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Author SHA1 Message Date
Anton Korobeynikov
a2780e11ef Move ReturnAddrIndex variable to X86MachineFunctionInfo structure. This fixed 
hard to catch bugs with retaddr lowering


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41104 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 17:12:32 +00:00
Chris Lattner
d42b8be3da add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41103 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 16:58:38 +00:00
Dan Gohman
ca250de09f svn propdel the svn:mime-type property of application/x-troff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41102 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 14:03:58 +00:00
Dan Gohman
64d8e1b9a7 This test used "wc | grep ..."; convert it to use the count script. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41101 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 13:55:47 +00:00
Dan Gohman
43c3db37f6 Convert tests using "grep -c ... | grep ..." to use the count script. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41100 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 13:49:33 +00:00
Dan Gohman
e5ab8c6765 Delete extraneous uses of wc -l. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41099 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 13:45:35 +00:00
Dan Gohman
52f11f7c88 Convert another test to use the count script. This one didn't fit the 
regex used to convert all the others because the first '|' was on a
separate line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41098 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 13:42:36 +00:00
Dan Gohman
28beeeac4d Convert tests using "| wc -l | grep ..." to use the count script. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41097 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 13:36:28 +00:00
Devang Patel
7375bb9c8c Dominance frontier is now required. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41096 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 03:34:53 +00:00
Devang Patel
5b8ec614f5 Cleanup removeBlocks. 
Use dominance frontier to fixup incoming edges of successor blocks not domianted by DeadBB.
Use df_iterator to walk and delete basic blocks dominated by DeadBB.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41095 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 03:31:47 +00:00
Reid Spencer
e9dd95ad9c Remove unneeded header file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41094 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 03:01:04 +00:00
Devang Patel
3fe4f2135a Avoid triangle loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41093 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 02:14:55 +00:00
Devang Patel
4f5d78e9c1 Break infinite loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41091 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:59:17 +00:00
Devang Patel
4e8061cbda Avoid nested loops at the moment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41090 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:53:57 +00:00
Evan Cheng
3b1d3068c3 New test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41087 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:34:50 +00:00
Evan Cheng
b6ca4b370e - If a def is dead, do not spill it. 
- If the defs of a spilled rematerializable MI are dead after the spill store is deleted, delete
  the def MI as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41086 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:25:37 +00:00
Evan Cheng
f65f11c384 Test case for PR1596. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41085 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:21:10 +00:00
Evan Cheng
dc5294fd83 Fix for PR1596: AdjustCopiesBackFrom() should conservatively check if any of its sub-registers may overlap with the interval of the copy that's being coalesced. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41084 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:19:28 +00:00
Evan Cheng
c91f0b8068 If a MI's def is remat as well as spilled, and the store is later deemed dead, mark the def operand as isDead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41083 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 20:23:13 +00:00
Devang Patel
a6a8663894 Fix dominance frontier update while removing blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41082 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 18:35:57 +00:00
Owen Anderson
31f496755a Eliminate PHI nodes with constant values during normal GVN processing, even when 
they're not related to eliminating a load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41081 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 18:33:27 +00:00
Owen Anderson
36057c7834 Be more aggressive in pruning unnecessary PHI nodes when doing PHI construction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41080 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 18:16:29 +00:00
Owen Anderson
3e75a42ee2 Make GVN iterative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41078 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 18:04:11 +00:00
Owen Anderson
8e8278e7fe Fix a case where GVN was failing to return true when it had, in fact, modified 
the function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41077 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 17:59:48 +00:00
Devang Patel
6d6403c287 Assert sooner. Fix wordings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41075 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 16:53:52 +00:00
Devang Patel
4d29ddfa06 No need to use iterator to erase basic block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41074 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 16:53:24 +00:00
Chris Lattner
b350b76a32 tcl seems to hate |& for some reason. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41073 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 16:19:35 +00:00
Chris Lattner
81e6fbe706 switch this to use fastcc to avoid fpstack traffic on x86-32. Switch to 
using the count script instead of wc -l


