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llvm-project/llvm/test/Transforms/LoopVectorize/RISCV/select-cmp-reduction.ll
Florian Hahn 99d6c6d936
[VPlan] Model branch cond to enter scalar epilogue in VPlan. (#92651) 
This patch moves branch condition creation to enter the scalar epilogue
loop to VPlan. Modeling the branch in the middle block also requires
modeling the successor blocks. This is done using the recently
introduced VPIRBasicBlock.

Note that the middle.block is still created as part of the skeleton and
then patched in during VPlan execution. Unfortunately the skeleton needs
to create the middle.block early on, as it is also used for induction
resume value creation and is also needed to properly update the
dominator tree during skeleton creation.

After this patch lands, I plan to move induction resume value and phi
node creation in the scalar preheader to VPlan. Once that is done, we
should be able to create the middle.block in VPlan directly.

This is a re-worked version based on the earlier
https://reviews.llvm.org/D150398 and the main change is the use of
VPIRBasicBlock.

Depends on https://github.com/llvm/llvm-project/pull/92525

PR: https://github.com/llvm/llvm-project/pull/92651
2024-07-05 10:08:42 +01:00

487 lines
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; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S \
; RUN: < %s | FileCheck %s
; RUN: opt -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 \
; RUN: -scalable-vectorization=on -S < %s | FileCheck %s -check-prefix=SCALABLE
target triple = "riscv64"
define i32 @select_icmp(i32 %x, i32 %y, ptr nocapture readonly %c, i64 %n) #0 {
; CHECK-LABEL: @select_icmp
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x i32> poison, i32 [[X:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i32> [[BROADCAST_SPLATINSERT]], <4 x i32> poison, <4 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_PHI:%.*]] = phi <4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[C:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[TMP1]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP2]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = icmp slt <4 x i32> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: [[NOT:%.*]] = xor <4 x i1> [[TMP4]], <i1 true, i1 true, i1 true, i1 true>
; CHECK-NEXT: [[TMP5]] = or <4 x i1> [[VEC_PHI]], [[NOT]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[TMP7:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP5]])
; CHECK-NEXT: [[FR:%.*]] = freeze i1 [[TMP7]]
; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 %y, i32 0
; CHECK-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
; SCALABLE-LABEL: @select_icmp
; SCALABLE: vector.ph:
; SCALABLE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
; SCALABLE-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, [[TMP3]]
; SCALABLE-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; SCALABLE-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP11:%.*]] = mul i64 [[TMP10]], 4
; SCALABLE-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 4 x i32> poison, i32 [[X:%.*]], i64 0
; SCALABLE-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x i32> [[BROADCAST_SPLATINSERT]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
; SCALABLE-NEXT: br label [[VECTOR_BODY:%.*]]
; SCALABLE: vector.body:
; SCALABLE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP9:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; SCALABLE-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, ptr [[C:%.*]], i64 [[TMP4]]
; SCALABLE-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, ptr [[TMP5]], i32 0
; SCALABLE-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x i32>, ptr [[TMP6]], align 4
; SCALABLE-NEXT: [[TMP8:%.*]] = icmp slt <vscale x 4 x i32> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; SCALABLE-NEXT: [[NOT:%.*]] = xor <vscale x 4 x i1> [[TMP8]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[TMP9]] = or <vscale x 4 x i1> [[VEC_PHI]], [[NOT]]
; SCALABLE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP11]]
; SCALABLE-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; SCALABLE-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; SCALABLE: middle.block:
; SCALABLE-NEXT: [[TMP13:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[TMP9]])
; SCALABLE-NEXT: [[FR:%.*]] = freeze i1 [[TMP13]]
; SCALABLE-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 %y, i32 0
; SCALABLE-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%a = phi i32 [ 0, %entry], [ %cond, %for.body ]
%arrayidx = getelementptr inbounds i32, ptr %c, i64 %indvars.iv
%0 = load i32, ptr %arrayidx, align 4
%cmp1 = icmp slt i32 %0, %x
%cond = select i1 %cmp1, i32 %a, i32 %y
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond.not = icmp eq i64 %indvars.iv.next, %n
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret i32 %cond
}
define i32 @select_fcmp(float %x, i32 %y, ptr nocapture readonly %c, i64 %n) #0 {
; CHECK-LABEL: @select_fcmp
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <4 x float> poison, float [[X:%.*]], i64 0
