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clang-p2996/llvm/test/Transforms/LoopVectorize/RISCV/induction-costs.ll
Florian Hahn a794ee4559 [VPlan] Add VPValue for VF, use it for VPWidenIntOrFpInductionRecipe. (#95305) 
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
2024-09-10 10:41:35 +01:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -p loop-vectorize -S %s | FileCheck %s
target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128"
target triple = "riscv64-unknown-linux-gnu"
; Test case for https://github.com/llvm/llvm-project/issues/106417.
define void @skip_free_iv_truncate(i16 %x, ptr %A) #0 {
; CHECK-LABEL: define void @skip_free_iv_truncate(
; CHECK-SAME: i16 [[X:%.*]], ptr [[A:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: [[ENTRY:.*]]:
; CHECK-NEXT: [[X_I32:%.*]] = sext i16 [[X]] to i32
; CHECK-NEXT: [[X_I64:%.*]] = sext i16 [[X]] to i64
; CHECK-NEXT: [[INVARIANT_GEP:%.*]] = getelementptr i8, ptr [[A]], i64 -8
; CHECK-NEXT: [[SMAX20:%.*]] = call i64 @llvm.smax.i64(i64 [[X_I64]], i64 99)
; CHECK-NEXT: [[TMP0:%.*]] = sub i64 [[SMAX20]], [[X_I64]]
; CHECK-NEXT: [[UMIN21:%.*]] = call i64 @llvm.umin.i64(i64 [[TMP0]], i64 1)
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[SMAX20]], [[UMIN21]]
; CHECK-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], [[X_I64]]
; CHECK-NEXT: [[TMP3:%.*]] = udiv i64 [[TMP2]], 3
; CHECK-NEXT: [[TMP4:%.*]] = add i64 [[UMIN21]], [[TMP3]]
; CHECK-NEXT: [[TMP5:%.*]] = add i64 [[TMP4]], 1
; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP7:%.*]] = mul i64 [[TMP6]], 8
; CHECK-NEXT: [[TMP8:%.*]] = call i64 @llvm.umax.i64(i64 288, i64 [[TMP7]])
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ule i64 [[TMP5]], [[TMP8]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_SCEVCHECK:.*]]
; CHECK: [[VECTOR_SCEVCHECK]]:
; CHECK-NEXT: [[SMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[X_I64]], i64 99)
; CHECK-NEXT: [[TMP9:%.*]] = sub i64 [[SMAX]], [[X_I64]]
; CHECK-NEXT: [[UMIN:%.*]] = call i64 @llvm.umin.i64(i64 [[TMP9]], i64 1)
; CHECK-NEXT: [[TMP10:%.*]] = sub i64 [[SMAX]], [[UMIN]]
; CHECK-NEXT: [[TMP11:%.*]] = sub i64 [[TMP10]], [[X_I64]]
; CHECK-NEXT: [[TMP12:%.*]] = udiv i64 [[TMP11]], 3
; CHECK-NEXT: [[TMP13:%.*]] = add i64 [[UMIN]], [[TMP12]]
; CHECK-NEXT: [[TMP14:%.*]] = shl nsw i64 [[X_I64]], 1
; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP14]]
; CHECK-NEXT: [[MUL:%.*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 6, i64 [[TMP13]])
; CHECK-NEXT: [[MUL_RESULT:%.*]] = extractvalue { i64, i1 } [[MUL]], 0
; CHECK-NEXT: [[MUL_OVERFLOW:%.*]] = extractvalue { i64, i1 } [[MUL]], 1
; CHECK-NEXT: [[TMP15:%.*]] = sub i64 0, [[MUL_RESULT]]
; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[SCEVGEP]], i64 [[MUL_RESULT]]
; CHECK-NEXT: [[TMP17:%.*]] = icmp ult ptr [[TMP16]], [[SCEVGEP]]
; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP17]], [[MUL_OVERFLOW]]
; CHECK-NEXT: [[TMP19:%.*]] = shl nsw i64 [[X_I64]], 3
