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* ARM ISel: Don't create illegal types during LowerMULArnold Schwaighofer2013-05-14
| | | | | | | | | | | | | | | | | The transformation happening here is that we want to turn a "mul(ext(X), ext(X))" into a "vmull(X, X)", stripping off the extension. We have to make sure that X still has a valid vector type - possibly recreate an extension to a smaller type. In case of a extload of a memory type smaller than 64 bit we used create a ext(load()). The problem with doing this - instead of recreating an extload - is that an illegal type is exposed. This patch fixes this by creating extloads instead of ext(load()) sequences. Fixes PR15970. radar://13871383 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181842 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't introduce illegal types when creating vmull operations. <rdar://11324364>Bob Wilson2012-04-30
| | | | | | | | ARM BUILD_VECTORs created after type legalization cannot use i8 or i16 operands, since those types are not legal. Instead use i32 operands, which will be implicitly truncated by the BUILD_VECTOR to match the element type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155824 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix incorrect check for sign-extended constant BUILD_VECTOR.Bob Wilson2011-10-18
| | | | | | <rdar://problem/10298332> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142371 91177308-0d34-0410-b5e6-96231b3b80d8
* Typos.Chad Rosier2011-06-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133128 91177308-0d34-0410-b5e6-96231b3b80d8
* Revision r128665 added an optimization to make use of NEON multiplierChad Rosier2011-06-16
| | | | | | | | | | | | | | | | | | | 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
* Distribute (A + B) * C to (A * C) + (B * C) to make use of NEON multiplierEvan Cheng2011-03-31
| | | | | | | | | | | | accumulator forwarding: vadd d3, d0, d1 vmul d3, d3, d2 => vmul d3, d0, d2 vmla d3, d1, d2 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128665 91177308-0d34-0410-b5e6-96231b3b80d8
* Add intrinsics @llvm.arm.neon.vmulls and @llvm.arm.neon.vmullu.* back. FrontendsEvan Cheng2011-03-29
| | | | | | | | | | | | | | | | was lowering them to sext / uxt + mul instructions. Unfortunately the optimization passes may hoist the extensions out of the loop and separate them. When that happens, the long multiplication instructions can be broken into several scalar instructions, causing significant performance issue. Note the vmla and vmls intrinsics are not added back. Frontend will codegen them as intrinsics vmull* + add / sub. Also note the isel optimizations for catching mul + sext / zext are not changed either. First part of rdar://8832507, rdar://9203134 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128502 91177308-0d34-0410-b5e6-96231b3b80d8
* Optimizing (zext A + zext B) * C, to (VMULL A, C) + (VMULL B, C) during ↵Evan Cheng2011-03-29
| | | | | | | | | | | | | | | | | | | | isel lowering to fold the zero-extend's and take advantage of no-stall back to back vmul + vmla: vmull q0, d4, d6 vmlal q0, d5, d6 is faster than vaddl q0, d4, d5 vmovl q1, d6 vmul q0, q0, q1 This allows us to vmull + vmlal for: f = vmull_u8( vget_high_u8(s), c); f = vmlal_u8(f, vget_low_u8(s), c); rdar://9197392 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128444 91177308-0d34-0410-b5e6-96231b3b80d8
* Recognize sign/zero-extended constant BUILD_VECTORs for VMULL operations.Bob Wilson2010-11-23
| | | | | | | We need to check if the individual vector elements are sign/zero-extended values. For now this only handles constants values. Radar 8687140. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120034 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove NEON vmull, vmlal, and vmlsl intrinsics, replacing them with multiply,Bob Wilson2010-09-01
| | | | | | | | add, and subtract operations with zero-extended or sign-extended vectors. Update tests. Add auto-upgrade support for the old intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112773 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix tests to use fadd, fsub, and fmul, instead of add, sub, and mul,Dan Gohman2010-05-03
| | | | | | | when the type is floating-point. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102969 91177308-0d34-0410-b5e6-96231b3b80d8
* Merge a bunch of NEON tests into larger files so they run faster.Bob Wilson2009-10-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83667 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert more NEON tests to use FileCheck.Bob Wilson2009-10-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83507 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate more uses of llvm-as and llvm-dis.Dan Gohman2009-09-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81293 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for ARM's Advanced SIMD (NEON) instruction set.Bob Wilson2009-06-22
This is still a work in progress but most of the NEON instruction set is supported. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73919 91177308-0d34-0410-b5e6-96231b3b80d8
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