Evan Cheng
eaa91b0a1f
Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit.
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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
Chris Lattner
52387be1e0
If a function is vararg, never pass inreg arguments in registers. Thanks to
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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
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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
Evan Cheng
49892af264
Look for VECTOR_SHUFFLE that's identity operation on either LHS or RHS. This can happen before DAGCombiner catches it.
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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
Evan Cheng
c4047a8e96
Fix some fragile code wrt CFG edge updating.
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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.
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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
Devang Patel
7d97bf1429
Fix quotes in debug messages.
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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
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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
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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
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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.
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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.
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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
Evan Cheng
a1a878791b
Properly remove duplicate instructions as result of diamond if-conversion. Other bug fixes.
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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()
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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.
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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.
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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
Bill Wendling
a9e64f6f2d
Revert patch. It regresses:
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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
Evan Cheng
e882fca902
Really turn if-converter loose:
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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
e81369f2a5
Fix a failure to bit_convert from integer GPR to MMX register.
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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.
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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
Tanya Lattner
24e5aada7d
Codegen support (stripped out) for the annotate attribute.
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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.
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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.
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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
Dan Gohman
0f0eb18add
Fold a binary operator with constant operands when expanding code for a SCEV.
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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
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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
Evan Cheng
bf9d02eaf6
MachineInstr::isPredicable() is no longer needed.
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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
Duncan Sands
f40708223e
Workaround for PR1508.
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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
Dan Gohman
e19dd87598
Use SCEVConstant::get instead of SCEVUnknown::get to create an
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integer constant SCEV.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37596 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 18:00:55 +00:00
Owen Anderson
383bcb2e78
Fix test/Transforms/GVNPRE/2007-06-15-Looping.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37595 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 17:55:15 +00:00
Evan Cheng
9333545980
Extra edges are deleted later if needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37593 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 17:34:48 +00:00
Dan Gohman
d19534add9
Add a SCEV class and supporting code for sign-extend expressions.
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This created an ambiguity for expandInTy to decide when to use
sign-extension or zero-extension, but it turns out that most of its callers
don't actually need a type conversion, now that LLVM types don't have
explicit signedness. Drop expandInTy in favor of plain expand, and change
the few places that actually need a type conversion to do it themselves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37591 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 14:38:12 +00:00
Evan Cheng
2c8c3a4a0d
Allow small blocks to be duplicated to enable if-conversion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37590 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 07:36:12 +00:00
Chris Lattner
7cbe2ebb21
Generalize many transforms to work on ~ of vectors in addition to ~ of
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integer ops. This implements Transforms/InstCombine/and-or-not.ll
test3/test4, and finishes off PR1510
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37589 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 06:23:19 +00:00
Chris Lattner
cef4b53a3e
add a Constant::getAllOnesValue helper function, which works on integers
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AND vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37586 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 06:10:53 +00:00
Chris Lattner
e20b7bec02
Enhance BinaryOperator::isNot to support vector not.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37585 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 06:04:24 +00:00
Chris Lattner
003b6200df
Implement two xforms:
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1. ~(~X | Y) === (X & ~Y)
2. (A|B) & ~(A&B) -> A^B
This allows us to transform ~(~(a|b) | (a&b)) -> a^b.
This implements PR1510 for scalar values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37584 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 05:58:24 +00:00
Chris Lattner
041a6c9048
delete some obviously dead vector operations, which deletes a few thousand
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operations from Duraids example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37582 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 05:26:55 +00:00
Evan Cheng
bc198eeba6
No really, clear predcessors states.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37581 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-14 23:34:09 +00:00
Evan Cheng
e37e24331c
If BB is predicated, invalidate its predecessor(s) which would if-convert it. It needs to be re-analyzed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37580 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-14 23:13:19 +00:00
Dan Gohman
51eaa86758
Rename MVT::getVectorBaseType to MVT::getVectorElementType.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37579 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-14 22:58:02 +00:00
Dale Johannesen
318093b6f8
Do not treat FP_REG_KILL as terminator in branch analysis (X86).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37578 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-14 22:03:45 +00:00
Evan Cheng
b7c908bb81
Fix typo.
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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
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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.
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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.
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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
Christopher Lamb
a321125e8b
Add support to tablegen for specifying subregister classes on a per register class basis.
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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.
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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
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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
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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
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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