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
Chris Lattner
5549a10792
adjust to changes in InlineAsm interface. Fix a few minor bugs.
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llvm-svn: 25865
2006-02-01 01:28:23 +00:00
Evan Cheng
f115c17f23
Allow the specification of explicit alignments for constant pool entries.
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llvm-svn: 25855
2006-01-31 22:23:14 +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
e113238f5c
Handle physreg input/outputs. We now compile this:
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int %test_cpuid(int %op) {
%B = alloca int
%C = alloca int
%D = alloca int
%A = call int asm "cpuid", "=eax,==ebx,==ecx,==edx,eax"(int* %B, int* %C, int* %D, int %op)
%Bv = load int* %B
%Cv = load int* %C
%Dv = load int* %D
%x = add int %A, %Bv
%y = add int %x, %Cv
%z = add int %y, %Dv
ret int %z
}
to this:
_test_cpuid:
sub %ESP, 16
mov DWORD PTR [%ESP], %EBX
mov %EAX, DWORD PTR [%ESP + 20]
cpuid
mov DWORD PTR [%ESP + 8], %ECX
mov DWORD PTR [%ESP + 12], %EBX
mov DWORD PTR [%ESP + 4], %EDX
mov %ECX, DWORD PTR [%ESP + 12]
add %EAX, %ECX
mov %ECX, DWORD PTR [%ESP + 8]
add %EAX, %ECX
mov %ECX, DWORD PTR [%ESP + 4]
add %EAX, %ECX
mov %EBX, DWORD PTR [%ESP]
add %ESP, 16
ret
... note the proper register allocation. :)
it is unclear to me why the loads aren't folded into the adds.
llvm-svn: 25827
2006-01-31 02:03:41 +00:00
Chris Lattner
ce37ba3417
Print the most trivial inline asms.
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llvm-svn: 25822
2006-01-30 23:00:08 +00:00
Chris Lattner
e24c6ef1f9
Fix a bug in my legalizer reworking that caused the X86 backend to not get
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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
a44182300b
Move MaskedValueIsZero from the DAGCombiner to the TargetLowering interface,making isMaskedValueZeroForTargetNode simpler, and useable from other partsof the compiler.
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llvm-svn: 25803
2006-01-30 04:09:27 +00:00
Chris Lattner
26589d32e6
pass the address of MaskedValueIsZero into isMaskedValueZeroForTargetNode,
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to permit recursion
llvm-svn: 25799
2006-01-30 03:49:37 +00:00
Chris Lattner
414a73d6f6
Fix RET of promoted values on targets that custom expand RET to a target node.
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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
8768eb7532
add another method variant
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llvm-svn: 25744
2006-01-28 10:09:25 +00:00
Chris Lattner
63f7e84632
add some methods for updating nodes
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llvm-svn: 25742
2006-01-28 09:32:45 +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
Chris Lattner
d6d4bcc419
remove method I just added
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llvm-svn: 25728
2006-01-28 03:43:09 +00:00
Chris Lattner
063c13029b
add a new callback
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llvm-svn: 25727
2006-01-28 03:37:03 +00:00
Nate Begeman
87c2c0e66b
Implement Promote for VAARG, and allow it to be custom promoted for people
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who don't want the default behavior (Alpha).
llvm-svn: 25726
2006-01-28 03:14:31 +00:00
Nate Begeman
dc3fba6b6b
Add a missing case to the dag combiner.
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llvm-svn: 25723
2006-01-28 01:06:30 +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
Nate Begeman
d2c6fbef4a
Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for
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the same functionality. This addresses another piece of bug 680. Next,
on to fixing Alpha VAARG, which I broke last time.
llvm-svn: 25696
2006-01-27 21:09:22 +00:00
Jim Laskey
c8759505c4
Using bit size of integers instead of ambiguous "long" et all.
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llvm-svn: 25694
2006-01-27 20:31:25 +00:00
Jim Laskey
2221ac79d5
Sorry - really folowing convention.
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llvm-svn: 25691
2006-01-27 18:32:41 +00:00
Jim Laskey
479abc37ff
Following convention.
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llvm-svn: 25689
2006-01-27 18:28:31 +00:00
Andrew Lenharth
67e53709df
fix build
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llvm-svn: 25687
2006-01-27 18:16:17 +00:00
Chris Lattner
e4128dc8dc
Fix build error that is apparently only a warning with some compilers.
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llvm-svn: 25686
2006-01-27 17:31:30 +00:00
Jim Laskey
5ed7bc82cc
Forgot the version number.
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llvm-svn: 25685
2006-01-27 15:46:54 +00:00
Jim Laskey
89492c12bb
Improve visibility/correctness of operand indices in "llvm.db" objects.
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Handle 64 in DIEs.
llvm-svn: 25684
2006-01-27 15:20:54 +00:00
Chris Lattner
09d8aa244e
Stub out a method
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llvm-svn: 25676
2006-01-27 02:10:10 +00:00
Chris Lattner
a1769576f0
Teach the scheduler to emit the appropriate INLINEASM MachineInstr for an
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ISD::INLINEASM node.
llvm-svn: 25668
2006-01-26 23:28:04 +00:00
Chris Lattner
b2771c7fcb
initial selectiondag support for new INLINEASM node. Note that inline asms
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with outputs or inputs are not supported yet. :)
llvm-svn: 25664
2006-01-26 22:24:51 +00:00
Jim Laskey
df47d0df3e
Use global information to fill out Dwarf compile units.
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llvm-svn: 25662
2006-01-26 21:22:49 +00:00
Jim Laskey
583aae3110
Set up MachineDebugInfo to scan for debug information form "llvm.db"g globals.
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Global Variable information is now pulled from "llvm.dbg.globals"
llvm-svn: 25655
2006-01-26 20:21:46 +00:00
Evan Cheng
fcd2a73349
Clean up some code; improve efficiency; and fixed a potential bug involving
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chain successors.
llvm-svn: 25630
2006-01-26 00:30:29 +00:00
Reid Spencer
f45272f413
Don't break the optimized build (by incorrect placement of #endif)
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llvm-svn: 25613
2006-01-25 21:49:13 +00:00
Evan Cheng
168b8c5b29
No need to keep track of top and bottom nodes in a group since the vector is
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already in order. Thanks Jim for pointing it out.
llvm-svn: 25608
2006-01-25 18:54:24 +00:00
Nate Begeman
c29fac7fce
First part of bug 680:
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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