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* [PATCH] PowerPC: Expand load extend vector operationsAdhemerval Zanella2012-11-05
| | | | | | | | | This patch expands the SEXTLOAD, ZEXTLOAD, and EXTLOAD operations for vector types when altivec is enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167386 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove alignments from folding tables for scalar FMA4 instructions.Craig Topper2012-11-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167366 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Set flag neverHasSideEffects flag on floating point conversionAkira Hatanaka2012-11-03
| | | | | | | | instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167348 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 CostModel: Add support for a some of the common arithmetic instructions ↵Nadav Rotem2012-11-03
| | | | | | for SSE4, AVX and AVX2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167347 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Set flag isAsCheapAsAMove flag on instruction LUi.Akira Hatanaka2012-11-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167345 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Stop reserving register AT and use register scavenger when a scratchAkira Hatanaka2012-11-03
| | | | | | | | register is needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167341 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Do not reserve all 64-bit registers, but only the ones which need to beAkira Hatanaka2012-11-02
| | | | | | | | | | reserved. Without this fix, RegScavenger::getRegsAvailable incorrectly returns an empty set of integer registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167335 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a stub for the x86 cost model impl. Implement a basic cost rule for ↵Nadav Rotem2012-11-02
| | | | | | inserting/extracting from XMM registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167333 91177308-0d34-0410-b5e6-96231b3b80d8
* Scalar Bitcasts and Truncs are usually freeNadav Rotem2012-11-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167323 91177308-0d34-0410-b5e6-96231b3b80d8
* Vext Lowering was missing opportunitiesQuentin Colombet2012-11-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167318 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Use register number instead of name to print register $AT.Akira Hatanaka2012-11-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167315 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Add function MipsFrameLowering::estimateStackSize.Akira Hatanaka2012-11-02
| | | | | | | | | This function estimates stack size and will be called before PrologEpilogInserter scans the callee-saved registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167313 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Add member field MipsFunctionInfo::IncomingArgSize which holds the sizeAkira Hatanaka2012-11-02
| | | | | | | | of the incoming argument area. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167312 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Delete MipsFunctionInfo::EmitNOAT. Unconditionally print directiveAkira Hatanaka2012-11-02
| | | | | | | | | "set .noat" so that the assembler doesn't issue warnings when register $AT is used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167310 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the relationship models infrastructure to add two relations - getPredOpcodePranav Bhandarkar2012-11-01
| | | | | | | | | | | and getPredNewOpcode. The first relates non predicated instructions with their predicated forms and the second relates predicated instructions with their predicate-new forms. Patch by Jyotsna Verma! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167243 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert the majority of the next patch in the address space series:Chandler Carruth2012-11-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r165941: Resubmit the changes to llvm core to update the functions to support different pointer sizes on a per address space basis. Despite this commit log, this change primarily changed stuff outside of VMCore, and those changes do not carry any tests for correctness (or even plausibility), and we have consistently found questionable or flat out incorrect cases in these changes. Most of them are probably correct, but we need to devise a system that makes it more clear when we have handled the address space concerns correctly, and ideally each pass that gets updated would receive an accompanying test case that exercises that pass specificaly w.r.t. alternate address spaces. However, from this commit, I have retained the new C API entry points. Those were an orthogonal change that probably should have been split apart, but they seem entirely good. In several places the changes were very obvious cleanups with no actual multiple address space code added; these I have not reverted when I spotted them. In a few other places there were merge conflicts due to a cleaner solution being implemented later, often not using address spaces at all. In those cases, I've preserved the new code which isn't address space dependent. This is part of my ongoing effort to clean out the partial address space code which carries high risk and low test coverage, and not likely to be finished before the 3.2 release looms closer. Duncan and I would both like to see the above issues addressed before we return to these changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167222 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert the series of commits starting with r166578 which introduced theChandler Carruth2012-11-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | getIntPtrType support for multiple address spaces via a pointer type, and also introduced a crasher bug in the constant folder reported in PR14233. These commits also contained several problems that should really be addressed before they are re-committed. I have avoided reverting various cleanups to the DataLayout APIs that are reasonable