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Author SHA1 Message Date
Duncan Sands
f24d87c733 Use // not ; since this is C. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36219 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:50:33 +00:00
Evan Cheng
20b0abc24f Copy coalescing change to prevent a physical register from being pin to a 
long live interval that has low usage density.
1. Change order of coalescing to join physical registers with virtual
   registers first before virtual register intervals become too long.
2. Check size and usage density to determine if it's worthwhile to join.
3. If joining is aborted, assign virtual register live interval allocation
   preference field to the physical register.
4. Register allocator should try to allocate to the preferred register
   first (if available) to create identify moves that can be eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36218 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:32:26 +00:00
Devang Patel
58ff012539 New test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36217 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:29:12 +00:00
Evan Cheng
e52eef8e9a Add a register allocation preference field; add a method to compute size of a live interval. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36216 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:25:11 +00:00
Evan Cheng
eff03db46d Change getAllocatableSet() so it returns allocatable registers for a specific register class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36215 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:23:34 +00:00
Evan Cheng
38b7ca6651 Keep track of number of uses within the function per virtual register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36214 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:22:11 +00:00
Anton Korobeynikov
e060b5385f Add comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36213 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 19:34:00 +00:00
Chris Lattner
95a5e0507e SIGN_EXTEND_INREG does not demand its top bits. Give SimplifyDemandedBits 
a chance to hack on it.  This compiles:

int baz(long long a) { return (short)(((int)(a >>24)) >> 9); }

into:
_baz:
        slwi r2, r3, 8
        srwi r2, r2, 9
        extsh r3, r2
        blr

instead of:

_baz:
        srwi r2, r4, 24
        rlwimi r2, r3, 8, 0, 23
        srwi r2, r2, 9
        extsh r3, r2
        blr

This implements CodeGen/PowerPC/sign_ext_inreg1.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36212 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 19:03:21 +00:00
Chris Lattner
84e8315aaa new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36211 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 19:03:02 +00:00
Chris Lattner
47e756c11e Commit an patch from Gabor Greif in Mar 2005. This eliminates the tail 
pointer from ilist, storing it in the prev pointer of the first node in the
list instead.

This shrinks ilist from 8 to 4 bytes, BasicBlock from 40->36 bytes, Function
from 76->68 bytes, Module from 52->44 bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36210 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:41:42 +00:00
Chris Lattner
4cc12c9f57 make getnext/getprev accessors private. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36209 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:30:41 +00:00
Dan Gohman
747603e39e Spell doFinalization right, so that it is a proper virtual override and 
gets called.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36208 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:21:36 +00:00
Chris Lattner
881765af0a make next/prev accessors private 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36207 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:16:39 +00:00
Chris Lattner
7a83aecc03 bool on darwin/ppc is 4 bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36206 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:15:04 +00:00
Chris Lattner
261cdfbe5e remove use of BasicBlock::getNext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36205 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:09:47 +00:00
Chris Lattner
97f89e688f Instruction:: Next/Prev accessors are now private 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:03:55 +00:00
Chris Lattner
3c30d10b04 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36203 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:03:00 +00:00
Chris Lattner
e24c92a698 remove use of BasicBlock::getNext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36202 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:54:12 +00:00
Chris Lattner
8e8f865227 Remove use of Instruction::getNext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36201 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:52:45 +00:00
Chris Lattner
a0e1b0e98d eliminate use of Instruction::getNext() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36200 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:51:03 +00:00
Chris Lattner
decb0ca18b remove use of Instruction::getNext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36199 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:47:54 +00:00
Chris Lattner
b8e237bb86 eliminate use of Instruction::getPrev(). Patch by Gabor Greif in 2005. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36198 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:38:28 +00:00
Chris Lattner
4d8c16f15a eliminate a use of Instruction::getPrev(), patch by Gabor Greif in 2005. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36197 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:36:12 +00:00
Chris Lattner
d15dff24c6 rename X86FunctionInfo to X86MachineFunctionInfo to match the header file 
it is defined in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36196 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 17:21:52 +00:00
Anton Korobeynikov
57fc00d5cf Implemented correct stack probing on mingw/cygwin for dynamic alloca's. 
Also, fixed static case in presence of eax livin. This fixes PR331

