Owen Anderson
75fa96bb71
Add support for rematerialization in pre-alloc-splitting.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59587 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 04:28:29 +00:00
Dan Gohman
c2f9062ea4
Rearrange code to reduce the nesting level. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59580 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 02:00:32 +00:00
Bill Wendling
9173383e4e
Use dyn_cast instead of cast.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59577 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 01:25:41 +00:00
Bill Wendling
bccdcca7d1
Match an element of the return type if it returns a structure.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59576 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 01:15:05 +00:00
Devang Patel
fb5fd5a0bb
Remove unused variables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59570 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 00:22:02 +00:00
Devang Patel
b876cc193c
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59569 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 00:19:18 +00:00
Dan Gohman
06da2bc19f
Fix debug printing of flagged SDNodes in SUnits so that they
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print in the correct order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59567 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 00:04:44 +00:00
Evan Cheng
3a5b020292
Make the same change to RegScavenger::backward.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59566 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 23:54:01 +00:00
Bill Wendling
c5b795e8ce
Verify that the second parameter of the stacprotector intrinsic is an alloca
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instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59563 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 23:09:31 +00:00
Evan Cheng
63a431c670
We also need to keep the operand index for two address check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59562 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 22:56:19 +00:00
Evan Cheng
9c64bf3905
Register scavenger should process early clobber defs first. A dead early clobber def should not interfere with a normal def which happens one slot later.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59559 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 22:28:38 +00:00
Devang Patel
f17fc461d1
Add new helper pass that strips all symbol names except debugging information.
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This pass makes it easier to test wheter debugging info. influences optimization passes or not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59552 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 21:34:39 +00:00
Dan Gohman
c99da1348d
Don't set neverHasSideEffects on x86's divide instructions, since
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they trap on divide-by-zero, and this side effect is otherwise
unmodeled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59551 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 21:29:14 +00:00
Dan Gohman
1256f5fe76
Tidy up ScheduleNodeBottomUp methods, and make them more
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consistent with ScheduleNodeTopDown methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59550 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 21:22:20 +00:00
Dan Gohman
0454e8685f
Update a comment to reflect the current code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59549 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 21:14:44 +00:00
Duncan Sands
9a6b92de4c
Remove integer promotion support for FP_EXTEND
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and FP_ROUND. Not sure what these were doing
here - probably they were sometimes (wrongly)
created with integer operands somewhere that
has since been fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59548 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 21:13:59 +00:00
Devang Patel
4460a7e90c
Remove even more llvm.dbg variables.
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Remove all dead globals from llvm.metadata.
Ignore linkonce linkage for selected llvm.dbg values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59547 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 21:13:41 +00:00
Duncan Sands
c08468774b
Simplify code using helper routines. There is not
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supposed to be any functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59545 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 20:56:22 +00:00
Owen Anderson
5a92d4e657
Fix a bug introduced by my previous patch. With this change, SPEC is now clean with prealloc splitting enabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59544 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 20:53:59 +00:00
Dan Gohman
cbad42cfd1
Add more const qualifiers. This fixes build breakage from r59540.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59542 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 19:49:32 +00:00
Dan Gohman
b3b930a011
Make some methods const.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59540 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 19:04:29 +00:00
Devang Patel
4f3096b6af
Initialize MallocFunc and FreeFunc properly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59538 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 18:43:07 +00:00
Dan Gohman
3dbc4e3502
Whitespace cleanups.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59532 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 17:05:42 +00:00
Duncan Sands
331a746101
LegalizeTypes support for splitting and scalarizing
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SCALAR_TO_VECTOR. I didn't add the testcase, because
once llc gets past scalar-to-vector it hits a SPU target
lowering bug and explodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59530 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 16:40:48 +00:00
Nick Lewycky
dd643f26c4
Add a utility function that detects whether a loop is guaranteed to be finite.
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Use it to safely handle less-than-or-equals-to exit conditions in loops. These
also occur when the loop exit branch is exit on true because SCEV inverses the
icmp predicate.
Use it again to handle non-zero strides, but only with an unsigned comparison
in the exit condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59528 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 15:10:54 +00:00
Bill Wendling
5734450d40
Rename stackprotector_create intrinsic to stackprotector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59519 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 11:01:33 +00:00
Bill Wendling
9bef70609c
Cast to remove warning about comparing signed and unsigned.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59518 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 10:57:27 +00:00
Nicolas Geoffray
67c8c4caba
Implement support for JIT exceptions on X86_64. Relative offsets are
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encoded on 32 bytes, and the personality function is not encoded as
relative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 10:44:46 +00:00
Duncan Sands
130fea2ca0
Remove unused variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59515 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 10:39:04 +00:00
Duncan Sands
51d83fdd89
Reapply r59464, this time using the correct type
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when softening FNEG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59513 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 09:15:03 +00:00
Bill Wendling
733bbc5320
Remove the stackprotector_check intrinsic. Use a volatile load instead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59504 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 07:30:57 +00:00
Bill Wendling
c3348a77f7
- Use "moveAfter" instead of "remove/insert" of a basic block.
