diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp index 0afebe0f5a12f..b61b9c7f3406f 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp +++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp @@ -288,33 +288,21 @@ GCNTTIImpl::GCNTTIImpl(const AMDGPUTargetMachine *TM, const Function &F) : BaseT(TM, F.getParent()->getDataLayout()), ST(static_cast(TM->getSubtargetImpl(F))), TLI(ST->getTargetLowering()), CommonTTI(TM, F), - IsGraphics(AMDGPU::isGraphics(F.getCallingConv())), - MaxVGPRs(ST->getMaxNumVGPRs( - std::max(ST->getWavesPerEU(F).first, - ST->getWavesPerEUForWorkGroup( - ST->getFlatWorkGroupSizes(F).second)))) { + IsGraphics(AMDGPU::isGraphics(F.getCallingConv())) { AMDGPU::SIModeRegisterDefaults Mode(F); HasFP32Denormals = Mode.allFP32Denormals(); HasFP64FP16Denormals = Mode.allFP64FP16Denormals(); } -unsigned GCNTTIImpl::getHardwareNumberOfRegisters(bool Vec) const { - // The concept of vector registers doesn't really exist. Some packed vector - // operations operate on the normal 32-bit registers. - return MaxVGPRs; -} +unsigned GCNTTIImpl::getNumberOfRegisters(unsigned RCID) const { + // NB: RCID is not an RCID. In fact it is 0 or 1 for scalar or vector + // registers. See getRegisterClassForType for the implementation. + // In this case vector registers are not vector in terms of + // VGPRs, but those which can hold multiple values. -unsigned GCNTTIImpl::getNumberOfRegisters(bool Vec) const { // This is really the number of registers to fill when vectorizing / // interleaving loops, so we lie to avoid trying to use all registers. - return getHardwareNumberOfRegisters(Vec) >> 3; -} - -unsigned GCNTTIImpl::getNumberOfRegisters(unsigned RCID) const { - const SIRegisterInfo *TRI = ST->getRegisterInfo(); - const TargetRegisterClass *RC = TRI->getRegClass(RCID); - unsigned NumVGPRs = (TRI->getRegSizeInBits(*RC) + 31) / 32; - return getHardwareNumberOfRegisters(false) / NumVGPRs; + return 4; } TypeSize diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h index ebeb05e885124..c0249fb9cf61a 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h +++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.h @@ -68,7 +68,6 @@ class GCNTTIImpl final : public BasicTTIImplBase { bool IsGraphics; bool HasFP32Denormals; bool HasFP64FP16Denormals; - unsigned MaxVGPRs; static const FeatureBitset InlineFeatureIgnoreList; @@ -113,8 +112,6 @@ class GCNTTIImpl final : public BasicTTIImplBase { return TTI::PSK_FastHardware; } - unsigned getHardwareNumberOfRegisters(bool Vector) const; - unsigned getNumberOfRegisters(bool Vector) const; unsigned getNumberOfRegisters(unsigned RCID) const; TypeSize getRegisterBitWidth(TargetTransformInfo::RegisterKind Vector) const; unsigned getMinVectorRegisterBitWidth() const; diff --git a/llvm/test/Transforms/LoopVectorize/AMDGPU/packed-fp32.ll b/llvm/test/Transforms/LoopVectorize/AMDGPU/packed-fp32.ll new file mode 100644 index 0000000000000..03ab914871efe --- /dev/null +++ b/llvm/test/Transforms/LoopVectorize/AMDGPU/packed-fp32.ll @@ -0,0 +1,24 @@ +; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a < %s -loop-vectorize -S | FileCheck -check-prefix=GFX90A %s + +; GFX90A-LABEL: @vectorize_v2f32_loop( +; GFX90A-COUNT-2: load <2 x