a794ee4559
Similar to VFxUF, also add a VF VPValue to VPlan and use it to get the runtime VF in VPWidenIntOrFpInductionRecipe. Code for VF is only generated if there are users of VF, to avoid unnecessary test changes. PR: https://github.com/llvm/llvm-project/pull/95305
99 lines
6.0 KiB
LLVM
99 lines
6.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -mtriple=aarch64 -passes=loop-vectorize --force-vector-interleave=1 -S | FileCheck %s
|
|
|
|
target triple = "aarch64-unknown-linux-gnu"
|
|
|
|
; The test checks that scalarized code is not generated for SVE.
|
|
; It creates a scenario where the gep instruction is used outside
|
|
; the loop, preventing the gep (and consequently the loop induction
|
|
; update variable) from being classified as 'uniform'.
|
|
|
|
define void @test_no_scalarization(ptr %a, ptr noalias %b, i32 %idx, i32 %n) #0 {
|
|
; CHECK-LABEL: @test_no_scalarization(
|
|
; CHECK-NEXT: L.entry:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = add nsw i32 [[IDX:%.*]], 1
|
|
; CHECK-NEXT: [[SMAX:%.*]] = call i32 @llvm.smax.i32(i32 [[N:%.*]], i32 [[TMP0]])
|
|
; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[SMAX]], [[IDX]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = call i32 @llvm.vscale.i32()
|
|
; CHECK-NEXT: [[TMP3:%.*]] = mul i32 [[TMP2]], 2
|
|
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[TMP1]], [[TMP3]]
|
|
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
|
|
; CHECK: vector.ph:
|
|
; CHECK-NEXT: [[TMP4:%.*]] = call i32 @llvm.vscale.i32()
|
|
; CHECK-NEXT: [[TMP5:%.*]] = mul i32 [[TMP4]], 2
|
|
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i32 [[TMP1]], [[TMP5]]
|
|
; CHECK-NEXT: [[N_VEC:%.*]] = sub i32 [[TMP1]], [[N_MOD_VF]]
|
|
; CHECK-NEXT: [[IND_END:%.*]] = add i32 [[IDX]], [[N_VEC]]
|
|
; CHECK-NEXT: [[TMP6:%.*]] = call i32 @llvm.vscale.i32()
|
|
; CHECK-NEXT: [[TMP7:%.*]] = mul i32 [[TMP6]], 2
|
|
; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <vscale x 2 x i32> poison, i32 [[IDX]], i64 0
|
|
; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <vscale x 2 x i32> [[DOTSPLATINSERT]], <vscale x 2 x i32> poison, <vscale x 2 x i32> zeroinitializer
|
|
; CHECK-NEXT: [[TMP8:%.*]] = call <vscale x 2 x i32> @llvm.stepvector.nxv2i32()
|
|
; CHECK-NEXT: [[TMP9:%.*]] = add <vscale x 2 x i32> [[TMP8]], zeroinitializer
|
|
; CHECK-NEXT: [[TMP10:%.*]] = mul <vscale x 2 x i32> [[TMP9]], shufflevector (<vscale x 2 x i32> insertelement (<vscale x 2 x i32> poison, i32 1, i64 0), <vscale x 2 x i32> poison, <vscale x 2 x i32> zeroinitializer)
|
|
; CHECK-NEXT: [[INDUCTION:%.*]] = add <vscale x 2 x i32> [[DOTSPLAT]], [[TMP10]]
|
|
; CHECK-NEXT: [[TMP13:%.*]] = mul i32 1, [[TMP7]]
|
|
; CHECK-NEXT: [[DOTSPLATINSERT1:%.*]] = insertelement <vscale x 2 x i32> poison, i32 [[TMP13]], i64 0
|
|
; CHECK-NEXT: [[DOTSPLAT2:%.*]] = shufflevector <vscale x 2 x i32> [[DOTSPLATINSERT1]], <vscale x 2 x i32> poison, <vscale x 2 x i32> zeroinitializer
|
|
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
|
|
; CHECK: vector.body:
|
|
; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
|
|
; CHECK-NEXT: [[VEC_IND:%.*]] = phi <vscale x 2 x i32> [ [[INDUCTION]], [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
|
|