; CHECK-NEXT: [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP19]]
; CHECK-NEXT: [[MUL2:%.*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 24, i64 [[TMP13]])
; CHECK-NEXT: [[MUL_RESULT3:%.*]] = extractvalue { i64, i1 } [[MUL2]], 0
; CHECK-NEXT: [[MUL_OVERFLOW4:%.*]] = extractvalue { i64, i1 } [[MUL2]], 1
; CHECK-NEXT: [[TMP20:%.*]] = sub i64 0, [[MUL_RESULT3]]
; CHECK-NEXT: [[TMP21:%.*]] = getelementptr i8, ptr [[SCEVGEP1]], i64 [[MUL_RESULT3]]
; CHECK-NEXT: [[TMP22:%.*]] = icmp ult ptr [[TMP21]], [[SCEVGEP1]]
; CHECK-NEXT: [[TMP23:%.*]] = or i1 [[TMP22]], [[MUL_OVERFLOW4]]
; CHECK-NEXT: [[TMP24:%.*]] = add nsw i64 [[TMP19]], -8
; CHECK-NEXT: [[SCEVGEP5:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP24]]
; CHECK-NEXT: [[MUL6:%.*]] = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 24, i64 [[TMP13]])
; CHECK-NEXT: [[MUL_RESULT7:%.*]] = extractvalue { i64, i1 } [[MUL6]], 0
; CHECK-NEXT: [[MUL_OVERFLOW8:%.*]] = extractvalue { i64, i1 } [[MUL6]], 1
; CHECK-NEXT: [[TMP25:%.*]] = sub i64 0, [[MUL_RESULT7]]
; CHECK-NEXT: [[TMP26:%.*]] = getelementptr i8, ptr [[SCEVGEP5]], i64 [[MUL_RESULT7]]
; CHECK-NEXT: [[TMP27:%.*]] = icmp ult ptr [[TMP26]], [[SCEVGEP5]]
; CHECK-NEXT: [[TMP28:%.*]] = or i1 [[TMP27]], [[MUL_OVERFLOW8]]
; CHECK-NEXT: [[TMP29:%.*]] = or i1 [[TMP18]], [[TMP23]]
; CHECK-NEXT: [[TMP30:%.*]] = or i1 [[TMP29]], [[TMP28]]
; CHECK-NEXT: br i1 [[TMP30]], label %[[SCALAR_PH]], label %[[VECTOR_MEMCHECK:.*]]
; CHECK: [[VECTOR_MEMCHECK]]:
; CHECK-NEXT: [[TMP31:%.*]] = shl nsw i64 [[X_I64]], 1
; CHECK-NEXT: [[SCEVGEP9:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP31]]
; CHECK-NEXT: [[SMAX10:%.*]] = call i64 @llvm.smax.i64(i64 [[X_I64]], i64 99)
; CHECK-NEXT: [[TMP32:%.*]] = sub i64 [[SMAX10]], [[X_I64]]
; CHECK-NEXT: [[UMIN11:%.*]] = call i64 @llvm.umin.i64(i64 [[TMP32]], i64 1)
; CHECK-NEXT: [[TMP33:%.*]] = sub i64 [[SMAX10]], [[UMIN11]]
; CHECK-NEXT: [[TMP34:%.*]] = sub i64 [[TMP33]], [[X_I64]]
; CHECK-NEXT: [[TMP35:%.*]] = udiv i64 [[TMP34]], 3
; CHECK-NEXT: [[TMP36:%.*]] = add i64 [[UMIN11]], [[TMP35]]
; CHECK-NEXT: [[TMP37:%.*]] = mul i64 [[TMP36]], 6
; CHECK-NEXT: [[TMP38:%.*]] = add i64 [[TMP37]], [[TMP31]]
; CHECK-NEXT: [[TMP39:%.*]] = add i64 [[TMP38]], 2
; CHECK-NEXT: [[SCEVGEP12:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP39]]
; CHECK-NEXT: [[TMP40:%.*]] = shl nsw i64 [[X_I64]], 3
; CHECK-NEXT: [[SCEVGEP13:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP40]]
; CHECK-NEXT: [[TMP41:%.*]] = mul i64 [[TMP36]], 24
; CHECK-NEXT: [[TMP42:%.*]] = add i64 [[TMP41]], [[TMP40]]
; CHECK-NEXT: [[TMP43:%.*]] = add i64 [[TMP42]], 8
; CHECK-NEXT: [[SCEVGEP14:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP43]]
; CHECK-NEXT: [[TMP44:%.*]] = add nsw i64 [[TMP40]], -8
; CHECK-NEXT: [[SCEVGEP15:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP44]]
; CHECK-NEXT: [[SCEVGEP16:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP42]]
; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[SCEVGEP9]], [[SCEVGEP14]]
; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[SCEVGEP13]], [[SCEVGEP12]]
; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
; CHECK-NEXT: [[BOUND017:%.*]] = icmp ult ptr [[SCEVGEP9]], [[SCEVGEP16]]
; CHECK-NEXT: [[BOUND118:%.*]] = icmp ult ptr [[SCEVGEP15]], [[SCEVGEP12]]
; CHECK-NEXT: [[FOUND_CONFLICT19:%.*]] = and i1 [[BOUND017]], [[BOUND118]]
; CHECK-NEXT: [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT19]]
; CHECK-NEXT: br i1 [[CONFLICT_RDX]], label %[[SCALAR_PH]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[TMP45:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP46:%.*]] = mul i64 [[TMP45]], 8
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP5]], [[TMP46]]
; CHECK-NEXT: [[TMP47:%.*]] = icmp eq i64 [[N_MOD_VF]], 0
; CHECK-NEXT: [[TMP48:%.*]] = select i1 [[TMP47]], i64 [[TMP46]], i64 [[N_MOD_VF]]
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP5]], [[TMP48]]
; CHECK-NEXT: [[TMP49:%.*]] = mul i64 [[N_VEC]], 3
; CHECK-NEXT: [[IND_END:%.*]] = add i64 [[X_I64]], [[TMP49]]
; CHECK-NEXT: [[DOTCAST:%.*]] = trunc i64 [[N_VEC]] to i32
; CHECK-NEXT: [[TMP50:%.*]] = mul i32 [[DOTCAST]], 3
; CHECK-NEXT: [[IND_END22:%.*]] = add i32 [[X_I32]], [[TMP50]]
; CHECK-NEXT: [[TMP51:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP52:%.*]] = mul i64 [[TMP51]], 8
; CHECK-NEXT: [[DOTSPLATINSERT:%.*]] = insertelement <vscale x 8 x i64> poison, i64 [[X_I64]], i64 0
; CHECK-NEXT: [[DOTSPLAT:%.*]] = shufflevector <vscale x 8 x i64> [[DOTSPLATINSERT]], <vscale x 8 x i64> poison, <vscale x 8 x i32> zeroinitializer
; CHECK-NEXT: [[TMP53:%.*]] = call <vscale x 8 x i64> @llvm.stepvector.nxv8i64()
; CHECK-NEXT: [[TMP54:%.*]] = add <vscale x 8 x i64> [[TMP53]], zeroinitializer
; CHECK-NEXT: [[TMP55:%.*]] = mul <vscale x 8 x i64> [[TMP54]], shufflevector (<vscale x 8 x i64> insertelement (<vscale x 8 x i64> poison, i64 3, i64 0), <vscale x 8 x i64> poison, <vscale x 8 x i32> zeroinitializer)
; CHECK-NEXT: [[INDUCTION:%.*]] = add <vscale x 8 x i64> [[DOTSPLAT]], [[TMP55]]
; CHECK-NEXT: [[TMP58:%.*]] = mul i64 3, [[TMP52]]
; CHECK-NEXT: [[DOTSPLATINSERT24:%.*]] = insertelement <vscale x 8 x i64> poison, i64 [[TMP58]], i64 0
; CHECK-NEXT: [[DOTSPLAT25:%.*]] = shufflevector <vscale x 8 x i64> [[DOTSPLATINSERT24]], <vscale x 8 x i64> poison, <vscale x 8 x i32> zeroinitializer
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_IND:%.*]] = phi <vscale x 8 x i64> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP59:%.*]] = getelementptr i16, ptr [[A]], <vscale x 8 x i64> [[VEC_IND]]
; CHECK-NEXT: call void @llvm.masked.scatter.nxv8i16.nxv8p0(<vscale x 8 x i16> zeroinitializer, <vscale x 8 x ptr> [[TMP59]], i32 2, <vscale x 8 x i1> shufflevector (<vscale x 8 x i1> insertelement (<vscale x 8 x i1> poison, i1 true, i64 0), <vscale x 8 x i1> poison, <vscale x 8 x i32> zeroinitializer)), !alias.scope [[META0:![0-9]+]], !noalias [[META3:![0-9]+]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP52]]
