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2010-04-16Adding support for dag combiner to promote operations for profit. This ↵Evan Cheng
requires target specific queries. For example, x86 should promote i16 to i32 when it does not impact load folding. x86 support is off by default. It can be enabled with -promote-16bit. Work in progress. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101448 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Use getAL() rather than a major constant.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101446 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16back out r101423 and r101397, they break llvm-gcc self-host on darwin10Gabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101434 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Fixed a bug in ARM disassembly where LDRSBT should have am3offset operand, notJohnny Chen
am2offset. Modified the instruction table entry and added a new test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101415 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Use default lowering of DYNAMIC_STACKALLOC. As far as I can tell, ARM isle ↵Evan Cheng
is doing the right thing and codegen looks correct for both Thumb and Thumb2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15reapply r101364, which has been backed out in r101368Gabor Greif
with a fix rotate CallInst operands, i.e. move callee to the back of the operand array the motivation for this patch are laid out in my mail to llvm-commits: more efficient access to operands and callee, faster callgraph-construction, smaller compiler binary git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101397 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15ARM SelectDYN_ALLOC should emit a copy from SP rather than referencing SP ↵Evan Cheng
directly. In cases where there are two dyn_alloc in the same BB it would have caused the old SP value to be reused and badness ensues. rdar://7493908 llvm is generating poor code for dynamic alloca, I'll fix that later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101383 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15DEBUG() print out "Unknown format" msg.Johnny Chen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101382 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15ReuseFrameIndexVals is used in multiple files, so it can't be static.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15EnablePPC64RS and EnablePPC32RS are used in multiple files, so theyDan Gohman
can't be static. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Fix a bunch of namespace polution.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15back out r101364, as it trips the linux nightlybot on some clang C++ testsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101368 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15rotate CallInst operands, i.e. move callee to the backGabor Greif
of the operand array the motivation for this patch are laid out in my mail to llvm-commits: more efficient access to operands and callee, faster callgraph-construction, smaller compiler binary git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101364 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Implement rdar://7860110 (also in target/readme.txt) narrowingChris Lattner
a load/or/and/store sequence into a narrower store when it is safe. Daniel tells me that clang will start producing this sort of thing with bitfields, and this does trigger a few dozen times on 176.gcc produced by llvm-gcc even now. This compiles code like CodeGen/X86/2009-05-28-DAGCombineCrash.ll into: movl %eax, 36(%rdi) instead of: movl $4294967295, %eax ## imm = 0xFFFFFFFF andq 32(%rdi), %rax shlq $32, %rcx addq %rax, %rcx movq %rcx, 32(%rdi) and each of the testcases into a single store. Each of them used to compile into craziness like this: _test4: movl $65535, %eax ## imm = 0xFFFF andl (%rdi), %eax shll $16, %esi addl %eax, %esi movl %esi, (%rdi) ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101343 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Add more const qualifiers for LLVM IR pointers in CodeGen.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101342 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Fix build.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101335 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Add const qualifiers to CodeGen's use of LLVM IR constructs.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Allow lowering for palignr instructions for mmx sized vectors. AddEric Christopher
patterns to handle the lowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101331 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Wrap the error msgs in DEBUG() macro so that they won't appear in NDEBUG build.Johnny Chen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101329 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Fixed another assert exposed by fuzzing. Now, the DisassembleVFPLdStMulFrm()Johnny Chen
function checks whether we have a valid submode for VLDM/VSTM (must be either "ia" or "db") before calling ARM_AM::getAM5Opc(AMSubMode, unsigned char). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101306 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Add -arm-long-calls option to force calls to be indirect. This makes theJim Grosbach
kernel linker happier when dealing with kexts. Radar 7805069 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101303 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14For t2BFI disassembly, apply the same error checking as in r101205.Johnny Chen