float> +; GFX90A-COUNT-2: fadd fast <2 x float> + +define float @vectorize_v2f32_loop(float addrspace(1)* noalias %s) { +entry: + br label %for.body + +for.body: + %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] + %q.04 = phi float [ 0.0, %entry ], [ %add, %for.body ] + %arrayidx = getelementptr inbounds float, float addrspace(1)* %s, i64 %indvars.iv + %load = load float, float addrspace(1)* %arrayidx, align 4 + %add = fadd fast float %q.04, %load + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %exitcond = icmp eq i64 %indvars.iv.next, 256 + br i1 %exitcond, label %for.end, label %for.body + +for.end: + %add.lcssa = phi float [ %add, %for.body ] + ret float %add.lcssa +} diff --git a/llvm/test/Transforms/LoopVectorize/AMDGPU/packed-math.ll b/llvm/test/Transforms/LoopVectorize/AMDGPU/packed-math.ll index 2f2a171174d16..b7b6bfae5bb6c 100644 --- a/llvm/test/Transforms/LoopVectorize/AMDGPU/packed-math.ll +++ b/llvm/test/Transforms/LoopVectorize/AMDGPU/packed-math.ll @@ -11,65 +11,29 @@ define half @vectorize_v2f16_loop(half addrspace(1)* noalias %s) { ; GFX9-NEXT: br label [[VECTOR_BODY:%.*]] ; GFX9: vector.body: ; GFX9-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] -; GFX9-NEXT: [[VEC_PHI:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP16:%.*]], [[VECTOR_BODY]] ] -; GFX9-NEXT: [[VEC_PHI1:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP17:%.*]], [[VECTOR_BODY]] ] -; GFX9-NEXT: [[VEC_PHI2:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP18:%.*]], [[VECTOR_BODY]] ] -; GFX9-NEXT: [[VEC_PHI3:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP19:%.*]], [[VECTOR_BODY]] ] -; GFX9-NEXT: [[VEC_PHI4:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP20:%.*]], [[VECTOR_BODY]] ] -; GFX9-NEXT: [[VEC_PHI5:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP21:%.*]], [[VECTOR_BODY]] ] -; GFX9-NEXT: [[VEC_PHI6:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP22:%.*]], [[VECTOR_BODY]] ] -; GFX9-NEXT: [[VEC_PHI7:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP23:%.*]], [[VECTOR_BODY]] ] +; GFX9-NEXT: [[VEC_PHI:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP4:%.*]], [[VECTOR_BODY]] ] +; GFX9-NEXT: [[VEC_PHI1:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ] ; GFX9-NEXT: [[TMP0:%.*]] = getelementptr inbounds half, half addrspace(1)* [[S:%.*]], i64 [[INDEX]] ; GFX9-NEXT: [[TMP1:%.*]] = bitcast half addrspace(1)* [[TMP0]] to <2 x half> addrspace(1)* ; GFX9-NEXT: [[WIDE_LOAD:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP1]], align 2 ; GFX9-NEXT: [[TMP2:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 2 ; GFX9-NEXT: [[TMP3:%.*]] = bitcast half addrspace(1)* [[TMP2]] to <2 x half> addrspace(1)* -; GFX9-NEXT: [[WIDE_LOAD8:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP3]], align 2 -; GFX9-NEXT: [[TMP4:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 4 -; GFX9-NEXT: [[TMP5:%.*]] = bitcast half addrspace(1)* [[TMP4]] to <2 x half> addrspace(1)* -; GFX9-NEXT: [[WIDE_LOAD9:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP5]], align 2 -; GFX9-NEXT: [[TMP6:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 6 -; GFX9-NEXT: [[TMP7:%.