Skip to content

[ValueTracking] Handle recursive phis in knownFPClass #114008

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Nov 1, 2024
Merged

[ValueTracking] Handle recursive phis in knownFPClass #114008

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 15 additions & 4 deletions llvm/lib/Analysis/ValueTracking.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6003,21 +6003,32 @@ void computeKnownFPClass(const Value *V, const APInt &DemandedElts,
if (IncValue == P)
continue;

Instruction *CxtI = P->getIncomingBlock(U)->getTerminator();

// If the Use is a select of this phi, use the fp class of the other
// operand to break the recursion.
// operand to break the recursion. Same around 2-operand phi nodes
Value *V;
if (match(IncValue, m_Select(m_Value(), m_Specific(P), m_Value(V))) ||
match(IncValue, m_Select(m_Value(), m_Value(V), m_Specific(P))))
match(IncValue, m_Select(m_Value(), m_Value(V), m_Specific(P)))) {
IncValue = V;
} else if (auto *IncPhi = dyn_cast<PHINode>(IncValue);
IncPhi && IncPhi->getNumIncomingValues() == 2) {
for (int Idx = 0; Idx < 2; ++Idx) {
if (IncPhi->getIncomingValue(Idx) == P) {
IncValue = IncPhi->getIncomingValue(1 - Idx);
CxtI = IncPhi->getIncomingBlock(1 - Idx)->getTerminator();
break;
}
}
}

KnownFPClass KnownSrc;
// Recurse, but cap the recursion to two levels, because we don't want
// to waste time spinning around in loops. We need at least depth 2 to
// detect known sign bits.
computeKnownFPClass(IncValue, DemandedElts, InterestedClasses, KnownSrc,
PhiRecursionLimit,
Q.getWithoutCondContext().getWithInstruction(
P->getIncomingBlock(U)->getTerminator()));
Q.getWithoutCondContext().getWithInstruction(CxtI));

if (First) {
Known = KnownSrc;
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/Attributor/nofpclass-phiselect.ll
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -98,7 +98,7 @@ exit:
}