Change the error msg to read "Encoding error: msb < lsb". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Fixed another assert exposed by fuzzing. The utility function getRegisterEnum()Johnny Chen
was asserting because the (RegClass, RegNum) combination doesn't make sense from an encoding point of view. Since getRegisterEnum() is used all over the place, to change the code to check for encoding error after each call would not only bloat the code, but also make it less readable. An Err flag is added to the ARMBasicMCBuilder where a client can set a non-zero value to indicate some kind of error condition while building up the MCInst. ARMBasicMCBuilder::BuildIt() checks this flag and returns false if a non-zero value is detected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101290 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Don't custom lower bit converts to ARM VMOVDRRD or VMOVDRR when the operandBob Wilson
does not have a legal type. The legalizer does not know how to handle those nodes. Radar 7854640. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101282 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Delete unneeeded arguments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101276 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Factor out EH landing pad code into a separate function, and constifyDan Gohman
a bunch of stuff to support it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101273 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Fixed another assert exposed by fuzzing. Now, when an encoding error occursJohnny Chen
involing getBFCInvMask() where lsb <= msb does not hold true, the disassembler just returns false, instead of assert, to indicate disassembly error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14Fixed an assert() exposed by fuzzing. Now, instead of assert when an invalidJohnny Chen
instruction encoding is encountered, we just return a NULL ARMBasicMCBuilder instance and the client just returns false to indicate disassembly error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101201 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Unbreak CMake build by improving the EnhancedDisassembly makefile aDouglas Gregor
bit (we're not trying to build a shared library yet) and generating the X86GenEDInfo.inc and ARMGenEDInfo.inc files as necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101188 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Handle a v2f64 formal parameter that is split between registers and memoryBob Wilson
such that the entire second half is in memory. Radar 7855014. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101181 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Fixed a nasty layering violation in the edis sourceSean Callanan
code. It used to #include the enhanced disassembly information for the targets it supported straight out of lib/Target/{X86,ARM,...} but now it uses a new interface provided by MCDisassembler, and (so far) implemented by X86 and ARM. Also removed hacky #define-controlled initialization of targets in edis. If clients only want edis to initialize a limited set of targets, they can set --enable-targets on the configure command line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101179 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Changed getSOImmValRotate()'s hunt retry logic to ignore the low order 6 bits,Johnny Chen
instead of 7, because we are only looking for even rotate amount. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101172 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Re-apply 101075 and fix it properly. Just reuse the debug info of the branch ↵Evan Cheng
instruction being optimized. There is no need to --I which can deref off start of the BB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101162 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Temporarily revert r101075, it's causing invalid iterator assertionsEric Christopher
in a nightly tester. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101158 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Eliminate MachineBasicBlock::const_livein_iterator and makeDan Gohman
MachineBasicBlock::livein_iterator a const_iterator, because clients shouldn't ever be using the iterator interface to mutate the livein set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Use MachineBasicBlock::isLiveIn.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101144 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13Replace r101053 with a fix for getSOImmValRotate() so that it will correctlyBob Wilson
recognize all the valid rotated immediates. This fixes the disassembler issue and will also help codegen for some unusual constant values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101114 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13add llvm codegen support for -ffunction-sections and -fdata-sections,Chris Lattner
patch by Sylvere Teissier! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101106 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12Use .set expression for x86 pic jump table reference to reduce assembly ↵Evan Cheng
relocation. rdar://7738756 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101085 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12Micro-optimization:Bill Wendling
