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2010-11-12Add conditional mvn instructions.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118935 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-12Add some missing isel predicates on def : pat patterns to avoid generating ↵Evan Cheng
VFP vmla / vmls (they cause stalls). Disabling them in isel is properly not a right solution, I'll look into a proper solution next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118922 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08Add support for ARM's specialized vector-compare-against-zero instructions.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118453 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08Revert 118422 in search of bot verdancy.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118429 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08Support -mcpu=cortex-a8 in ARM attributes - Has Fixme. 1 Test modified.Jason W Kim
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118422 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05Add codegen and encoding support for the immediate form of vbic.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118291 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-04Fix @llvm.prefetch isel. Selecting between pld / pldw using the first ↵Evan Cheng
immediate rw. There is currently no intrinsic that matches to pli. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118237 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Covert VORRIMM to be produced via early target-specific DAG combining, ↵Owen Anderson
rather than legalization. This is both the conceptually correct place for it, as well as allowing it to be more aggressive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118204 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Add support for code generation of the one register with immediate form of vorr.Owen Anderson
We could be more aggressive about making this work for a larger range of constants, but this seems like a good start. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118201 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Fix test.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118187 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Add codegen patterns for VST1-lane instructions. Radar 8599955.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118176 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Check for extractelement with a variable operand for the element number.Bob Wilson
For NEON we had been assuming this was always an immediate constant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118175 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Fix preload instruction isel. Only v7 supports pli, and only v7 with mp ↵Evan Cheng
extension supports pldw. Add subtarget attribute to denote mp extension support and legalize illegal ones to nothing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118160 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Add support to match @llvm.prefetch to pld / pldw / pli. rdar://8601536.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118152 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Two sets of changes. Sorry they are intermingled.Evan Cheng
1. Fix pre-ra scheduler so it doesn't try to push instructions above calls to "optimize for latency". Call instructions don't have the right latency and this is more likely to use introduce spills. 2. Fix if-converter cost function. For ARM, it should use instruction latencies, not # of micro-ops since multi-latency instructions is completely executed even when the predicate is false. Also, some instruction will be "slower" when they are predicated due to the register def becoming implicit input. rdar://8598427 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118135 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-02Inline asm mult-alt constraint tests.John Thompson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118107 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-02Revert r114340 (improvements in Darwin function prologue/epilogue), as it brokeJim Grosbach
assumptions about stack layout. Specifically, LR must be saved next to FP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118026 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01Add support for alignment operands on VLD1-lane instructions.Bob Wilson
This is another part of the fix for Radar 8599955. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117976 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01Add VLD1-lane testcases for quad-register types.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117975 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01Add NEON VLD1-lane instructions. Partial fix for Radar 8599955.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01When we look at instructions to convert to setting the 's' flag, we need to lookBill Wendling
at more than those which define CPSR. You can have this situation: (1) subs ... (2) sub r6, r5, r4 (3) movge ... (4) cmp r6, 0 (5) movge ... We cannot convert (2) to "subs" because (3) is using the CPSR set by (1). There's an analogous situation here: (1) sub r1, r2, r3 (2) sub r4, r5, r6 (3) cmp r4, ... (5) movge ... (6) cmp r1, ... (7) movge ... We cannot convert (1) to "subs" because of the intervening use of CPSR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117950 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01NEON does not support truncating vector stores. Radar 8598391.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117940 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01More tests to XFAIL. The arm-and-txt-peephole.ll test passes even when theBill Wendling
peephole optimizer is disabled. That's not good at all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117905 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01Disable because peephole is disabled.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117903 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Teach machine cse to eliminate instructions with multiple physreg uses and ↵Evan Cheng
defs. rdar://8610857. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117745 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Remove DAG combiner patch to fold vector splats. Instcombiner does it now.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117720 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Teach the DAG combiner to fold a splat of a splat. Radar 8597790.Bob Wilson