*]] = bitcast half addrspace(1)* [[TMP6]] to <2 x half> addrspace(1)* -; GFX9-NEXT: [[WIDE_LOAD10:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP7]], align 2 -; GFX9-NEXT: [[TMP8:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 8 -; GFX9-NEXT: [[TMP9:%.*]] = bitcast half addrspace(1)* [[TMP8]] to <2 x half> addrspace(1)* -; GFX9-NEXT: [[WIDE_LOAD11:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP9]], align 2 -; GFX9-NEXT: [[TMP10:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 10 -; GFX9-NEXT: [[TMP11:%.*]] = bitcast half addrspace(1)* [[TMP10]] to <2 x half> addrspace(1)* -; GFX9-NEXT: [[WIDE_LOAD12:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP11]], align 2 -; GFX9-NEXT: [[TMP12:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 12 -; GFX9-NEXT: [[TMP13:%.*]] = bitcast half addrspace(1)* [[TMP12]] to <2 x half> addrspace(1)* -; GFX9-NEXT: [[WIDE_LOAD13:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP13]], align 2 -; GFX9-NEXT: [[TMP14:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 14 -; GFX9-NEXT: [[TMP15:%.*]] = bitcast half addrspace(1)* [[TMP14]] to <2 x half> addrspace(1)* -; GFX9-NEXT: [[WIDE_LOAD14:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP15]], align 2 -; GFX9-NEXT: [[TMP16]] = fadd fast <2 x half> [[VEC_PHI]], [[WIDE_LOAD]] -; GFX9-NEXT: [[TMP17]] = fadd fast <2 x half> [[VEC_PHI1]], [[WIDE_LOAD8]] -; GFX9-NEXT: [[TMP18]] = fadd fast <2 x half> [[VEC_PHI2]], [[WIDE_LOAD9]] -; GFX9-NEXT: [[TMP19]] = fadd fast <2 x half> [[VEC_PHI3]], [[WIDE_LOAD10]] -; GFX9-NEXT: [[TMP20]] = fadd fast <2 x half> [[VEC_PHI4]], [[WIDE_LOAD11]] -; GFX9-NEXT: [[TMP21]] = fadd fast <2 x half> [[VEC_PHI5]], [[WIDE_LOAD12]] -; GFX9-NEXT: [[TMP22]] = fadd fast <2 x half> [[VEC_PHI6]], [[WIDE_LOAD13]] -; GFX9-NEXT: [[TMP23]] = fadd fast <2 x half> [[VEC_PHI7]], [[WIDE_LOAD14]] -; GFX9-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16 -; GFX9-NEXT: [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], 256 -; GFX9-NEXT: br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] +; GFX9-NEXT: [[WIDE_LOAD2:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP3]], align 2 +; GFX9-NEXT: [[TMP4]] = fadd fast <2 x half> [[VEC_PHI]], [[WIDE_LOAD]] +; GFX9-NEXT: [[TMP5]] = fadd fast <2 x half> [[VEC_PHI1]], [[WIDE_LOAD2]] +; GFX9-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 +; GFX9-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 256 +; GFX9-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; GFX9: middle.block: -; GFX9-NEXT: [[BIN_RDX:%.*]] = fadd fast <2 x half> [[TMP17]], [[TMP16]] -; GFX9-NEXT: [[BIN_RDX15:%.*]] = fadd fast <2 x half> [[TMP18]], [[BIN_RDX]] -; GFX9-NEXT: [[BIN_RDX16:%.*]] = fadd fast <2 x half> [[TMP19]], [[BIN_RDX15]] -; GFX9-NEXT: [[BIN_RDX17:%.*]] = fadd fast <2 x half> [[TMP20]], [[BIN_RDX16]] -; GFX9-NEXT: [[BIN_RDX18:%.*]] = fadd fast <2 x half> [[TMP21]], [[BIN_RDX17]] -; GFX9-NEXT: [[BIN_RDX19:%.*]] = fadd fast <2 x half> [[TMP22]], [[BIN_RDX18]] -; GFX9-NEXT: [[BIN_RDX20:%.*]] = fadd fast <2 x half> [[TMP23]], [[BIN_RDX19]] -; GFX9-NEXT: [[TMP25:%.*]] = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH8000, <2 x half> [[BIN_RDX20]]) +; GFX9-NEXT: [[BIN_RDX:%.*]] = fadd fast <2 x half> [[TMP5]], [[TMP4]] +; GFX9-NEXT: [[TMP7:%.