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2006-05-31commuteInstruction() does not always create a new MI!Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28592 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-31Eliminate a memory leak.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28585 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-31visitVBinOp: Can't fold divide by zero!Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28584 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-30Make sure the register pressure reduction schedulers work for non-uniformEvan Cheng
latency targets, e.g. PPC32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28561 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-30When a priority_queue is empty, the behavior of top() operator isEvan Cheng
non-deterministic. Returns NULL when it's empty! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28560 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-27Fix a nasty dag combiner bug that caused nondeterminstic crashes (MY FAVORITE!):Chris Lattner
SimplifySelectOps would eliminate a Select, delete it, then return true. The clients would see that it did something and return null. The top level would see a null return, and decide that nothing happened, proceeding to process the node in other ways: boom. The fix is simple: clients of SimplifySelectOps should return the select node itself. In order to catch really obnoxious boogs like this in the future, add an assert that nodes are not deleted. We do this by checking for a sentry node type that the SDNode dtor sets when a node is destroyed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28514 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-26Make CALL node consistent with RET node. Signness of value has type MVT::i32Evan Cheng
instead of MVT::i1. Either is fine except MVT::i32 is probably a legal type for most (if not all) platforms while MVT::i1 is not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28511 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-26Change RET node to include signness information of the return values. e.g.Evan Cheng
RET chain, value1, sign1, value2, sign2 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28509 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-25Turn on -sched-commute-nodes by default.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28465 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-25CALL node change: now including signness of every argument.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28461 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-24Patches to make the LLVM sources more -pedantic clean. Patch providedChris Lattner
by Anton Korobeynikov! This is a step towards closing PR786. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28447 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23-enable-unsafe-fp-math implies -enable-finite-only-fp-mathEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28437 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23Fix missing includeVladimir Prus
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28435 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23Incorrect SETCC CondCode used for FP comparisons.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28433 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-18lib/Target/Target.tdEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28386 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Fix the result of the call to use a correct vbitconvert. There is no need toChris Lattner
use getPackedTypeBreakdown at all here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28365 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Correct a previous patch which broke CodeGen/PowerPC/vec_call.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28364 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Another typo. Pointed out by Nate Begeman.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28353 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Fixed a LowerCallTo and LowerArguments bug. They were introducing illegalEvan Cheng
VBIT_VECTOR nodes. There were some confusion about the semantics of getPackedTypeBreakdown(). e.g. for <4 x f32> it returns 1 and v4f32, not 4, and f32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28352 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Fix an obvious bug in getPackedTypeBreakdown. Return 1 if type is legal.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28351 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17When we legalize target nodes, do not use getNode to create a new node,Chris Lattner
use UpdateNodeOperands to just update the operands! This is important because getNode will allocate a new node if the node returns a flag and this breaks assumptions in the legalizer that you can legalize some things multiple times and get exactly the same results. This latent bug was exposed by my ppc patch last night, and this fixes gsm/toast. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28348 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-17Add an assertion, avoid some unneeded work for each call. No functionalityChris Lattner
change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28347 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Add support for calls that pass and return legal vectors.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28340 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Add a new ISD::CALL node, make the default impl of TargetLowering::LowerCallToChris Lattner
produce it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28338 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16this should be 128 I thinkAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28330 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Move this code to a common placeAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28329 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Add a chain to FORMAL_ARGUMENTS. This is a minimal port of the X86 backend,Chris Lattner
it doesn't currently use/maintain the chain properly. Also, make the X86ISelLowering.cpp file 80-col clean. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28320 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Move function-live-in-handling code from the sdisel code to the scheduler.Chris Lattner
This code should be emitted after legalize, so it can't be in sdisel. Note that the EmitFunctionEntryCode hook should be updated to operate on the DAG. The X86 backend is the only one currently using this hook. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28315 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-16Legalize FORMAL_ARGUMENTS nodes correctly, we don't want to legalize them onceChris Lattner
for each argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28313 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13Fixing 2006-05-01-SchedCausingSpills.ll; some clean upEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28279 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13Revert an un-intended changeEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28278 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-13Merge identical code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28274 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12Remove dead varsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28255 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12remove dead varsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28254 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12Comment out dead variablesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28252 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12Compile:Chris Lattner
%tmp152 = setgt uint %tmp144, %tmp149 ; <bool> [#uses=1] %tmp159 = setlt uint %tmp144, %tmp149 ; <bool> [#uses=1] %bothcond2 = or bool %tmp152, %tmp159 ; <bool> [#uses=1] To setne, not setune, which causes an assertion fault. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28244 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12Refactor a bunch of includes so that TargetMachine.h doesn't have to includeOwen Anderson
TargetData.h. This should make recompiles a bit faster with my current TargetData tinkering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28238 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12Duh. That could take a long time.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28235 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12Two simplifications for token factor nodes: simplify tf(x,x) -> x.Chris Lattner
simplify tf(x,y,y,z) -> tf(x,y,z). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28233 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-12Add capability to scheduler to commute nodes for profit.Evan Cheng
If a two-address code whose first operand has uses below, it should be commuted when possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28230 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-11Refactor scheduler code. Move register-reduction list scheduler to aEvan Cheng
separate file. Added an initial implementation of top-down register pressure reduction list scheduler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28226 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-10Templatify RegReductionPriorityQueueEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28212 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09Fix PR773Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28207 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09Add pseudo dependency to force a def&use operand to be scheduled last (unlessEvan Cheng
the distance between the def and another use is much longer). This is under option control for now "-sched-lower-defnuse". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28201 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-09Debugging infoEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28200 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08Make the case I just checked in stronger. Now we compile this:Chris Lattner
short test2(short X, short x) { int Y = (short)(X+x); return Y >> 1; } to: _test2: add r2, r3, r4 extsh r2, r2 srawi r3, r2, 1 blr instead of: _test2: add r2, r3, r4 extsh r2, r2 srwi r2, r2, 1 extsh r3, r2 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28175 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08Implement and_sext.ll:test3, generating:Chris Lattner
_test4: srawi r3, r3, 16 blr instead of: _test4: srwi r2, r3, 16 extsh r3, r2 blr for: short test4(unsigned X) { return (X >> 16); } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28174 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08Compile this:Chris Lattner
short test4(unsigned X) { return (X >> 16); } to: _test4: movl 4(%esp), %eax sarl $16, %eax ret instead of: _test4: movl $-65536, %eax andl 4(%esp), %eax sarl $16, %eax ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28171 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08Fold shifts with undef operands.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28167 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-08When tracking demanded bits, if any bits from the sext of an SRA are demanded,Chris Lattner
then so is the input sign bit. This fixes mediabench/g721 on X86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28166 91177308-0d34-0410-b5e6-96231b3b80d8
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