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60557 Commits

Author SHA1 Message Date
Bill Wendling 95f6ebcb37 Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe what 
the variable actually tracks.

N.B., several back-ends are using "HasCalls" as being synonymous for something
that adjusts the stack. This isn't 100% correct and should be looked into.

llvm-svn: 103802
 2010-05-14 21:14:32 +00:00
Devang Patel c87e867111 Test case for r103800. 
llvm-svn: 103801
 2010-05-14 21:04:45 +00:00
Dan Gohman 35dd005d22 Lowering of atomic instructions can result in operands being 
used more than once. If ISel had put a kill flag on one of them,
it's not valid to transfer the kill flag to each new instance.

llvm-svn: 103799
 2010-05-14 21:01:44 +00:00
Devang Patel e0a94bfe9f Add support to preserve type info for the variables that are removed by the optimizer. 
llvm-svn: 103798
 2010-05-14 21:01:35 +00:00
Jakob Stoklund Olesen 670492c8ee When verifying two-address instructions, check the following: 
- Kill is implicit when use and def registers are identical.
- Only virtual registers can differ.

Add a -verify-fast-regalloc to run the verifier before the fast allocator.

llvm-svn: 103797
 2010-05-14 20:28:32 +00:00
Kevin Enderby 7bc111f5a9 Fix so "int3" is correctly accepted, added "into" and fixed "int" with an 
argument, like "int $4", to not get an Assertion error.

llvm-svn: 103791
 2010-05-14 19:16:02 +00:00
Evan Cheng cfa7d02d6e Model VLD*_UPD and VLD*odd_UPD pair with REG_SEQUENCE. 
llvm-svn: 103790
 2010-05-14 18:54:59 +00:00
Daniel Dunbar 2493ddfe42 MC/Mach-O/x86_64: Darwin's special "signed_N" relocation types should only be 
used to replace a normal relocation, not a reference to a GOT entry.

llvm-svn: 103789
 2010-05-14 18:53:40 +00:00
Jakob Stoklund Olesen 4d5c1061e3 Simplify the handling of physreg defs and uses in RegAllocFast. 
This adds extra security against using clobbered physregs, and it adds kill
markers to physreg uses.

llvm-svn: 103784
 2010-05-14 18:03:25 +00:00
Dan Gohman 30e3db2ba3 Set isTerminator on TRAP instructions. 
llvm-svn: 103778
 2010-05-14 16:46:02 +00:00
Dan Gohman c56ca22616 Don't use isBarrier for the PowerPC sync instruction. isBarrier is for 
control barriers, not memory ordering barriers.

llvm-svn: 103777
 2010-05-14 16:42:16 +00:00
Dan Gohman 02d9947e60 Add mayLoad and mayStore flags to instructions which missed them. 
llvm-svn: 103776
 2010-05-14 16:34:55 +00:00
Dan Gohman 8d1bc79327 Use regular PassManager instead of FunctionPassManager in opt, since it 
isn't doing lazy streaming. This also fixes a missing doFinalization call.

llvm-svn: 103774
 2010-05-14 15:36:54 +00:00
Dan Gohman 1603b2e457 Use PassManagerBase, to give clients the option of using either 
FunctionPassManager or regular PassManager.

llvm-svn: 103773
 2010-05-14 15:35:10 +00:00
Dan Gohman 49a994db57 Add an isNodeHidden to the graph traits, to support definition of 
subgraph views.

llvm-svn: 103772
 2010-05-14 15:29:31 +00:00
Daniel Dunbar 148e876ac2 XFAIL the test I added with vg_leak, apparently it is the first and only llc 
-filetype=obj test, and -filetype=obj leaks a few objects. Added a FIXME, we
need to sort out the ownership model for the various MC objects.

llvm-svn: 103769
 2010-05-14 07:47:51 +00:00
Evan Cheng 3e51388e6a Get rid of the bit twiddling to read / set OpActions and ValueTypeActions. The small saving in memory isn't worth the increase in runtime and code complexity in my opinion. 
llvm-svn: 103768
 2010-05-14 07:37:40 +00:00
Daniel Dunbar 3439ed6324 Inline Asm: Ensure buffer is newline terminated to match how the text is printed. 
- This is a hack, but I can't decide the best place to handle this. Chris?

llvm-svn: 103765
 2010-05-14 04:31:50 +00:00
Jakob Stoklund Olesen ceb5a7ada2 Enable opportunistic coalescing 
llvm-svn: 103764
 2010-05-14 04:30:51 +00:00
Evan Cheng cd67c21407 Added a QQQQ register file to model 4-consecutive Q registers. 
llvm-svn: 103760
 2010-05-14 02:13:41 +00:00
Eric Christopher 9fb6bb07ca Add AsmParser support for darwin tbss directive. 
Nothing uses this yet.

llvm-svn: 103757
 2010-05-14 01:50:28 +00:00
Eric Christopher bc81885ff7 Fix a couple of typos. 
llvm-svn: 103756
 2010-05-14 01:38:54 +00:00
Nick Lewycky fbc1a76546 Fix typo. 
llvm-svn: 103755
 2010-05-14 01:02:48 +00:00
Daniel Dunbar 4bce748aa2 MC: Switch to completely lazy layout. 
- The eliminates the last major algorithmic problem with MC.