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- Use less indentation in coding.
- Shorten description.
- Update comments.
- Move code around
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59496 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 05:32:11 +00:00
Dan Gohman
6c2fe2237b
Fix a typo in a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59489 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 02:50:01 +00:00
Dan Gohman
3cc6243ddf
Change SUnit's dump method to take a ScheduleDAG* instead of
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a SelectionDAG*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59488 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 02:06:40 +00:00
Bill Wendling
8f55b3d67d
Revert r59464. It was causing this failure:
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Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll
Failed with signal(SIGABRT) at line 1
while running: llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/CodeGen/XCore/fneg.ll | llc -march=xcore > fneg.ll.tmp1.s
Assertion failed: (VT.isFloatingPoint() && "Cannot create integer FP constant!"), function getConstantFP, file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line 913.
0 llc 0x0092115c _ZN4llvm3sys18RemoveFileOnSignalERKNS0_4PathEPSs + 844
1 libSystem.B.dylib 0x9217809b _sigtramp + 43
2 ??? 0xffffffff 0x0 + 4294967295
3 libSystem.B.dylib 0x921f0ec2 raise + 26
4 libSystem.B.dylib 0x9220047f abort + 73
5 libSystem.B.dylib 0x921f2063 __assert_rtn + 101
6 llc 0x005a5b0a _ZN4llvm12SelectionDAG13getConmake[1]: *** [check-local] Error 1
make: *** [check] Error 2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59487 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 01:49:24 +00:00
Devang Patel
13877bf6c2
Give SIToFPInst preference over UIToFPInst because it is faster on platforms that are widely used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59476 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 00:40:02 +00:00
Dan Gohman
2d093f3560
Avoid using a loop in ReleasePred and ReleaseSucc methods to compute the
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new CycleBound value. Instead, just update CycleBound on each call.
Also, make ReleasePred and ReleaseSucc methods more consistent accross
the various schedulers.
This also happens to make ScheduleDAGRRList's CycleBound computation
somewhat more interesting, though it still doesn't have any noticeable
effect, because no current targets that use the register-pressure
reduction scheduler provide pipeline models.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59475 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 00:38:59 +00:00
Devang Patel
cd40233429
While handling floating point IVs lift restrictions on initial value and increment value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59471 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 23:27:13 +00:00
Devang Patel
84e3515974
Handle floating point ivs during doInitialization().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59466 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 21:32:02 +00:00
Dan Gohman
8123419f2b
Eliminate some trivial differences between the ScheduleNodeTopDown
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functions in these two schedulers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 21:31:02 +00:00
Duncan Sands
7fed65a68d
Add soft float support for a bunch more operations. Original
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patch by Richard Osborne, tweaked and extended by your humble
servant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59464 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 20:52:38 +00:00
Dan Gohman
e93483d855
Don't bother doing latency calculations in the "fast" scheduler.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59461 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 19:52:36 +00:00
Dan Gohman
2dcca9d53e
Use SUnit's CycleBound field instead of duplicating it in
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a side-car datastructure
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59458 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 19:45:19 +00:00
Dale Johannesen
a7647e68a4
Move some former testcases (low-probability codegen
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optimizations) into this wishlist.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59455 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 18:56:34 +00:00
Devang Patel
b8c564f72e
Let AnalyzeAlloca() remove debug intrinsics.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59454 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 18:37:53 +00:00
Richard Osborne
104de6cf7b
Don't produce ADDC/ADDE when expanding SHL unless they are legal
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for the target. This fixes PR3080.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59450 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 17:34:31 +00:00
Dan Gohman
6560c000a1
Don't use the isPending flag to mean what the isAvailable flag means.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59445 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 16:37:30 +00:00
Mon P Wang
28088d3c04
Fixed legalization of CONVERT_RNDSAT for integers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59432 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 00:41:12 +00:00
Torok Edwin
b079a391c8
If SI->size() is 0, we are not allowed to dereference ->begin().
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This fixed PR3078.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59416 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16 17:21:25 +00:00
Lang Hames
27601ef832
Big PBQP allocator update. Adds coalescing support, stack slot coloring, several bug-fixes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59414 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16 12:12:54 +00:00