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85 Commits

Author SHA1 Message Date
Devang Patel
e75808cf3d Emit label for llvm.dbg.func.start of the inlined function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58814 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-06 21:28:20 +00:00
Dan Gohman
dd5b58ad7b FastISel support for exception-handling constructs. 
- Move the EH landing-pad code and adjust it so that it works
   with FastISel as well as with SDISel.
 - Add FastISel support for @llvm.eh.exception and
   @llvm.eh.selector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57539 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-14 23:54:11 +00:00
Chris Lattner
44d2a983b7 calls can be supported. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57428 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-13 01:59:13 +00:00
Dale Johannesen
23a98551ab Add a "loses information" return value to APFloat::convert 
and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-09 23:00:39 +00:00
Dan Gohman
1e9e8c3bd5 Avoid emitting redundant materializations of integer constants 
for things like null pointers, which at this level aren't
different from regular integer constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57265 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-07 22:03:27 +00:00
Dan Gohman
91b6f97ce4 Implement fast-isel support for zero-extending from i1. 
It turns out that this is a fairly common operation,
and it's easy enough to handle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56990 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-03 01:28:47 +00:00
Dan Gohman
d98d6203e4 Optimize conditional branches in X86FastISel. This replaces 
sequences like this:
       sete    %al
       testb   %al, %al
       jne     LBB11_1
with this:
       je      LBB11_1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56969 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-02 22:15:21 +00:00
Dan Gohman
5ec9efd61b Move the primary fast-isel top-level comments to FastISel.cpp, where 
they'll be a little more visible. Also, update and reword them a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56877 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 20:48:29 +00:00
Dan Gohman
5dd9c2e9ae Support for i1 XOR in FastISel. It is actually safe because 
i1 operands are assumed to already by zero-extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:22:52 +00:00
Dan Gohman
33134c4a75 FastISel support for debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 17:05:24 +00:00
Dan Gohman
dceffe66b9 Fix a recent fast-isel coverage regression - don't bail out before 
giving the target a chance to materialize constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-25 01:28:51 +00:00
Dan Gohman
d57dd5f4e6 Arrange for FastISel code to have access to the MachineModuleInfo 
object. This will be needed to support debug info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56508 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-23 21:53:34 +00:00
Dan Gohman
2ff7fd1461 Refactor X86SelectConstAddr, folding it into X86SelectAddress. This 
results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56371 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-19 22:16:54 +00:00
Dan Gohman
8211648757 FastISel support for i1 constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56068 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 21:01:08 +00:00
Dan Gohman
0586d91bb3 Add X86FastISel support for static allocas, and refences 
to static allocas. As part of this change, refactor the
address mode code for laods and stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56066 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-10 20:11:02 +00:00
Owen Anderson
0d95267e49 Clean this up, based on Evan's suggestions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56009 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 20:47:17 +00:00
Owen Anderson
baf37cd556 Check for type legality before materializing integer constants in fast isel. With this change, 
all of MultiSource/Applications passes on Darwin/X86 under FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55982 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 06:32:02 +00:00
Evan Cheng
59fbc80f6b Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55975 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-09 01:26:59 +00:00
Evan Cheng
5960e4eb68 Add fast isel physical register definition support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55892 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-08 08:38:20 +00:00
Evan Cheng
f09917847b Indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55880 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-07 09:04:52 +00:00
Owen Anderson
6e6074508c Revert r55859. This is breaking the build in the abscence of its companion commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 23:36:01 +00:00
Dan Gohman
638c6830c6 FastISel support for AND and OR with type i1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55846 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:44:22 +00:00
Dan Gohman
40b189e4e2 FastISel support for ConstantExprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55843 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 18:18:20 +00:00
Dan Gohman
087c8507e5 FastISel support for unreachable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55818 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 01:08:41 +00:00
Owen Anderson
95267a1e67 Add initial support for selecting constant materializations that require constant 
pool loads on X86 in fast isel.  This isn't actually used yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55814 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-05 00:06:23 +00:00
Dan Gohman
104e4ce162 Do trivial local CSE for constants and other non-Instruction values 
in FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:32:19 +00:00
Dan Gohman
3df24e667f Create HandlePHINodesInSuccessorBlocksFast, a version of 
HandlePHINodesInSuccessorBlocks that works FastISel-style. This
allows PHI nodes to be updated correctly while using FastISel.

