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2009-06-19mv CodeGen/DebugLoc.h Support/DebugLoc.hDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73786 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-19Minor cleanup; fixes review comments for a previous patch. Sorry for Eli Friedman
taking so long to get to this! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73757 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-16Fixed names of libcalls checked in r73480.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73483 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-16Added required libcalls for PIC16 (mostly floating points to integer casting ↵Sanjiv Gupta
operations). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-16Add some generic expansion logic for SMULO and UMULO. Fixes UMULO Eli Friedman
support for x86, and UMULO/SMULO for many architectures, including PPC (PR4201), ARM, and Cell. The resulting expansion isn't perfect, but it's not bad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-15Change this from an assert to a cerr+exit, since it's diagnosing anDan Gohman
unsupported inline asm construct, rather than verifying a code invariant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73435 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-15Gracefully handle imbalanced inline function begin and end markers.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-15CheckTailCallReturnConstraints is missing a check on theArnold Schwaighofer
incomming chain of the RETURN node. The incomming chain must be the outgoing chain of the CALL node. This causes the backend to identify tail calls that are not tail calls. This patch fixes this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73387 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-07Tweak the expansion code for BIT_CONVERT to generate better code Eli Friedman
converting from an MMX vector to an i64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73024 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-07Slightly generalize the code that handles shuffles of consecutive loads Eli Friedman
on x86 to handle more cases. Fix a bug in said code that would cause it to read past the end of an object. Rewrite the code in SelectionDAGLegalize::ExpandBUILD_VECTOR to be a bit more general. Remove PerformBuildVectorCombine, which is no longer necessary with these changes. In addition to simplifying the code, with this change, we can now catch a few more cases of consecutive loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73012 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-06Fix the expansion for CONCAT_VECTORS so that it doesn't create illegal Eli Friedman
types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72993 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-06Factor out a couple of helpers.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72992 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-06Make SINT_TO_FP/UINT_TO_FP vector legalization queries query on the Eli Friedman
integer type to be consistent with normal operation legalization. No visible change because nothing is actually using this at the moment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72980 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-05Add new function attribute - noimplicitfloatDevang Patel
Update code generator to use this attribute and remove NoImplicitFloat target option. Update llc to set this attribute when -no-implicit-float command line option is used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72959 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-05Adapt the x86 build_vector dagcombine to the current state of the legalizer.Nate Begeman
build vectors with i64 elements will only appear on 32b x86 before legalize. Since vector widening occurs during legalize, and produces i64 build_vector elements, the dag combiner is never run on these before legalize splits them into 32b elements. Teach the build_vector dag combine in x86 back end to recognize consecutive loads producing the low part of the vector. Convert the two uses of TLI's consecutive load recognizer to pass LoadSDNodes since that was required implicitly. Add a testcase for the transform. Old: subl $28, %esp movl 32(%esp), %eax movl 4(%eax), %ecx movl %ecx, 4(%esp) movl (%eax), %eax movl %eax, (%esp) movaps (%esp), %xmm0 pmovzxwd %xmm0, %xmm0 movl 36(%esp), %eax movaps %xmm0, (%eax) addl $28, %esp ret New: movl 4(%esp), %eax pmovzxwd (%eax), %xmm0 movl 8(%esp), %eax movaps %xmm0, (%eax) ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72957 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-05Allow libcalls for i16 sdiv/udiv/rem operations.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72941 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04Split the Add, Sub, and Mul instruction opcodes into separateDan Gohman
integer and floating-point opcodes, introducing FAdd, FSub, and FMul. For now, the AsmParser, BitcodeReader, and IRBuilder all preserve backwards compatability, and the Core LLVM APIs preserve backwards compatibility for IR producers. Most front-ends won't need to change immediately. This implements the first step of the plan outlined here: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04Fix FP_TO_UINT->i32 on ppc32 -mcpu=g5. This wasDale Johannesen
using Promote which won't work because i64 isn't a legal type. It's easy enough to use Custom, but then we have the problem that when the type legalizer is promoting FP_TO_UINT->i16, it has no way of telling it should prefer FP_TO_SINT->i32 to FP_TO_UINT->i32. I have uncomfortably hacked this by making the type legalizer choose FP_TO_SINT when both are Custom. This fixes several regressions in the testsuite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72891 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04Don't do the X * 0.0 -> 0.0 transformation in instcombine, becauseDan Gohman
instcombine doesn't know when it's safe. To partially compensate for this, introduce new code to do this transformation in dagcombine, which can use UnsafeFPMath. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72872 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04Fix comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72870 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-02Revert 72707 and 72709, for the moment.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72712 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-01Make the implicit inputs and outputs of target-independentDale Johannesen
