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* Simplify demanded bits of select sources where the condition is a constant ↵Pete Cooper2012-07-262-0/+34
| | | | | | vector git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160835 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the X86 sub_ss and sub_sd sub-register indexes completely.Jakob Stoklund Olesen2012-07-261-6/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160833 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the last mentions of sub_ss and sub_sd from patterns.Jakob Stoklund Olesen2012-07-261-4/+4
| | | | | | I'll remove these two sub-register indexes shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160831 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate sub_ss, sub_sd from broadcast patterns.Jakob Stoklund Olesen2012-07-261-42/+16
| | | | | | | | The (COPY_TO_REGCLASS GR32:$src, VR128) pattern looks odd, but copyPhysReg does the right thing with it. (The old pattern would eventually produce the same cross-class copy). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160830 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach SimplifyDemandedBits how to look through fpext and fptrunc to simplify ↵Pete Cooper2012-07-261-0/+6
| | | | | | their operand git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160823 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate more sub_ss / sub_sd patterns.Jakob Stoklund Olesen2012-07-261-32/+24
| | | | | | | This gets rid of some more INSERT_SUBREG - IMPLICIT_DEF patterns, simplifying the emitted code a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160820 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate some SUBREG_TO_REG patterns with sub_ss and sub_sd.Jakob Stoklund Olesen2012-07-261-12/+10
| | | | | | | | | The SUBREG_TO_REG instruction has magic semantics asserting that the source value was defined by an instruction that cleared the high half of the register. Those semantics are never actually exploited for xmm registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160818 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate a batch of uses of sub_ss and sub_sd in the X86 target.Jakob Stoklund Olesen2012-07-261-82/+66
| | | | | | | | | | | | | | These idempotent sub-register indices don't do anything --- They simply map XMM registers to themselves. They no longer affect register classes either since the SubRegClasses field has been removed from Target.td. This patch replaces XMM->XMM EXTRACT_SUBREG and INSERT_SUBREG patterns with COPY_TO_REGCLASS patterns which simply become COPY instructions. The number of IMPLICIT_DEF instructions before register allocation is reduced, and that is the cause of the test case changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160816 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for v16i32/v16i64 into the code generator. This is required for ↵Micah Villmow2012-07-261-0/+8
| | | | | | backends that use i32/i64 vectors for the getSetCCResultType function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160814 91177308-0d34-0410-b5e6-96231b3b80d8
* Make comments in Debug.cpp and Debug.h consistent. Rename SetCurrentDebugType;Chad Rosier2012-07-261-5/+5
| | | | | | | Function names should be camel case, and start with a lower case letter. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160813 91177308-0d34-0410-b5e6-96231b3b80d8
* Use an otherwise unused variable.Jakob Stoklund Olesen2012-07-261-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160798 91177308-0d34-0410-b5e6-96231b3b80d8
* Start scaffolding for a MachineTraceMetrics analysis pass.Jakob Stoklund Olesen2012-07-264-1/+726
| | | | | | | | | | | | | | | | | | | | | | | | This is still a work in progress. Out-of-order CPUs usually execute instructions from multiple basic blocks simultaneously, so it is necessary to look at longer traces when estimating the performance effects of code transformations. The MachineTraceMetrics analysis will pick a typical trace through a given basic block and provide performance metrics for the trace. Metrics will include: - Instruction count through the trace. - Issue count per functional unit. - Critical path length, and per-instruction 'slack'. These metrics can be used to determine the performance limiting factor when executing the trace, and how it will be affected by a code transformation. Initially, this will be used by the early if-conversion pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160796 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a floor intrinsic.Dan Gohman2012-07-261-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160791 91177308-0d34-0410-b5e6-96231b3b80d8
* do null checks for a few more Emit*() functions.Nuno Lopes2012-07-261-17/+15
| | | | | | Thanks Eli for noticing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160787 91177308-0d34-0410-b5e6-96231b3b80d8
* Stop reassociate from looking through expressions of arbitrary complexity. ThisDuncan Sands2012-07-261-0/+2
| | | | | | | is a temporary measure until my fix for PR13021 is ready. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160778 91177308-0d34-0410-b5e6-96231b3b80d8