define float @phi_phi(i1 %c, float nofpclass(inf) %base, float nofpclass(inf) %arg) {
; CHECK-LABEL: define float @phi_phi
; CHECK-LABEL: define nofpclass(inf) float @phi_phi
; CHECK-SAME: (i1 [[C:%.*]], float nofpclass(inf) [[BASE:%.*]], float nofpclass(inf) [[ARG:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
Expand Down
1 change: 0 additions & 1 deletion llvm/test/Transforms/EarlyCSE/nofpclass-phi-regression.ll
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,6 @@ define void @compute_known_fpclass_phi_assert(i1 %cmp46, i1 %tobool51, ptr %a01)
; CHECK-NEXT: [[TMP1]] = phi double [ 0.000000e+00, [[IF_THEN52]] ], [ [[TMP0]], [[FOR_BODY48]] ]
; CHECK-NEXT: br label [[FOR_COND45]]
; CHECK: for.end82:
; CHECK-NEXT: [[MUL84:%.*]] = fmul double [[TMP0]], 0.000000e+00
; CHECK-NEXT: ret void
;
entry:
Expand Down
103 changes: 81 additions & 22 deletions llvm/test/Transforms/PhaseOrdering/AArch64/predicated-reduction.ll
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,14 +22,14 @@ define nofpclass(nan inf) double @monte_simple(i32 noundef %nblocks, i32 noundef
; CHECK-NEXT: [[BROADCAST_SPLAT20:%.*]] = shufflevector <2 x double> [[BROADCAST_SPLATINSERT19]], <2 x double> poison, <2 x i32> zeroinitializer
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[INDVARS_IV1:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <2 x double> [ <double 0.000000e+00, double -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI15:%.*]] = phi <2 x double> [ <double -0.000000e+00, double -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI16:%.*]] = phi <2 x double> [ <double 0.000000e+00, double -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP14:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI17:%.*]] = phi <2 x double> [ <double -0.000000e+00, double -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP15:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[SAMPLES]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[ARRAYIDX]], i64 8
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x float>, ptr [[ARRAYIDX]], align 4
; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds float, ptr [[SAMPLES]], i64 [[INDVARS_IV1]]
; CHECK-NEXT: [[TMP23:%.*]] = getelementptr inbounds i8, ptr [[ARRAYIDX1]], i64 8
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x float>, ptr [[ARRAYIDX1]], align 4
; CHECK-NEXT: [[WIDE_LOAD18:%.*]] = load <2 x float>, ptr [[TMP23]], align 4
; CHECK-NEXT: [[TMP2:%.*]] = fpext <2 x float> [[WIDE_LOAD]] to <2 x double>
; CHECK-NEXT: [[TMP3:%.*]] = fpext <2 x float> [[WIDE_LOAD18]] to <2 x double>
Expand All @@ -49,7 +49,7 @@ define nofpclass(nan inf) double @monte_simple(i32 noundef %nblocks, i32 noundef
; CHECK-NEXT: [[TMP17:%.*]] = select <2 x i1> [[TMP9]], <2 x double> [[TMP11]], <2 x double> <double -0.000000e+00, double -0.000000e+00>
; CHECK-NEXT: [[TMP18]] = fadd reassoc arcp contract afn <2 x double> [[VEC_PHI]], [[TMP16]]
; CHECK-NEXT: [[TMP19]] = fadd reassoc arcp contract afn <2 x double> [[VEC_PHI15]], [[TMP17]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDVARS_IV]], 4
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDVARS_IV1]], 4
; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
Expand All @@ -65,11 +65,11 @@ define nofpclass(nan inf) double @monte_simple(i32 noundef %nblocks, i32 noundef
; CHECK-NEXT: [[V0_011_PH:%.*]] = phi double [ 0.000000e+00, %[[FOR_BODY_PREHEADER]] ], [ [[TMP22]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: br label %[[FOR_BODY:.*]]
; CHECK: [[FOR_BODY]]:
; CHECK-NEXT: [[INDVARS_IV1:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], %[[FOR_BODY]] ], [ [[INDVARS_IV_PH]], %[[FOR_BODY_PREHEADER23]] ]
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], %[[FOR_BODY]] ], [ [[INDVARS_IV_PH]], %[[FOR_BODY_PREHEADER23]] ]
; CHECK-NEXT: [[V1_012:%.*]] = phi double [ [[V1_2:%.*]], %[[FOR_BODY]] ], [ [[V1_012_PH]], %[[FOR_BODY_PREHEADER23]] ]
; CHECK-NEXT: [[V0_011:%.*]] = phi double [ [[V0_2:%.*]], %[[FOR_BODY]] ], [ [[V0_011_PH]], %[[FOR_BODY_PREHEADER23]] ]
; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds float, ptr [[SAMPLES]], i64 [[INDVARS_IV1]]