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = add i32 [[IDX]], [[INDEX]]
|
|
; CHECK-NEXT: [[TMP14:%.*]] = add i32 [[OFFSET_IDX]], 0
|
|
; CHECK-NEXT: [[TMP15:%.*]] = getelementptr i64, ptr [[A:%.*]], <vscale x 2 x i32> [[VEC_IND]]
|
|
; CHECK-NEXT: [[TMP16:%.*]] = extractelement <vscale x 2 x ptr> [[TMP15]], i32 0
|
|
; CHECK-NEXT: [[TMP17:%.*]] = getelementptr double, ptr [[TMP16]], i32 0
|
|
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x double>, ptr [[TMP17]], align 8
|
|
; CHECK-NEXT: [[TMP18:%.*]] = getelementptr i64, ptr [[B:%.*]], i32 [[TMP14]]
|
|
; CHECK-NEXT: [[TMP19:%.*]] = getelementptr double, ptr [[TMP18]], i32 0
|
|
; CHECK-NEXT: store <vscale x 2 x double> [[WIDE_LOAD]], ptr [[TMP19]], align 8
|
|
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], [[TMP7]]
|
|
; CHECK-NEXT: [[VEC_IND_NEXT]] = add <vscale x 2 x i32> [[VEC_IND]], [[DOTSPLAT2]]
|
|
; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i32 [[INDEX_NEXT]], [[N_VEC]]
|
|
; CHECK-NEXT: br i1 [[TMP20]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
|
|
; CHECK: middle.block:
|
|
; CHECK-NEXT: [[TMP21:%.*]] = call i32 @llvm.vscale.i32()
|
|
; CHECK-NEXT: [[TMP22:%.*]] = mul i32 [[TMP21]], 2
|
|
; CHECK-NEXT: [[TMP23:%.*]] = sub i32 [[TMP22]], 1
|
|
; CHECK-NEXT: [[TMP24:%.*]] = extractelement <vscale x 2 x ptr> [[TMP15]], i32 [[TMP23]]
|
|
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 [[TMP1]], [[N_VEC]]
|
|
; CHECK-NEXT: br i1 [[CMP_N]], label [[L_EXIT:%.*]], label [[SCALAR_PH]]
|
|
; CHECK: scalar.ph:
|
|
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[IDX]], [[L_ENTRY:%.*]] ]
|
|
; CHECK-NEXT: br label [[L_LOOPBODY:%.*]]
|
|
; CHECK: L.LoopBody:
|
|
; CHECK-NEXT: [[INDVAR:%.*]] = phi i32 [ [[INDVAR_NEXT:%.*]], [[L_LOOPBODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
|
|
; CHECK-NEXT: [[INDVAR_NEXT]] = add nsw i32 [[INDVAR]], 1
|
|
; CHECK-NEXT: [[TMP25:%.*]] = getelementptr i64, ptr [[A]], i32 [[INDVAR]]
|
|
; CHECK-NEXT: [[TMP26:%.*]] = load double, ptr [[TMP25]], align 8
|
|
; CHECK-NEXT: [[GEP_B:%.*]] = getelementptr i64, ptr [[B]], i32 [[INDVAR]]
|
|
; CHECK-NEXT: store double [[TMP26]], ptr [[GEP_B]], align 8
|
|
; CHECK-NEXT: [[TMP27:%.*]] = icmp slt i32 [[INDVAR_NEXT]], [[N]]
|
|
; CHECK-NEXT: br i1 [[TMP27]], label [[L_LOOPBODY]], label [[L_EXIT]], !llvm.loop [[LOOP3:![0-9]+]]
|
|
; CHECK: L.exit:
|
|
; CHECK-NEXT: [[DOTLCSSA:%.*]] = phi ptr [ [[TMP25]], [[L_LOOPBODY]] ], [ [[TMP24]], [[MIDDLE_BLOCK]] ]
|
|
; CHECK-NEXT: store i64 1, ptr [[DOTLCSSA]], align 8
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
L.entry:
|
|
br label %L.LoopBody
|
|
|
|
L.LoopBody: ; preds = %L.LoopBody, %L.entry
|
|
%indvar = phi i32 [ %indvar.next, %L.LoopBody ], [ %idx, %L.entry ]
|
|
%indvar.next = add nsw i32 %indvar, 1
|
|
%0 = getelementptr i64, ptr %a, i32 %indvar
|
|
%1 = load double, ptr %0, align 8
|
|
%gep.b = getelementptr i64, ptr %b, i32 %indvar
|
|
store double %1, ptr %gep.b
|
|
%2 = icmp slt i32 %indvar.next, %n
|
|
br i1 %2, label %L.LoopBody, label %L.exit
|
|
|
|
L.exit: ; preds = %L.LoopBody
|
|
store i64 1, ptr %0, align 8
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { nofree norecurse noreturn nosync nounwind "target-features"="+sve" }
|
|
|