Commit Graph

432 Commits

Author SHA1 Message Date
bf87e24917 Re-apply bottom-up fast-isel, with fixes. Be very careful to avoid emitting
a DBG_VALUE after a terminator, or emitting any instructions before an EH_LABEL.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107943 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 00:39:23 +00:00
f595141525 Revert 107840 107839 107813 107804 107800 107797 107791.
Debug info intrinsics win for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107850 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 01:00:56 +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
a4160c3434 Simplify FastISel's constructor by giving it a FunctionLoweringInfo
instance, rather than pointers to all of FunctionLoweringInfo's
members.

This eliminates an NDEBUG ABI sensitivity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107789 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 16:29:44 +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
ce5172098d Move ArgFlagsTy, OutputArg, and InputArg out of SelectionDAGNodes.h and
into a new header, TargetCallingConv.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107782 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 15:28:42 +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
f7a0c7bf8b Fix up -fstack-protector on linux to use the segment
registers.  Split out testcases per architecture and os
now.

Patch from Nelson Elhage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107640 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06 05:18:56 +00:00
13151432ed Change if-conversion block size limit checks to add some flexibility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106901 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25 22:42:03 +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
4e39e9da0f Reapply r106634, now that the bug it exposed is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106746 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-24 14:30:44 +00:00
cbe762b5d1 Revert r106263, "Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,"... it was causing both 'file' (with clang) and 176.gcc (with llvm-gcc) to be miscompiled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106634 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-23 17:09:26 +00:00
9a526495e0 Some targets don't require the fencing MEMBARRIER instructions surrounding
atomic intrinsics, either because the use locking instructions for the
atomics, or because they perform the locking directly. Add support in the
DAG combiner to fold away the fences.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106630 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-23 16:07:42 +00:00
b9cd499dec remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106628 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-23 15:49:18 +00:00
8a7f7426ee Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,
which is faster, simpler, and less surprising.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106263 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 01:05:21 +00:00
1cc3984148 Allow targets more controls on what nodes are scheduled by reg pressure, what for latency in hybrid mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-20 23:26:43 +00:00
211ffa1351 Code refactoring: pull SchedPreference enum from TargetLowering.h to TargetMachine.h and put it in its own namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-19 20:19:50 +00:00
06b666c705 Allow TargetLowering::getRegClassFor() to be called on illegal types. Also
allow target to override it in order to map register classes to illegal
but synthesizable types. e.g. v4i64, v8i64 for ARM / NEON.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15 02:18:07 +00:00
0ebf356ddf 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103768 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14 07:37:40 +00:00
b9c0e332b3 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103743 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13 23:25:21 +00:00
b21f5a5511 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103742 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13 23:01:26 +00:00
1e5a6c46b8 80 col violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103733 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13 20:14:58 +00:00
038df88e28 Trim #includes and forward declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 19:11:43 +00:00
ff7a562751 Implement a bunch more TargetSelectionDAGInfo infrastructure.
Move EmitTargetCodeForMemcpy, EmitTargetCodeForMemset, and
EmitTargetCodeForMemmove out of TargetLowering and into
SelectionDAGInfo to exercise this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 17:31:57 +00:00
419e4f9263 Remove the TargetLowering::getSubtarget() virtual function, which
was unused. TargetMachine::getSubtarget() is used instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 16:21:03 +00:00
af1d8ca44a Get rid of the EdgeMapping map. Instead, just check for BasicBlock
changes before doing phi lowering for switches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102809 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01 00:01:06 +00:00
962021bc7f - Move TargetLowering::EmitTargetCodeForFrameDebugValue to TargetInstrInfo and rename it to emitFrameIndexDebugValue.
- Teach spiller to modify DBG_VALUE instructions to reference spill slots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102323 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 07:38:55 +00:00
f822e733af Stop abusing EmitInstrWithCustomInserter for target-dependent
form of DEBUG_VALUE, as it doesn't have reasonable default
behavior for unsupported targets.  Add a new hook instead.
No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102320 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-25 21:33:54 +00:00
f81eca0ab9 Move HandlePHINodesInSuccessorBlocks functions out of SelectionDAGISel
and into SelectionDAGBuilder and FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102123 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22 20:46:50 +00:00
f0757b0edc Add more const qualifiers on TargetMachine and friends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 01:34:56 +00:00
7609017dc3 Because of the EMMS problem, right now we have to support
user-defined operations that use MMX register types, but
the compiler shouldn't generate them on its own.  This adds
a Synthesizable abstraction to represent this, and changes
the vector widening computation so it won't produce MMX types.
(The motivation is to remove noise from the ABI compatibility
part of the gcc test suite, which has some breakage right now.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101951 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 22:34:09 +00:00
d858e90f03 Use const qualifiers with TargetLowering. This eliminates several
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101635 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17 15:26:15 +00:00
e5b51ac770 More work to allow dag combiner to promote 16-bit ops to 32-bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101621 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17 06:13:15 +00:00
37f32ee7ff Eliminate an unnecessary SelectionDAG dependency in getOptimalMemOpType.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101531 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 20:11:05 +00:00
7f506a9c7f Fix this code to avoid implicit assumptions about the length of the array.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101530 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 20:08:45 +00:00
64b7bf71e8 Adding support for dag combiner to promote operations for profit. This requires target specific queries. For example, x86 should promote i16 to i32 when it does not impact load folding.
x86 support is off by default. It can be enabled with -promote-16bit.

Work in progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101448 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 06:14:10 +00:00
46510a73e9 Add const qualifiers to CodeGen's use of LLVM IR constructs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 01:51:59 +00:00
2520864773 Factor out EH landing pad code into a separate function, and constify
a bunch of stuff to support it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101273 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14 19:53:31 +00:00
c3b0c341e7 Avoid using f64 to lower memcpy from constant string. It's cheaper to use i32 store of immediates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100751 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08 07:37:57 +00:00
ed3a8067a6 unthread MMI from FastISel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100416 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05 06:05:26 +00:00
d850ac79b5 fastisel doesn't need DwarfWriter, remove some tendricles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05 02:19:28 +00:00
20adc9dc46 Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-04 03:10:48 +00:00
f28f8bc40e Correctly lower memset / memcpy of undef. It should be a nop. PR6767.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100208 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 19:36:14 +00:00
e754d3fb85 Revert r100191 since it breaks objc in clang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 18:43:02 +00:00
e33c848fa4 Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100191 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 18:04:15 +00:00
42642d06c9 Add comments about DstAlign and SrcAlign.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100132 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01 20:10:42 +00:00
94107ba9ce - Avoid using floating point stores to implement memset unless the value is zero.
- Do not try to infer GV alignment unless its type is sized. It's not possible to infer alignment if it has opaque type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100118 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01 18:19:11 +00:00
255f20f7f7 Fix sdisel memcpy, memset, memmove lowering:
1. Makes it possible to lower with floating point loads and stores.
2. Avoid unaligned loads / stores unless it's fast.
3. Fix some memcpy lowering logic bug related to when to optimize a
   load from constant string into a constant.
4. Adjust x86 memcpy lowering threshold to make it more sane.
5. Fix x86 target hook so it uses vector and floating point memory
   ops more effectively.
rdar://7774704


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100090 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01 06:04:33 +00:00
100f090add Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99948 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30 22:27:04 +00:00
808bab0169 Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99928 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30 20:55:56 +00:00