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Author SHA1 Message Date
Chris Lattner
653c0ccfbe document and hide two options. 
llvm-svn: 37651
 2007-06-19 05:47:49 +00:00
Chris Lattner
81e8a18e7c describe an argument, hide it. 
llvm-svn: 37650
 2007-06-19 05:46:06 +00:00
Chris Lattner
6809b4b4fa silence a bogus warning Duraid ran into. 
llvm-svn: 37649
 2007-06-19 05:43:49 +00:00
Owen Anderson
4a0cde1b5b Add a new testcase for memory corruption issues. 
llvm-svn: 37648
 2007-06-19 05:41:22 +00:00
Owen Anderson
f74f94d859 Be careful to erase values from all of the appropriate sets when they're not needed anymore. This fixes a few more memory-related issues. 
llvm-svn: 37647
 2007-06-19 05:37:32 +00:00
Owen Anderson
d3d1716516 Remember to clear the maximal sets between functions. 
Thanks to Nicholas for valgrinding this.

llvm-svn: 37646
 2007-06-19 04:32:55 +00:00
Owen Anderson
dc858f6498 Refactor GVNPRE to use a much smart method of uniquing value sets, and centralize a lot of the value numbering information. No functionality change. 
llvm-svn: 37645
 2007-06-19 03:31:41 +00:00
Dan Gohman
b60d8a92c9 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.

llvm-svn: 37644
 2007-06-19 01:48:05 +00:00
Evan Cheng
12b3002673 Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
llvm-svn: 37643
 2007-06-19 01:26:51 +00:00
Evan Cheng
4358a7f1e9 Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
llvm-svn: 37642
 2007-06-19 01:21:41 +00:00
Chris Lattner
e13fac05d7 If a function is vararg, never pass inreg arguments in registers. Thanks to 
Anton for half of this patch.

llvm-svn: 37641
 2007-06-19 00:13:10 +00:00
Chris Lattner
68f9f9fa3b add isVarArg to CCState 
llvm-svn: 37640
 2007-06-19 00:11:09 +00:00
Chris Lattner
6e631d5d4f add isvararg tracking to CCState 
llvm-svn: 37639
 2007-06-19 00:10:25 +00:00
Chris Lattner
cff3e1bbe5 testcase for PR1513 
llvm-svn: 37638
 2007-06-19 00:08:42 +00:00
Evan Cheng
f1397aafd9 New test case: identity operation of RHS / LHS of a VECTOR_SHUFFLE. 
llvm-svn: 37637
 2007-06-19 00:06:08 +00:00
Evan Cheng
80f0d5ae45 Look for VECTOR_SHUFFLE that's identity operation on either LHS or RHS. This can happen before DAGCombiner catches it. 
llvm-svn: 37636
 2007-06-19 00:02:56 +00:00
Tanya Lattner
e662c7928b Update docs for llvm.var.annotation intrinsic. 
llvm-svn: 37635
 2007-06-18 23:42:37 +00:00
Evan Cheng
b752a87db1 Fix some fragile code wrt CFG edge updating. 
llvm-svn: 37634
 2007-06-18 22:44:57 +00:00
Evan Cheng
978058bcd7 Move CorrectExtraCFGEdges() from BranchFolding.cpp to a MachineBasicBlock method. 
llvm-svn: 37633
 2007-06-18 22:43:58 +00:00
Tanya Lattner
fedfcab2ab 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.

llvm-svn: 37632
 2007-06-18 22:23:39 +00:00
Chris Lattner
80de50ac63 add helper 
llvm-svn: 37631
 2007-06-18 21:50:49 +00:00
Devang Patel
f57b9f4d5d Fix quotes in debug messages. 
llvm-svn: 37630
 2007-06-18 21:32:29 +00:00
Chris Lattner
5b93ff84b9 make ComputeTopDownOrdering significantly faster and use less stack space 
by making it non-recursive

llvm-svn: 37629
 2007-06-18 21:28:10 +00:00
Dan Gohman
5db3ad4b32 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.

