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114 lines
5.1 KiB
114 lines
5.1 KiB
4 months ago
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve.fp -verify-machineinstrs -tail-predication=enabled -o - %s | FileCheck %s
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define arm_aapcs_vfpcc void @arm_var_f32_mve(float* %pSrc, i32 %blockSize, float* nocapture %pResult) {
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; CHECK-LABEL: arm_var_f32_mve:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: .save {r7, lr}
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; CHECK-NEXT: push {r7, lr}
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; CHECK-NEXT: vmov.i32 q0, #0x0
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; CHECK-NEXT: mov r3, r1
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; CHECK-NEXT: dlstp.32 lr, r1
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; CHECK-NEXT: mov r12, r0
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; CHECK-NEXT: .LBB0_1: @ %do.body.i
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; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: vldrw.u32 q1, [r12], #16
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; CHECK-NEXT: vadd.f32 q0, q0, q1
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; CHECK-NEXT: letp lr, .LBB0_1
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; CHECK-NEXT: @ %bb.2: @ %arm_mean_f32_mve.exit
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; CHECK-NEXT: vmov s4, r1
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; CHECK-NEXT: mov r3, r1
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; CHECK-NEXT: vadd.f32 s0, s3, s3
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; CHECK-NEXT: cmp r1, #4
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; CHECK-NEXT: vcvt.f32.u32 s4, s4
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; CHECK-NEXT: it ge
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; CHECK-NEXT: movge r3, #4
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; CHECK-NEXT: subs r3, r1, r3
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; CHECK-NEXT: mov.w lr, #1
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; CHECK-NEXT: adds r3, #3
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; CHECK-NEXT: add.w lr, lr, r3, lsr #2
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; CHECK-NEXT: mov r3, r1
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; CHECK-NEXT: dls lr, lr
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; CHECK-NEXT: vdiv.f32 s0, s0, s4
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; CHECK-NEXT: vmov r12, s0
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; CHECK-NEXT: vmov.i32 q0, #0x0
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; CHECK-NEXT: .LBB0_3: @ %do.body
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; CHECK-NEXT: @ =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: vctp.32 r3
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; CHECK-NEXT: subs r3, #4
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; CHECK-NEXT: vpsttt
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; CHECK-NEXT: vldrwt.u32 q1, [r0], #16
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; CHECK-NEXT: vsubt.f32 q1, q1, r12
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; CHECK-NEXT: vfmat.f32 q0, q1, q1
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; CHECK-NEXT: le lr, .LBB0_3
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; CHECK-NEXT: @ %bb.4: @ %do.end
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; CHECK-NEXT: subs r0, r1, #1
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; CHECK-NEXT: vadd.f32 s0, s3, s3
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; CHECK-NEXT: vmov s2, r0
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; CHECK-NEXT: vcvt.f32.u32 s2, s2
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; CHECK-NEXT: vdiv.f32 s0, s0, s2
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; CHECK-NEXT: vstr s0, [r2]
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; CHECK-NEXT: pop {r7, pc}
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entry:
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br label %do.body.i
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do.body.i: ; preds = %entry, %do.body.i
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%blkCnt.0.i = phi i32 [ %sub.i, %do.body.i ], [ %blockSize, %entry ]
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%sumVec.0.i = phi <4 x float> [ %3, %do.body.i ], [ zeroinitializer, %entry ]
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%pSrc.addr.0.i = phi float* [ %add.ptr.i, %do.body.i ], [ %pSrc, %entry ]
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%0 = tail call <4 x i1> @llvm.arm.mve.vctp32(i32 %blkCnt.0.i)
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%1 = bitcast float* %pSrc.addr.0.i to <4 x float>*
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%2 = tail call fast <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %1, i32 4, <4 x i1> %0, <4 x float> zeroinitializer)
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%3 = tail call fast <4 x float> @llvm.arm.mve.add.predicated.v4f32.v4i1(<4 x float> %sumVec.0.i, <4 x float> %2, <4 x i1> %0, <4 x float> %sumVec.0.i)
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%sub.i = add nsw i32 %blkCnt.0.i, -4
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%add.ptr.i = getelementptr inbounds float, float* %pSrc.addr.0.i, i32 4
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%cmp.i = icmp sgt i32 %blkCnt.0.i, 4
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br i1 %cmp.i, label %do.body.i, label %arm_mean_f32_mve.exit
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arm_mean_f32_mve.exit: ; preds = %do.body.i
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%4 = extractelement <4 x float> %3, i32 3
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%add2.i.i = fadd fast float %4, %4
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%conv.i = uitofp i32 %blockSize to float
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%div.i = fdiv fast float %add2.i.i, %conv.i
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%.splatinsert = insertelement <4 x float> undef, float %div.i, i32 0
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%.splat = shufflevector <4 x float> %.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
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br label %do.body
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do.body: ; preds = %do.body, %arm_mean_f32_mve.exit
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%blkCnt.0 = phi i32 [ %blockSize, %arm_mean_f32_mve.exit ], [ %sub, %do.body ]
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%sumVec.0 = phi <4 x float> [ zeroinitializer, %arm_mean_f32_mve.exit ], [ %9, %do.body ]
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%pSrc.addr.0 = phi float* [ %pSrc, %arm_mean_f32_mve.exit ], [ %add.ptr, %do.body ]
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%5 = tail call <4 x i1> @llvm.arm.mve.vctp32(i32 %blkCnt.0)
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%6 = bitcast float* %pSrc.addr.0 to <4 x float>*
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%7 = tail call fast <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %6, i32 4, <4 x i1> %5, <4 x float> zeroinitializer)
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%8 = tail call fast <4 x float> @llvm.arm.mve.sub.predicated.v4f32.v4i1(<4 x float> %7, <4 x float> %.splat, <4 x i1> %5, <4 x float> undef)
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%9 = tail call fast <4 x float> @llvm.arm.mve.fma.predicated.v4f32.v4i1(<4 x float> %8, <4 x float> %8, <4 x float> %sumVec.0, <4 x i1> %5)
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%sub = add nsw i32 %blkCnt.0, -4
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%add.ptr = getelementptr inbounds float, float* %pSrc.addr.0, i32 4
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%cmp1 = icmp sgt i32 %blkCnt.0, 4
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br i1 %cmp1, label %do.body, label %do.end
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do.end: ; preds = %do.body
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%10 = extractelement <4 x float> %9, i32 3
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%add2.i = fadd fast float %10, %10
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%sub2 = add i32 %blockSize, -1
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%conv = uitofp i32 %sub2 to float
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%div = fdiv fast float %add2.i, %conv
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br label %cleanup
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cleanup: ; preds = %entry, %do.end
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store float %div, float* %pResult, align 4
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ret void
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}
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declare <4 x float> @llvm.arm.mve.sub.predicated.v4f32.v4i1(<4 x float>, <4 x float>, <4 x i1>, <4 x float>)
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declare <4 x float> @llvm.arm.mve.fma.predicated.v4f32.v4i1(<4 x float>, <4 x float>, <4 x float>, <4 x i1>)
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declare <4 x i1> @llvm.arm.mve.vctp32(i32)
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declare <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>*, i32 immarg, <4 x i1>, <4 x float>)
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declare <4 x float> @llvm.arm.mve.add.predicated.v4f32.v4i1(<4 x float>, <4 x float>, <4 x i1>, <4 x float>)
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