Chris Lattner
45982dad53
Allow something to be legalized multiple times. This can be used to reduce
...
legalization iteration
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21892 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 16:53:42 +00:00
Chris Lattner
13689e2009
Oops, don't do this after we figure out where to insert the call chains.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21890 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 07:00:44 +00:00
Chris Lattner
44d105b7fa
Make sure to expand all nodes, avoiding unintentional node duplication.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21889 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 06:54:21 +00:00
Chris Lattner
e131e5b81e
add fixme
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21887 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 06:04:14 +00:00
Chris Lattner
b9fa3bc8f3
Fix a problem where early legalization can cause token chain problems.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21885 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 04:49:08 +00:00
Chris Lattner
88de6e77bf
Make legalize a bit more efficient, and canonicalize sub X, C -> add X, -C
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21882 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-12 00:17:04 +00:00
Nate Begeman
d7c4a4a6c0
Necessary changes to codegen cttz efficiently on PowerPC
...
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21880 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 23:43:56 +00:00
Chris Lattner
0d67f0c80f
Fix the last remaining bug preventing us from switching the X86 BE over
...
from the simple isel to the pattern isel. This forces inserted libcalls
to serialize against other function calls, which was breaking
UnitTests/2005-05-12-Int64ToFP. Hopefully this will fix issues on other
targets as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21872 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 19:02:11 +00:00
Chris Lattner
5c33c9a166
Make sure to legalize generated ctpop nodes, convert tabs to spaces
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21868 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 18:35:21 +00:00
Duraid Madina
57ff7e5f64
expand count-leading/trailing-zeros; the test 2005-05-11-Popcount-ffs-fls.c
...
should now pass (the "LLVM" and "REF" results should be identical)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21866 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 08:45:08 +00:00
Chris Lattner
18aa680a96
Add some notes for expanding clz/ctz
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21862 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:27:09 +00:00
Chris Lattner
e3ef0a8b9f
Simplify this code, use the proper shift amount
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21861 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:21:31 +00:00
Chris Lattner
9b583b4910
Legalize this correctly
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21859 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 05:09:47 +00:00
Chris Lattner
edb1add9a0
implement expansion of ctpop nodes, implementing CodeGen/Generic/llvm-ct-intrinsics.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21856 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 04:51:16 +00:00
Chris Lattner
6d5b8e1646
legalize readio/writeio into a load/store if requested
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21827 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 20:36:57 +00:00
Chris Lattner
52d08bd9d8
legalize READPORT, WRITEPORT, READIO, WRITEIO, at least in the basic cases
...
where they are directly supported by the architecture. Wrap a bunch of
long lines :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21826 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-09 20:23:03 +00:00
Andrew Lenharth
ded10bfb46
ctpop lowering in legalize
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21697 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-05 15:55:21 +00:00
Andrew Lenharth
fecf095292
Make promoteOp work for CT*
...
Proof?
ubyte %bar(ubyte %x) {
entry:
%tmp.1 = call ubyte %llvm.ctlz( ubyte %x )
ret ubyte %tmp.1
}
==>
zapnot $16,1,$0
CTLZ $0,$0
subq $0,56,$0
zapnot $0,1,$0
ret $31,($26),1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21691 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-04 19:11:05 +00:00
Andrew Lenharth
691ef2ba06
Implement count leading zeros (ctlz), count trailing zeros (cttz), and count
...
population (ctpop). Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.
More coming soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21676 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 17:19:30 +00:00
Chris Lattner
f76e7dc8d8
Codegen and legalize sin/cos/llvm.sqrt as FSIN/FCOS/FSQRT calls. This patch
...
was contributed by Morten Ofstad, with some minor tweaks and bug fixes added
by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21636 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:43:14 +00:00
Chris Lattner
da6ba87d23
Legalize FSQRT, FSIN, FCOS nodes, patch contributed by Morten Ofstad
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21606 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:44:33 +00:00
Andrew Lenharth
2d86ea21dd
Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends.
...
(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*. Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21599 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-27 20:10:01 +00:00
Misha Brukman
edf128a7fa
Remove trailing whitespace
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21420 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 22:36:52 +00:00
Chris Lattner
e9c35e7309
Implement expansion of unsigned i64 -> FP.
...
Note that this probably only works for little endian targets, but is enough
to get siod working :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21280 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-13 05:09:42 +00:00
Chris Lattner
ffe284c651
Make expansion of uint->fp cast assert out instead of infinitely recurse.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21275 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-13 03:42:14 +00:00
Chris Lattner
23993561e2
Instead of making ZERO_EXTEND_INREG nodes, use the helper method in
...