to have moving forward in order to reduce the amount of churn, and minimize the number of commits that were reverted. I've also manually updated merge conflicts and manually arranged for the getIntPtrType function to stay in DataLayout and to be defined in a plausible way after this revert. Thanks to Duncan for working through this exact strategy with me, and Nick Lewycky for tracking down the really annoying crasher this triggered. (Test case to follow in its own commit.) After discussing with Duncan extensively, and based on a note from Micah, I'm going to continue to back out some more of the more problematic patches in this series in order to ensure we go into the LLVM 3.2 branch with a reasonable story here. I'll send a note to llvmdev explaining what's going on and why. Summary of reverted revisions: r166634: Fix a compiler warning with an unused variable. r166607: Add some cleanup to the DataLayout changes requested by Chandler. r166596: Revert "Back out r166591, not sure why this made it through since I cancelled the command. Bleh, sorry about this! r166591: Delete a directory that wasn't supposed to be checked in yet. r166578: Add in support for getIntPtrType to get the pointer type based on the address space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167221 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup another place redundant SP maintainedMichael Liao2012-11-01
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167209 91177308-0d34-0410-b5e6-96231b3b80d8
* (For X86) Enhancement to add-carray/sub-borrow (adc/sbb) optimization.Shuxin Yang2012-10-31
| | | | | | | | | | | | | The adc/sbb optimization is to able to convert following expression into a single adc/sbb instruction: (ult) ... = x + 1 // where the ult is unsigned-less-than comparison (ult) ... = x - 1 This change is to flip the "x >u y" (i.e. ugt comparison) in order to expose the adc/sbb opportunity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167180 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in the cost calculation of vector casts. Detect situations where ↵Nadav Rotem2012-10-31
| | | | | | bitcasts cost zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167170 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Set isAsCheapAsAMove flag on ADDiu and DADDiu, which enablesAkira Hatanaka2012-10-31
| | | | | | | | re-materialization of immediate loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167153 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement ADJCALLSTACKUP and ADJCALLSTACKDOWNReed Kotler2012-10-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167107 91177308-0d34-0410-b5e6-96231b3b80d8
* Add scalar forms of FMA4 VFNMSUB/VFNMADD to folding tables. Patch from ↵Craig Topper2012-10-31
| | | | | | Cameron McInally. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167106 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up redundant SP register maintained in X86 TLIMichael Liao2012-10-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167104 91177308-0d34-0410-b5e6-96231b3b80d8
* This patch addresses an ABI compatibility issue with empty aggregateBill Schmidt2012-10-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | parameters. Examples of these are: struct { } a; union { } b[256]; int a[0]; An empty aggregate has an address, although dereferencing that address is pointless. When passed as a parameter, an empty aggregate does not consume a protocol register, nor does it consume a doubleword in the parameter save area. Passing an empty aggregate by reference passes an address just as for any other aggregate. Returning an empty aggregate uses GPR3 as a hidden address of the return value location, just as for any other aggregate. The patch modifies PPCTargetLowering::LowerFormalArguments_64SVR4 and PPCTargetLowering::LowerCall_64SVR4 to properly skip empty aggregate parameters passed by value. The handling of return values and by-reference parameters was already correct. Built on powerpc64-unknown-linux-gnu and tested with no new regressions. A test case is included to test proper handling of empty aggregate parameters on both sides of the function call protocol. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167090 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 SSE: update rsqrtss and rcpss to use two source operands andManman Ren2012-10-30
| | | | | | | | | | | | | the first source operand is tied to the destination operand. This is to accurately model the corresponding instructions where the upper bits are unmodified. rdar://12558838 PR14221 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167064 91177308-0d34-0410-b5e6-96231b3b80d8
* X86 MMX: optimize transfer from mmx to i32Manman Ren2012-10-30
| | | | | | | | | | We used to generate a store (movq) + a load. Now we use movd. rdar://9946746 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167056 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] Allow tail-call optimization for vararg functions and functions whichAkira Hatanaka2012-10-30
| | | | | | | | use the caller's stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167048 91177308-0d34-0410-b5e6-96231b3b80d8
* Add code for saving formal argument information to MipsFunctionInfo. ThisAkira Hatanaka2012-10-30
| | | | | | | | | information will be used by IsEligibleForTailCallOptimization to determine whether a call can be tail-call optimized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167043 91177308-0d34-0410-b5e6-96231b3b80d8
* Add definition of function MipsTargetLowering::passArgOnStack which emits nodesAkira Hatanaka2012-10-30
| | | | | | | | for passing a function call argument on a stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167041 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not do tail-call optimization if target is mips16.Akira Hatanaka2012-10-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167039 91177308-0d34-0410-b5e6-96231b3b80d8
* PowerPC: Expand FSRQT for vector typesAdhemerval Zanella2012-10-30
