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2011-07-01Add support for the ARM 't' register constraint. And another testcaseEric Christopher
for the 'x' register constraint. Part of rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134220 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01Add support for the 'x' constraint.Eric Christopher
Part of rdar://9307836 and rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134215 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29In the ARM global merging pass, allow extraneous alignment specifiers. This passCameron Zwarich
already makes the assumption, which is correct on ARM, that a type's alignment is less than its alloc size. This improves codegen with Clang (which inserts a lot of extraneous alignment specifiers) and fixes <rdar://problem/9695089>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134106 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29Don't depend on the optimization reverted in r134067.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Allow lr in the register options here.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133935 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24The Neon VCVT (between floating-point and fixed-point, Advanced SIMD) Chad Rosier
instructions can be used to match combinations of multiply/divide and VCVT (between floating-point and integer, Advanced SIMD). Basically the VCVT immediate operand that specifies the number of fraction bits corresponds to a floating-point multiply or divide by the corresponding power of 2. For example, VCVT (floating-point to fixed-point, Advanced SIMD) can replace a combination of VMUL and VCVT (floating-point to integer) as follows: Example (assume d17 = <float 8.000000e+00, float 8.000000e+00>): vmul.f32 d16, d17, d16 vcvt.s32.f32 d16, d16 becomes: vcvt.s32.f32 d16, d16, #3 Similarly, VCVT (fixed-point to floating-point, Advanced SIMD) can replace a combinations of VCVT (integer to floating-point) and VDIV as follows: Example (assume d17 = <float 8.000000e+00, float 8.000000e+00>): vcvt.f32.s32 d16, d16 vdiv.f32 d16, d17, d16 becomes: vcvt.f32.s32 d16, d16, #3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133813 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Needs a triple.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133634 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Emit trailing padding on constant vectors when TargetData says that the vectorNick Lewycky
is larger than the sum of the elements (including per-element padding). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133631 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Test case for r133560.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133585 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Teach dag combine to match halfword byteswap patterns.Evan Cheng
1. (((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8) => (bswap x) >> 16 2. ((x&0xff)<<8)|((x&0xff00)>>8)|((x&0xff000000)>>8)|((x&0x00ff0000)<<8)) => (rotl (bswap x) 16) This allows us to eliminate most of the def : Pat patterns for ARM rev16 revsh instructions. It catches many more cases for ARM and x86. rdar://9609108 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133503 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-18rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which isChris Lattner
for pre-2.9 bitcode files. We keep x86 unaligned loads, movnt, crc32, and the target indep prefetch change. As usual, updating the testsuite is a PITA. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133337 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Add an alternative rev16 pattern. We should figure out a better way to ↵Evan Cheng
handle these complex rev patterns. rdar://9609108 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133289 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17make the asmparser reject function and type redefinitions. 'Merging' hasn't ↵Chris Lattner
been needed since llvm-gcc 3.4 days. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133248 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Remove support for using "foo" as symbols instead of %"foo". This is ancientChris Lattner
syntax and has been long obsolete. As usual, updating the tests is the nasty part of this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133242 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17manually upgrade a bunch of tests to modern syntax, and remove some thatChris Lattner
are either unreduced or only test old syntax. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133228 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-17Update an insertion point iterator after replacing a return instruction with aCameron Zwarich
tail call pseudoinstruction. This fixes <rdar://problem/9624333>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Force a triple here so this test doesn't fail on EABI hosts (like ↵Eli Friedman
clang-native-arm-cortex-a9). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133134 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Typos.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133128 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Revision r128665 added an optimization to make use of NEON multiplierChad Rosier
accumulator forwarding. Specifically (from SVN log entry): Distribute (A + B) * C to (A * C) + (B * C) to make use of NEON multiplier accumulator forwarding: vadd d3, d0, d1 vmul d3, d3, d2 => vmul d3, d0, d2 vmla d3, d1, d2 Make sure it catches cases where operand 1 is add/fadd/sub/fsub, which was intended in the original revision. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133127 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Testcase for previous commit.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133089 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Another revsh pattern. rdar://9609059Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133064 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15PerformBFICombine - (bfi A, (and B, Mask1), Mask2) -> (bfi A, B, Mask2) iffEvan Cheng
the bits being cleared by the AND are not demanded by the BFI. The previous BFI dag combine rule was actually incorrect (or used to be correct until BFI representation changed). rdar://9609030 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133034 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Add an optimization that looks for a specific pair-wise add pattern and ↵Tanya Lattner
generates a vpaddl instruction instead of scalarizing the add. Includes a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133027 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Since ARM's prefetch implementation predicted the presence of a instructionBruno Cardoso Lopes
cache prefetch and now that the info from "prefetch" to "ARMPreload" is present, only add a testcase for PLI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132978 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Add one more argument to the prefetch intrinsic to indicate whether it's a dataBruno Cardoso Lopes
