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2013-05-06[SystemZ] Add CodeGen test casesUlrich Weigand
This adds all CodeGen tests for the SystemZ target. This version of the patch incorporates feedback from a review by Sean Silva. Thanks to all reviewers! Patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181204 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06[SystemZ] Add back endUlrich Weigand
This adds the actual lib/Target/SystemZ target files necessary to implement the SystemZ target. Note that at this point, the target cannot yet be built since the configure bits are missing. Those will be provided shortly by a follow-on patch. This version of the patch incorporates feedback from reviews by Chris Lattner and Anton Korobeynikov. Thanks to all reviewers! Patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181203 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06[SystemZ] Define DWARF encodingUlrich Weigand
This is another patch in preparation for adding the SystemZ target. It defines the appropriate values for DWARF encodings; the intent is to be compatible with what GCC currently does on the target. Patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181201 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Simplify JIT unit test #ifdefsUlrich Weigand
Several platforms need to disable all old-JIT unit tests, since they only support the new MCJIT. This currently done via #ifdef'ing out those tests in the ExecutionEngine/JIT/*.cpp files. As those #ifdef's have grown historically, we now have a number of repeated directives which -in total- cover nearly the whole file, but leave a couple of helper functions out. When building the tests with clang itself, those helper functions now cause spurious "unused function" warnings. To fix those warnings, and also to remove the duplicate #ifdef conditions and make it easier to disable the tests for a new target, this patch consolidates the #ifdefs into a single one per file, which covers all the tests including all helper routines. Tested on PowerPC and SystemZ. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181200 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Free the exception object. Should fix the vg bots.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181195 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06[PowerPC] Fix memory corruption in AsmParserUlrich Weigand
As pointed out by Evgeniy Stepanov, assigning a std::string temporary to a StringRef is not a good idea. Rework MatchRegisterName to avoid using the .lower routine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181192 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Fix formatting. Patch by o11c.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181189 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Fix slightly too aggressive conact_vector optimization.Michael Kuperstein
(Would sometimes optimize away conacts used to extend a vector with undef values) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181186 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Add a testcase that checks that we generate functions with frameBill Wendling
pointers or not depending upon the function attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181180 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06XFAIL for cygwin.Rafael Espindola
Looks like symbol resolution is not working on cygwin, the test fails because __gxx_personality_v0 is not found. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181179 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Update the comment to mention that we use TTI.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181178 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Revert r164763 because it introduces new shuffles.Nadav Rotem
Thanks Nick Lewycky for pointing this out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181177 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Fix unchecked uses of DominatorTree in MemoryDependenceAnalysis.Matt Arsenault
Use unknown results for places where it would be needed git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181176 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-06Fix const merging when an alias of a const is llvm.used.Rafael Espindola
We used to disable constant merging not only if a constant is llvm.used, but also if an alias of a constant is llvm.used. This change fixes that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181175 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05This should also fail on ARM.Rafael Espindola
We currently have no way to register new eh frames on ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181172 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Fix XFAIL line.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181171 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05XFAIL this on ppc64.Rafael Espindola
It looks like eh uses an unimplemented relocation on pp64 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181169 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Port ExceptionDemo to MCJIT.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181168 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Add EH support to the MCJIT.Rafael Espindola
This gets exception handling working on ELF and Macho (x86-64 at least). Other than the EH frame registration, this patch also implements support for GOT relocations which are used to locate the personality function on MachO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181167 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Test case for r181160 and r181161. rdar://13782395Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181162 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05ARM AnalyzeBranch should conservatively return true when it sees a predicatedEvan Cheng
indirect branch at the end of the BB. Otherwise if-converter, branch folding pass may incorrectly update its successor info if it consider BB as fallthrough to the next BB. rdar://13782395 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181161 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Teach if-converter to avoid removing BBs whose addresses are takne. ↵Evan Cheng
rdar://13782395 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181160 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05LoopVectorize: Print values instead of pointers in debug output.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181157 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[docs] Update Target Feature Matrix for the XCore backend.Richard Osborne
Disassembler support has recently been added. Fill in some other unknowns at the same time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181156 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Add LDAPB instructions.Richard Osborne
With the change the disassembler now supports the XCore ISA in its entirety. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181155 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Update LDAP to use pcrel_imm.Richard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181154 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Rename calltarget -> pcrel_imm.Richard Osborne
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181153 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Add BLRB instructions.Richard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181152 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05[XCore] Remove '-' from back branch asm syntax.Richard Osborne
Instead operands are treated as negative immediates where the sign bit is implicit in the instruction encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181151 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05InlineSpiller: Remove quadratic behavior.Benjamin Kramer