| | | | | | | | | This patch expands FSQRT for floating point vector types when altivec is used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167034 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable ELF machine type to be specified explicitly in X86 backendMichael Liao2012-10-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167027 91177308-0d34-0410-b5e6-96231b3b80d8
* Change ForceSizeOpt attribute into MinSize attributeQuentin Colombet2012-10-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167020 91177308-0d34-0410-b5e6-96231b3b80d8
* PowerPC: More support for Altivec compare operationsAdhemerval Zanella2012-10-30
| | | | | | | | | | This patch adds more support for vector type comparisons using altivec. It adds correct support for v16i8, v8i16, v4i32, and v4f32 vector types for comparison operators ==, !=, >, >=, <, and <=. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167015 91177308-0d34-0410-b5e6-96231b3b80d8
* Use TargetTransformInfo to control switch-to-lookup table transformationHans Wennborg2012-10-30
| | | | | | | | | | | | | | When the switch-to-lookup tables transform landed in SimplifyCFG, it was pointed out that this could be inappropriate for some targets. Since there was no way at the time for the pass to know anything about the target, an awkward reverse-transform was added in CodeGenPrepare that turned lookup tables back into switches for some targets. This patch uses the new TargetTransformInfo to determine if a switch should be transformed, and removes CodeGenPrepare::ConvertLoadToSwitch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167011 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an invalid assert in TargetTransformImplHal Finkel2012-10-30
| | | | | | | getCastInstrCost had an assert prohibiting scalar to vector casts. Such casts, however, are allowed. This should make the vectorizer buildbot happier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166998 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: Better disassembly for pc-relative LDR.Jim Grosbach2012-10-30
| | | | | | | | | When the operand is a plain immediate rather than a label, print it as [pc, #imm] like we do for the Thumb2 wide encoding variant. rdar://12154503 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166991 91177308-0d34-0410-b5e6-96231b3b80d8
* Change mips16 delay slot jumps to non delay slot forms by default.Reed Kotler2012-10-30
| | | | | | | | | | We will make them delay slot forms if there is something that can be placed in the delay slot during a separate pass. Mips16 extended instructions cannot be placed in delay slots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166990 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-commit r166971. I reverted it to quickly, when buildbots didn't have a chanceJakub Staszak2012-10-30
| | | | | | | to test it with chapni's fix (-mattr=+avx). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166985 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix ARM's b.w instruction for thumb 2 and the encoding T4. The branch targetKevin Enderby2012-10-29
| | | | | | | | is 24 bits not 20 and the decoding needed to correctly handle converting the J1 and J2 bits to their I1 and I2 values to reconstruct the displacement. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166982 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r166971. It causes buildbot failure. To be investigated.Jakub Staszak2012-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166979 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused variable.Jakub Staszak2012-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166973 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify code. No functionality change.Jakub Staszak2012-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166972 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow to fold vector load if there is more than one bitcast, so in the case:Jakub Staszak2012-10-29
| | | | | | | | | | | | | | | | | | | | %0 = load <8 x i16>* %dest %1 = shufflevector <8 x i16> %0, <8 x i16> %in, <8 x i32> < i32 0, i32 1, i32 2, i32 3, i32 13, i32 undef, i32 14, i32 14> store <8 x i16> %1, <8 x i16>* %dest We get: vmovlpd (%eax), %xmm0, %xmm0 instead of: vmovaps (%eax), %xmm1 vmovsd %xmm1, %xmm0, %xmm0 No extra test-case is added. I just fixed the existing one (also it uses FileCheck now). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166971 91177308-0d34-0410-b5e6-96231b3b80d8
* This patch solves a problem with passing varargs parameters under the PPC64Bill Schmidt2012-10-29
| | | | | | | | | | | | | | | | | | | ELF ABI. A varargs parameter consisting of a single-precision floating-point value, or of a single-element aggregate containing a single-precision floating-point value, must be passed in the low-order (rightmost) four bytes of the doubleword stack slot reserved for that parameter. If there are GPR protocol registers remaining, the parameter must also be mirrored in the low-order four bytes of the reserved GPR. Prior to this patch, such parameters were being passed in the high-order four bytes of the stack slot and the mirrored GPR. The patch adds a new test case to verify the correct code generation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166968 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement patterns for extloadi8 and extloadi16Reed Kotler2012-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166960 91177308-0d34-0410-b5e6-96231b3b80d8
* [ms-inline asm] Add support for the [] operator. Essentially, [expr1][expr2] isChad Rosier2012-10-29
| | | | | | | equivalent to [expr1 + expr2]. See test cases for more examples. rdar://12470392 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166949 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR14204Michael Liao2012-10-29
| | | | | | | | - Add missing pattern on X86ISD::VZEXT from VR256 to VR256 when AVX2 is enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166947 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typoJoerg Sonnenberger2012-10-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166945 91177308-0d34-0410-b5e6-96231b3b80d8
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