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72ed88feac
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3353 Commits

Author SHA1 Message Date
Evan Cheng
72ed88feac Initilize the machine LICM CSE map upon the first time an instruction is hoisted to 
the loop preheader. Add instructions which are already in the preheader block that
may be common expressions of those that are hoisted out. These does get a few more
instructions CSE'ed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85799 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 08:09:49 +00:00
Evan Cheng
580e791ded Remove an irrelevant and poorly reduced test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85794 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 07:11:54 +00:00
Evan Cheng
7baae87d8f Unbreak ARMBaseRegisterInfo::copyRegToReg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85787 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 04:44:55 +00:00
Anton Korobeynikov
2ae0eec1c0 Handle splats of undefs properly. This includes the testcase for PR5364 as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85767 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 00:12:06 +00:00
Anton Korobeynikov
2e1da9fea4 64-bit FP loads & stores operate on both NEON and VFP pipelines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85765 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 00:11:06 +00:00
Evan Cheng
48d8afab73 Make use of imm12 version of Thumb2 ldr / str instructions more aggressively. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85743 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-01 21:12:51 +00:00
Evan Cheng
1107f03ef4 Fix tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85723 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-01 18:13:29 +00:00
Chris Lattner
43f44aa160 improve x86 codegen support for blockaddress. We now compile 
the testcase into:

_test1:                                                     ## @test1
## BB#0:                                                    ## %entry
	leaq	L_test1_bb6(%rip), %rax
	jmpq	*%rax
L_test1_bb:                                                 ## Address Taken
LBB1_1:                                                     ## %bb
	movb	$1, %al
	ret
L_test1_bb6:                                                ## Address Taken
LBB1_2:                                                     ## %bb6
	movb	$2, %al
	ret

Note, it is very very strange that BlockAddressSDNode doesn't carry 
around TargetFlags.  Dan, please fix this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85703 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-01 03:25:03 +00:00
Evan Cheng
de17fb6e4d Use cbz and cbnz instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85698 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 23:46:45 +00:00
Jim Grosbach
8cd0a8cb82 vml[as].f32 cause stalls in following advanced SIMD instructions. Avoid using 
them for scalar floating point operations for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 22:57:36 +00:00
Jim Grosbach
1820ec5e7a Consolidate test files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85696 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 22:20:56 +00:00
Jim Grosbach
91c0aebe68 Change to use FileCheck 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85695 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 22:16:14 +00:00
Jim Grosbach
0e5c9beeed Make tests more explicit about which instructions are expected. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85694 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 22:14:17 +00:00
Jim Grosbach
6b0b4b3eaf Grammar tweak to comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85693 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 22:12:44 +00:00
Jim Grosbach
199a4b4c70 Update test to be more explicit about what instruction sequences are expected for each operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85691 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 22:10:38 +00:00
Jim Grosbach
07d236ba88 Update test to be more explicit about what instruction sequences are expected for each operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85689 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 21:52:58 +00:00
Jim Grosbach
bcf2f2c159 Expand 64-bit logical shift right inline 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85687 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 21:42:19 +00:00
Jim Grosbach
b4a976c304 Expand 64-bit arithmetic shift right inline 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85685 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 21:00:56 +00:00
Benjamin Kramer
e3246fc6ab Force triple; darwin's ASM syntax differs from linux's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85676 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 19:54:06 +00:00
Jim Grosbach
c2b879fcfe Expand 64 bit left shift inline rather than using the libcall. For now, this 
is unconditional. Making it still use the libcall when optimizing for size
would be a good adjustment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85675 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 19:38:01 +00:00
Benjamin Kramer
823bdbc770 Add missing colons for FileCheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85674 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 19:22:24 +00:00
Jim Grosbach
4a26092248 Convert to FileCheck 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85673 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 19:06:53 +00:00
Evan Cheng
9eda68988e It's safe to remat t2LDRpci; Add PseudoSourceValue to load / store's to enable more machine licm. More changes coming. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85643 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 03:39:36 +00:00
Dan Gohman
c933acf096 Add a target triple so that this test behaves consistently across hosts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85640 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-31 00:15:28 +00:00
Dan Gohman
0437a06ea6 Fix the -mattr line for this test so that it passes on hosts that lack SSSE3. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85637 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-30 23:18:27 +00:00
Dan Gohman
0115e164ba Fix MachineLICM to use the correct virtual register class when 
unfolding loads for hoisting.  getOpcodeAfterMemoryUnfold returns the
opcode of the original operation without the load, not the load
itself, MachineLICM needs to know the operand index in order to get
the correct register class. Extend getOpcodeAfterMemoryUnfold to
return this information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85622 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-30 22:18:41 +00:00
Evan Cheng
3efabd316f I forgot to commit this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85608 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-30 20:03:40 +00:00
Rafael Espindola
c1382b745f This fixes functions like 
void f (int a1, int a2, int a3, int a4, int a5,...)