This also involves some code reorganization; ValueMap and
MBBMap are now members of the FastISel class, so they needn't
be passed around explicitly anymore. Also, SelectInstructions
is changed to SelectInstruction, and only does one instruction
at a time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 23:12:08 +00:00
Owen Anderson
d5d81a457b Oops, I accidentally broke the fallback case with my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:51:57 +00:00
Owen Anderson
99aaf108cd Fix an issue where we were reusing materializations of constants in blocks not dominated by the materialization. This is 
the simple fix, materializing the constant before every use.  It might be better to either track domination of uses or
to materialize all constants and the beginning of the function and let remat sort when to do materialization at uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-03 17:37:03 +00:00
Evan Cheng
36fd941fc0 80 col violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55668 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-02 21:59:13 +00:00
Owen Anderson
cc54e76cc6 Fix an issue where a use might be selected before a def, and then we didn't respect the pre-chosen vreg 
assignment when selecting the def.  This is the naive solution to the problem: insert a copy to the pre-chosen
vreg.  Other solutions might be preferable, such as:
  1) Passing the dest reg into FastEmit_.  However, this would require the higher level code to know about reg classes, which they don't currently.
  2) Selecting blocks in reverse postorder.  This has some compile time cost for computing the order, and we'd need to measure its impact.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55555 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-30 00:38:46 +00:00
Dan Gohman
205d92589b Implement null and undef values for FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55500 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 21:19:07 +00:00
Owen Anderson
c0bb68b982 Hook up support for fast-isel of trunc instructions, using the newly working support for EXTRACT_SUBREG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55482 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 18:26:01 +00:00
Owen Anderson
40a468f249 FastEmitInst_extractsubreg doesn't need to be passed the register class. It can get it from MachineRegisterInfo instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-28 17:47:37 +00:00
Owen Anderson
8970f00def Add a helper method that will be used to support EXTRACT_SUBREG for selecting trunc's in fast-isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55439 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 22:30:02 +00:00
Dan Gohman
a318dabc0e Fix FastISel's bitcast code for the case where getRegForValue fails. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55431 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 20:41:38 +00:00
Owen Anderson
6336b70541 Use TargetLowering to get the types in fast isel, which handles pointer types correctly for our purposes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55428 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:58:30 +00:00
Dan Gohman
151ed61a2f Don't check TLI.getOperationAction. The FastISel way is to 
just try to do the action and let the tablegen-generated code
determine if there is target-support for an operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55427 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:15:05 +00:00
Dan Gohman
ad368ac2b5 Add a new FastISel method, getRegForValue, which takes care of 
the details of materializing constants and other values into
registers, and make use of it in several places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55426 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:10:19 +00:00
Dan Gohman
96a9999d79 Add a comment about the current floating-point constant code in FastISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55425 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 18:01:42 +00:00
Dan Gohman
10df0fa73e Basic FastISel support for floating-point constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55401 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 01:09:54 +00:00
Owen Anderson
96c5ea878c Fix handling of inttoptr and ptrtoint when unhandled operands are present. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55400 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 00:35:37 +00:00
Owen Anderson
9d5b416240 Add support for fast isel of inttoptr and ptrtoint in the cases where truncation is not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55399 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-27 00:31:01 +00:00
Owen Anderson
d0533c9998 Factor out a large amoutn of the cast handling code in fast isel into helper methods. 
This simultaneously makes the code simpler and adds support for sext as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55398 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 23:46:32 +00:00
Owen Anderson
97e2568f46 Add support for fast isel of zext. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55396 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 23:14:49 +00:00
Owen Anderson
13269335a5 Add support for fptosi of constants in fast isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55393 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 22:34:28 +00:00
Dan Gohman
763d89343b Refactor the bitcast code into its own function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55387 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 21:28:54 +00:00
Dan Gohman
80bc6e2243 Make FastISel use the correct argument type when casting GEP indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55384 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:57:08 +00:00
Dan Gohman
b71fea248f Don't select binary instructions with illegal types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55383 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:52:40 +00:00
Owen Anderson
a843b8d391 Add support for fast isel of sitofp, and remove some unnecessary and imprecise legality checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55381 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 20:37:00 +00:00