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2013-01-11PPC: Implement efficient lowering of sign_extend_inreg.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172269 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11Update patch for the pad short functions pass for Intel Atom (only).Preston Gurd
Adds a check for -Oz, changes the code to not re-visit BBs, and skips over DBG_VALUE instrs. Patch by Andy Zhang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172258 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11ARM Cost Model: Modify the target independent cost model to askNadav Rotem
the target if it supports the different CAST types. We didn't do this on X86 because of the different register sizes and types, but on ARM this makes sense. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172245 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11For inline asm:Eric Christopher
- recognize string "{memory}" in the MI generation - mark as mayload/maystore when there's a memory clobber constraint. PR14859. Patch by Krzysztof Parzyszek git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172228 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11Simplify writing floating types to assembly.Tim Northover
This removes previous special cases for each floating-point type in favour of a shared codepath. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172189 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11ARM Cost Model: We need to detect the max bitwidth of types in the loop in ↵Nadav Rotem
order to select the max vectorization factor. We don't have a detailed analysis on which values are vectorized and which stay scalars in the vectorized loop so we use another method. We look at reduction variables, loads and stores, which are the only ways to get information in and out of loop iterations. If the data types are extended and truncated then the cost model will catch the cost of the vector zext/sext/trunc operations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172178 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11Converted test dont-tce-tail-marked-call.ll to use FileCheck.Michael Gottesman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172172 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11This commit is a 4x squash commit consisting of 4x functions converted to ↵Michael Gottesman
use FileCheck instead of grep. Messages: Converted test case trivial_codegen_tailcall.ll to use FileCheck. Converted test return_constant.ll to use FileCheck instead of grep. Converted test reorder_load.ll to use FileCheck instead of grep. Converted test intervening-inst.ll to use FileCheck instead of grep. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172171 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10PR14904: Segmentation fault running pass 'Recognize loop idioms'Shuxin Yang
The root cause is mistakenly taking for granted that "dyn_cast<Instruction>(a-Value)" return a non-NULL instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172145 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10CastInst::castIsValid should return true if the dest type is the same asEvan Cheng
Value's current type. The casting is trivial even for aggregate type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172143 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10llvm/test/CodeGen/X86/ms-inline-asm.ll: Fixup; Globals doesn't have leading ↵NAKAMURA Takumi
underscore in symbol on linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172139 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10[llvm-objdump] Emit addresses with the correct number of leading 0's.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172130 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10[msan] Change va_start/va_copy shadow memset alignment to 8.Peter Collingbourne
This fixes va_start/va_copy of a va_list field which happens to not be laid out at a 16-byte boundary. Differential Revision: http://llvm-reviews.chandlerc.com/D276 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172128 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10PR14896: Handle memcpy from constant string where the memcpy size is larger ↵Evan Cheng
than the string size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172124 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10[ms-inline asm] Add support for calling functions from inline assembly.Chad Rosier
Part of rdar://12991541 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172121 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10Teach InstCombine to hoist FABS and FNEG through FPTRUNC instructions. The ↵Owen Anderson
application of these operations commutes with the truncation, so we should prefer to do them in the smallest size we can, to save register space, use smaller constant pool entries, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172117 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10LoopVectorizer: Fix a bug in the vectorization of BinaryOperators. The ↵Nadav Rotem
BinaryOperator can be folded to an Undef, and we don't want to set NSW flags to undef vals. PR14878 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172079 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10Fix a copy/paste error in the IR Linker, casting an ArrayType instead of a ↵Joey Gouly
VectorType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172054 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10Fix TryToShrinkGlobalToBoolean in GlobalOpt, so that it does not discard ↵Joey Gouly
address spaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172051 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10Stack Alignment: throw error if we can't satisfy the minimal alignmentManman Ren