In ARMTargetLowering::LowerFormalArguments if the function has 4 or
more regular arguments we used to set VarArgsFrameIndex using an
offset of 0, which is only correct if the function has exactly 4
regular arguments.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85590 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-30 14:33:14 +00:00
Bob Wilson
2c04dae715 Reimplement BranchFolding change to avoid tail merging for a 1 instruction 
common tail, except when the OptimizeForSize function attribute is present.
Radar 7338114.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85441 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-28 22:10:20 +00:00
Dan Gohman
589f1f5a43 Teach MachineLICM to unfold loads from constant memory from 
otherwise unhoistable instructions in order to allow the loads
to be hoisted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-28 03:21:57 +00:00
Evan Cheng
39382427f1 Use fconsts and fconstd to materialize small fp constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-28 01:44:26 +00:00
Dan Gohman
a104d1eab2 Mark dead physregdefs dead immediately. This helps MachineSink and 
MachineLICM and other things which run before LiveVariables is run.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85360 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-28 01:13:53 +00:00
Dan Gohman
83f6120c9a Allow constants of different types to share constant pool entries 
if they have compatible encodings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85359 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-28 01:12:16 +00:00
Rafael Espindola
2bda533e1c Add missing testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85266 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-27 17:59:03 +00:00
Bob Wilson
37986053b4 Fix Thumb2 failures by converting them to FileCheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85210 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-27 06:31:02 +00:00
Bob Wilson
b9350315d2 Fix the rest of the ARM failures by converting them to FileCheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85208 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-27 06:16:45 +00:00
Bob Wilson
13e80bdb71 Fix some more failures by converting to FileCheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85207 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-27 05:50:28 +00:00
Bob Wilson
8bb080e71b Convert to FileCheck, fixing failure due to tab change in the process. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85204 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-27 05:30:47 +00:00
David Goodwin
2e7be612d5 Break anti-dependence breaking out into its own class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85127 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-26 16:59:04 +00:00
Dan Gohman
a8225083ba Make LSR's OptimizeShadowIV ignore induction variables with negative 
strides for now, because it doesn't handle them correctly. This fixes a
miscompile of SingleSource/Benchmarks/Misc-C++/ray.

This problem was usually hidden because indvars transforms such induction
variables into negations of canonical induction variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85118 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-26 15:32:57 +00:00
Evan Cheng
a5dc45e3c8 - Revert some changes from 85044, 85045, and 85047 that broke x86_64 tests and 
bootstrapping. It's not safe to leave identity subreg_to_reg and insert_subreg
  around.
- Relax register scavenging to allow use of partially "not-live" registers. It's
  common for targets to operate on registers where the top bits are undef. e.g.
  s0 =
  d0 = insert_subreg d0<undef>, s0, 1
  ...
     = d0
  When the insert_subreg is eliminated by the coalescer, the scavenger used to
  complain. The previous fix was to keep to insert_subreg around. But that's
  brittle and it's overly conservative when we want to use the scavenger to 
  allocate registers. It's actually legal and desirable for other instructions
  to use the "undef" part of d0. e.g.
  s0 =
  d0 = insert_subreg d0<undef>, s0, 1
  ...
  s1 =
     = s1
     = d0
  We probably need add a "partial-undef" marker on machine operand so the
  machine verifier would not complain.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85091 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-26 04:56:07 +00:00
Chris Lattner
1d871c5e54 fix PR5295 where the .ll parser didn't reject a function after a global 
or global after a function with conflicting names.  Update some testcases
that were accidentally depending on this behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85081 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-25 23:22:50 +00:00
Evan Cheng
21a45557c6 Add a couple of ARM cross-rc coalescing tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85051 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-25 08:01:41 +00:00
Evan Cheng
cc7a5b91de Update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85050 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-25 07:53:48 +00:00
Dan Gohman
7abbd04e90 APInt-ify the gep scaling code, so that it correctly handles the case where 
the scale overflows pointer-sized arithmetic. This fixes PR5281.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84954 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-23 17:57:43 +00:00
Evan Cheng
b6c215b63f Update tests for 84931. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-23 05:58:34 +00:00
David Goodwin
4c3715c2e5 Allow the target to select the level of anti-dependence breaking that should be performed by the post-RA scheduler. The default is none. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84911 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-22 23:19:17 +00:00
Bob Wilson
bac6ed4ba4 Revert 84843. Evan, this was breaking some of the if-conversion tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84868 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-22 16:52:21 +00:00
Evan Cheng
87689d3b70 Move if-conversion before post-regalloc scheduling so the predicated instruction get scheduled properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84843 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-22 06:48:32 +00:00
Evan Cheng
8000c6c535 Don't generate sbfx / ubfx with negative lsb field. Patch by David Conrad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-22 00:40:00 +00:00