; CHECK-NEXT: [[TMP0:%.*]] = load float, ptr [[ARRAYIDX1]], align 4
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[SAMPLES]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP0:%.*]] = load float, ptr [[ARRAYIDX]], align 4
; CHECK-NEXT: [[CONV:%.*]] = fpext float [[TMP0]] to double
; CHECK-NEXT: [[MUL:%.*]] = fmul fast double [[Y]], [[CONV]]
; CHECK-NEXT: [[SUB:%.*]] = fsub fast double [[MUL]], [[Z]]
Expand All @@ -79,7 +79,7 @@ define nofpclass(nan inf) double @monte_simple(i32 noundef %nblocks, i32 noundef
; CHECK-NEXT: [[V0_2]] = fadd reassoc arcp contract afn double [[V0_011]], [[ADD8]]
; CHECK-NEXT: [[ADD4:%.*]] = select i1 [[CMP1]], double [[MUL3]], double -0.000000e+00
; CHECK-NEXT: [[V1_2]] = fadd reassoc arcp contract afn double [[V1_012]], [[ADD4]]
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV1]], 1
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_END_LOOPEXIT]], label %[[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK: [[FOR_END_LOOPEXIT]]:
Expand Down Expand Up @@ -189,33 +189,90 @@ define nofpclass(nan inf) double @monte_exp(i32 noundef %nblocks, i32 noundef %R
; CHECK-NEXT: br i1 [[CMP211]], label %[[FOR_BODY_US_PREHEADER:.*]], label %[[FOR_BODY:.*]]
; CHECK: [[FOR_BODY_US_PREHEADER]]:
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext nneg i32 [[RAND_BLOCK_LENGTH]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[RAND_BLOCK_LENGTH]], 4
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[WIDE_TRIP_COUNT]], 2147483644
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x double> poison, double [[Y]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x double> [[BROADCAST_SPLATINSERT]], <2 x double> poison, <2 x i32> zeroinitializer
; CHECK-NEXT: [[BROADCAST_SPLATINSERT35:%.*]] = insertelement <2 x double> poison, double [[Z]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT36:%.*]] = shufflevector <2 x double> [[BROADCAST_SPLATINSERT35]], <2 x double> poison, <2 x i32> zeroinitializer
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N_VEC]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: br label %[[FOR_BODY_US:.*]]
; CHECK: [[FOR_BODY_US]]:
; CHECK-NEXT: [[V1_019_US:%.*]] = phi double [ [[V1_2_US:%.*]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US:.*]] ], [ 0.000000e+00, %[[FOR_BODY_US_PREHEADER]] ]
; CHECK-NEXT: [[V0_018_US:%.*]] = phi double [ [[V0_2_US:%.*]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]] ], [ 0.000000e+00, %[[FOR_BODY_US_PREHEADER]] ]
; CHECK-NEXT: [[V1_021_US:%.*]] = phi double [ [[V1_2_US_LCSSA:%.*]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US:.*]] ], [ 0.000000e+00, %[[FOR_BODY_US_PREHEADER]] ]
; CHECK-NEXT: [[V0_020_US:%.*]] = phi double [ [[V0_2_US_LCSSA:%.*]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]] ], [ 0.000000e+00, %[[FOR_BODY_US_PREHEADER]] ]
; CHECK-NEXT: [[BLOCK_017_US:%.*]] = phi i32 [ [[INC9_US:%.*]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]] ], [ 0, %[[FOR_BODY_US_PREHEADER]] ]
; CHECK-NEXT: tail call void @resample(i32 noundef [[RAND_BLOCK_LENGTH]], ptr noundef [[SAMPLES]])
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[FOR_BODY3_US_PREHEADER:.*]], label %[[VECTOR_PH:.*]]
; CHECK: [[VECTOR_PH]]:
; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x double> <double poison, double -0.000000e+00>, double [[V1_021_US]], i64 0
; CHECK-NEXT: [[TMP27:%.*]] = insertelement <2 x double> <double poison, double -0.000000e+00>, double [[V0_020_US]], i64 0
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
; CHECK: [[VECTOR_BODY]]:
; CHECK-NEXT: [[INDVARS_IV1:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <2 x double> [ [[TMP2]], %[[VECTOR_PH]] ], [ [[TMP22:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI31:%.*]] = phi <2 x double> [ <double -0.000000e+00, double -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP23:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI32:%.*]] = phi <2 x double> [ [[TMP27]], %[[VECTOR_PH]] ], [ [[TMP18:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI33:%.*]] = phi <2 x double> [ <double -0.000000e+00, double -0.000000e+00>, %[[VECTOR_PH]] ], [ [[TMP19:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT: [[ARRAYIDX_US1:%.*]] = getelementptr inbounds float, ptr [[SAMPLES]], i64 [[INDVARS_IV1]]
; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, ptr [[ARRAYIDX_US1]], i64 8
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x float>, ptr [[ARRAYIDX_US1]], align 4
; CHECK-NEXT: [[WIDE_LOAD34:%.*]] = load <2 x float>, ptr [[TMP3]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = fpext <2 x float> [[WIDE_LOAD]] to <2 x double>
; CHECK-NEXT: [[TMP5:%.*]] = fpext <2 x float> [[WIDE_LOAD34]] to <2 x double>
; CHECK-NEXT: [[TMP6:%.*]] = tail call fast <2 x double> @llvm.exp2.v2f64(<2 x double> [[TMP4]])
; CHECK-NEXT: [[TMP7:%.*]] = tail call fast <2 x double> @llvm.exp2.v2f64(<2 x double> [[TMP5]])
; CHECK-NEXT: [[TMP8:%.*]] = fmul fast <2 x double> [[TMP6]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: [[TMP9:%.*]] = fmul fast <2 x double> [[TMP7]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: [[TMP10:%.*]] = fsub fast <2 x double> [[TMP8]], [[BROADCAST_SPLAT36]]
; CHECK-NEXT: [[TMP11:%.*]] = fsub fast <2 x double> [[TMP9]], [[BROADCAST_SPLAT36]]
; CHECK-NEXT: [[TMP12:%.*]] = fcmp fast ogt <2 x double> [[TMP10]], zeroinitializer
; CHECK-NEXT: [[TMP13:%.*]] = fcmp fast ogt <2 x double> [[TMP11]], zeroinitializer
; CHECK-NEXT: [[TMP14:%.*]] = fmul fast <2 x double> [[TMP10]], [[TMP10]]
; CHECK-NEXT: [[TMP15:%.*]] = fmul fast <2 x double> [[TMP11]], [[TMP11]]
; CHECK-NEXT: [[TMP16:%.*]] = tail call fast <2 x double> @llvm.maxnum.v2f64(<2 x double> [[TMP10]], <2 x double> <double -0.000000e+00, double -0.000000e+00>)
; CHECK-NEXT: [[TMP17:%.*]] = tail call fast <2 x double> @llvm.maxnum.v2f64(<2 x double> [[TMP11]], <2 x double> <double -0.000000e+00, double -0.000000e+00>)
; CHECK-NEXT: [[TMP18]] = fadd reassoc arcp contract afn <2 x double> [[VEC_PHI32]], [[TMP16]]
; CHECK-NEXT: [[TMP19]] = fadd reassoc arcp contract afn <2 x double> [[VEC_PHI33]], [[TMP17]]
; CHECK-NEXT: [[TMP20:%.*]] = select <2 x i1> [[TMP12]], <2 x double> [[TMP14]], <2 x double> <double -0.000000e+00, double -0.000000e+00>
; CHECK-NEXT: [[TMP21:%.*]] = select <2 x i1> [[TMP13]], <2 x double> [[TMP15]], <2 x double> <double -0.000000e+00, double -0.000000e+00>
; CHECK-NEXT: [[TMP22]] = fadd reassoc arcp contract afn <2 x double> [[VEC_PHI]], [[TMP20]]
; CHECK-NEXT: [[TMP23]] = fadd reassoc arcp contract afn <2 x double> [[VEC_PHI31]], [[TMP21]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDVARS_IV1]], 4
; CHECK-NEXT: [[TMP24:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP24]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK: [[MIDDLE_BLOCK]]:
; CHECK-NEXT: [[BIN_RDX:%.*]] = fadd reassoc arcp contract afn <2 x double> [[TMP23]], [[TMP22]]
; CHECK-NEXT: [[TMP25:%.*]] = tail call reassoc arcp contract afn double @llvm.vector.reduce.fadd.v2f64(double -0.000000e+00, <2 x double> [[BIN_RDX]])
; CHECK-NEXT: [[BIN_RDX37:%.*]] = fadd reassoc arcp contract afn <2 x double> [[TMP19]], [[TMP18]]
; CHECK-NEXT: [[TMP26:%.*]] = tail call reassoc arcp contract afn double @llvm.vector.reduce.fadd.v2f64(double -0.000000e+00, <2 x double> [[BIN_RDX37]])
; CHECK-NEXT: br i1 [[CMP_N]], label %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]], label %[[FOR_BODY3_US_PREHEADER]]
; CHECK: [[FOR_BODY3_US_PREHEADER]]:
; CHECK-NEXT: [[INDVARS_IV_PH:%.*]] = phi i64 [ 0, %[[FOR_BODY_US]] ], [ [[N_VEC]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: [[V1_116_US_PH:%.*]] = phi double [ [[V1_021_US]], %[[FOR_BODY_US]] ], [ [[TMP25]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: [[V0_115_US_PH:%.*]] = phi double [ [[V0_020_US]], %[[FOR_BODY_US]] ], [ [[TMP26]], %[[MIDDLE_BLOCK]] ]
; CHECK-NEXT: br label %[[FOR_BODY3_US:.*]]
; CHECK: [[FOR_BODY3_US]]:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, %[[FOR_BODY_US]] ], [ [[INDVARS_IV_NEXT:%.*]], %[[FOR_BODY3_US]] ]
; CHECK-NEXT: [[V1_114_US:%.*]] = phi double [ [[V1_019_US]], %[[FOR_BODY_US]] ], [ [[V1_2_US]], %[[FOR_BODY3_US]] ]
; CHECK-NEXT: [[V0_113_US:%.*]] = phi double [ [[V0_018_US]], %[[FOR_BODY_US]] ], [ [[V0_2_US]], %[[FOR_BODY3_US]] ]