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181149 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05For ARM backend, fixed "byval" attribute support.Stepan Dyatkovskiy
Now even the small structures could be passed within byval (small enough to be stored in GPRs). In regression tests next function prototypes are checked: PR15293: %artz = type { i32 } define void @foo(%artz* byval %s) define void @foo2(%artz* byval %s, i32 %p, %artz* byval %s2) foo: "s" stored in R0 foo2: "s" stored in R0, "s2" stored in R2. Next AAPCS rules are checked: 5.5 Parameters Passing, C.4 and C.5, "ParamSize" is parameter size in 32bit words: -- NSAA != 0, NCRN < R4 and NCRN+ParamSize > R4. Parameter should be sent to the stack; NCRN := R4. -- NSAA != 0, and NCRN < R4, NCRN+ParamSize < R4. Parameter stored in GPRs; NCRN += ParamSize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181148 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Add missing PatternMatch.cpp to CMakeLists.txtArnold Schwaighofer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181147 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05PatternMatch: Fix documentation - 'function' not 'attribute'Arnold Schwaighofer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181146 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Remove a recently redundant transform from X86ISelLowering.David Majnemer
X86ISelLowering has support to treat: (icmp ne (and (xor %flags, -1), (shl 1, flag)), 0) as if it were actually: (icmp eq (and %flags, (shl 1, flag)), 0) However, r179386 has code at the InstCombine level to handle this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181145 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05LoopVectorize: Add support for floating point min/max reductionsArnold Schwaighofer
Add support for min/max reductions when "no-nans-float-math" is enabled. This allows us to assume we have ordered floating point math and treat ordered and unordered predicates equally. radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181144 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05PatternMatch: Matcher for (un)ordered floating point min/maxArnold Schwaighofer
Add support for matching 'ordered' and 'unordered' floating point min/max constructs. In LLVM we can express min/max functions as a combination of compare and select. We have support for matching such constructs for integers but not for floating point. In floating point math there is no total order because of the presence of 'NaN'. Therefore, we have to be careful to preserve the original fcmp semantics when interpreting floating point compare select combinations as a minimum or maximum function. The resulting 'ordered/unordered' floating point maximum function has to select the same value as the select/fcmp combination it is based on. ordered_max(x,y) = max(x,y) iff x and y are not NaN, y otherwise unordered_max(x,y) = max(x,y) iff x and y are not NaN, x otherwise ordered_min(x,y) = min(x,y) iff x and y are not NaN, y otherwise unordered_min(x,y) = min(x,y) iff x and y are not NaN, x otherwise This matches the behavior of the underlying select(fcmp(olt/ult/.., L, R), L, R) construct. Any code using this predicate has to preserve this semantics. A follow-up patch will use this to implement floating point min/max reductions in the vectorizer. radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181143 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05LoopVectorizer: Cleanup of miminimum/maximum pattern match codeArnold Schwaighofer
No need for setting the operands. The pointers are going to be bound by the matcher. radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181142 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05LoopVectorize: We don't need an identity element for min/max reductionsArnold Schwaighofer
We can just use the initial element that feeds the reduction. max(max(x, y), z) == max(max(x,y), max(x,z)) radar://13723044 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181141 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-05Add ArrayRef constructor from None, and do the cleanups that this ↵Dmitri Gribenko
constructor enables Patch by Robert Wilhelm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04whitespaceNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181137 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Fix an odd comment.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181136 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: enable MCJIT and tests now that everything passes.Tim Northover
This removes dire warnings about AArch64 being unsupported and enables the tests when appropriate on this platform. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181135 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: implement 64-bit absolute relocation in MCJITTim Northover
This is about the simplest relocation, but surprisingly rare in actual code. It occurs in (for example) the MCJIT test test-ptr-reloc.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181134 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: add stubs to support long function calls on MCJITTim Northover
As with global accesses, external functions could exist anywhere in memory. Therefore the stub must create a complete 64-bit address. This patch implements the fragment as (roughly): movz x16, #:abs_g3:somefunc movk x16, #:abs_g2_nc:somefunc movk x16, #:abs_g1_nc:somefunc movk x16, #:abs_g0_nc:somefunc br x16 In principle we could save 4 bytes by using a literal-load instead, but it is unclear that would be more efficient and can only be tested when real hardware is readily available. This allows (for example) the MCJIT test 2003-05-07-ArgumentTest to pass on AArch64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181133 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: implement relocations for global accessTim Northover
The large memory model (default and main viable for JIT) emits addresses in need of relocation as movz x0, #:abs_g3:somewhere movk x0, #:abs_g2_nc:somewhere movk x0, #:abs_g1_nc:somewhere movk x0, #:abs_g0_nc:somewhere To support this we must implement those four relocations in the dynamic loader. This allows (for example) the test-global.ll MCJIT test to pass on AArch64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181132 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: implement first relocation required for MCJITTim Northover
R_AARCH64_PCREL32 is present in even trivial .eh_frame sections and so is required to compile any function without the "nounwind" attribute. This change implements very basic infrastructure in the RuntimeDyldELF file and allows (for example) the test-shift.ll MCJIT test to pass on AArch64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181131 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Build system changes to enable MCJIT on AArch64Tim Northover
These changes just allow AArch64 to take part in the MCJIT world when built correctly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181130 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04AArch64: use __clear_cache under GCCish environmentsTim Northover
AArch64 is going to need some kind of cache-invalidation in order to successfully JIT since it has a weak memory-model. This is provided by a __clear_cache builtin in libgcc, which acts very much like the 32-bit ARM equivalent (on platforms where it exists). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181129 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Fix buildbot failure on 64 bit linux due to std::max() having differentRichard Osborne
operand types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181128 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[XCore] Remove unused operand type.Richard Osborne
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181127 91177308-0d34-0410-b5e6-96231b3b80d8
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