1*15b0fabbSLuke Lau; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4 2*15b0fabbSLuke Lau; RUN: opt %s -S -riscv-codegenprepare -mtriple=riscv64 -mattr=+v | FileCheck %s 3*15b0fabbSLuke Lau 4*15b0fabbSLuke Laudeclare i64 @llvm.vscale.i64() 5*15b0fabbSLuke Laudeclare float @llvm.vector.reduce.fadd.nxv4f32(float, <vscale x 4 x float>) 6*15b0fabbSLuke Lau 7*15b0fabbSLuke Laudefine float @reduce_fadd(ptr %f) { 8*15b0fabbSLuke Lau; CHECK-LABEL: define float @reduce_fadd( 9*15b0fabbSLuke Lau; CHECK-SAME: ptr [[F:%.*]]) #[[ATTR2:[0-9]+]] { 10*15b0fabbSLuke Lau; CHECK-NEXT: entry: 11*15b0fabbSLuke Lau; CHECK-NEXT: [[VSCALE:%.*]] = tail call i64 @llvm.vscale.i64() 12*15b0fabbSLuke Lau; CHECK-NEXT: [[VECSIZE:%.*]] = shl nuw nsw i64 [[VSCALE]], 2 13*15b0fabbSLuke Lau; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 14*15b0fabbSLuke Lau; CHECK: vector.body: 15*15b0fabbSLuke Lau; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 16*15b0fabbSLuke Lau; CHECK-NEXT: [[TMP0:%.*]] = phi <vscale x 4 x float> [ insertelement (<vscale x 4 x float> poison, float 0.000000e+00, i64 0), [[ENTRY]] ], [ [[TMP2:%.*]], [[VECTOR_BODY]] ] 17*15b0fabbSLuke Lau; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds float, ptr [[F]], i64 [[INDEX]] 18*15b0fabbSLuke Lau; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x float>, ptr [[GEP]], align 4 19*15b0fabbSLuke Lau; CHECK-NEXT: [[TMP1:%.*]] = extractelement <vscale x 4 x float> [[TMP0]], i64 0 20*15b0fabbSLuke Lau; CHECK-NEXT: [[ACC:%.*]] = tail call float @llvm.vector.reduce.fadd.nxv4f32(float [[TMP1]], <vscale x 4 x float> [[WIDE_LOAD]]) 21*15b0fabbSLuke Lau; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[VECSIZE]] 22*15b0fabbSLuke Lau; CHECK-NEXT: [[DONE:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024 23*15b0fabbSLuke Lau; CHECK-NEXT: [[TMP2]] = insertelement <vscale x 4 x float> poison, float [[ACC]], i64 0 24*15b0fabbSLuke Lau; CHECK-NEXT: br i1 [[DONE]], label [[EXIT:%.*]], label [[VECTOR_BODY]] 25*15b0fabbSLuke Lau; CHECK: exit: 26*15b0fabbSLuke Lau; CHECK-NEXT: ret float [[ACC]] 27*15b0fabbSLuke Lau; 28*15b0fabbSLuke Lau 29*15b0fabbSLuke Lauentry: 30*15b0fabbSLuke Lau %vscale = tail call i64 @llvm.vscale.i64() 31*15b0fabbSLuke Lau %vecsize = shl nuw nsw i64 %vscale, 2 32*15b0fabbSLuke Lau br label %vector.body 33*15b0fabbSLuke Lau 34*15b0fabbSLuke Lauvector.body: 35*15b0fabbSLuke Lau %index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ] 36*15b0fabbSLuke Lau %vec.phi = phi float [ 0.000000e+00, %entry ], [ %acc, %vector.body ] 37*15b0fabbSLuke Lau %gep = getelementptr inbounds float, ptr %f, i64 %index 38*15b0fabbSLuke Lau %wide.load = load <vscale x 4 x float>, ptr %gep, align 4 39*15b0fabbSLuke Lau %acc = tail call float @llvm.vector.reduce.fadd.nxv4f32(float %vec.phi, <vscale x 4 x float> %wide.load) 40*15b0fabbSLuke Lau %index.next = add nuw i64 %index, %vecsize 41*15b0fabbSLuke Lau %done = icmp eq i64 %index.next, 1024 42*15b0fabbSLuke Lau br i1 %done, label %exit, label %vector.body 43*15b0fabbSLuke Lau 44*15b0fabbSLuke Lauexit: 45*15b0fabbSLuke Lau ret float %acc 46*15b0fabbSLuke Lau} 47