ADDC/ADDE use MVT::i1 (later, whatever it gets legalized to) instead of MVT::Flag. Remove CARRY_FALSE in favor of 0; adjust all target-independent code to use this format. Most targets will still produce a Flag-setting target-dependent version when selection is done. X86 is converted to use i32 instead, which means TableGen needs to produce different code in xxxGenDAGISel.inc. This keys off the new supportsHasI1 bit in xxxInstrInfo, currently set only for X86; in principle this is temporary and should go away when all other targets have been converted. All relevant X86 instruction patterns are modified to represent setting and using EFLAGS explicitly. The same can be done on other targets. The immediate behavior change is that an ADC/ADD pair are no longer tightly coupled in the X86 scheduler; they can be separated by instructions that don't clobber the flags (MOV). I will soon add some peephole optimizations based on using other instructions that set the flags to feed into ADC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-31Rename CustomLowerResults to CustomLowerNode, sinceDuncan Sands
it is used both when a result is illegal and when an operand is illegal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72658 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-30Untabification.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72604 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Do not try to create a MVT type of width 0.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72557 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Re-commit r72514 and r72516 with a fixed version of BR_CC lowering. Eli Friedman
This patch removes some special cases for opcodes and does a bit of cleanup. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72536 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Incorporate patch feedbacks.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Temporarily revert r72514 (and dependent patch r72516). It was causing thisBill Wendling
failure during llvm-gcc bootstrap: Assertion failed: (!Tmp2.getNode() && "Can't legalize BR_CC with legal condition!"), function ExpandNode, file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp, line 2923. /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c:1727: internal compiler error: Abort trap Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72530 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Remove a couple of useless functions.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72516 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Remove special cases for more opcodes.Eli Friedman
This is basically the end of this series of patches for LegalizeDAG; the remaining special cases can't be removed without more infrastructure work. There's a FIXME for each relevant opcode near the beginning of SelectionDAGLegalize::LegalizeOp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72514 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Remove special case for SETCC opcode; add some comments explaining why Eli Friedman
some special cases are necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72511 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Some minor cleanups.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Added optimization that narrow load / op / store and the 'op' is a bit ↵Evan Cheng
twiddling instruction and its second operand is an immediate. If bits that are touched by 'op' can be done with a narrower instruction, reduce the width of the load and store as well. This happens a lot with bitfield manipulation code. e.g. orl $65536, 8(%rax) => orb $1, 10(%rax) Since narrowing is not always a win, e.g. i32 -> i16 is a loss on x86, dag combiner consults with the target before performing the optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72507 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Minor cleanups; add a better explanation for the issue with Eli Friedman
BUILD_VECTOR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72469 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Remove more special cases for opcodes.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72468 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Remove special cases for more opcodes.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72467 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Removing more special cases from LegalizeDAG.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72465 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Eliminate more special cases for opcodes.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72464 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Remove more special cases from LegalizeDAG.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72456 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Remove unused argument.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72455 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Remove more opcode special cases.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Start of refactoring LegalizeDAG so that we don't need specialized Eli Friedman
handling for every single opcode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72447 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-26Delete a bunch of dead code from LegalizeDAG.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72414 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-24Add a comment which should hopefully make the purpose of this method a Eli Friedman
bit clearer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72374 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-24Minor improvement to FCOPYSIGN to use BIT_CONVERT in cases where the Eli Friedman
corresponding integer type is legal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-24Rewrite ISD::FCOPYSIGN lowering to never use i64. Not really ideal, but Eli Friedman
it's late, and I don't have any better ideas at the moment. Fixes PR4257. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72363 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-24Update for CMakeLists; untested, so tell me if there are issues.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-24Remove checks of getTypeAction from LegalizeOp; we already assert that Eli Friedman
all results and all operands are legal, so this change shouldn't affect behavior at all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-24Disable type legalization in LegalizeDAG.Eli Friedman
This leaves around 4000 lines of dead code; I'll clean that up in subsequent commits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72358 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-23Fix a bug in the expansion of EXTRACT_SUBVECTOR in Eli Friedman
ExpandExtractFromVectorThroughStack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72351 91177308-0d34-0410-b5e6-96231b3b80d8
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