Reid Spencer
49068bf311
Improve error handling in the linker by:
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1. Eliminate redundant error messages. LinkInFile and LinkInArchive
already call the error() method in each case so there's no use
telling the user again that an item couldn't be linked in.
2. Improve the formatting of error messages (separating content).
3. Change the wording for the warning about unrecognized files. Make
it clear that the file is being ignored.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41121 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-16 07:47:30 +00:00
Evan Cheng
bc165e436b
Fix some kill info update bugs; add hidden option -disable-rematerialization to turn off remat for debugging.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41118 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-16 07:24:22 +00:00
Reid Spencer
af11dc00a0
Ensure that error messages a propagated from calls to LinkInModule so they get
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reported to the end user.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41117 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-16 07:23:37 +00:00
Lauro Ramos Venancio
c90f08936d
Implement FPOWI ExpandOp.
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Fix PR1287.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41112 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 22:13:27 +00:00
Anton Korobeynikov
ebf0303810
Properly use const qualifiers
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41111 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 21:12:30 +00:00
Evan Cheng
90a43c3ae3
If the source of a move is in spill slot, the reload may be folded to essentially a load from stack slot. It's ok to mark the stack slot value as available for reuse. But it should not be clobbered since the destination of the move is live.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41109 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 20:20:34 +00:00
Anton Korobeynikov
a2780e11ef
Move ReturnAddrIndex variable to X86MachineFunctionInfo structure. This fixed
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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.
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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
Devang Patel
7375bb9c8c
Dominance frontier is now required.
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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.
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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.
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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.
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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.
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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.
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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
b6ca4b370e
- If a def is dead, do not spill it.
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- 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
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.
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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.
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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.
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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
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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.
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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.
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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
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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.
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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
Evan Cheng
fff3e191b9
If a spilled value is being reused and the use is a kill, that means there are
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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
dc6be19859
If a rematerializable def is not deleted, i.e. it is also spilled, check if the
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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.
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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.
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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.
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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
549f27d307
Re-implement trivial rematerialization. This allows def MIs whose live intervals that are coalesced to be rematerialized.
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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.
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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.
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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.
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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.
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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.
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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.
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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
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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
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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
fe9d82a71b
Constant fold: getelementptr (i8* inttoptr (i64 1 to i8*), i32 -1)
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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.
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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
Devang Patel
98147a306e
Split loops and do CFG cleanup.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41029 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-12 07:02:51 +00:00
Reid Spencer
9626a9c700
Remove unused variables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41028 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-12 04:45:36 +00:00
Evan Cheng
ccb36a4f1b
No need to remove dead range from soon-to-be-dead live interval. Its val# may be out of whack.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41024 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-12 01:26:19 +00:00
Chris Lattner
001f7534e0
constant fold ptrtoint(inttoptr) with target data when available. This allows
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us to fold the entry block of PR1602 to false instead of:
br i1 icmp eq (i32 and (i32 ptrtoint (void (%struct.S*)* inttoptr (i64
1 to void (%struct.S*)*) to i32), i32 1), i32 0), label %cond_next, label
%cond_true
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41023 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 23:49:01 +00:00
Chris Lattner
8d2e88806b
Transform a load from an undef/zero global into an undef/global even if we
...
have complex pointer manipulation going on. This allows us to compile
stuff like this:
__m128i foo(__m128i x){
static const unsigned int c_0[4] = { 0, 0, 0, 0 };
__m128i v_Zero = _mm_loadu_si128((__m128i*)c_0);
x = _mm_unpacklo_epi8(x, v_Zero);
return x;
}
into:
_foo:
xorps %xmm1, %xmm1
punpcklbw %xmm1, %xmm0
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41022 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 18:48:48 +00:00
Chris Lattner
ace2e8ad0c
expand a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41021 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 18:19:07 +00:00
Chris Lattner
384f4a94f8
With evan's explicit flag representation, hopefully we will finally be
...
able to 3-addressify away stuff like this:
movl %ecx, %eax
decl %eax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41020 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 18:16:46 +00:00
Reid Spencer
ba28cb91c9
Fix a comment typo noticed by Sandro Magi.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41018 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 15:57:56 +00:00
Bill Wendling
01284b4d55
64-bit SSSE3 ops that use MMX registers don't require 16-byte alignment.
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Make a 'memop' pattern just for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41017 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 09:52:53 +00:00
Evan Cheng
4f8ff168de
Code to maintain kill information during register coalescing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41016 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-11 00:59:19 +00:00
Christopher Lamb
a1eb155e52
Use subregs to improve any_extend code generation when feasible.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41013 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-10 22:22:41 +00:00