*]] = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH8000, <2 x half> [[BIN_RDX]]) ; GFX9-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] ; GFX9: scalar.ph: ; GFX9-NEXT: br label [[FOR_BODY:%.*]] ; GFX9: for.body: ; GFX9-NEXT: br i1 undef, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]] ; GFX9: for.end: -; GFX9-NEXT: [[ADD_LCSSA:%.*]] = phi half [ undef, [[FOR_BODY]] ], [ [[TMP25]], [[MIDDLE_BLOCK]] ] +; GFX9-NEXT: [[ADD_LCSSA:%.*]] = phi half [ undef, [[FOR_BODY]] ], [ [[TMP7]], [[MIDDLE_BLOCK]] ] ; GFX9-NEXT: ret half [[ADD_LCSSA]] ; ; VI-LABEL: @vectorize_v2f16_loop( @@ -79,65 +43,29 @@ define half @vectorize_v2f16_loop(half addrspace(1)* noalias %s) { ; VI-NEXT: br label [[VECTOR_BODY:%.*]] ; VI: vector.body: ; VI-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] -; VI-NEXT: [[VEC_PHI:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP16:%.*]], [[VECTOR_BODY]] ] -; VI-NEXT: [[VEC_PHI1:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP17:%.*]], [[VECTOR_BODY]] ] -; VI-NEXT: [[VEC_PHI2:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP18:%.*]], [[VECTOR_BODY]] ] -; VI-NEXT: [[VEC_PHI3:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP19:%.*]], [[VECTOR_BODY]] ] -; VI-NEXT: [[VEC_PHI4:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP20:%.*]], [[VECTOR_BODY]] ] -; VI-NEXT: [[VEC_PHI5:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP21:%.*]], [[VECTOR_BODY]] ] -; VI-NEXT: [[VEC_PHI6:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP22:%.*]], [[VECTOR_BODY]] ] -; VI-NEXT: [[VEC_PHI7:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP23:%.*]], [[VECTOR_BODY]] ] +; VI-NEXT: [[VEC_PHI:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP4:%.*]], [[VECTOR_BODY]] ] +; VI-NEXT: [[VEC_PHI1:%.*]] = phi <2 x half> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ] ; VI-NEXT: [[TMP0:%.*]] = getelementptr inbounds half, half addrspace(1)* [[S:%.*]], i64 [[INDEX]] ; VI-NEXT: [[TMP1:%.*]] = bitcast half addrspace(1)* [[TMP0]] to <2 x half> addrspace(1)* ; VI-NEXT: [[WIDE_LOAD:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP1]], align 2 ; VI-NEXT: [[TMP2:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 2 ; VI-NEXT: [[TMP3:%.*]] = bitcast half addrspace(1)* [[TMP2]] to <2 x half> addrspace(1)* -; VI-NEXT: [[WIDE_LOAD8:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP3]], align 2 -; VI-NEXT: [[TMP4:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 4 -; VI-NEXT: [[TMP5:%.*]] = bitcast half addrspace(1)* [[TMP4]] to <2 x half> addrspace(1)* -; VI-NEXT: [[WIDE_LOAD9:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP5]], align 2 -; VI-NEXT: [[TMP6:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 6 -; VI-NEXT: [[TMP7:%.*]] = bitcast half addrspace(1)* [[TMP6]] to <2 x half> addrspace(1)* -; VI-NEXT: [[WIDE_LOAD10:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP7]], align 2 -; VI-NEXT: [[TMP8:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 8 -; VI-NEXT: [[TMP9:%.*]] = bitcast half addrspace(1)* [[TMP8]] to <2 x half> addrspace(1)* -; VI-NEXT: [[WIDE_LOAD11:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP9]], align 2 -; VI-NEXT: [[TMP10:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 10 -; VI-NEXT: [[TMP11:%.