PS: Why don't we still have push/pop instructions? :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36195 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 09:20:00 +00:00
Jeff Cohen
56398e39d7 Make it work on 64-bit systems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36194 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 05:48:35 +00:00
Jeff Cohen
eb913b6b34 Fix build breakage on 64-bit systems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36193 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 05:33:04 +00:00
Chris Lattner
18feb92e91 merge several fields in GlobalValue to use the same word, move CallingConv 
field into SubclassData in Value.  This shrinks GlobalVAlue from 48->40
bytes, Function from 88->76, and GlobalVariable from 76->68.  This trims
4640 bytes off my testcase, reading a bc file without materializing any
functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36192 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 04:31:29 +00:00
Andrew Lenharth
15b7823006 Use this nifty Constraints thing and fix the inverted conditional moves 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36191 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 04:07:59 +00:00
Andrew Lenharth
0644309e0d this is fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36190 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 04:07:27 +00:00
Chris Lattner
f8dfef7437 The (negative) offset from a SymbolTableListTraits-using ilist to its container 
object is always constant.  As such, evaluate it at compile time instead of storing
it as an ivar in SymbolTableListTraits.  This shrinks every SymbolTableListTraits
ilist by a word, shrinking BasicBlock from 44->40 bytes, Function from 96->88 bytes,
and Module from 60->52 bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36189 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 04:04:14 +00:00
Chris Lattner
17fcdd5e1b Refactor SymbolTableListTraits to only have a single pointer in it, instead 
of two.  This shrinkifies Function by 8 bytes (104->96) and Module by 8
bytes (68->60).  On a testcase of mine, this reduces the memory used to
read a module header from 565680b to 561024, a little over 4K.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36188 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 03:26:42 +00:00
Chris Lattner
205c27d4a9 urr, yeah. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36187 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 02:04:39 +00:00
Devang Patel
f23de11c29 Remove "ModulePasses requiring FunctionPasses" from the list of future 
extensions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36186 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 00:17:11 +00:00
Chris Lattner
56ecbf3013 SSE4 is apparently public now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36185 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 00:02:37 +00:00
Devang Patel
253f7fe77e Add PR number for reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36184 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 23:52:37 +00:00
Reid Spencer
e8501ab492 Make long line fit in 80 cols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36183 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 23:32:28 +00:00
Devang Patel
ac58516cdc Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047888.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36182 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 23:03:45 +00:00
Devang Patel
b6b40ebc83 New test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36181 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 23:02:22 +00:00
Reid Spencer
9a9203b894 Fix problems in the PartSet lowering having to do with incorrect bit width. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36180 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 22:21:14 +00:00
Reid Spencer
ed48de2375 Regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36179 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 22:02:23 +00:00
Reid Spencer
ce1e8efc43 Okay, yes there *is* a getKeyLength method on ValueName. And, it should be 
used because we *do* want to allow nulls in names.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36178 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 22:01:57 +00:00
Jeff Cohen
c398709525 In the event that some really old non-Intel or -AMD CPU is encountered... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36177 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:59:44 +00:00
Reid Spencer
c657d2f688 Fix this test from Duncan's experiment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36176 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:57:14 +00:00
Reid Spencer
b579650f01 Also validate that the code generation of IntrinsicLowering for LLI works. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36175 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:52:56 +00:00
Reid Spencer
4ccf462b99 Implement @sext and @zext parameter attribute handling properly instead of 
forcing every small argument of every function regardless of attributes or
calling convention to be expanded.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36174 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:50:40 +00:00
Jeff Cohen
22114c319a Before assuming that the original code didn't work for Athlon64, the person who 
replaced it with a FIXME should have determined what did work.  Then he would have
realized that the code was in fact correct, and would have avoided breaking it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36173 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:48:58 +00:00
Chris Lattner
8f9a0ff495 refix this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36172 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:30:21 +00:00
Devang Patel
3c1ca0b195 Document how, module pass can require function pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36171 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:28:14 +00:00
Chris Lattner
3b317e5e7f use an x86 t-t for an x86 test. Thanks to Dan for noticing this! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36170 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:26:37 +00:00