56c091ea71
This brings the printing of scalable vector constant splats inline with their fixed length counterparts.
51 lines
2.5 KiB
LLVM
51 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=aggressive-instcombine -S | FileCheck %s
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; Use the same idoim as X86/or-load.ll @loadCombine_2consecutive to represent a
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; sequence of operations that can be replaced by a single double-width load when
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; using scalar types but whose logic does not apply to fixed length vectors.
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define <8 x i16> @or-load-fixed-length-vector(ptr %p1) {
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; CHECK-LABEL: @or-load-fixed-length-vector(
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; CHECK-NEXT: [[P2:%.*]] = getelementptr i8, ptr [[P1:%.*]], i32 1
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; CHECK-NEXT: [[L1:%.*]] = load <8 x i8>, ptr [[P1]], align 1
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; CHECK-NEXT: [[L2:%.*]] = load <8 x i8>, ptr [[P2]], align 1
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; CHECK-NEXT: [[E1:%.*]] = zext <8 x i8> [[L1]] to <8 x i16>
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; CHECK-NEXT: [[E2:%.*]] = zext <8 x i8> [[L2]] to <8 x i16>
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; CHECK-NEXT: [[S2:%.*]] = shl <8 x i16> [[E2]], splat (i16 8)
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; CHECK-NEXT: [[OR:%.*]] = or <8 x i16> [[E1]], [[S2]]
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; CHECK-NEXT: ret <8 x i16> [[OR]]
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;
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%p2 = getelementptr i8, ptr %p1, i32 1
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%l1 = load <8 x i8>, ptr %p1, align 1
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%l2 = load <8 x i8>, ptr %p2, align 1
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%e1 = zext <8 x i8> %l1 to <8 x i16>
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%e2 = zext <8 x i8> %l2 to <8 x i16>
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%s2 = shl <8 x i16> %e2, <i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8>
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%or = or <8 x i16> %e1, %s2
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ret <8 x i16> %or
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}
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; Use the same idoim as X86/or-load.ll @loadCombine_2consecutive to represent a
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; sequence of operations that can be replaced by a single double-width load when
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; using scalar types but whose logic does not apply to scalable length vectors.
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define <vscale x 8 x i16> @or-load-scalable-vector(ptr %p1) {
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; CHECK-LABEL: @or-load-scalable-vector(
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; CHECK-NEXT: [[P2:%.*]] = getelementptr i8, ptr [[P1:%.*]], i32 1
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; CHECK-NEXT: [[L1:%.*]] = load <vscale x 8 x i8>, ptr [[P1]], align 1
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; CHECK-NEXT: [[L2:%.*]] = load <vscale x 8 x i8>, ptr [[P2]], align 1
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; CHECK-NEXT: [[E1:%.*]] = zext <vscale x 8 x i8> [[L1]] to <vscale x 8 x i16>
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; CHECK-NEXT: [[E2:%.*]] = zext <vscale x 8 x i8> [[L2]] to <vscale x 8 x i16>
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; CHECK-NEXT: [[S2:%.*]] = shl <vscale x 8 x i16> [[E2]], splat (i16 8)
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; CHECK-NEXT: [[OR:%.*]] = or <vscale x 8 x i16> [[E1]], [[S2]]
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; CHECK-NEXT: ret <vscale x 8 x i16> [[OR]]
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;
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%p2 = getelementptr i8, ptr %p1, i32 1
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%l1 = load <vscale x 8 x i8>, ptr %p1, align 1
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%l2 = load <vscale x 8 x i8>, ptr %p2, align 1
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%e1 = zext <vscale x 8 x i8> %l1 to <vscale x 8 x i16>
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%e2 = zext <vscale x 8 x i8> %l2 to <vscale x 8 x i16>
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%s2 = shl <vscale x 8 x i16> %e2, splat (i16 8)
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%or = or <vscale x 8 x i16> %e1, %s2
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ret <vscale x 8 x i16> %or
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}
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