requirement when creating stack objects in MachineFrameInfo. Add CreateStackObjectWithMinAlign to throw error when the minimal alignment can't be achieved and to clamp the alignment when the preferred alignment can't be achieved. Same is true for CreateVariableSizedObject. Will not emit error in CreateSpillStackObject or CreateStackObject. As long as callers of CreateStackObject do not assume the object will be aligned at the requested alignment, we should not have miscompile since later optimizations which look at the object's alignment will have the correct information. rdar://12713765 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172027 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09ARM Cost model: Use the size of vector registers and widest vectorizable ↵Nadav Rotem
instruction to determine the max vectorization factor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172010 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Fix a DAG combine bug visitBRCOND() is transforming br(xor(x, y)) to br(x != y).Evan Cheng
It cahced XOR's operands before calling visitXOR() but failed to update the operands when visitXOR changed the XOR node. rdar://12968664 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171999 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09LICM: Hoist insertvalue/extractvalue out of loops.Benjamin Kramer
Fixes PR14854. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171984 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09PowerPC: EH adjustmentsAdhemerval Zanella
This patch adjust the r171506 to make all DWARF enconding pc-relative for PPC64. It also adds the R_PPC64_REL32 relocation handling in MCJIT (since the eh_frame will not generate PIC-relative relocation) and also adds the emission of stubs created by the TTypeEncoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171979 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09add -march to the testNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171956 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Efficient lowering of vector sdiv when the divisor is a splatted power of ↵Nadav Rotem
two constant. PR 14848. The lowered sequence is based on the existing sequence the target-independent DAG Combiner creates for the scalar case. Patch by Zvi Rackover. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171953 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09MIsched: add an ILP window property to machine model.Andrew Trick
This was an experimental option, but needs to be defined per-target. e.g. PPC A2 needs to aggressively hide latency. I converted some in-order scheduling tests to A2. Hal is working on more test cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171946 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09ARM Cost Model: Add a basic vectorization unrolling test.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171931 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Remove the -licm pass from the loop vectorizer test because the loop ↵Nadav Rotem
vectorizer does it now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171930 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Cost Model: Move the 'max unroll factor' variable to the TTI and add initial ↵Nadav Rotem
Cost Model support on ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171928 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Consider expression "0.0 - X" as the negation of X ifShuxin Yang
- this expression is explicitly marked no-signed-zero, or - no-signed-zero of this expression can be derived from some context. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171922 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Specify complete triple for fp128 tests.Tim Northover
This avoids FileCheck failing over different comment characters in assembly (notably powerpc64 on Linux vs Darwin) and should fix David's build-bot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171886 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08This patch produces the correct addend value forJack Carter
an R_MIPS_GPREL16 relocation. Contributer: Jack Carter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171882 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08This patch produces the correct pointer size Jack Carter
value in the 64 bit .eh_frame section. It doesn't however allow exception handling to work yet since it depends on the correct relocation model being set in the ELF header flags. Contributer: Jack Carter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171881 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Pad Short Functions for Intel AtomPreston Gurd
The current Intel Atom microarchitecture has a feature whereby when a function returns early then it is slightly faster to execute a sequence of NOP instructions to wait until the return address is ready, as opposed to simply stalling on the ret instruction until the return address is ready. When compiling for X86 Atom only, this patch will run a pass, called "X86PadShortFunction" which will add NOP instructions where less than four cycles elapse between function entry and return. It includes tests. This patch has been updated to address Nadav's review comments - Optimize only at >= O1 and don't do optimization if -Os is set - Stores MachineBasicBlock* instead of BBNum - Uses DenseMap instead of std::map - Fixes placement of braces Patch by Andy Zhang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171879 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Allow the asm printer to print fp128 values properly.Tim Northover
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171866 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Make sure we don't emit instructions before a landingpad instruction.Bill Wendling
PR14782 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171846 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Add the C testcase to this file.Eric Christopher
Suggested by Dave Blaikie. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171839 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Remove the llvm-local DW_TAG_vector_type tag and add a test toEric Christopher
