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2009-05-30(i64 (zext (srl GR32 8))) -> movzbl AH is not safe since srl 8 only clear ↵Evan Cheng
the top 8 bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72618 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-30Give embedded metadata its own type instead of relying on EmptyStructTy.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-30Add support for letting the client choose different flavors of NaNs. ↵Mike Stump
Testcase to be added in clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72606 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
2009-05-29Add placeholder for thumb2 stuffAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72593 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29Enable GVN Load PRE.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72589 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29Dan noticed that the verifier wasn't thoroughly checking uses ofDuncan Sands
invoke results (see the testcases). Tighten up the checking. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72586 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29just show the instruction, its not that slow.Torok Edwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72577 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29for instructions with void type we have no choice but print the instruction asTorok Edwin
is, otherwise we get a <badref>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72567 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29Add a DEBUG() output to GVN that prints the instruction clobbering a load.Torok Edwin
This is useful when trying to figure out why GVN didn't eliminate redundant loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72565 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29Fix an issue where phiMap was not being updated properly when doing load PRE.Owen Anderson
Diagnosis and patch thanks to Jakub Staszak. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72562 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-29More h-registers tricks: folding zext nodes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72558 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
2009-05-28The MONITOR and MWAIT instructions have insufficient information forBill Wendling
decoding. Essentially, they both map to the same column in the "opcode extensions for one- and two-byte opcodes" table in the x86 manual. The RawFrm complicates decoding this. Instead, use opcode 0x01, prefix 0x01, and form MRM1r. Then have the code emitter special case these, a la [SML]FENCE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72556 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
2009-05-28Fix MOVMSKPDrr encoding.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72535 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Fix PSIGND encoding bug. Patch by Sean Callanan.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72534 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
2009-05-28Emit debug info for locals with proper scope.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72531 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
2009-05-28Mark the branch insns correctly.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72529 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Fixing problems that got exposed after the refactoring of LegalizeDAG done ↵Sanjiv Gupta
in 72447. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72521 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
2009-05-28Return the operand rather than a null SDValue when the given SELECT_CC Eli Friedman
is actually legal. Part of LegalizeDAG cleanups. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72513 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28Use Operands.data() instead of &Operands[0] where Operands is a potentiallyNick Lewycky
empty SmallVector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72512 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
2009-05-28This patch brings the list of attributes in CPPBackend.cpp up to date with theJeffrey Yasskin
list in Attributes.h. It also reorders the CPPBackend list to match so that it's easier to see that it's complete. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72510 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
2009-05-28"The instructions MMX_PSADBWrm and MMX_PSADBWrr have opcode 0b11100000 (e0), butBill Wendling
the Intel manual (screenshot) says it should be 0b11110110 (f6). The existing encoding causes a disassembly conflict with MMX_PAVGBrm, which really should be 0f e0." Patch by Sean Callanan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72508 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
2009-05-27Revert 72493 and replace it with a more conservative fix, for now: don'tDan Gohman
rewrite the comparison if there is any implicit extension or truncation on the induction variable. I'm planning for IVUsers to eventually take over some of the work of this code, and for it to be generalized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72496 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Ger rid of some dead code.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27In ChangeCompareStride, when the stride to be reused is truncated toDan Gohman
a smaller type, promoted its offset back up to the type of the new comparison. This fixes PR4222. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72493 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Fix sfence jit encoding. Patch by Sean Callanan.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Added support for fround, fextend and FP_TO_SINTBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72483 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Minor fix for CMake build systemDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72480 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
2009-05-27Add braces around an array initializer.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72453 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Teach SCEVExpander to avoid creating over-indexed GEP indices whenDan Gohman
possible. For example, it now emits %p.2.ip.1 = getelementptr [3 x [3 x double]]* %p, i64 2, i64 %tmp, i64 1 instead of the equivalent but less obvious %p.2.ip.1 = getelementptr [3 x [3 x double]]* %p, i64 0, i64 %tmp, i64 19 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72452 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-27Teach BasicAliasAnalysis to understand constant gep indices that fallDan Gohman
beyond their associated static array type. I believe that this fixes a legitimate bug, because BasicAliasAnalysis already has code to check for this condition that works for non-constant indices, however it was missing the case of constant indices. With this change, it checks for both. This fixes PR4267, and miscompiles of SPEC 188.ammp and 464.h264.href. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72451 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
2009-05-27Don't abuse the quirky behavior of LegalizeDAG for XINT_TO_FP and Eli Friedman
FP_TO_XINT. Necessary for some cleanups I'm working on. Updated from the previous version (r72431) to fix a bug and make some things a bit clearer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72445 91177308-0d34-0410-b5e6-96231b3b80d8
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