or instruction cache access. Update the targets to match it and also teach autoupgrade. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132976 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Be less aggressive about hinting in RAFast.Jakob Stoklund Olesen
In particular, don't spill dirty registers only to satisfy a hint. It is not worth it. The attached test case provides an example where the fast allocator would spill a register when other registers are available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132900 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09A CCState was being created without setting whether it is in the Call or ↵Cameron Zwarich
Prologue state, causing an assertion failure downstream. This fixes <rdar://problem/9562908>. This really seems like it should always be set at CCState creation time, so mistakes like this can never happen. I'll take a look at doing that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-03Another possible bug. Stopgap until we can autogenerate tables andEric Christopher
constraint lengths. Part of rdar://9037836 and rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132598 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-03Fix an off by one error.Eric Christopher
Part of rdar://9037836 and rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132590 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-03Make the Uv constraint a memory operand. This doesn't solve theEric Christopher
addressing mode problem mentioned in r132559. Backend part of rdar://9037836 and part of rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132561 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-03Add ARM fast-isel support for materializing the address of a global in cases ↵Eli Friedman
where the global uses an indirect symbol. rdar://9431157 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132522 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02During post RA scheduling, do not try to chase reg defs. to preserve ↵Devang Patel
DBG_VALUEs. This approach has several downsides, for example, it does not work when dbg value is a constant integer, it does not work if reg is defined more than once, it places end of debug value range markers in the wrong place. It even causes misleading incorrect debug info when duplicate DBG_VALUE instructions point to same reg def. Instead, use simpler approach and let DBG_VALUE follow its predecessor instruction. After live debug value analysis pass, all DBG_VALUE instruction are placed at the right place. Thanks Jakob for the hint! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132483 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01Allow bitcasts between valid types of the same size and vectorEric Christopher
types if the vector type is legal. Fixes rdar://9306086 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132420 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-29On Darwin ARM, set the UNWIND_RESUME libcall to _Unwind_SjLj_Resume.John McCall
This is important for the correct lowering of unwind instructions (which doesn't matter at all) and llvm.eh.resume calls (which does). Take 2, now with more basic competence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132295 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-29I didn't mean to commit these residues of a personal project.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132293 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-29On Darwin ARM, set the UNWIND_RESUME libcall to _Unwind_SjLj_Resume.John McCall
This is important for the correct lowering of unwind instructions (which doesn't matter at all) and llvm.eh.resume calls (which does). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132291 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28Add support for ARM ldrexd/strexd intrinsics. They both use i32 register pairsBruno Cardoso Lopes
to load/store i64 values. Since there's no current support to explicitly declare such restrictions, implement it by using specific hardcoded register pairs during isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132248 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28Implement the 'M' output modifier for arm inline asm. This is fairlyEric Christopher
register allocation dependent and will occasionally break. WIP in the register allocator to model paired/etc registers. rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132242 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Fix the remaining atomic intrinsics to use the right register classes on Thumb2,Cameron Zwarich
and add some basic tests for them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Make size computation less brittle.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132222 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Make room for register allocation to improve.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132213 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Don't use movw / movt for iOS static codegen for now to workaround some ↵Evan Cheng
tools issues. rdar://9514789 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132211 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Add iOS testEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132203 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27And fix the test in r132194.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132196 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27Fix a silly mistake (which trips over an assertion) in r132099. rdar://9515076Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132194 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26During branch folding avoid inserting redundant DBG_VALUE machine instructions.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25Rewrite fast-isel integer cast handling to handle more cases, and to be ↵Eli Friedman
simpler and more consistent. The practical effects here are that x86-64 fast-isel can now handle trunc from i8 to i1, and ARM fast-isel can handle many more constructs involving integers narrower than 32 bits (including loads, stores, and many integer casts). rdar://9437928 . git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25Implement the 'm' modifier. Note that it only works for memory operands.Eric Christopher
Part of rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132081 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25Make tTAILJMPr/tTAILJMPrND emit a tBX without a preceding MOV of PC to LR. ThisCameron Zwarich
fixes <rdar://problem/9495913> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132042 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24Implement the arm 'L' asm modifier.Eric Christopher
Part of rdar://9119939 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132024 91177308-0d34-0410-b5e6-96231b3b80d8
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