make sure that vector types do work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171833 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Mark artificial types as such in the annotated debug output.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171826 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07LoopVectorizer: Add support for floating point reductionsNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171812 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Add some additional tests for the .bundle_lock align_to_end feature that didn'tEli Bendersky
make into the last commit. Also, update the test-generation script to generate an exhaustive test for align_to_end as well, and include the generated test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171811 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07LoopVectorizer: When we vectorizer and widen loops we process many elements ↵Nadav Rotem
at once. This is a good thing, except for small loops. On small loops post-loop that handles scalars (and runs slower) can take more time to execute than the rest of the loop. This patch disables widening of loops with a small static trip count. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171798 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Add the align_to_end option to .bundle_lock in the MC implementation of alignedEli Bendersky
bundling. The document describing this feature and the implementation has also been updated: https://sites.google.com/a/chromium.org/dev/nativeclient/pnacl/aligned-bundling-support-in-llvm git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171797 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07This change is to implement following rules:Shuxin Yang
o. X/C1 * C2 => X * (C2/C1) (if C2/C1 is neither special FP nor denormal) o. X/C1 * C2 -> X/(C1/C2) (if C2/C1 is either specical FP or denormal, but C1/C2 is a normal Fp) Let MDC denote multiplication or dividion with one & only one operand being a constant o. (MDC ± C1) * C2 => (MDC * C2) ± (C1 * C2) (so long as the constant-folding doesn't yield any denormal or special value) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171793 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Add support for separating strings for the split debug info DWARF5Eric Christopher
proposal. This leaves the strings in the skeleton die as strp, but in all dwo files they're accessed now via DW_FORM_GNU_str_index. Add support for dumping these sections and modify the fission-cu.ll testcase to have the correct strings and form. Fix a small bug in the fixed form sizes routine that involved out of array accesses for the table and add a FIXME in the extractFast routine to fix this up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171779 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07This patch addresses bug 14678 by fixing two problems in medium code modelBill Schmidt
code generation. Variables addressed through a GlobalAlias were not being handled, and variables with available_externally linkage were treated incorrectly. The patch contains two new tests to verify the correct code generation for these cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171778 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07When code size is the priority (Oz, MinSize attribute), help llvmQuentin Colombet
turning a code like this: if (foo) free(foo) into that: free(foo) Move a call to free from basic block FB into FB's predecessor, P, when the path from P to FB is taken only if the argument of free is not equal to NULL. Some restrictions apply on P and FB to be sure that this code motion is profitable. Namely: 1. FB must have only one predecessor P. 2. FB must contain only the call to free plus an unconditional branch to S. 3. P's successors are FB and S. Because of 1., we will not increase the code size when moving the call to free from FB to P. Because of 2., FB will be empty after the move. Because of 2. and 3., P's branch instruction becomes useless, so as FB (simplifycfg will do the job). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171762 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Make test/DebugInfo/member-pointers.ll portable by removing the TargetDataDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171759 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Switch the SCEV expander and LoopStrengthReduce to useChandler Carruth
TargetTransformInfo rather than TargetLowering, removing one of the primary instances of the layering violation of Transforms depending directly on Target. This is a really big deal because LSR used to be a "special" pass that could only be tested fully using llc and by looking at the full output of it. It also couldn't run with any other loop passes because it had to be created by the backend. No longer is this true. LSR is now just a normal pass and we should probably lift the creation of LSR out of lib/CodeGen/Passes.cpp and into the PassManagerBuilder. =] I've not done this, or updated all of the tests to use opt and a triple, because I suspect someone more familiar with LSR would do a better job. This change should be essentially without functional impact for normal compilations, and only change behvaior of targetless compilations. The conversion required changing all of the LSR code to refer to the TTI interfaces, which fortunately are very similar to TargetLowering's interfaces. However, it also allowed us to *always* expect to have some implementation around. I've pushed that simplification through the pass, and leveraged it to simplify code somewhat. It required some test updates for one of two things: either we used to skip some checks altogether but now we get the default "no" answer for them, or we used to have no information about the target and now we do have some. I've also started the process of removing AddrMode, as the TTI interface doesn't use it any longer. In some cases this simplifies code, and in others it adds some complexity, but I think it's not a bad tradeoff even there. Subsequent patches will try to clean this up even further and use other (more appropriate) abstractions. Yet again, almost all of the formatting changes brought to you by clang-format. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171735 91177308-0d34-0410-b5e6-96231b3b80d8
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