; CHECK-NEXT: [[VEC_IND_NEXT]] = add <vscale x 8 x i64> [[VEC_IND]], [[DOTSPLAT25]]
; CHECK-NEXT: [[TMP60:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP60]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: br label %[[SCALAR_PH]]
; CHECK: [[SCALAR_PH]]:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[IND_END]], %[[MIDDLE_BLOCK]] ], [ [[X_I64]], %[[ENTRY]] ], [ [[X_I64]], %[[VECTOR_SCEVCHECK]] ], [ [[X_I64]], %[[VECTOR_MEMCHECK]] ]
; CHECK-NEXT: [[BC_RESUME_VAL23:%.*]] = phi i32 [ [[IND_END22]], %[[MIDDLE_BLOCK]] ], [ [[X_I32]], %[[ENTRY]] ], [ [[X_I32]], %[[VECTOR_SCEVCHECK]] ], [ [[X_I32]], %[[VECTOR_MEMCHECK]] ]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[IV_CONV:%.*]] = phi i32 [ [[BC_RESUME_VAL23]], %[[SCALAR_PH]] ], [ [[TMP64:%.*]], %[[LOOP]] ]
; CHECK-NEXT: [[GEP_I64:%.*]] = getelementptr i64, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: [[TMP61:%.*]] = load i64, ptr [[GEP_I64]], align 8
; CHECK-NEXT: [[TMP62:%.*]] = sext i32 [[IV_CONV]] to i64
; CHECK-NEXT: [[GEP_CONV:%.*]] = getelementptr i64, ptr [[INVARIANT_GEP]], i64 [[TMP62]]
; CHECK-NEXT: [[TMP63:%.*]] = load i64, ptr [[GEP_CONV]], align 8
; CHECK-NEXT: [[GEP_I16:%.*]] = getelementptr i16, ptr [[A]], i64 [[IV]]
; CHECK-NEXT: store i16 0, ptr [[GEP_I16]], align 2
; CHECK-NEXT: [[IV_NEXT]] = add i64 [[IV]], 3
; CHECK-NEXT: [[TMP64]] = trunc i64 [[IV_NEXT]] to i32
; CHECK-NEXT: [[C:%.*]] = icmp slt i64 [[IV]], 99
; CHECK-NEXT: br i1 [[C]], label %[[LOOP]], label %[[EXIT:.*]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: ret void
;
entry:
%x.i32 = sext i16 %x to i32
%x.i64 = sext i16 %x to i64
%invariant.gep = getelementptr i8, ptr %A, i64 -8
br label %loop
loop:
%iv = phi i64 [ %x.i64, %entry ], [ %iv.next, %loop ]
%iv.conv = phi i32 [ %x.i32, %entry ], [ %5, %loop ]
%gep.i64 = getelementptr i64, ptr %A, i64 %iv
%2 = load i64, ptr %gep.i64, align 8
%3 = sext i32 %iv.conv to i64
%gep.conv = getelementptr i64, ptr %invariant.gep, i64 %3
%4 = load i64, ptr %gep.conv, align 8
%gep.i16 = getelementptr i16, ptr %A, i64 %iv
store i16 0, ptr %gep.i16, align 2
%iv.next = add i64 %iv, 3
%5 = trunc i64 %iv.next to i32
%c = icmp slt i64 %iv, 99
br i1 %c, label %loop, label %exit
exit:
ret void
}
attributes #0 = { "target-features"="+64bit,+v,+zvl256b" }
;.
; CHECK: [[META0]] = !{[[META1:![0-9]+]]}
; CHECK: [[META1]] = distinct !{[[META1]], [[META2:![0-9]+]]}
; CHECK: [[META2]] = distinct !{[[META2]], !"LVerDomain"}
; CHECK: [[META3]] = !{[[META4:![0-9]+]], [[META5:![0-9]+]]}
; CHECK: [[META4]] = distinct !{[[META4]], [[META2]]}
; CHECK: [[META5]] = distinct !{[[META5]], [[META2]]}
; CHECK: [[LOOP6]] = distinct !{[[LOOP6]], [[META7:![0-9]+]], [[META8:![0-9]+]]}
; CHECK: [[META7]] = !{!"llvm.loop.isvectorized", i32 1}
; CHECK: [[META8]] = !{!"llvm.loop.unroll.runtime.disable"}
; CHECK: [[LOOP9]] = distinct !{[[LOOP9]], [[META7]]}
;.
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