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Author SHA1 Message Date
Owen Anderson
6cae7409b1 Remember to clear the maximal sets between functions. 
Thanks to Nicholas for valgrinding this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37646 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 04:32:55 +00:00
Owen Anderson
086f5f350b Refactor GVNPRE to use a much smart method of uniquing value sets, and centralize a lot of the value numbering information. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37645 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 03:31:41 +00:00
Dan Gohman
82a87a0172 Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad 
with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37644 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 01:48:05 +00:00
Evan Cheng
eaa91b0a1f Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37643 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 01:26:51 +00:00
Evan Cheng
4e6b1e1d99 Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37642 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 01:21:41 +00:00
Chris Lattner
52387be1e0 If a function is vararg, never pass inreg arguments in registers. Thanks to 
Anton for half of this patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37641 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:13:10 +00:00
Chris Lattner
aeeccfc5b2 add isVarArg to CCState 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37640 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:11:09 +00:00
Chris Lattner
f9521355c4 add isvararg tracking to CCState 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37639 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:10:25 +00:00
Chris Lattner
839c522e0c testcase for PR1513 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37638 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:08:42 +00:00
Evan Cheng
ad0a4c0be9 New test case: identity operation of RHS / LHS of a VECTOR_SHUFFLE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37637 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:06:08 +00:00
Evan Cheng
49892af264 Look for VECTOR_SHUFFLE that's identity operation on either LHS or RHS. This can happen before DAGCombiner catches it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37636 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:02:56 +00:00
Tanya Lattner
d2e8442a13 Update docs for llvm.var.annotation intrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37635 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 23:42:37 +00:00
Evan Cheng
c4047a8e96 Fix some fragile code wrt CFG edge updating. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37634 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 22:44:57 +00:00
Evan Cheng
2bdb7d0cc8 Move CorrectExtraCFGEdges() from BranchFolding.cpp to a MachineBasicBlock method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37633 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 22:43:58 +00:00
Tanya Lattner
eff2cdfca7 Modify annotate intrinsic to take 2 additional args: file and line number. 
Fix up Annotate attribute test case.
Fix DebugFilename.c test case to look for right file name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37632 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 22:23:39 +00:00
Chris Lattner
66250e97ef add helper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37631 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 21:50:49 +00:00
Devang Patel
7d97bf1429 Fix quotes in debug messages. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37630 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 21:32:29 +00:00
Chris Lattner
e10e6f7a36 make ComputeTopDownOrdering significantly faster and use less stack space 
by making it non-recursive


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37629 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 21:28:10 +00:00
Dan Gohman
f50cd749e1 In SCEVAddExpr::get, skip over any cast operands before looking for nested 
add operands after constant operands. The recent change to recognize
sign-extend expressions caused this to be exposed more often.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37628 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 19:30:09 +00:00
Anton Korobeynikov
03265f98a3 Make BasicAliasAnalysis correctly register itself. Patch by Devang 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37627 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 17:13:29 +00:00
Dan Gohman
7a0a4fc912 Make chain dependencies blue, in addition to being dashed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37626 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 15:30:16 +00:00
Dan Gohman
638c96d391 Define the pushq instruction for x86-64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37625 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 14:12:56 +00:00
Dan Gohman
ec82dc9a7c Add keyword explicit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37624 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 14:11:31 +00:00
Evan Cheng
a1a878791b Properly remove duplicate instructions as result of diamond if-conversion. Other bug fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37623 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 08:37:25 +00:00
Owen Anderson
bbf1197be1 Cache the results of dependsOnInvoke() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37622 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 04:42:29 +00:00
Owen Anderson
a8daa7176b Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37621 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 04:31:21 +00:00
Owen Anderson
60e174495a Don't perform an expensive check if it's not necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37620 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 04:30:44 +00:00
Chris Lattner
910b4b8479 ensure we don't regress on these tests. We generate aweful code in x86-32 for 
these though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37619 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-17 23:29:57 +00:00
Bill Wendling
521d5c72ac XFAILing until I can fix properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37618 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 23:57:51 +00:00
Bill Wendling
a9e64f6f2d Revert patch. It regresses: 
define double @test2(i64 %A) {
   %B = bitcast i64 %A to double
   ret double %B
}

$ llvm-as < t.ll | llc -march=x86-64

before:

         .align  4
         .globl  _test2
_test2:
         movd %rdi, %xmm0
         ret

after:

_test2:
         subq $8, %rsp
         movq %rdi, (%rsp)
         movsd (%rsp), %xmm0
         addq $8, %rsp
         ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37617 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 23:57:15 +00:00
Reid Spencer
a4d71f09ff Fix PR1517: 
Use SmallPtrSet instead of std::vector to eliminate duplicate uses in a
function generated with -gen-function. This prevents the output from having
multiple duplicate declarations of constants and gvals.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37616 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 20:48:27 +00:00
Reid Spencer
ab24b4cf70 Fix PR1516: 
When printing the uses of a function (-gen-function only), make sure to
include the constants referenced by intializers of global variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37615 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 20:33:24 +00:00
Nick Lewycky
8946fe1776 Call the correct function name. Patch from Stephane Letz. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37614 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 16:17:35 +00:00
Evan Cheng
e882fca902 Really turn if-converter loose: 
1. Consider all possible ifcvt cases at once. No longer restricted to bottom
   up iterative approach.
2. Sort all possible cases based on a cost function. Perform the most profitable
   ones first invalidate others that target the same blocks.
3. Fixed a number of bugs related to block duplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37613 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 09:34:52 +00:00
Bill Wendling
0c5c8d8f54 Testcase for MMX int to MMX register failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37612 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 06:31:47 +00:00
Bill Wendling
e81369f2a5 Fix a failure to bit_convert from integer GPR to MMX register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37611 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 06:17:31 +00:00
Owen Anderson
32bc789b6c Fix test/Transforms/GVNPRE/2007-06-15-InvokeInst.ll by ignoring all instructions that depend on invokes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37610 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 00:26:54 +00:00
Owen Anderson
981746b4d0 Testcase where GVNPRE was getting confused by invoke instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37609 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 00:25:10 +00:00
Tanya Lattner
24e5aada7d Codegen support (stripped out) for the annotate attribute. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37608 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 22:26:58 +00:00
Evan Cheng
a2acf840a7 Not every predicable block can be safely duplicated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37607 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 21:18:05 +00:00
Evan Cheng
d42e56e166 Instructions with unique labels or embedded jumptables cannot be duplicated during ifcvt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37606 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 21:15:00 +00:00
Evan Cheng
61a2598ebe Added CanBeDuplicated(). It returns true if an instruction can be safely duplicated (e.g. during ifcvt). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37605 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 21:13:54 +00:00
Tanya Lattner
bedcd3bb9d test case for annotate attribute 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37604 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 20:52:47 +00:00
Tanya Lattner
6d806e93ce Add local var annotation intrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37603 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 20:50:54 +00:00
Dan Gohman
0f0eb18add Fold a binary operator with constant operands when expanding code for a SCEV. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37602 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:21:55 +00:00
Chris Lattner
c2c28fc24c Fix CodeGen/X86/inline-asm-x-scalar.ll:test4, by retaining regclass info 
for tied register constraints.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37601 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:11:01 +00:00
Chris Lattner
71683d3520 make this test harder, include a tied register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37600 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:09:53 +00:00
Evan Cheng
bf9d02eaf6 MachineInstr::isPredicable() is no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37599 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:06:07 +00:00
Evan Cheng
2d7a47a5db No longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37598 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:05:13 +00:00
Duncan Sands
f40708223e Workaround for PR1508. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37597 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:04:19 +00:00