4197386dbd
The following functions have an early exit for scalable vectors:
SelectionDAG::canCreateUndefOrPoison
SelectionDAG:isGuaranteedNotToBeUndefOrPoison
The implementations of these don't look to be sensitive to the
vector type other than some uses of demanded elts analysis that
doesn't fully support scalable types. That said the initial
calculation demands all elements and so I've followed the same
scheme as used by TargetLowering::SimplifyDemandedBits.
74 lines
4.0 KiB
LLVM
74 lines
4.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=aarch64 -mattr=+sve %s -o - | FileCheck %s
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define i64 @scalable_int_min_max(ptr %arg, ptr %arg1, <vscale x 2 x ptr> %i37, <vscale x 2 x i64> %i42, <vscale x 2 x i64> %i54) {
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; CHECK-LABEL: scalable_int_min_max:
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; CHECK: // %bb.0: // %entry
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; CHECK-NEXT: ptrue p0.d
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; CHECK-NEXT: mov w8, #3745 // =0xea1
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; CHECK-NEXT: movk w8, #16618, lsl #16
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; CHECK-NEXT: ld1w { z3.d }, p0/z, [x0]
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; CHECK-NEXT: mov z4.s, w8
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; CHECK-NEXT: mov w8, #57344 // =0xe000
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; CHECK-NEXT: movk w8, #17535, lsl #16
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; CHECK-NEXT: mov z5.s, w8
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; CHECK-NEXT: fmul z4.s, p0/m, z4.s, z3.s
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; CHECK-NEXT: fadd z4.s, p0/m, z4.s, z5.s
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; CHECK-NEXT: mov z5.d, #1023 // =0x3ff
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; CHECK-NEXT: fcvtzs z4.d, p0/m, z4.s
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; CHECK-NEXT: smax z4.d, z4.d, #0
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; CHECK-NEXT: smin z4.d, p0/m, z4.d, z5.d
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; CHECK-NEXT: cmpne p1.d, p0/z, z4.d, #0
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; CHECK-NEXT: ld1w { z0.d }, p1/z, [z0.d]
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; CHECK-NEXT: ld1w { z4.d }, p1/z, [x1]
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; CHECK-NEXT: fadd z0.s, p0/m, z0.s, z4.s
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; CHECK-NEXT: fcmge p2.s, p0/z, z0.s, z3.s
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; CHECK-NEXT: add z0.d, z2.d, z1.d
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; CHECK-NEXT: bic p2.b, p1/z, p1.b, p2.b
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; CHECK-NEXT: mov z0.d, p2/m, z2.d
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; CHECK-NEXT: sel z0.d, p1, z0.d, z2.d
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; CHECK-NEXT: uaddv d0, p0, z0.d
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; CHECK-NEXT: fmov x0, d0
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; CHECK-NEXT: ret
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entry:
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%i56 = getelementptr inbounds float, ptr %arg, i64 0
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%i57 = load <vscale x 2 x float>, ptr %i56, align 4
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%i58 = fmul <vscale x 2 x float> %i57, splat (float 0x401D41D420000000)
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%i59 = fadd <vscale x 2 x float> %i58, splat (float 1.023500e+03)
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%i60 = fptosi <vscale x 2 x float> %i59 to <vscale x 2 x i32>
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%i61 = tail call <vscale x 2 x i32> @llvm.smax.nxv2i32(<vscale x 2 x i32> %i60, <vscale x 2 x i32> zeroinitializer)
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%i62 = tail call <vscale x 2 x i32> @llvm.smin.nxv2i32(<vscale x 2 x i32> %i61, <vscale x 2 x i32> splat (i32 1023))
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%i63 = icmp ne <vscale x 2 x i32> %i62, zeroinitializer
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%i64 = getelementptr float, ptr %arg1, i64 0
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%i65 = tail call <vscale x 2 x float> @llvm.masked.load.nxv2f32.p0(ptr %i64, i32 4, <vscale x 2 x i1> %i63, <vscale x 2 x float> poison)
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%i66 = tail call <vscale x 2 x float> @llvm.masked.gather.nxv2f32.nxv2p0(<vscale x 2 x ptr> %i37, i32 4, <vscale x 2 x i1> %i63, <vscale x 2 x float> poison)
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%i67 = fadd <vscale x 2 x float> %i65, %i66
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%i68 = fcmp ult <vscale x 2 x float> %i67, %i57
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%i74 = select <vscale x 2 x i1> %i63, <vscale x 2 x i1> %i68, <vscale x 2 x i1> zeroinitializer
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%i75 = select <vscale x 2 x i1> %i74, <vscale x 2 x i64> zeroinitializer, <vscale x 2 x i64> %i42
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%i76 = select <vscale x 2 x i1> %i63, <vscale x 2 x i64> %i75, <vscale x 2 x i64> zeroinitializer
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%i77 = add <vscale x 2 x i64> %i54, %i76
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%i116 = tail call i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64> %i77)
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ret i64 %i116
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}
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; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
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declare <vscale x 2 x i32> @llvm.smax.nxv2i32(<vscale x 2 x i32>, <vscale x 2 x i32>) #0
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; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
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declare <vscale x 2 x i32> @llvm.smin.nxv2i32(<vscale x 2 x i32>, <vscale x 2 x i32>) #0
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; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: read)
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declare <vscale x 2 x float> @llvm.masked.load.nxv2f32.p0(ptr nocapture, i32 immarg, <vscale x 2 x i1>, <vscale x 2 x float>) #1
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; Function Attrs: nocallback nofree nosync nounwind willreturn memory(read)
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declare <vscale x 2 x float> @llvm.masked.gather.nxv2f32.nxv2p0(<vscale x 2 x ptr>, i32 immarg, <vscale x 2 x i1>, <vscale x 2 x float>) #2
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; Function Attrs: nocallback nofree nosync nounwind willreturn memory(none)
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declare i64 @llvm.vector.reduce.add.nxv2i64(<vscale x 2 x i64>) #3
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attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: read) }
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attributes #2 = { nocallback nofree nosync nounwind willreturn memory(read) }
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attributes #3 = { nocallback nofree nosync nounwind willreturn memory(none) }
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