SelectionDAG to do the job with AND. Don't legalize Z_E_I anymore as
it is gone
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21266 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-13 02:38:47 +00:00
Chris Lattner
1c51c6ac13
promote extload i1 -> extload i8
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21258 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-12 20:30:10 +00:00
Chris Lattner
5b95ed652f
Emit comparisons against the sign bit better. Codegen this:
...
bool %test1(long %X) {
%A = setlt long %X, 0
ret bool %A
}
like this:
test1:
cmpl $0, 8(%esp)
setl %al
movzbl %al, %eax
ret
instead of:
test1:
movl 8(%esp), %ecx
cmpl $0, %ecx
setl %al
movzbw %al, %ax
cmpl $0, 4(%esp)
setb %dl
movzbw %dl, %dx
cmpl $0, %ecx
cmove %dx, %ax
movzbl %al, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21243 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-12 02:19:10 +00:00
Chris Lattner
08b698e38d
Emit long comparison against -1 better. Instead of this (x86):
...
test2:
movl 8(%esp), %eax
notl %eax
movl 4(%esp), %ecx
notl %ecx
orl %eax, %ecx
cmpl $0, %ecx
sete %al
movzbl %al, %eax
ret
or this (PPC):
_test2:
nor r2, r4, r4
nor r3, r3, r3
or r2, r2, r3
cntlzw r2, r2
srwi r3, r2, 5
blr
Emit this:
test2:
movl 8(%esp), %eax
andl 4(%esp), %eax
cmpl $-1, %eax
sete %al
movzbl %al, %eax
ret
or this:
_test2:
.LBB_test2_0: ;
and r2, r4, r3
cmpwi cr0, r2, -1
li r3, 1
li r2, 0
beq .LBB_test2_2 ;
.LBB_test2_1: ;
or r3, r2, r2
.LBB_test2_2: ;
blr
it seems like the PPC isel could do better for R32 == -1 case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21242 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-12 01:46:05 +00:00
Chris Lattner
bd0781ed12
Teach the dag mechanism that this:
...
long long test2(unsigned A, unsigned B) {
return ((unsigned long long)A << 32) + B;
}
is equivalent to this:
long long test1(unsigned A, unsigned B) {
return ((unsigned long long)A << 32) | B;
}
Now they are both codegen'd to this on ppc:
_test2:
blr
or this on x86:
test2:
movl 4(%esp), %edx
movl 8(%esp), %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21231 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-11 20:29:59 +00:00
Chris Lattner
ee27f57a6a
Fix expansion of shifts by exactly NVT bits on arch's (like X86) that have
...
masking shifts.
This fixes the miscompilation of this:
long long test1(unsigned A, unsigned B) {
return ((unsigned long long)A << 32) | B;
}
into this:
test1:
movl 4(%esp), %edx
movl %edx, %eax
orl 8(%esp), %eax
ret
allowing us to generate this instead:
test1:
movl 4(%esp), %edx
movl 8(%esp), %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21230 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-11 20:08:52 +00:00
Nate Begeman
c7c16575fe
Fix libcall code to not pass a NULL Chain to LowerCallTo
...
Fix libcall code to not crash or assert looking for an ADJCALLSTACKUP node
when it is known that there is no ADJCALLSTACKDOWN to match.
Expand i64 multiply when ISD::MULHU is legal for the target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21214 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-11 03:01:51 +00:00
Chris Lattner
01ff7216dd
Teach legalize to deal with targets that don't support some SEXTLOAD/ZEXTLOADs
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21212 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-10 22:54:25 +00:00
Chris Lattner
6841dec8c1
don't zextload fp values!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21209 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-10 17:40:35 +00:00
Chris Lattner
232ee95a09
Until we have a dag combiner, promote using zextload's instead of extloads.
...
This gives the optimizer a bit of information about the top-part of the
value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21205 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-10 04:33:47 +00:00
Chris Lattner
dea29e25c3
Fix a thinko. If the operand is promoted, pass the promoted value into
...
the new zero extend, not the original operand. This fixes cast bool -> long
on ppc.
Add an unrelated fixme
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21196 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-10 01:13:15 +00:00
Chris Lattner
411e888c1b
Legalize BRCONDTWOWAY into a BRCOND/BR pair if a target doesn't support it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21166 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-09 03:30:19 +00:00
Nate Begeman
f1fe32e337
Teach ExpandShift how to handle shifts by a constant. This allows targets
...
like PowerPC to codegen long shifts in many fewer instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21122 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-06 21:13:14 +00:00
Nate Begeman
c105e19864
Expand SREM and UREM for targets that claim not to have them, like PowerPC
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21103 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-06 00:23:54 +00:00
Nate Begeman
79e46acd35
Handle expanding arguments to ISD::TRUNCATE. This happens on PowerPC when
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you have something like i16 = truncate i64. This fixes Regression/C/casts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21073 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-04 00:57:08 +00:00
Chris Lattner
06098e0e9b
Fix sign_extend and zero_extend of promoted value types to expanded value
...
types. This occurs when casting short to long on PPC for example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21072 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-03 23:41:52 +00:00
Chris Lattner
4af6e0d783
Expand fabs into fneg
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21013 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 05:26:37 +00:00
Chris Lattner
2c8086f4b9
Several changes mixed up here. First when legalizing a DAG with pcmarker,
...
dont' regen the whole dag if unneccesary. Second, fix and ugly bug with
the _PARTS nodes that caused legalize to produce multiples of them.
Finally, implement initial support for FABS and FNEG. Currently FNEG is
the only one to be trusted though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21009 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 05:00:07 +00:00
Chris Lattner
5b359c6c4f
fix some bugs in the implementation of SHL_PARTS and friends.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21004 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 04:00:59 +00:00
Chris Lattner
4759982a2d
Turn expanded shift operations into (e.g.) SHL_PARTS if the target supports it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21002 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-02 03:38:53 +00:00