* Make l/q suffixes on AVX forms of scalar convert instructions consistent ↵Craig Topper2012-07-261-12/+15
| | | | | | with their non-AVX forms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160775 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix call setup for PIC.Akira Hatanaka2012-07-262-6/+40
| | | | | | | Patch by Reed Kotler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160774 91177308-0d34-0410-b5e6-96231b3b80d8
* It's not safe to blindly remove invoke instructions. This happens when weNick Lewycky2012-07-251-1/+2
| | | | | | | | encounter an invoke of an allocation function. This should fix the dragonegg bootstrap. Testcase to follow, later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160757 91177308-0d34-0410-b5e6-96231b3b80d8
* You cannot call removeModule on a JIT with no modules. Patch by VerenaChad Rosier2012-07-251-1/+1
| | | | | | Beckham <verena@codeplay.com>. Reviewed by Jim Grosbach. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160753 91177308-0d34-0410-b5e6-96231b3b80d8
* revert r160742: it's breaking CMake buildNuno Lopes2012-07-252-22/+8
| | | | | | | original commit msg: MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160751 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable rematerialization in TwoAddressInstructionPass.Manman Ren2012-07-251-78/+6
| | | | | | | | | | | | It is redundant; RegisterCoalescer will do the remat if it can't eliminate the copy. Collected instruction counts before and after this. A few extra instructions are generated due to spilling but it is normal to see these kinds of changes with almost any small codegen change, according to Jakob. This also fixed rdar://11830760 where xor is expected instead of movi0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160749 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't add null characters to the end of the APFloat string buffer.David Blaikie2012-07-251-10/+2
| | | | | | Report/patch inspiration by Olaf Krzikalla. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160744 91177308-0d34-0410-b5e6-96231b3b80d8
* MemoryBuiltins: add support to determine the size of strdup'ed non-constant ↵Nuno Lopes2012-07-252-8/+22
| | | | | | strings git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160742 91177308-0d34-0410-b5e6-96231b3b80d8
* add EmitStrNLen()Nuno Lopes2012-07-251-0/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160741 91177308-0d34-0410-b5e6-96231b3b80d8
* Preserve 2-addr constraints in ConnectedVNInfoEqClasses.Jakob Stoklund Olesen2012-07-251-7/+4
| | | | | | | | | | | | | | | | | | | | When a live range splits into multiple connected components, we would arbitrarily assign <undef> uses to component 0. This is wrong when the use is tied to a def that gets assigned to a different component: %vreg69<def> = ADD8ri %vreg68<undef>, 1 The use and def must get the same virtual register. Fix this by assigning <undef> uses to the same component as the value defined by the instruction, if any: %vreg69<def> = ADD8ri %vreg69<undef>, 1 This fixes PR13402. The PR has a test case which I am not including because it is unlikely to keep exposing this behavior in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160739 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM: Don't assume an SDNode is a constant.Jim Grosbach2012-07-251-0/+4
| | | | | | | | | Before accessing a node as a ConstandSDNode, make sure it actually is one. No testcase of non-trivial size. rdar://11948669 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160735 91177308-0d34-0410-b5e6-96231b3b80d8
* Verify two-address constraints more carefully.Jakob Stoklund Olesen2012-07-251-14/+7
| | | | | | Include <undef> operands and virtual registers after leaving SSA form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160734 91177308-0d34-0410-b5e6-96231b3b80d8
* make all Emit*() functions consult the TargetLibraryInfo information before ↵Nuno Lopes2012-07-255-64/+128
| | | | | | | | | creating a call to a library function. Update all clients to pass the TLI information around. Previous draft reviewed by Eli. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160733 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typos. Thanks to Matt Beaumont-Gay for noticing it.Rafael Espindola2012-07-251-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160731 91177308-0d34-0410-b5e6-96231b3b80d8
* When a return struct pointer is passed in registers, the called has nothingRafael Espindola2012-07-252-12/+31
| | | | | | to pop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160725 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor a long list of conditions into a predicate function. No functionalityRafael Espindola2012-07-251-6/+15
| | | | | | change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160724 91177308-0d34-0410-b5e6-96231b3b80d8
* When folding a load from a global constant, if the load started in the middleDuncan Sands2012-07-251-5/+8