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], %[[FOR_BODY3_US]] ], [ [[INDVARS_IV_PH]], %[[FOR_BODY3_US_PREHEADER]] ]
; CHECK-NEXT: [[V1_116_US:%.*]] = phi double [ [[V1_2_US:%.*]], %[[FOR_BODY3_US]] ], [ [[V1_116_US_PH]], %[[FOR_BODY3_US_PREHEADER]] ]
; CHECK-NEXT: [[V0_115_US:%.*]] = phi double [ [[V0_2_US:%.*]], %[[FOR_BODY3_US]] ], [ [[V0_115_US_PH]], %[[FOR_BODY3_US_PREHEADER]] ]
; CHECK-NEXT: [[ARRAYIDX_US:%.*]] = getelementptr inbounds float, ptr [[SAMPLES]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP0:%.*]] = load float, ptr [[ARRAYIDX_US]], align 4
; CHECK-NEXT: [[CONV_US:%.*]] = fpext float [[TMP0]] to double
; CHECK-NEXT: [[TMP1:%.*]] = tail call fast double @llvm.exp2.f64(double [[CONV_US]])
; CHECK-NEXT: [[MUL_US:%.*]] = fmul fast double [[TMP1]], [[Y]]
; CHECK-NEXT: [[SUB_US:%.*]] = fsub fast double [[MUL_US]], [[Z]]
; CHECK-NEXT: [[CMP4_US:%.*]] = fcmp fast ogt double [[SUB_US]], 0.000000e+00
; CHECK-NEXT: [[ADD_US:%.*]] = fadd fast double [[SUB_US]], [[V0_113_US]]
; CHECK-NEXT: [[MUL6_US:%.*]] = fmul fast double [[SUB_US]], [[SUB_US]]
; CHECK-NEXT: [[ADD7_US:%.*]] = fadd fast double [[MUL6_US]], [[V1_114_US]]
; CHECK-NEXT: [[V0_2_US]] = select i1 [[CMP4_US]], double [[ADD_US]], double [[V0_113_US]]
; CHECK-NEXT: [[V1_2_US]] = select i1 [[CMP4_US]], double [[ADD7_US]], double [[V1_114_US]]
; CHECK-NEXT: [[ADD7_US:%.*]] = fmul fast double [[SUB_US]], [[SUB_US]]
; CHECK-NEXT: [[ADD12_US:%.*]] = tail call fast double @llvm.maxnum.f64(double [[SUB_US]], double -0.000000e+00)
; CHECK-NEXT: [[V0_2_US]] = fadd reassoc arcp contract afn double [[V0_115_US]], [[ADD12_US]]
; CHECK-NEXT: [[ADD7_US1:%.*]] = select i1 [[CMP4_US]], double [[ADD7_US]], double -0.000000e+00
; CHECK-NEXT: [[V1_2_US]] = fadd reassoc arcp contract afn double [[V1_116_US]], [[ADD7_US1]]
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[EXITCOND25_NOT:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT: br i1 [[EXITCOND25_NOT]], label %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]], label %[[FOR_BODY3_US]]
; CHECK-NEXT: br i1 [[EXITCOND25_NOT]], label %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]], label %[[FOR_BODY3_US]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK: [[FOR_COND1_FOR_INC8_CRIT_EDGE_US]]:
; CHECK-NEXT: [[V0_2_US_LCSSA]] = phi double [ [[TMP26]], %[[MIDDLE_BLOCK]] ], [ [[V0_2_US]], %[[FOR_BODY3_US]] ]
; CHECK-NEXT: [[V1_2_US_LCSSA]] = phi double [ [[TMP25]], %[[MIDDLE_BLOCK]] ], [ [[V1_2_US]], %[[FOR_BODY3_US]] ]
; CHECK-NEXT: [[INC9_US]] = add nuw nsw i32 [[BLOCK_017_US]], 1
; CHECK-NEXT: [[EXITCOND26_NOT:%.*]] = icmp eq i32 [[INC9_US]], [[NBLOCKS]]
; CHECK-NEXT: br i1 [[EXITCOND26_NOT]], label %[[FOR_END10]], label %[[FOR_BODY_US]]
Expand All @@ -226,8 +283,8 @@ define nofpclass(nan inf) double @monte_exp(i32 noundef %nblocks, i32 noundef %R
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[INC9]], [[NBLOCKS]]
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label %[[FOR_END10]], label %[[FOR_BODY]]
; CHECK: [[FOR_END10]]:
; CHECK-NEXT: [[V0_0_LCSSA:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[V0_2_US]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]] ], [ 0.000000e+00, %[[FOR_BODY]] ]
; CHECK-NEXT: [[V1_0_LCSSA:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[V1_2_US]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]] ], [ 0.000000e+00, %[[FOR_BODY]] ]
; CHECK-NEXT: [[V0_0_LCSSA:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[V0_2_US_LCSSA]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]] ], [ 0.000000e+00, %[[FOR_BODY]] ]
; CHECK-NEXT: [[V1_0_LCSSA:%.*]] = phi double [ 0.000000e+00, %[[ENTRY]] ], [ [[V1_2_US_LCSSA]], %[[FOR_COND1_FOR_INC8_CRIT_EDGE_US]] ], [ 0.000000e+00, %[[FOR_BODY]] ]
; CHECK-NEXT: [[ADD11:%.*]] = fadd fast double [[V1_0_LCSSA]], [[V0_0_LCSSA]]
; CHECK-NEXT: ret double [[ADD11]]
;
Expand Down Expand Up @@ -350,4 +407,6 @@ declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]}
; CHECK: [[LOOP4]] = distinct !{[[LOOP4]], [[META1]], [[META2]]}
; CHECK: [[LOOP5]] = distinct !{[[LOOP5]], [[META2]], [[META1]]}
;.
Loading