9ff2ef9711
This patch uses DestructiveBinaryShImmUnpred (which was previously unused as far as I could tell) to define pseudos for arithmetic immediate instructions such as ADD (immediate), which allows using MOVPRFX with these instructions.
41 lines
1.5 KiB
LLVM
41 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -aarch64-sve-vector-bits-min=256 < %s | FileCheck %s
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target triple = "aarch64"
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;
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; NOTE: SVE lowering for the BSP pseudoinst is not currently implemented, so we
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; don't currently expect the code below to lower to BSL/BIT/BIF. Once
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; this is implemented, this test will be fleshed out.
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;
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define void @fixed_bitselect_v8i32(ptr %pre_cond_ptr, ptr %left_ptr, ptr %right_ptr, ptr %result_ptr) #0 {
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; CHECK-LABEL: fixed_bitselect_v8i32:
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; CHECK: // %bb.0:
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; CHECK-NEXT: ptrue p0.s, vl8
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; CHECK-NEXT: ld1w { z0.s }, p0/z, [x0]
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; CHECK-NEXT: ld1w { z1.s }, p0/z, [x1]
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; CHECK-NEXT: ld1w { z2.s }, p0/z, [x2]
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; CHECK-NEXT: movprfx z3, z0
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; CHECK-NEXT: subr z3.s, z3.s, #0 // =0x0
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; CHECK-NEXT: sub z0.s, z0.s, #1 // =0x1
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; CHECK-NEXT: and z1.d, z3.d, z1.d
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; CHECK-NEXT: and z0.d, z0.d, z2.d
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; CHECK-NEXT: orr z0.d, z0.d, z1.d
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; CHECK-NEXT: st1w { z0.s }, p0, [x3]
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; CHECK-NEXT: ret
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%pre_cond = load <8 x i32>, ptr %pre_cond_ptr
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%left = load <8 x i32>, ptr %left_ptr
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%right = load <8 x i32>, ptr %right_ptr
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%neg_cond = sub <8 x i32> zeroinitializer, %pre_cond
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%min_cond = add <8 x i32> %pre_cond, <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>
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%left_bits_0 = and <8 x i32> %neg_cond, %left
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%right_bits_0 = and <8 x i32> %min_cond, %right
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%bsl0000 = or <8 x i32> %right_bits_0, %left_bits_0
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store <8 x i32> %bsl0000, ptr %result_ptr
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ret void
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}
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attributes #0 = { "target-features"="+sve" }
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