| | | | | | | | | | | of an array element (rather than at the beginning of the element) and extended into the next element, then the load from the second element was being handled wrong due to incorrect updating of the notion of which byte to load next. This fixes PR13442. Thanks to Chris Smowton for reporting the problem, analyzing it and providing a fix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160711 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate the stack slot used to save the global base register.Akira Hatanaka2012-07-254-59/+15
| | | | | | | | | | The long branch pass (fixed in r160601) no longer uses the global base register to compute addresses of branch destinations, so it is not necessary to reserve a slot on the stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160703 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in the x86 disassembler's symbolic disassembly support for Jcc-JumpKevin Enderby2012-07-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | if Condition Is Met instuctions that was not correctly determining the target instruction. So for a jne rel32 instruction: % cat x.s .byte 0x0f, 0x85, 0x09, 0x00, 0x00, 0x00 % as x.s it was incorrectly deterining the target: % otool -q -tv a.out a.out: (__TEXT,__text) section 0000000000000000 jne 0xd and with the fix it gets this correct as: % otool -q -tv a.out a.out: (__TEXT,__text) section 0000000000000000 jne 0xf rdar://11505997 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160694 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't delete one more instruction than we're allowed to. This should fix theNick Lewycky2012-07-241-1/+3
| | | | | | | | Darwin bootstrap. Testcase exists but isn't fully reduced, I expect to commit the testcase this evening. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160693 91177308-0d34-0410-b5e6-96231b3b80d8
* add a few more functions to TargetLibraryInfo:Nuno Lopes2012-07-241-0/+7
| | | | | | fputc, memchr, memcmp, putchar, puts, strchr, strncmp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160690 91177308-0d34-0410-b5e6-96231b3b80d8
* ELF does not imply GNU/Linux. Do not assume GNU conventions just because weDavid Chisnall2012-07-241-1/+1
| | | | | | | | | | | are targeting an ELF platform. Only fold gs-relative (and fs-relative) loads if it is actually sensible to do so for the target platform. This fixes PR13438. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160687 91177308-0d34-0410-b5e6-96231b3b80d8
* TargetLibraryInfo: add strn?cat, strn?cpy, and strn?lenNuno Lopes2012-07-241-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160678 91177308-0d34-0410-b5e6-96231b3b80d8
* teach objectsize about strdup() and strndup()Nuno Lopes2012-07-241-3/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160676 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean whitespaces.Nadav Rotem2012-07-2422-498/+500
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160668 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach globalopt to not nuke all stores to globals. Keep them around of theyNick Lewycky2012-07-241-8/+177
| | | | | | | | | | might be deliberate "one time" leaks, so that leak checkers can find them. This is a reapply of r160602 with the fix that this time I'm committing the code I thought I was committing last time; the I->eraseFromParent() goes *after* the break out of the loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160664 91177308-0d34-0410-b5e6-96231b3b80d8
* Change llvm_unreachable in SplitVectorOperand to report_fatal_error. Keeps ↵Craig Topper2012-07-241-1/+3
| | | | | | release builds from crashing if code uses an intrinsic with an illegal type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160661 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix function MipsCodeEmitter::emitExternalSymbolAddress to pass testAkira Hatanaka2012-07-241-1/+1
| | | | | | | | | | ExecutionEngine/test-fp.ll. Patch by Petar Jovanovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160653 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic ability to setup call frame, and make procedure calls.Akira Hatanaka2012-07-238-44/+287
| | | | | | | | | | Hello world will compile and execute with this patch. Patch by Reed Kotler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160651 91177308-0d34-0410-b5e6-96231b3b80d8
* make ConstantRange::zeroExtend() optimalNuno Lopes2012-07-231-2/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160643 91177308-0d34-0410-b5e6-96231b3b80d8
* An objc_retain can serve as a may-use for a different pointer.Dan Gohman2012-07-231-1/+4
| | | | | | | rdar://11931823. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160637 91177308-0d34-0410-b5e6-96231b3b80d8
* Add comment for relocations MO_HIGHER and HIGHEST in MipsBaseInfo.h.Akira Hatanaka2012-07-231-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160636 91177308-0d34-0410-b5e6-96231b3b80d8
* Test revert of test changes.Micah Villmow2012-07-231-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160632 91177308-0d34-0410-b5e6-96231b3b80d8
* Test commit.Micah Villmow2012-07-231-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160631 91177308-0d34-0410-b5e6-96231b3b80d8
* Suppress a warning.Nadav Rotem2012-07-231-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160629 91177308-0d34-0410-b5e6-96231b3b80d8
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