Also do some minor refactoring to reduce indentation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117558 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Re-commit 117518 and 117519 now that ARM MC test failures are out of the way.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117531 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Revert 117518 and 117519 for now. They changed scheduling and cause MC tests ↵Evan Cheng
to fail. Ugh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117520 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28- Assign load / store with shifter op address modes the right itinerary classes.Evan Cheng
- For now, loads of [r, r] addressing mode is the same as the [r, r lsl/lsr/asr #] variants. ARMBaseInstrInfo::getOperandLatency() should identify the former case and reduce the output latency by 1. - Also identify [r, r << 2] case. This special form of shifter addressing mode is "free". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117519 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-27Shifter ops are not always free. Do not fold them (especially to formEvan Cheng
complex load / store addressing mode) when they have higher cost and when they have more than one use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-27SelectionDAG shuffle nodes do not allow operands with different numbers ofBob Wilson
elements than the result vector type. So, when an instruction like: %8 = shufflevector <2 x float> %4, <2 x float> %7, <4 x i32> <i32 1, i32 0, i32 3, i32 2> is translated to a DAG, each operand is changed to a concat_vectors node that appends 2 undef elements. That is: shuffle [a,b], [c,d] is changed to: shuffle [a,b,u,u], [c,d,u,u] That's probably the right thing for x86 but for NEON, we'd much rather have: shuffle [a,b,c,d], undef Teach the DAG combiner how to do that transformation for ARM. Radar 8597007. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26FileCheck'izeJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26When the "true" and "false" blocks of a diamond if-conversion are the same,Bob Wilson
do not double-count the duplicate instructions by counting once from the beginning and again from the end. Keep track of where the duplicates from the beginning ended and don't go past that point when counting duplicates at the end. Radar 8589805. This change causes one of the MC/ARM/simple-fp-encoding tests to produce different (better!) code without the vmovne instruction being tested. I changed the test to produce vmovne and vmoveq instructions but moving between register files in the opposite direction. That's not quite the same but predicated versions of those instructions weren't being tested before, so at least the test coverage is not any worse, just different. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117333 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-25Add support for emitting ARM file attributes.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117275 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22tidy upJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117185 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22Remove duplicate test.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117158 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22tidy up.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117157 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22FileCheck-ize a few tests.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21putback r116983 and fix simple-fp-encoding.ll testsAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116992 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Revert r116983, which is breaking all the buildbots.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116987 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Add missing scheduling itineraries for transfers between core registers and ↵Evan Cheng
VFP registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116983 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Re-enable register pressure aware machine licm with fixes. Hoist() may haveEvan Cheng
erased the instruction during LICM so UpdateRegPressureAfter() should not reference it afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Revert r116781 "- Add a hook for target to determine whether an instruction defDaniel Dunbar
is", which breaks some nightly tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19- Add a hook for target to determine whether an instruction def isEvan Cheng
"long latency" enough to hoist even if it may increase spilling. Reloading a value from spill slot is often cheaper than performing an expensive computation in the loop. For X86, that means machine LICM will hoist SQRT, DIV, etc. ARM will be somewhat aggressive with VFP and NEON instructions. - Enable register pressure aware machine LICM by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Support alignment for NEON vld-lane and vst-lane instructions.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-18Revert r116220 - thus turning arm fast isel back on by default.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116762 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15ARM instructions that are both predicated and set the condition codesBob Wilson
have been printed with the "S" modifier after the predicate. With ARM's unified syntax, they are supposed to go in the other order. We fixed this for Thumb when we switched to unified syntax but missed changing it for ARM. Apparently we don't generate these instructions often because no one noticed until now. Thanks to Bill Wendling for the testcase! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Refactor the MOVsr[al]_flag and RRX pseudo-instructions to really be pseudosJim Grosbach
and let the ARMExpandPseudoInsts pass fix them up into the real (MOVs) instruction form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Tweak the ARM backend to use the RRX mnemonic instead of the 'mov a, b, rrx'Jim Grosbach
pseudonym. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116512 91177308-0d34-0410-b5e6-96231b3b80d8
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