Commit Graph

630 Commits

Author SHA1 Message Date
4df83ed159 Implement bottom-up fast-isel. This has the advantage of not requiring
a separate DCE pass over MachineInstrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107804 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 19:20:32 +00:00
f423a69839 Add X86FastISel support for return statements. This entails refactoring
a bunch of stuff, to allow the target-independent calling convention
logic to be employed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107800 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 18:32:53 +00:00
4c3fd9f92f Move FunctionLoweringInfo.h out into include/llvm/CodeGen. This will
allow target-specific fast-isel code to make use of it directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 16:01:37 +00:00
c9403659a9 Split the SDValue out of OutputArg so that SelectionDAG-independent
code can do calling-convention queries. This obviates OutputArgReg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 15:54:55 +00:00
c9af33c685 CanLowerReturn doesn't need a SelectionDAG; it just needs an LLVMContext.
SelectBasicBlock doesn't needs its BasicBlock argument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107712 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06 22:19:37 +00:00
0d881dabc1 Propagate debug loc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107710 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06 22:08:15 +00:00
598751ed25 random tidying
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107612 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-05 05:36:21 +00:00
f1e309eb48 Propagate the AlignStack bit in InlineAsm's to the
PrologEpilog code, and use it to determine whether
the asm forces stack alignment or not.  gcc consistently
does not do this for GCC-style asms; Apple gcc inconsistently
sometimes does it for asm blocks.  There is no
convenient place to put a bit in either the SDNode or
the MachineInstr form, so I've added an extra operand
to each; unlovely, but it does allow for expansion for
more bits, should we need it.  PR 5125.  Some
existing testcases are affected.
The operand lists of the SDNode and MachineInstr forms
are indexed with awesome mnemonics, like "2"; I may
fix this someday, but not now.  I'm not making it any
worse.  If anyone is inspired I think you can find all
the right places from this patch.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107506 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-02 20:16:09 +00:00
89496d0eb7 Rename CreateReg to CreateRegs, and MakeReg to CreateReg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107451 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-02 00:10:16 +00:00
ffda6bac11 Rename CreateRegForValue to CreateReg, and change its argument
from a Value to a Type, because it doesn't actually care about
the Value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107383 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 03:55:39 +00:00
28a173581c Reapply r106422, splitting the code for materializing a value out of
SelectionDAGBuilder::getValue into a helper function, with fixes to
use DenseMaps safely.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107371 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 01:59:43 +00:00
c25ad63766 Don't use operator[] here, because it's not desirable to insert a default
value if the search fails.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107368 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 01:33:21 +00:00
3f278ce999 Remove an unused variable. The call to getRoot has side-effects, so
this could break something (but doesn't seem to).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107295 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30 17:22:28 +00:00
37387d5288 use ArgOperand API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30 12:55:46 +00:00
90c64f4aac Remove initialized but otherwise unused variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107127 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29 11:22:26 +00:00
1784d160e4 The hasMemory argument is irrelevant to how the argument
for an "i" constraint should get lowered; PR 6309.  While
this argument was passed around a lot, this is the only
place it was used, so it goes away from a lot of other
places.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106893 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25 21:55:36 +00:00
b447c4e65b Remove variables which are assigned to but for which the value
is not used.  Spotted by gcc-4.6.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25 14:48:39 +00:00
0635f35114 use ArgOperand API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106836 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25 09:38:13 +00:00
deca052d9d Simplify this code; switch lowering shouldn't produce cases
which trivially fold away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106765 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-24 17:08:31 +00:00
8e0163ac1e Optimize the "bit test" code path for switch lowering in the
case where the bit mask has exactly one bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106716 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-24 02:06:24 +00:00
c7bd7b7f12 Revert r106422, which is breaking the non-fast-isel path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106423 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-21 16:02:28 +00:00
faeb0e7448 More changes for non-top-down fast-isel.
Split the code for materializing a value out of
SelectionDAGBuilder::getValue into a helper function, so that it can
be used in other ways. Add a new getNonRegisterValue function which
uses it, for use in code which doesn't want a CopyFromReg even
when FuncMap.ValueMap already has an entry for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106422 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-21 15:13:54 +00:00
e368b460a2 Eliminate unnecessary uses of getZExtValue().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 14:22:04 +00:00
9126c0d42a Keep track of incoming debug value of unused argument.
Radar 7927666.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105285 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01 19:59:01 +00:00
462f6b57b6 Reorder some code in SelectionDAGBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105105 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 17:53:24 +00:00
7451d3e09d SelectionDAG shouldn't have a FunctionLoweringInfo member. RegsForValue
shouldn't have a TargetLoweringInfo member. And FunctionLoweringInfo::set
doesn't needs its EnableFastISel argument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105101 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 17:03:36 +00:00
f75a7d3fbf Eliminate the restriction that the array size in an alloca must be i32.
This will help reduce the amount of casting required on 64-bit targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 01:14:11 +00:00
a65850230a back out 104862/104869. Can reuse stacksave after all. Very cool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104897 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 23:11:57 +00:00
084fb0ea32 hook ISD::STACKADDR to an intrinsic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 18:52:11 +00:00
23ff7cff52 Adjust eh.sjlj.setjmp to properly have a chain and to have an opcode entry in
ISD::. No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104734 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26 20:22:18 +00:00
5eb1951539 Implement eh.sjlj.longjmp for ARM. Clean up the intrinsic a bit.
Followups: docs patch for the builtin and eh.sjlj.setjmp cleanup to match
longjmp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-22 01:06:18 +00:00
16d8f8bd91 I got tired of VISIBILITY_HIDDEN colliding with the gcc enum. Rename it
to LLVM_LIBRARY_VISIBILITY and introduce LLVM_GLOBAL_VISIBILITY, which is
the opposite, for future use by dragonegg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103495 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 20:16:09 +00:00
7d9663c70b Fixes for Microsoft Visual Studio 2010, from Steven Watanabe!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103457 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 06:17:44 +00:00
02f0dbd97a Verify variable directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103305 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 22:04:20 +00:00
d47f3c803f Use getValue() for PHINodes when direct NodeMap access does not work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103126 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05 22:29:00 +00:00
5d11ea39f7 Don't pass SDValues by non-const reference unless they may be
modified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01 00:33:16 +00:00
95140a4cc1 Reorgnaize more switch code lowering to clean up some tricky
code, and to eliminate the need for the SelectionDAGBuilder
state to be live during CodeGenAndEmitDAG calls.

