Commit Graph

45 Commits

Author SHA1 Message Date
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
Owen Anderson
77a218765a Use a combination of copyRegToReg and ISD::BIT_CONVERT when doing fast isel of bitcasts,
allowing it to support the full range of conversions people might ask for in a correct manner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55378 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 18:51:24 +00:00
Owen Anderson
940f83e772 Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy requested
was inserted or not.  This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55375 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 18:03:31 +00:00
Owen Anderson
46aa2f5aab Add support for fast isel of non-constant fptosi instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 17:44:42 +00:00
Owen Anderson
0f84e4e310 Add a RetVT parameter to emitted FastISel methods, so that we will be able to pass the desired return
type down.  This is not currently used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55345 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25 23:58:18 +00:00
Evan Cheng
b41aec5476 Unbreak build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55342 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25 22:20:39 +00:00
Owen Anderson
d894f1d274 Expand bitcast support in fast isel to support bitcasts of non-constant values by emitting reg-reg copies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55340 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25 21:32:34 +00:00
Owen Anderson
6d0c25ec3a Add support for fast isel of (integer) immediate materialization pattens, and use them to support
bitcast of constants in fast isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55325 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25 20:20:32 +00:00
Dan Gohman
6ecf50908c Make MBBMap a DenseMap instead of a std::map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55220 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-23 02:44:46 +00:00
Dan Gohman
3c8f36fd03 Reapply r55191 and r55192.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55205 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 21:28:19 +00:00
Bill Wendling
449416deb6 Reverting r55190, r55191, and r55192. They broke the build with this error message:
{standard input}:17:bad register name `%sil'
make[4]: *** [libgcc/./_addvsi3.o] Error 1
make[4]: *** Waiting for unfinished jobs....
{standard input}:23:bad register name `%dil'
{standard input}:28:bad register name `%dil'
make[4]: *** [libgcc/./_addvdi3.o] Error 1
{standard input}:18:bad register name `%sil'
make[4]: *** [libgcc/./_subvsi3.o] Error 1



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55200 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 20:51:05 +00:00
Dan Gohman
5ed3cbb753 Fix the InsertBranch call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55192 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 19:26:10 +00:00
Dan Gohman
e0182ec0e4 Support non-fallthrough unconditional branches in FastISel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55191 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 19:21:41 +00:00
Dan Gohman
3b7753be2e Add FastISel support for PHINodes. Machine PHI nodes
are not yet updated properly, but that's a separate
task.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 17:37:48 +00:00
Dan Gohman
22bb31103d Factor out the predicate check code from DAGISelEmitter.cpp
and use it in FastISelEmitter.cpp, and make FastISel
subtarget aware. Among other things, this lets it work
properly on x86 targets that don't have SSE, where it
successfully selects x87 instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55156 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 00:20:26 +00:00
Dan Gohman
f93cf79505 Have FastISel skip the multiply by 1 for getelementptr on i8*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21 17:37:05 +00:00
Dan Gohman
7a0e6593d0 MVT::getMVT uses iPTR for pointer types, while we need the actual
intptr_t type in this case. FastISel can now select simple
getelementptr instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55125 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21 17:25:26 +00:00
Dan Gohman
d5fe57d2f9 Basic fast-isel support for instructions with constant int operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55099 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21 01:41:07 +00:00
Evan Cheng
2076aa800e Type of first GEP operand is always the same as the target pointer type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55097 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21 01:19:11 +00:00
Dan Gohman
fd903944de Fix unused variable warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55089 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 23:53:10 +00:00
Evan Cheng
83785c8096 First cut, un-optimized (and untested) fast isel lowering of GetElementPtrInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 22:45:34 +00:00
Dan Gohman
f990b571c5 Simplify the BuildMI calls even more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55077 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 21:10:53 +00:00
Dan Gohman
bb466331e7 Simplify FastISel's constructor argument list, make the FastISel
class hold a MachineRegisterInfo member, and make the
MachineBasicBlock be passed in to SelectInstructions rather
than the FastISel constructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55076 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 21:05:57 +00:00
Dan Gohman
cb34cd7b5e Make more use of the BuildMI API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55072 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 18:16:32 +00:00
Dan Gohman
4cbe0662ab Minor code reorganization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55071 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 18:10:48 +00:00
Dan Gohman
77ad79689d Minor whitespace cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55070 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 18:09:38 +00:00
Dan Gohman
b7864a9e23 Fix 80 column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55069 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 18:09:02 +00:00
Dan Gohman
e6798b757a Fix FastISel to recognize that the last block in the function does
not have a fall-through successor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55033 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 01:17:01 +00:00
Dan Gohman
a7f2dff98e Fix FastISel to recognize unhandled operands, such as constants
that aren't available as virtual registers (for now).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 00:35:17 +00:00
Dan Gohman
8014e86580 Add FastISel support for floating-point operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55021 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 00:23:20 +00:00
Dan Gohman
bdedd44773 Add FastISel support for several more binary operators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55020 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-20 00:11:48 +00:00
Dan Gohman
6f2766d597 Support unconditional fall-through branches in FastISel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55014 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-19 22:31:46 +00:00
Dan Gohman
8133a52eb5 Use the BuildMI overload that sets up a destination register
instead of the one that doesn't and then adding it manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-19 20:46:54 +00:00
Dan Gohman
32155acb8a Handle the case where target-specific fastisel code doesn't have
a desired opcode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55005 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-19 20:43:22 +00:00
Dan Gohman
e285a74f7c Make FastISel's constructor protected, and give it a destructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54793 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 21:51:29 +00:00
Dan Gohman
b0cf29c5cf Initial checkin of the new "fast" instruction selection support. See
the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54751 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 20:19:35 +00:00