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2009-02-02DebugLoc propagation for int<->fp conversions.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Refactor PerformPHIConstruction, no functionality changes.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63536 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02xfail this for now, will fix shortly.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63533 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02update testChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63532 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Reposition the DebugLoc field to reduce padding spaceDan Gohman
on LP64 hosts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63530 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Fix a bug which caused us to miscompile a couple of AdaChris Lattner
tests. Thanks for the beautiful reduced testcase Duncan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63529 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Do not add redundant arguments in a method definition DIE.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63527 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Make this test case smaller.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63526 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Duncan's patch. Further to 64382. Takes care of illegal types for shift amount.Sanjiv Gupta
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63523 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Made the common case of default address space directive as non-virtual for ↵Sanjiv Gupta
performance reasons. Provide a single virtual interface for directives of all sizes in non-default address spaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63521 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Fix a comment (bytes -> bits), reformat a commentDuncan Sands
and remove trailing whitespace. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63511 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Fix an obvious thinko.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02ADD / SUB / SMUL / UMUL with overflow second result top bits must be zero.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02This passes on x86-32 linux at least.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63508 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Make the XFAIL line actually match x86-32 targets.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63507 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Add comment.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63506 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Teach LowerBRCOND to recognize (xor (setcc x), 1). The xor inverts the ↵Evan Cheng
condition. It's normally transformed by the dag combiner, unless the condition is set by a arithmetic op with overflow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63505 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02reject things like: zext <4 x i32> %tmp to i256Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63504 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02validation error fix.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63503 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Document type upreferences (PR3380), patch by Stein Roger SkafløttenChris Lattner
with enhancements and corrections by me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63502 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Fix PR3372Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02reduce indentation, (~XorCST->getValue()).isSignBit() -> isMaxSignedValue()Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02reduce testcase.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63499 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Preserve more SourceValue information.Mon P Wang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63498 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01add 2 more testcases for -mattr=-sse (r63495).Torok Edwin
--This line, and those below, will be ignaored-- A test/CodeGen/X86/nosse-error1.ll A test/CodeGen/X86/nosse-error2.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63496 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Implement -mno-sse: if SSE is disabled on x86-64, don't store XMM on stack forTorok Edwin
var-args, and don't allow FP return values git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63495 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Fix PR3453 and probably a bunch of other potentialDuncan Sands
crashes or wrong code with codegen of large integers: eliminate the legacy getIntegerVTBitMask and getIntegerVTSignBit methods, which returned their value as a uint64_t, so couldn't handle huge types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Forgot some more DebugLoc propagations.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63493 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Fix test failures causes by my previous commit.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63492 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Fix an issue in PHI construction that was exposed by GCC 4.2 producing a ↵Owen Anderson
different set iteration order for the reg_iterator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63490 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Fix PR3423: Link llvm on ARM EABI machines. Patch by Robert Schuster.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63489 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31DebugLoc propagation.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Reinstate this optimization to fold icmp of xor when possible. Don't try toNick Lewycky
turn icmp eq a+x, b+x into icmp eq a, b if a+x or b+x has other uses. This may have been increasing register pressure leading to the bzip2 slowdown. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63487 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31DebugLoc propagation. Done with file.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63486 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31DebugLoc propagation. Done with file.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63485 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Fix PR3452 (an infinite loop bootstrapping) by disabling the recentChris Lattner
improvements to the EvaluateInDifferentType code. This code works by just inserted a bunch of new code and then seeing if it is useful. Instcombine is not allowed to do this: it can only insert new code if it is useful, and only when it is converging to a more canonical fixed point. Now that we iterate when DCE makes progress, this causes an infinite loop when the code ends up not being used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63483 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Fix PR3401: when using large integers, the typeDuncan Sands
returned by getShiftAmountTy may be too small to hold shift values (it is an i8 on x86-32). Before and during type legalization, use a large but legal type for shift amounts: getPointerTy; afterwards use getShiftAmountTy, fixing up any shift amounts with a big type during operation legalization. Thanks to Dan for writing the original patch (which I shamelessly pillaged). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31now that all the pieces are in place, teach instcombine'sChris Lattner
simplifydemandedbits to simplify instructions with *multiple uses* in contexts where it can get away with it. This allows it to simplify the code in multi-use-or.ll into a single 'add double'. This change is particularly interesting because it will cover up for some common codegen bugs with large integers created due to the recent SROA patch. When working on fixing those bugs, this should be disabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63481 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31simplify/clarify control flow and improve comments, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31make some fairly meaty internal changes to how SimplifyDemandedBits works.Chris Lattner
Now, if it detects that "V" is the same as some other value, SimplifyDemandedBits returns the new value instead of RAUW'ing it immediately. This has two benefits: 1) simpler code in the recursive SimplifyDemandedBits routine. 2) it allows future fun stuff in instcombine where an operation has multiple uses and can be simplified in one context, but not all. #2 isn't implemented yet, this patch should have no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63479 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31add accessorsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63478 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31minor cleanupsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31make sure to set Changed=true when instcombine hacks on the code,Chris Lattner
not doing so prevents it from properly iterating and prevents it from deleting the entire body of dce-iterate.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63476 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Used "-enable-unsafe-fp-math" to allow this transformation - (a * b -c) = c ↵Mon P Wang
- a *b. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63475 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31If unsafe FP optimization is not set, don't allow -(A-B) => B-A becauseMon P Wang
when A==B, -0.0 != +0.0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63474 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Don't use DebugLoc::getUnknownLoc(). Default to something hopefully sensible.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63473 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Simplify and generalize the SROA "convert to scalar" transformation toChris Lattner
be able to handle *ANY* alloca that is poked by loads and stores of bitcasts and GEPs with constant offsets. Before the code had a number of annoying limitations and caused it to miss cases such as storing into holes in structs and complex casts (as in bitfield-sroa) where we had unions of bitfields etc. This also handles a number of important cases that are exposed due to the ABI lowering stuff we do to pass stuff by value. One case that is pretty great is that we compile 2006-11-07-InvalidArrayPromote.ll into: define i32 @func(<4 x float> %v0, <4 x float> %v1) nounwind { %tmp10 = call <4 x i32> @llvm.x86.sse2.cvttps2dq(<4 x float> %v1) %tmp105 = bitcast <4 x i32> %tmp10 to i128 %tmp1056 = zext i128 %tmp105 to i256 %tmp.upgrd.43 = lshr i256 %tmp1056, 96 %tmp.upgrd.44 = trunc i256 %tmp.upgrd.43 to i32 ret i32 %tmp.upgrd.44 } which turns into: _func: subl $28, %esp cvttps2dq %xmm1, %xmm0 movaps %xmm0, (%esp) movl 12(%esp), %eax addl $28, %esp ret Which is pretty good code all things considering :). One effect of this is that SROA will start generating arbitrary bitwidth integers that are a multiple of 8 bits. In the case above, we got a 256 bit integer, but the codegen guys assure me that it can handle the simple and/or/shift/zext stuff that we're doing on these operations. This addresses rdar://6532315 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63469 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Move CurDebugLoc into SelectionDAGLowering.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63468 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31back out my previous change, it exposes a latent bug. investigatingGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63463 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31use precise accessorsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63459 91177308-0d34-0410-b5e6-96231b3b80d8
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