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41072 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 16:14:10 +00:00
Evan Cheng
606b91de6c Update test case. A spill should now be deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41070 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 09:16:00 +00:00
Evan Cheng
fff3e191b9 If a spilled value is being reused and the use is a kill, that means there are 
no more uses within the MBB and the spilled value isn't live out of the MBB.
Then it's safe to delete the spill store.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41069 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 09:11:18 +00:00
Evan Cheng
d24165aa71 Spiller reuse test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41068 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 05:51:03 +00:00
Evan Cheng
dc6be19859 If a rematerializable def is not deleted, i.e. it is also spilled, check if the 
spilled value is available for reuse.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41067 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 05:42:54 +00:00
Evan Cheng
430a7b0c94 Kill info update bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41064 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 01:56:58 +00:00
Devang Patel
ada054a9ea Handle last value assignments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41063 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 01:30:57 +00:00
Devang Patel
ebcb52aa89 StartValue is already calculated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41062 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 00:15:45 +00:00
Evan Cheng
1f808011e0 Now capable of rematerializing coalesced live intervals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41061 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 23:54:16 +00:00
Evan Cheng
549f27d307 Re-implement trivial rematerialization. This allows def MIs whose live intervals that are coalesced to be rematerialized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41060 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 23:45:17 +00:00
Evan Cheng
12914380ed Fix a typo pointd out by Maarten ter Huurne. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41059 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 23:27:11 +00:00
Devang Patel
21eca2a9cf Preserve simple analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41054 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 22:22:13 +00:00
Devang Patel
fc4c5f82f8 Preserve dominator info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41053 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 22:13:24 +00:00
Devang Patel
441c5ee6cf Add methods to erase basic block entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41052 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 22:10:29 +00:00
Devang Patel
6acc9e6b7b If NewBB dominates DestBB then DestBB is not part of NewBB's dominance frontier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41051 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 21:59:17 +00:00
Chris Lattner
17f218e001 move assertion into mutex guard, a partial fix for PR1606. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41050 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 20:08:16 +00:00
Dan Gohman
badb2d23d1 When x86 addresses matching exceeds its recursion limit, check to 
see if the base register is already occupied before assuming it can be
used. This fixes bogus code generation in the accompanying testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41049 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 20:03:06 +00:00
Chris Lattner
a45d9a15ba Fix PR1607 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41048 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 18:42:37 +00:00
Chris Lattner
d2953866d6 test that the ptr-to-method is succefully eliminated, leaving just the vtable dispatch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41047 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 17:17:03 +00:00
Chris Lattner
fe9d82a71b Constant fold: getelementptr (i8* inttoptr (i64 1 to i8*), i32 -1) 
Into: inttoptr (i64 0 to i8*)  -> null

This occurs in the example in PR1602.  With this fixed, we now compile
the example in PR1602 into fully "devirtualized" code:

define void @_Z1g1S(%struct.S* noalias  %s) {
entry:        %tmp131415 = getelementptr %struct.S* %s, i32 0, i32 0          ; <i32 (...)***> [#uses=1]        %tmp16 = load i32 (...)*** %tmp131415, align 4          ; <i32 (...)**> [#uses=1]
        %tmp26277 = load i32 (...)** %tmp16             ; <i32 (...)*> [#uses=1]
        %tmp2829 = bitcast i32 (...)* %tmp26277 to void (%struct.S*)*           ; <void (%struct.S*)*> [#uses=1]
        tail call void %tmp2829( %struct.S* %s )
        ret void
}

This still has the vtable dispatch (as required) but does not have any pointer
to method cruft left.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41046 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 17:09:08 +00:00
Evan Cheng
6047dd9280 Kill info update bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41043 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 07:12:23 +00:00
Reid Spencer
f6101ac7bc Make use of the llvm-ld tool's new ability to read input from stdin to extract 
the list of link time passes to be run, just as for opt, with the
-debug-pass=Arguments option.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41040 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 06:19:51 +00:00
Reid Spencer
5c1b53399f Don't build llvm-stub twice. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41039 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 00:25:47 +00:00