llvm-svn: 37628
 2007-06-18 19:30:09 +00:00
Anton Korobeynikov
76361958e8 Make BasicAliasAnalysis correctly register itself. Patch by Devang 
llvm-svn: 37627
 2007-06-18 17:13:29 +00:00
Dan Gohman
46f036ccb0 Make chain dependencies blue, in addition to being dashed. 
llvm-svn: 37626
 2007-06-18 15:30:16 +00:00
Dan Gohman
bff1054303 Define the pushq instruction for x86-64. 
llvm-svn: 37625
 2007-06-18 14:12:56 +00:00
Dan Gohman
27de646c66 Add keyword explicit. 
llvm-svn: 37624
 2007-06-18 14:11:31 +00:00
Evan Cheng
b3cefc0824 Properly remove duplicate instructions as result of diamond if-conversion. Other bug fixes. 
llvm-svn: 37623
 2007-06-18 08:37:25 +00:00
Owen Anderson
58098f3560 Cache the results of dependsOnInvoke() 
llvm-svn: 37622
 2007-06-18 04:42:29 +00:00
Owen Anderson
8956588783 Fix indentation. 
llvm-svn: 37621
 2007-06-18 04:31:21 +00:00
Owen Anderson
c45b435273 Don't perform an expensive check if it's not necessary. 
llvm-svn: 37620
 2007-06-18 04:30:44 +00:00
Chris Lattner
4534df9032 ensure we don't regress on these tests. We generate aweful code in x86-32 for 
these though.

llvm-svn: 37619
 2007-06-17 23:29:57 +00:00
Bill Wendling
ad8326e004 XFAILing until I can fix properly. 
llvm-svn: 37618
 2007-06-16 23:57:51 +00:00
Bill Wendling
94f3474832 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

llvm-svn: 37617
 2007-06-16 23:57:15 +00:00
Reid Spencer
720cfb42c6 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.

llvm-svn: 37616
 2007-06-16 20:48:27 +00:00
Reid Spencer
c100a1ec63 Fix PR1516: 
When printing the uses of a function (-gen-function only), make sure to
include the constants referenced by intializers of global variables.

llvm-svn: 37615
 2007-06-16 20:33:24 +00:00
Nick Lewycky
d498cbd4a9 Call the correct function name. Patch from Stephane Letz. 
llvm-svn: 37614
 2007-06-16 16:17:35 +00:00
Evan Cheng
1732a41371 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.

llvm-svn: 37613
 2007-06-16 09:34:52 +00:00
Bill Wendling
e90b29f646 Testcase for MMX int to MMX register failure. 
llvm-svn: 37612
 2007-06-16 06:31:47 +00:00
Bill Wendling
a1f8f0aa97 Fix a failure to bit_convert from integer GPR to MMX register. 
llvm-svn: 37611
 2007-06-16 06:17:31 +00:00
Owen Anderson
0c8b051523 Fix test/Transforms/GVNPRE/2007-06-15-InvokeInst.ll by ignoring all instructions that depend on invokes. 
llvm-svn: 37610
 2007-06-16 00:26:54 +00:00
Owen Anderson
eb5063e92f Testcase where GVNPRE was getting confused by invoke instructions. 
llvm-svn: 37609
 2007-06-16 00:25:10 +00:00
Tanya Lattner
4c078c1ace Codegen support (stripped out) for the annotate attribute. 
llvm-svn: 37608
 2007-06-15 22:26:58 +00:00
Evan Cheng
759b3cca3c Not every predicable block can be safely duplicated. 
llvm-svn: 37607
 2007-06-15 21:18:05 +00:00
Evan Cheng
e6d0631c68 Instructions with unique labels or embedded jumptables cannot be duplicated during ifcvt. 
llvm-svn: 37606
 2007-06-15 21:15:00 +00:00
Evan Cheng
34a6cb0b2e Added CanBeDuplicated(). It returns true if an instruction can be safely duplicated (e.g. during ifcvt). 
llvm-svn: 37605
 2007-06-15 21:13:54 +00:00
Tanya Lattner
d0ed17d5fa test case for annotate attribute 
llvm-svn: 37604
 2007-06-15 20:52:47 +00:00
Tanya Lattner
203b1ae094 Add local var annotation intrinsic. 
llvm-svn: 37603
 2007-06-15 20:50:54 +00:00
Dan Gohman
1c73ccb4d3 Fold a binary operator with constant operands when expanding code for a SCEV. 
llvm-svn: 37602
 2007-06-15 19:21:55 +00:00