If we have this situation: jCC L1 jmp L2 L1: ... L2: ... We can get a small performance boost by emitting this instead: jnCC L2 L1: ... L2: ... This testcase shows an example of this: float func(float x, float y) { double product = (double)x * y; if (product == 0.0) return product; return product - 1.0; } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101075 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12Fixed a crasher in arm disassembler within ARMInstPrinter.cpp after callingJohnny Chen
ARM_AM::getSoImmVal(V) with a legitimate so_imm value: #245 rotate right by 2. Introduce ARM_AM::getSOImmValOneOrNoRotate(unsigned Arg) which is called from ARMInstPrinter.cpp's printSOImm() function, replacing ARM_AM::getSOImmVal(V). [12:44:43] johnny:/Volumes/data/llvm/git/trunk (local-trunk) $ gdb Debug/bin/llvm-mc GNU gdb 6.3.50-20050815 (Apple version gdb-1346) (Fri Sep 18 20:40:51 UTC 2009) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "x86_64-apple-darwin"...Reading symbols for shared libraries ... done (gdb) set args -triple=arm-apple-darwin9 -debug-only=arm-disassembler --disassemble (gdb) r Starting program: /Volumes/data/llvm/git/trunk/Debug/bin/llvm-mc -triple=arm-apple-darwin9 -debug-only=arm-disassembler --disassemble Reading symbols for shared libraries ++. done 0xf5 0x71 0xf0 0x53 Opcode=201 Name=MVNi Format=ARM_FORMAT_DPFRM(4) 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ------------------------------------------------------------------------------------------------- | 0: 1: 0: 1| 0: 0: 1: 1| 1: 1: 1: 1| 0: 0: 0: 0| 0: 1: 1: 1| 0: 0: 0: 1| 1: 1: 1: 1| 0: 1: 0: 1| ------------------------------------------------------------------------------------------------- mvnpls r7, Assertion failed: (V != -1 && "Not a valid so_imm value!"), function printSOImm, file ARMInstPrinter.cpp, line 229. Program received signal SIGABRT, Aborted. 0x00007fff88c65886 in __kill () (gdb) bt #0 0x00007fff88c65886 in __kill () #1 0x00007fff88d05eae in abort () #2 0x00007fff88cf2ef0 in __assert_rtn () #3 0x000000010020e422 in printSOImm (O=@0x1010bdf80, V=-1, VerboseAsm=false, MAI=0x1020106d0) at ARMInstPrinter.cpp:229 #4 0x000000010020e5fe in llvm::ARMInstPrinter::printSOImmOperand (this=0x1020107e0, MI=0x7fff5fbfee70, OpNum=1, O=@0x1010bdf80) at ARMInstPrinter.cpp:254 #5 0x00000001001ffbc0 in llvm::ARMInstPrinter::printInstruction (this=0x1020107e0, MI=0x7fff5fbfee70, O=@0x1010bdf80) at ARMGenAsmWriter.inc:3236 #6 0x000000010020c27c in llvm::ARMInstPrinter::printInst (this=0x1020107e0, MI=0x7fff5fbfee70, O=@0x1010bdf80) at ARMInstPrinter.cpp:182 #7 0x000000010003cbff in PrintInsts (DisAsm=@0x10200f4e0, Printer=@0x1020107e0, Bytes=@0x7fff5fbff060, SM=@0x7fff5fbff078) at Disassembler.cpp:65 #8 0x000000010003c8b4 in llvm::Disassembler::disassemble (T=@0x1010c13c0, Triple=@0x1010b6798, Buffer=@0x102010690) at Disassembler.cpp:153 #9 0x000000010004095c in DisassembleInput (ProgName=0x7fff5fbff3f0 "/Volumes/data/llvm/git/trunk/Debug/bin/llvm-mc") at llvm-mc.cpp:347 #10 0x000000010003eefb in main (argc=4, argv=0x7fff5fbff298) at llvm-mc.cpp:374 (gdb) q The program is running. Exit anyway? (y or n) y [13:36:26] johnny:/Volumes/data/llvm/git/trunk (local-trunk) $ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101053 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10Implement support for varargs functions without any fixedChris Lattner
parameters in the CBE by implicitly adding a fixed argument. This allows eliminating a work-around from DAE. Patch by Sylvere Teissier! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100944 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Provide versions of the ARM eh_sjlj_setjmp instructions for non-VFP subtargetsBob Wilson
such that the non-VFP versions have no implicit defs of VFP registers. If any callee-saved VFP registers are marked as having been defined, the prologue/epilogue code will try to save and restore them. Radar 7770432. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100892 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09"On SPU, variables in the .bss section that are allocated with the .lcomm ↵Chris Lattner
directive are not aligned on 16 byte boundaries. This causes misaligned loads, as the generated assembly assumes this "default" alignment. this patch disables .lcomm in favour of '.local .comm' Patch by Kalle Raisklia! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100875 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08delete a forwarding function.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100815 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08move elf section uniquing to MCContext. Along the wayChris Lattner
merge XCore's section into MCSectionELF git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100812 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08remove the TargetLoweringObjectFileMachO::getMachoSectionChris Lattner
api and update clients to use MCContext instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100808 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08use abstract interface in two more placesGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100762 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08fix compileGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100760 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08use abstract interfaceGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100758 91177308-0d34-0410-b5e6-96231b3b80d8
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