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2008-09-16Re-enables the new vector select in the bitcode reader, by modifying theDan Gohman
bitcode reader/writer as follows: - add and use new bitcode FUNC_CODE_INST_VSELECT to handle the llvm select opcode using either i1 or [N x i1] as the selector. - retain old BITCODE FUNC_CODE_INST_SELECT in the bitcode reader to handle select on i1 for backwards compatibility with existing bitcode files. - re-enable the vector-select.ll test program. Also, rename the recently added bitcode opcode FUNC_CODE_INST_VCMP to FUNC_CODE_INST_CMP2 and make the bitcode writer use it to handle fcmp/icmp on scalars or vectors. In the bitcode writer, use FUNC_CODE_INST_CMP for vfcmp/vicmp only. In the bitcode reader, have FUNC_CODE_INST_CMP handle icmp/fcmp returning bool, for backwards compatibility with existing bitcode files. Patch by Preston Gurd! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56233 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-15Teach ScalarEvolution to consider loop preheaders in the search forDan Gohman
an if statement that guards a loop, to allow indvars to avoid smax operations in more situations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56232 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-15Live intervals for live-in registers should begin at the beginning of a ↵Owen Anderson
basic block, not at the first instruction. Also, their valno's should have an unknown def. This has no effect currently, but was causing issues when StrongPHIElimination was enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56231 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-15Teach LSR to optimize away SMAX operations for tripcounts in commonDan Gohman
cases. See the comment above OptimizeSMax for the full story, and the testcase for an example. This cancels out a pessimization commonly attributed to indvars, and will allow us to lift some of the artificial throttles in indvars, rather than add new ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56230 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-15Fixed Bug 2751Bruno Cardoso Lopes
http://llvm.org/bugs/show_bug.cgi?id=2751 Abicall was enabled even when static code model was provided in the command line. The correct behavior is to disable abicall when static is specified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56228 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-15Re-enable SelectionDAG CSE for calls. It matters in the case ofDan Gohman
libcalls, as in this testcase on ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56226 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-15Correctly update kill infos after extending a live range and merge 2 val#'s; ↵Evan Cheng
fix 56165 - do not mark val# copy field if the copy does not define the val#. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56199 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-14Fix WriteAsOperand to not emit a leading space character. AdjustDan Gohman
its callers to emit a space character before calling it when a space is needed. This fixes several spurious whitespace issues in ScalarEvolution's debug dumps. See the test changes for examples. This also fixes odd space-after-tab indentation in the output for switch statements, and changes calls from being printed like this: call void @foo( i32 %x ) to this: call void @foo(i32 %x) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56196 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-14adjust last patch per review feedbackDale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56194 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Remove isImm(), isReg(), and friends, in favor of Dan Gohman
isImmediate(), isRegister(), and friends, to avoid confusion about having two different names with the same meaning. I'm not attached to the longer names, and would be ok with changing to the shorter names if others prefer it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56189 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Fix PR2792: treat volatile loads as writing memory somewhere.Duncan Sands
Treat stores as reading memory, just to play safe. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56188 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Fix random abort.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56184 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Define CallSDNode, an SDNode subclass for use with ISD::CALL.Dan Gohman
Currently it just holds the calling convention and flags for isVarArgs and isTailCall. And it has several utility methods, which eliminate magic 5+2*i and similar index computations in several places. CallSDNodes are not CSE'd. Teach UpdateNodeOperands to handle nodes that are not CSE'd gracefully. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56183 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Typo.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56182 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Rely on instruction format to determine so_reg operand for now.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56181 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Revert 56176. All those instruction formats are still needed.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56180 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Accidentially flipped the condition.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13Add debug dumps.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56178 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12Eliminate unnecessary instruction formats.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56176 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12Addrmode 1 S bit can be dynamically set. Look for CPSR def.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56172 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12Rewrite address mode 1 code emission routines.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56171 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12On some targets, non-move instructions can become move instructions because ↵Evan Cheng
of coalescing. e.g. vr2 = OR vr0, vr1 => vr2 = OR vr1, vr1 // after coalescing vr0 with vr1 Update the value# of the destination register with the copy instruction if that happens. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56165 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12Change ConstantSDNode and ConstantFPSDNode to use ConstantInt* andDan Gohman
