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dc4d6558e4
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21348 Commits

Author SHA1 Message Date
Owen Anderson
dc4d6558e4 Add more comments explaining the basics of how the decision of when to rename and when to insert 
copies is made.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45799 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 00:47:01 +00:00
Evan Cheng
27a446afaf Do not use the stack pointer directly, issue a copyfromreg instead. Otherwise we can end up with something like ADD32ri %esp, x which two-address pass won't like. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45798 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 00:37:26 +00:00
Owen Anderson
b199cbec2e Get rid of the isKillInst predicate. LiveVariables already provides this information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45797 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 00:33:11 +00:00
Chris Lattner
9c4428b217 Fix PR1845 and rdar://5676945. Generic vectors smaller 
than hardware supported type will be scalarized, so we
can infer their alignment from that info.

We now codegen pr1845 into:

_boolVectorSelect:
	lbz r2, 0(r3)
	stb r2, -16(r1)
	blr 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45796 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 00:30:57 +00:00
Evan Cheng
dffbd837b8 Remove comments that do not correspond to anything after recent refactoring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45792 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 00:09:10 +00:00
Owen Anderson
9c2efa8a8f Copies need to be inserted before the first terminator, not at the end of the block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45791 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 00:01:41 +00:00
Evan Cheng
19107563af Special copy SUnit's do not have SDNode's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45787 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-09 23:01:55 +00:00
Owen Anderson
ec1213fbbb Clean up StrongPHIElimination a bit, and add some more comments to the internal structures. There's 
still more work to do on this front.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45783 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-09 22:40:54 +00:00
Duncan Sands
f52e32aab0 Fix compile failures with g++-4.3. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45781 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-09 19:42:09 +00:00
Owen Anderson
864e3a3762 StrongPHIElim: Now with even fewer trivial bugs! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45775 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-09 10:41:39 +00:00
Owen Anderson
719fef648d Fix an infinite recursion bug in InsertCopies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45774 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-09 10:32:30 +00:00
Owen Anderson
cb7d949a19 Fix some simple bugs. StrongPHIElimination now does not crash on 164.gzip. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45773 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-09 06:19:05 +00:00
Chris Lattner
269f0595d6 add a testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45768 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-09 00:37:18 +00:00
Chris Lattner
f61b63ec5b add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45766 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-09 00:17:57 +00:00
Chris Lattner
07649d9265 Make load->store deletion a bit smarter. This allows us to compile this: 
void test(long long *P) { *P ^= 1; }

into just:

_test:
	movl	4(%esp), %eax
	xorl	$1, (%eax)
	ret

instead of code like this:

_test:
	movl	4(%esp), %ecx
        xorl    $1, (%ecx)
	movl	4(%ecx), %edx
	movl	%edx, 4(%ecx)
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45762 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 23:08:06 +00:00
Owen Anderson
0c5714bb99 Rename registers that do not need copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45759 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 21:54:52 +00:00
Duncan Sands
e51775dc5e Use size_t to store Pos, avoid truncating value 
on 64-bit builds.  Analysis and original patch
by Török Edwin.  Code audit found another place
with the same problem, also fixed here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 10:06:15 +00:00
Chris Lattner
f9d9e45225 Implement PR1795, an instcombine hack for forming GEPs with integer pointer arithmetic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 07:23:51 +00:00
Chris Lattner
fe39edde27 Finally implement correct ordered comparisons for PPC, even though 
the code generated is not wonderful.  This turns a miscompilation into
a code quality bug (noted in the ppc readme).  This fixes PR642, which
is over 2 years old (!).  Nate, please review this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45742 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 06:46:30 +00:00
Owen Anderson
0d893b4038 Actually insert copies now! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45738 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 05:16:15 +00:00
Evan Cheng
b353459d68 Minor fix to enable x86-64 pic jit (still fails for other reasons). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 02:07:10 +00:00
Evan Cheng
b1a9aec515 Fix a x86-64 static codegen bug. This fixes a lot of x86-64 jit failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45733 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 02:06:11 +00:00
Bill Wendling
750ec00436 Silence warning about loss of precision. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45731 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 00:52:29 +00:00
Evan Cheng
325474e065 Only mark instructions that load a single value without extension as isSimpleLoad = 1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45727 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 23:56:57 +00:00
Chris Lattner
f7c8db9ab5 add a new bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45726 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 23:16:55 +00:00
Evan Cheng
9b44944d3d Unbreak x86-64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45725 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 23:08:23 +00:00
Chris Lattner
84a7c41251 add a note that is important for some fp apps. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45723 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 21:59:58 +00:00
Chris Lattner
b3041948eb possible switch lowering improvement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45720 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 21:38:14 +00:00
Owen Anderson
0b4825c38b Oops, missed one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45719 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 21:32:09 +00:00
Owen Anderson
9e549202a0 Make some predicates static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45718 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 21:30:40 +00:00
Duncan Sands
6aae7a748e I doubt the address of the Error string was intended 
to be used for the force_interpreter parameter...
Spotted by gcc-4.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45714 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 19:14:42 +00:00
Duncan Sands
9c5525f4fa Add missing newline at EOF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45712 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 19:13:36 +00:00
Duncan Sands
6c3470efdc Small cleanup for handling of type/parameter attribute 
incompatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 17:16:06 +00:00
Duncan Sands
30d15751c8 Unbreak x86-32 darwin long double! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 16:36:38 +00:00
Duncan Sands
004a81dcc7 Fix long double support on x86-32 linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 13:44:22 +00:00
Gordon Henriksen
c45d98d966 Pruning includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 13:30:38 +00:00
Bill Wendling
323cd29009 Operand 1 should be a register. We don't care if it's a preg, vreg, or 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45699 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 08:05:29 +00:00
Chris Lattner
4e4e46143a add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45698 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 07:46:23 +00:00
Chris Lattner
f14cf85e33 remove #includage 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 07:42:25 +00:00
Chris Lattner
749c6f6b5e rename TargetInstrDescriptor -> TargetInstrDesc. 
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 07:27:27 +00:00
Chris Lattner
3db805ea80 simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45693 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 06:47:00 +00:00
Chris Lattner
0ff23966fe Rename all the M_* flags to be namespace qualified enums, and switch 
all clients over to using predicates instead of these flags directly.
These are now private values which are only to be used to statically
initialize the tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45692 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 06:42:05 +00:00
Chris Lattner
c17d69fa1e use predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45691 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 06:37:29 +00:00
Chris Lattner
e32d765f99 add more and significantly better comments to the rest of the machineinstr 
flags that can be set.  Add predicates for the ones lacking it, and switch
some clients over to using the predicates instead of Flags directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45690 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 06:21:53 +00:00
Chris Lattner
f86e1df877 simplify some code using new predicates 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45689 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 05:40:58 +00:00
Chris Lattner
8f707e15fb rename hasVariableOperands() -> isVariadic(). Add some comments. 
Evan, please review the comments I added to getNumDefs to make sure
that they are accurate, thx.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 05:19:29 +00:00
Chris Lattner
775060d007 remove a dead field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45685 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 04:57:42 +00:00
Chris Lattner
7358c193fd no need to explicitly clear these fields. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45683 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 04:55:09 +00:00
Chris Lattner
349c495200 Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 03:13:06 +00:00
Chris Lattner
cc8cd0cbf1 remove MachineOpCode typedef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45679 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 02:48:55 +00:00