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Author SHA1 Message Date
Evan Cheng
b7c908bb81 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37577 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 21:26:08 +00:00
Dan Gohman
c101e95cb6 Add a target hook to allow loads from constant pools to be rematerialized, and an 
implementation for x86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37576 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 20:50:44 +00:00
Evan Cheng
86ff296e63 Fix some stupid bugs that have effectively disabled if-conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37575 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 20:28:52 +00:00
Dan Gohman
af67ea7318 Eliminate some redundant newlines in asm output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37574 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 15:00:27 +00:00
Duncan Sands
41783f0bc7 Fix typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37573 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 11:27:07 +00:00
Christopher Lamb
a321125e8b Add support to tablegen for specifying subregister classes on a per register class basis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37572 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 22:20:15 +00:00
Dale Johannesen
13e8b51e3e Handle blocks with 2 unconditional branches in AnalyzeBranch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37571 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 17:59:52 +00:00
Duncan Sands
ea632439d4 Only correctly lower exception handing intrinsics if exception handling is 
turned on.  Likewise for scanning of invokes to mark landing pads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37570 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 16:53:21 +00:00
Dan Gohman
6595635175 Introduce new SelectionDAG node opcodes VEXTRACT_SUBVECTOR and 
VCONCAT_VECTORS. Use these for CopyToReg and CopyFromReg legalizing in
the case that the full register is to be split into subvectors instead
of scalars. This replaces uses of VBIT_CONVERT to present values as
vector-of-vector types in order to make whole subvectors accessible via
BUILD_VECTOR and EXTRACT_VECTOR_ELT.

This is in preparation for adding extended ValueType values, where
having vector-of-vector types is undesirable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37569 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 15:12:02 +00:00
Dan Gohman
2046e12f02 When creating CopyFromReg nodes, always use legal types. And use the 
correct types for the result vector, even though it is currently bitcasted
to a different type immediately.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37568 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 14:55:16 +00:00
Duncan Sands
f19f6bb31e The fix that was applied for PR1224 stops the compiler 
crashing but breaks exception handling.  The problem
described in PR1224 is that invoke is a terminator that
can produce a value.  The value may be needed in other
blocks.  The code that writes to registers values needed
in other blocks runs before terminators are lowered (in
this case invoke) so asserted because the value was not
yet available.  The fix that was applied was to do invoke
lowering earlier, before writing values to registers.

The problem this causes is that the code to copy values
to registers can be output after the invoke call.  If
an exception is raised and control is passed to the
landing pad then this copy-code will never execute.  If
the value is needed in some code path reached via the
landing pad then that code will get something bogus.

So revert the original fix and simply skip invoke values
in the general copying to registers code.  Instead copy
the invoke value to a register in the invoke lowering code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37567 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 05:51:31 +00:00
Evan Cheng
93a8e5ea0c Typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37566 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 00:04:00 +00:00
Evan Cheng
cc8fb46cdc Now if-converting all 4 variants of triangles. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37565 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 23:54:05 +00:00
Owen Anderson
71fcebcf8a Fix test/Transforms/GVNPRE/2007-06-12-PhiTranslate.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37564 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 22:43:57 +00:00
Owen Anderson
0f661dc957 Add a test where phi translation was producing a null result. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37563 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 22:42:35 +00:00
Devang Patel
d75405fe95 isReachableFromEntry() is not suitable for post dominator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37562 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 17:50:25 +00:00
Devang Patel
de6e132055 Remove redundant check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37561 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 17:35:20 +00:00
Devang Patel
6857e366f5 Protect updateDFSNumbers() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37560 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 17:30:56 +00:00
Devang Patel
5fd306bf0d Check A dominates B and vise versa first while searching for nearest 
common dominator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37559 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 17:17:57 +00:00
Chris Lattner
6c0955b9cb one final bugfix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37558 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 17:01:15 +00:00
Chris Lattner
a89e5f1fd5 modernize example 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37557 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 17:00:26 +00:00
Owen Anderson
239e71201e Refactor some code, and fix test/Transforms/GVNPRE/2007-06-12-NoExit.ll by being more careful when using 
post-dominator information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37556 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 16:57:50 +00:00
Owen Anderson
93f905daef Testcase where GVNPRE crashes on functions with no exit nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37555 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 16:56:00 +00:00
Dale Johannesen
ce0b23721e Sink CmpInst's to their uses to reduce register pressure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37554 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 16:50:17 +00:00
Devang Patel
9c7ee6b19f Make DFS number manipulation methods private. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37553 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 05:49:31 +00:00
Owen Anderson
7706d23399 Make the run line for this test correct. Thanks to Chris for spotting it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37552 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 04:40:48 +00:00
Devang Patel
4d42dea253 Break DominatorTree from ETNode. 
Remove unused PostETForest.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37551 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:54:38 +00:00
Owen Anderson
65d2862a60 Fix a few more bugs, including an instance of walking in reverse topological rather than topological order. This 
fixes a testcase extracted from llvm-test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37550 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:50:47 +00:00
Owen Anderson
95d5c34d3e Add a GVN-PRE basic regression test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37549 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:49:33 +00:00
Devang Patel
bdfa1f837c Use SmallPtrSet instaed of std::set 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37548 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:40:51 +00:00
Devang Patel
87f05a2416 Check immediate dominators first while searching for nearset common dominator. 
Fix 80 col violations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37547 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:35:38 +00:00
Devang Patel
3726b82a55 Maintain DFS number in DomTreeNode itself. 
This means now ETNodes are not useful anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37546 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:14:41 +00:00
Devang Patel
fe7d4e50b8 Add and use DominatorTreeBase::findNearestCommonDominator(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37545 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 23:31:22 +00:00
Lauro Ramos Venancio
976e2da081 Fix a typo in bswap lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37544 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 23:16:16 +00:00
Evan Cheng
9618bcaf7d Restructure code to reduce ifcvt compile time cost. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37543 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 22:26:22 +00:00
Devang Patel
f60e5a2cd9 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37542 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 21:45:31 +00:00
Devang Patel
b28aaadfff simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37541 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 21:25:31 +00:00
Devang Patel
e3f653606d Simplify. Dominator Tree is required so always available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37540 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 21:18:00 +00:00
Owen Anderson
0e71466405 Handle functions with multiple exit blocks properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37539 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 16:25:17 +00:00
Devang Patel
2099ff065d Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37538 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-11 15:40:48 +00:00
Reid Spencer
a9bf49c7e3 Fix the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37537 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-10 00:19:17 +00:00
Owen Anderson
139fe848a2 Perform PRE of comparison operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37536 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 18:35:31 +00:00
Chris Lattner
94c8d3de77 rename C files to end with .c 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37535 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 06:10:47 +00:00
Chris Lattner
fdbe720416 fix x86-64 mmx calling convention for real, which passes in integer gprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 05:08:10 +00:00
Chris Lattner
6b7c21cc30 fix mmx handling bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37533 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 05:01:50 +00:00
Nick Lewycky
ae5eb7accf Fix edge case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37532 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 04:20:33 +00:00
Evan Cheng
1c9f91d7b2 Don't change CFG during analysis stage. Do so during ifcvt and invalidate predecessors accordingly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37531 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 01:03:43 +00:00
Owen Anderson
b8b873cb7d Collect statistics from GVN-PRE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37530 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 22:02:36 +00:00
Evan Cheng
7e75ba802e Carefully remove extraneous CFG edges after each ifcvt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37529 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 22:01:07 +00:00
Evan Cheng
bfd2ec4a8e Add a utility routine to check for unpredicated terminator instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37528 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 21:59:56 +00:00