*]] = bitcast half addrspace(1)* [[TMP10]] to <2 x half> addrspace(1)* -; VI-NEXT: [[WIDE_LOAD12:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP11]], align 2 -; VI-NEXT: [[TMP12:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 12 -; VI-NEXT: [[TMP13:%.*]] = bitcast half addrspace(1)* [[TMP12]] to <2 x half> addrspace(1)* -; VI-NEXT: [[WIDE_LOAD13:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP13]], align 2 -; VI-NEXT: [[TMP14:%.*]] = getelementptr inbounds half, half addrspace(1)* [[TMP0]], i64 14 -; VI-NEXT: [[TMP15:%.*]] = bitcast half addrspace(1)* [[TMP14]] to <2 x half> addrspace(1)* -; VI-NEXT: [[WIDE_LOAD14:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP15]], align 2 -; VI-NEXT: [[TMP16]] = fadd fast <2 x half> [[VEC_PHI]], [[WIDE_LOAD]] -; VI-NEXT: [[TMP17]] = fadd fast <2 x half> [[VEC_PHI1]], [[WIDE_LOAD8]] -; VI-NEXT: [[TMP18]] = fadd fast <2 x half> [[VEC_PHI2]], [[WIDE_LOAD9]] -; VI-NEXT: [[TMP19]] = fadd fast <2 x half> [[VEC_PHI3]], [[WIDE_LOAD10]] -; VI-NEXT: [[TMP20]] = fadd fast <2 x half> [[VEC_PHI4]], [[WIDE_LOAD11]] -; VI-NEXT: [[TMP21]] = fadd fast <2 x half> [[VEC_PHI5]], [[WIDE_LOAD12]] -; VI-NEXT: [[TMP22]] = fadd fast <2 x half> [[VEC_PHI6]], [[WIDE_LOAD13]] -; VI-NEXT: [[TMP23]] = fadd fast <2 x half> [[VEC_PHI7]], [[WIDE_LOAD14]] -; VI-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16 -; VI-NEXT: [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], 256 -; VI-NEXT: br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] +; VI-NEXT: [[WIDE_LOAD2:%.*]] = load <2 x half>, <2 x half> addrspace(1)* [[TMP3]], align 2 +; VI-NEXT: [[TMP4]] = fadd fast <2 x half> [[VEC_PHI]], [[WIDE_LOAD]] +; VI-NEXT: [[TMP5]] = fadd fast <2 x half> [[VEC_PHI1]], [[WIDE_LOAD2]] +; VI-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 +; VI-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 256 +; VI-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; VI: middle.block: -; VI-NEXT: [[BIN_RDX:%.*]] = fadd fast <2 x half> [[TMP17]], [[TMP16]] -; VI-NEXT: [[BIN_RDX15:%.*]] = fadd fast <2 x half> [[TMP18]], [[BIN_RDX]] -; VI-NEXT: [[BIN_RDX16:%.*]] = fadd fast <2 x half> [[TMP19]], [[BIN_RDX15]] -; VI-NEXT: [[BIN_RDX17:%.*]] = fadd fast <2 x half> [[TMP20]], [[BIN_RDX16]] -; VI-NEXT: [[BIN_RDX18:%.*]] = fadd fast <2 x half> [[TMP21]], [[BIN_RDX17]] -; VI-NEXT: [[BIN_RDX19:%.*]] = fadd fast <2 x half> [[TMP22]], [[BIN_RDX18]] -; VI-NEXT: [[BIN_RDX20:%.*]] = fadd fast <2 x half> [[TMP23]], [[BIN_RDX19]] -; VI-NEXT: [[TMP25:%.*]] = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH8000, <2 x half> [[BIN_RDX20]]) +; VI-NEXT: [[BIN_RDX:%.*]] = fadd fast <2 x half> [[TMP5]], [[TMP4]] +; VI-NEXT: [[TMP7:%.*]] = call fast half @llvm.vector.reduce.fadd.v2f16(half 0xH8000, <2 x half> [[BIN_RDX]]) ; VI-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] ; VI: scalar.ph: ; VI-NEXT: br label [[FOR_BODY:%.*]] ; VI: for.body: ; VI-NEXT: br i1 undef, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]] ; VI: for.end: -; VI-NEXT: [[ADD_LCSSA:%.*]] = phi half [ undef, [[FOR_BODY]] ], [ [[TMP25]], [[MIDDLE_BLOCK]] ] +; VI-NEXT: [[ADD_LCSSA:%.*]] = phi half [ undef, [[FOR_BODY]] ], [ [[TMP7]], [[MIDDLE_BLOCK]] ] ; VI-NEXT: ret half [[ADD_LCSSA]] ; ; CI-LABEL: @vectorize_v2f16_loop(