ConstantFP* instead of APInt and APFloat directly. This reduces the amount of time to create ConstantSDNode and ConstantFPSDNode nodes when ConstantInt* and ConstantFP* respectively are already available, as is the case in SelectionDAGBuild.cpp. Also, it reduces the amount of time to legalize constants into constant pools, and the amount of time to add ConstantFP operands to MachineInstrs, due to eliminating ConstantInt::get and ConstantFP::get calls. It increases the amount of work needed to create new constants in cases where the client doesn't already have a ConstantInt* or ConstantFP*, such as legalize expanding 64-bit integer constants to 32-bit constants. And it adds a layer of indirection for the accessor methods. But these appear to be outweight by the benefits in most cases. It will also make it easier to make ConstantSDNode and ConstantFPNode more consistent with ConstantInt and ConstantFP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56162 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12Pass "earlyclobber" bit through to machineDale Johannesen
representation; coalescer and RA need to know about it. No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56161 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12Rename ConstantSDNode::getValue to getZExtValue, for consistencyDan Gohman
with ConstantInt. This led to fixing a bug in TargetLowering.cpp using getValue instead of getAPIntValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12Rather than marking all internal globals "Ref"Duncan Sands
when a readonly declaration is called, set a flag. This is faster and uses less memory. In theory it is less accurate, because before only those internal globals that were read by someone were being marked "Ref", but now all are. But in practice, thanks to other passes, all internal globals of the kind considered here will be both read and stored to: those only read will have been turned into constants, and those only stored to will have been deleted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56143 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12The sequence for ppcf128 compares was not IEEEDale Johannesen
safe in the presence of NaNs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56136 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11On 64-bit targets, change 32-bit getelementptr indices to be 64-bitDan Gohman
getelementptr indices, inserting an explicit cast if necessary. This helps expose the sign-extension operation to other optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56133 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Fix a vectorshuffle instcombine bug introduced by r55995.Dan Gohman
Patch by Nicolas Capens! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11udpate header comment: s/VP/VFP/Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56126 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11When tailcallopt is enabled all fastcc calls must have an aligned argument ↵Arnold Schwaighofer
stack size. Add a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56119 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Fix PR2748. Avoid coalescing physical register with virtual register which ↵Evan Cheng
would create illegal extract_subreg. e.g. vr1024 = extract_subreg vr1025, 1 ... vr1024 = mov8rr AH If vr1024 is coalesced with AH, the extract_subreg is now illegal since AH does not have a super-reg whose sub-register 1 is AH. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56118 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Fix a bug in ANY_EXTEND handling that was breaking 403.gcc on X86-64 in fast ↵Owen Anderson
isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56117 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Fix comment typo.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56116 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Intrinsics don't touch internal global variablesDuncan Sands
(unless passed one via a parameter), even if they are IntrWriteMem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56115 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Fix a copy+paste bug that Duncan spotted. For severalDan Gohman
cases it was still getting lucky and detecting overflow but it was clearly incorrect. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56113 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Fix PR2783 - coalescer bug. Missing a TargetRegisterInfo::isVirtualRegister ↵Evan Cheng
check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56112 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Intrinsics don't read these kinds of globalDuncan Sands
variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56105 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Fix a 80 column violation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56097 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11The version of AtomicSDNode::AtomicSDNode used (only) forDale Johannesen
cmp-and-swap reversed the Cmp and Swap arguments; comments make it clear this is unintentional. Unfortunately, the x86 BE had a compensating reversal, which is removed here. PPC is OK. From inspection of the Alpha code I think it is OK, but if somebody has that platform please check it out. I cannot test on that platform. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56091 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11If ISD::ANY_EXTEND fails, try ISD::ZERO_EXTEND and ISD::SIGN_EXTEND before ↵Owen Anderson
giving up. This fixes 445.gobmk on X86-64 in fast isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56088 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Succumb utterly to compatibility and implementDale Johannesen
__sync_fetch_and_nand as ANDC, even though that's not what nand means. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56087 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11Propagate subreg index when promoting a load to a copy.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11In my analysis for r56076 I missed the case where the originalDan Gohman
multiplication overflows. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56082 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10Fix an icmp+sdiv optimization to check for and handle an overflowDan Gohman
condition. This fixes PR2740. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56076 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10X86FastISel support for double->float and float->double casts.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56070 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10FastISel support for i1 PHI nodes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56069 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10FastISel support for i1 constants.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56068 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10Fix a bug in the coalescer where it didn't check if a live interval existed ↵Owen Anderson
before trying to manipulate it. This was exposed by fast isel's handling of shifts on X86-64. With this, FreeBench/pcompress2 passes on X86-64 in fast isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56067 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-10Add X86FastISel support for static allocas, and refencesDan Gohman
to static allocas. As part of this change, refactor the address mode code for laods and stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56066 91177308-0d34-0410-b5e6-96231b3b80d8
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