llvm-svn: 103754
 2010-05-14 00:51:14 +00:00
Daniel Dunbar 9abade1017 MC: Extend MCAsmLayout to explicitly track which fragments have been layed out, and enforce several invariants to LayoutFragment to ensure we only do layout in a sensible order. 
llvm-svn: 103753
 2010-05-14 00:37:21 +00:00
Daniel Dunbar 3eedc26e18 MC: Implicitly assign section addresses when the previous fragment is layed out. 
llvm-svn: 103752
 2010-05-14 00:37:17 +00:00
Daniel Dunbar 8f9d2266e6 MC: Switch MCFragment to storing the layout order index, not its index in the file. 
llvm-svn: 103751
 2010-05-14 00:37:14 +00:00
Daniel Dunbar a99a23b061 MC: Change LayoutSection() to only do the section initializiation. 
Also, elimminate MCAsmLayout::set*, which are no longer needed.

llvm-svn: 103750
 2010-05-14 00:37:11 +00:00
Evan Cheng ca21cc8b13 Fix comments. 
llvm-svn: 103749
 2010-05-14 00:21:45 +00:00
Jakob Stoklund Olesen 68c235bd4d Trust kill flags from isel and later passes. 
llvm-svn: 103748
 2010-05-14 00:02:23 +00:00
Jakob Stoklund Olesen 41f8dc897e Fix an embarrassing runtime regression for RegAllocFast. 
This loop is quadratic in the capacity for a DenseMap:

  while(!map.empty())
    map.erase(map.begin());

Instead we now do a normal begin() - end() iteration followed by map.clear().
That also has the nice sideeffect of shrinking the map capacity on demand.

llvm-svn: 103747
 2010-05-14 00:02:20 +00:00
Evan Cheng 670a4104a9 Adding a v8i64 512-bit vector type. This will be used to model ARM NEON intrinsics which translate into a pair of vld / vst instructions that can load / store 8 consecutive 64-bit (D) registers. 
llvm-svn: 103746
 2010-05-13 23:55:47 +00:00
Dale Johannesen 1ae94b9394 Implement a correct ui64->f32 conversion. The old 
one was subject to double rounding in extreme cases.

llvm-svn: 103744
 2010-05-13 23:50:42 +00:00
Evan Cheng 0adc50cd1a Eliminate use of magic numbers to access OpActions. It also has the effect of allowing more than 31 scalar value types. MAX_ALLOWED_VALUETYPE had already been updated to 64 a while back. 
llvm-svn: 103743
 2010-05-13 23:25:21 +00:00
Evan Cheng 2a26ec8d20 Fix up LoadExtActions, TruncStoreActions, and IndexedModeActions representation and setter and getter's so they will continue to work if the number of scalar ValueType's exceeds 31. 
llvm-svn: 103742
 2010-05-13 23:01:26 +00:00
Jakob Stoklund Olesen d74a564feb Clean up RegAllocFast debug output 
llvm-svn: 103739
 2010-05-13 20:43:17 +00:00
Daniel Dunbar b9f6ac094a MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile(). 
llvm-svn: 103738
 2010-05-13 20:40:12 +00:00
Dan Gohman c90f51c00b Teach MachineLICM and MachineSink how to clear kill flags conservatively 
when they move instructions.

llvm-svn: 103737
 2010-05-13 20:34:42 +00:00
Evan Cheng 83887a7d3a 80 col violation. 
llvm-svn: 103733
 2010-05-13 20:14:58 +00:00
Evan Cheng 2ca1bd119e Add comment about the pseudo registers QQ, each of which is a pair of Q registers. 
llvm-svn: 103731
 2010-05-13 20:02:08 +00:00
Bob Wilson 208dc08c2b Fix pr7110: For non-Darwin targets UnspilledCS1GPRs may include high registers. 
Do not use those for Thumb1 functions.

llvm-svn: 103730
 2010-05-13 19:58:24 +00:00
Oscar Fuentes 82135e5a2f CMake: fixes 64 bit Visual Studio IDE build. Fixes bug 4936. 
Patch by Dimitry Andric!

llvm-svn: 103727
 2010-05-13 19:34:06 +00:00
Dan Gohman 7767d2747b Add a utility function for conservatively clearing kill flags, and make 
use of it in MachineCSE.

llvm-svn: 103726
 2010-05-13 19:24:00 +00:00
Dan Gohman 5b510c1474 An Instruction has a trivial kill only if its use is in the same 
basic block.

llvm-svn: 103725
 2010-05-13 19:19:32 +00:00
Daniel Dunbar 454ea716a3 MC: Factor out MCAssembler::ComputeFragmentSize. 
llvm-svn: 103724
 2010-05-13 18:35:06 +00:00
Daniel Dunbar 2842f25625 Fix const ilist_node::get{Prev,Next}Node() to actually compile. Picky, picky. 
llvm-svn: 103723
 2010-05-13 18:35:02 +00:00
Jakob Stoklund Olesen 3e0ddc000c Fix complete badness in bugpoint's IsARMArchitecture() function. 
The revision history for this function is interesting, with multiple layers of
wrongness being introduced one at a time.

This fixes a weird issue where bugpoint -run-llc would suddenly exit 13 half way
through isolating a miscompilation.

llvm-svn: 103721
 2010-05-13 17:58:15 +00:00
Nick Lewycky 23b545ca4b Actually run the test. Thanks Daniel Dunbar! 
llvm-svn: 103720
 2010-05-13 17:41:06 +00:00
Daniel Dunbar 484c6fc825 MC: Add section layout order indices to MCSectionData. 
llvm-svn: 103715
 2010-05-13 15:17:26 +00:00
Rafael Espindola ba3398bb1a Add an also-emit-llvm option to the gold plugin. 
llvm-svn: 103714
 2010-05-13 13:39:31 +00:00