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57 Commits

Author SHA1 Message Date
Owen Anderson
fe0c882e5a As Chris and Evan pointed out, BreakCriticalMachineEdges doesn't really need 
to be a pass of its own.  Instead, move it out into a helper method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44002 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-12 01:05:09 +00:00
Owen Anderson
0823cea34a This preserves critical edge breaking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43911 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 22:23:57 +00:00
Owen Anderson
a018540807 Bring UsedBlocks back. StrongPHIElimination needs this information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43866 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-08 01:20:48 +00:00
Evan Cheng
7bb175b4d1 It's possible to commute instrctions with more than 3 operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43256 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 20:14:40 +00:00
Evan Cheng
b9d5e7cdc9 Added missing curly braces which renders the if clause useless in debug build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43196 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-20 04:01:47 +00:00
Evan Cheng
9efce638d3 Allow copyRegToReg to emit cross register classes copies. 
Tested with "make check"!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42346 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-26 06:25:56 +00:00
Nick Lewycky
ecd94c804a Fix typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36873 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-06 13:37:16 +00:00
Devang Patel
1997473cf7 Drop 'const' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-03 01:11:54 +00:00
Devang Patel
3e15bf33e0 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-02 21:39:20 +00:00
Devang Patel
794fd75c67 Do not use typeinfo to identify pass in pass manager. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 21:15:47 +00:00
Evan Cheng
f44c72817e VarInfo::UsedBlocks is no longer used. Remove. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36250 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 05:04:38 +00:00
Evan Cheng
e951cd1647 Keep UsedBlocks info accurate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35140 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-18 09:02:31 +00:00
Chris Lattner
cd3245ac45 Eliminate static ctors from Statistics 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32698 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-19 22:41:21 +00:00
Bill Wendling
bcd2498f4f Removed more <iostream> includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32321 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 20:28:15 +00:00
Chris Lattner
ac0b6ae358 Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32279 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-06 17:46:33 +00:00
Evan Cheng
ba59a1e453 Match TargetInstrInfo changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32098 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-01 21:52:58 +00:00
Bill Wendling
a09362eb97 Use llvm streams instead of <iostream> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31985 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-28 22:48:48 +00:00
Evan Cheng
a1fd6504aa Remove M_2_ADDR_FLAG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31583 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-09 02:22:54 +00:00
Evan Cheng
360c2dd25a Two-address instructions no longer have to be A := A op C. Now any pair of dest / src operands can be tied together. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31363 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 23:06:55 +00:00
Chris Lattner
2926869b4a Fix a long-standing wart in the code generator: two-address instruction lowering 
actually *removes* one of the operands, instead of just assigning both operands
the same register.  This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.

Changing this also gets rid of a bunch of hacky code in various places.

This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30108 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 02:12:02 +00:00
Chris Lattner
a4f0b3a084 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h| 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29911 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 12:54:02 +00:00
Andrew Lenharth
ed41f1bb19 Reduce number of exported symbols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29220 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-07-20 17:28:38 +00:00
Chris Lattner
f8c68f694c Shave another 27K off libllvmgcc.dylib with visibility hidden 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28973 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-28 22:17:39 +00:00
Chris Lattner
d74ea2bbd8 Patches to make the LLVM sources more -pedantic clean. Patch provided 
by Anton Korobeynikov!  This is a step towards closing PR786.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28447 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 17:04:05 +00:00
Chris Lattner
e53f4a055f Move some methods out of MachineInstr into MachineOperand 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28102 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-04 17:52:23 +00:00
Chris Lattner
2c2c6c61f1 Add explicit #includes of <iostream> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25515 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-22 23:41:00 +00:00
Chris Lattner
c60e6020c0 Fix some spello's pointed out by Gabor Greif 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24019 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-10-26 18:41:41 +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
c71d6949b9 Use the TargetInstrInfo::commuteInstruction method to commute instructions 
instead of doing it manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19685 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 07:08:42 +00:00
Chris Lattner
cfa0f2edd3 Make the 2-address instruction lowering pass smarter in two ways: 
1. If we are two-addressing a commutable instruction and the LHS is not the
   last use of the variable, see if the instruction is the last use of the
   RHS.  If so, commute the instruction, allowing us to avoid a
   register-register copy in many cases for common instructions like ADD, OR,
   AND, etc on X86.
2. If #1 doesn't hold, and if this is an instruction that also existing in
   3-address form, promote the instruction to a 3-address instruction to
   avoid the register-register copy.  We can do this for several common
   instructions in X86, including ADDrr, INC, DEC, etc.

This patch implements test/Regression/CodeGen/X86/commute-two-addr.ll,
overlap-add.ll, and overlap-shift.ll when I check in the X86 support for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19245 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 02:34:12 +00:00
Reid Spencer
551ccae044 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:55:40 +00:00
Chris Lattner
078fee3f2e The insertion method returns void now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15779 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-15 22:14:31 +00:00
Misha Brukman
75fa4e4f99 Fix indentation and wrap code at 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15107 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:26:23 +00:00
Chris Lattner
199edde707 Remove extraneous punctuation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15098 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 05:51:56 +00:00
Chris Lattner
1e31363a9e Minor cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15091 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 23:17:57 +00:00
Brian Gaeke
7848e68c16 These files don't need to include <iostream> since they include "Support/Debug.h". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15089 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:50:33 +00:00
Chris Lattner
472405e0dc Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14997 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 06:55:21 +00:00
Tanya Lattner
b140762a45 Made a fix so that you can print out MachineInstrs that belong to a MachineBasicBlock that is not yet attached to a MachineFunction. This change includes changing the third operand (TargetMachine) to a pointer for the MachineInstr::print function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-25 00:13:11 +00:00
Chris Lattner
9bcdcd17c7 Adjust to new TargetMachine interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13956 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:57:12 +00:00
Alkis Evlogimenos
3a9986f5d8 Beautify debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11573 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 00:35:06 +00:00
Alkis Evlogimenos
f11800b718 This pass should not require phi elimination or live variable 
analysis. It should only preserve them and update LiveVariables if it
already ran.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11479 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 21:50:32 +00:00
Alkis Evlogimenos
f81af21caf Use newly added next() and prior() utility functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11430 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-14 01:18:34 +00:00
Alkis Evlogimenos
be766c7246 Remove getAllocatedRegNum(). Use getReg() instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11393 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-13 21:01:20 +00:00
Alkis Evlogimenos
c0b9dc5be7 Change MachineBasicBlock's vector of MachineInstr pointers into an 
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 02:27:10 +00:00
Tanya Lattner
5a5960978a Added missing include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11129 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-05 05:04:39 +00:00
Alkis Evlogimenos
14be64018f Modify the two address instruction pass to remove the duplicate 
operand of the instruction and thus simplify the register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 22:17:40 +00:00
Alkis Evlogimenos
9fe7602862 Revert changes. Will implement this using a different set of primitives 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11091 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-02 23:08:58 +00:00
Alkis Evlogimenos
eea81bafd6 Correctly update def/use information for modified machine operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11087 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-02 21:56:40 +00:00
Chris Lattner
6b50767905 Fix, correctly this time, the computation of the return value 
Fix a spello
Tighten up the assertion checking

No functionality changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11036 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-31 21:21:43 +00:00
Chris Lattner
163c1e7a69 * Fix incorrect computation of the runOnMachineFunction return value 
* Turn a bunch of instance variables into automatic variables


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11035 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-01-31 21:14:04 +00:00