Call SDB->clear() before CodeGenAndEmitDAG calls instead of
before it, and move the CurDAG->clear() out of SelectionDAGBuilder,
which doesn't own the DAG, and into CodeGenAndEmitDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102814 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01 00:25:44 +00:00
1b40319eba Delete the EdgeMapping variable itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102810 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01 00:02:20 +00:00
719f6a9d9c Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102661 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 20:40:36 +00:00
a83ce98d5f DO not push DBG_VALUE machine instructions for inlined fuction arguments in entry block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102653 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 18:50:36 +00:00
a36acad67d Re-enable 102565 with fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102602 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 06:33:38 +00:00
16e4ace951 Temporarily disable my changes to unbreak the build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102590 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 03:34:19 +00:00
9e8a2b9346 Do not generate duplicate dbg_value instructions for function arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102585 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 01:40:30 +00:00
ee1d91a830 Avoid emitting a dbg_value machineinstr that's not going to be inserted into entry block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102581 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 01:23:55 +00:00
1deef27b0a Check Reg against zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102573 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29 00:59:34 +00:00
f38c6c89f1 tidy up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102558 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28 23:24:13 +00:00
2ad0fcf794 Replace r102368 with code that's less fragile. This creates DBG_VALUE instructions for function arguments early and insert them after instruction selection is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102554 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28 23:08:54 +00:00
0f9d952542 Ignore DBG_VALUE instructions that points to undef values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-27 20:54:45 +00:00
fc0b860bcc Revert a small part of 102372; this fixes at least one
of the dbg testsuite regressions.  I don't think this is
really the right fix; this change exposed an existing problem
upstream somewhere.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-27 02:10:05 +00:00
925965e6ba Remove crufty comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102380 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 20:48:54 +00:00