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT]], <4 x float> poison, <4 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_PHI:%.*]] = phi <4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds float, ptr [[C:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP2]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = fcmp fast olt <4 x float> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; CHECK-NEXT: [[NOT:%.*]] = xor <4 x i1> [[TMP4]], <i1 true, i1 true, i1 true, i1 true>
; CHECK-NEXT: [[TMP5]] = or <4 x i1> [[VEC_PHI]], [[NOT]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[TMP7:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP5]])
; CHECK-NEXT: [[FR:%.*]] = freeze i1 [[TMP7]]
; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 %y, i32 0
; CHECK-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
; SCALABLE-LABEL: @select_fcmp
; SCALABLE: vector.ph:
; SCALABLE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
; SCALABLE-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, [[TMP3]]
; SCALABLE-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; SCALABLE-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP11:%.*]] = mul i64 [[TMP10]], 4
; SCALABLE-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 4 x float> poison, float [[X:%.*]], i64 0
; SCALABLE-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x float> [[BROADCAST_SPLATINSERT]], <vscale x 4 x float> poison, <vscale x 4 x i32> zeroinitializer
; SCALABLE-NEXT: br label [[VECTOR_BODY:%.*]]
; SCALABLE: vector.body:
; SCALABLE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP9:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; SCALABLE-NEXT: [[TMP5:%.*]] = getelementptr inbounds float, ptr [[C:%.*]], i64 [[TMP4]]
; SCALABLE-NEXT: [[TMP6:%.*]] = getelementptr inbounds float, ptr [[TMP5]], i32 0
; SCALABLE-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x float>, ptr [[TMP6]], align 4
; SCALABLE-NEXT: [[TMP8:%.*]] = fcmp fast olt <vscale x 4 x float> [[WIDE_LOAD]], [[BROADCAST_SPLAT]]
; SCALABLE-NEXT: [[NOT:%.*]] = xor <vscale x 4 x i1> [[TMP8]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[TMP9]] = or <vscale x 4 x i1> [[VEC_PHI]], [[NOT]]
; SCALABLE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP11]]
; SCALABLE-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; SCALABLE-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; SCALABLE: middle.block:
; SCALABLE-NEXT: [[TMP13:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[TMP9]])
; SCALABLE-NEXT: [[FR:%.*]] = freeze i1 [[TMP13]]
; SCALABLE-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 %y, i32 0
; SCALABLE-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%a = phi i32 [ 0, %entry], [ %cond, %for.body ]
%arrayidx = getelementptr inbounds float, ptr %c, i64 %indvars.iv
%0 = load float, ptr %arrayidx, align 4
%cmp1 = fcmp fast olt float %0, %x
%cond = select i1 %cmp1, i32 %a, i32 %y
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond.not = icmp eq i64 %indvars.iv.next, %n
br i1 %exitcond.not, label %for.end, label %for.body
for.end:
ret i32 %cond
}
define i32 @select_const_i32_from_icmp(ptr nocapture readonly %v, i64 %n) #0 {
; CHECK-LABEL: @select_const_i32_from_icmp
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[V:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[TMP1]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP2]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = icmp eq <4 x i32> [[WIDE_LOAD]], <i32 3, i32 3, i32 3, i32 3>
; CHECK-NEXT: [[NOT:%.*]] = xor <4 x i1> [[TMP4]], <i1 true, i1 true, i1 true, i1 true>
; CHECK-NEXT: [[TMP5]] = or <4 x i1> [[VEC_PHI]], [[NOT]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[TMP7:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP5]])
; CHECK-NEXT: [[FR:%.*]] = freeze i1 [[TMP7]]
; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 7, i32 3
; CHECK-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
; SCALABLE-LABEL: @select_const_i32_from_icmp
; SCALABLE: vector.ph:
; SCALABLE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
; SCALABLE-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, [[TMP3]]
; SCALABLE-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; SCALABLE-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP11:%.*]] = mul i64 [[TMP10]], 4
; SCALABLE-NEXT: br label [[VECTOR_BODY:%.*]]
; SCALABLE: vector.body:
; SCALABLE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP9:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; SCALABLE-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, ptr [[V:%.*]], i64 [[TMP4]]
; SCALABLE-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, ptr [[TMP5]], i32 0
; SCALABLE-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x i32>, ptr [[TMP6]], align 4
; SCALABLE-NEXT: [[TMP8:%.*]] = icmp eq <vscale x 4 x i32> [[WIDE_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[NOT:%.*]] = xor <vscale x 4 x i1> [[TMP8]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[TMP9]] = or <vscale x 4 x i1> [[VEC_PHI]], [[NOT]]
; SCALABLE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP11]]
; SCALABLE-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; SCALABLE-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; SCALABLE: middle.block:
; SCALABLE-NEXT: [[TMP13:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[TMP9]])
; SCALABLE-NEXT: [[FR:%.*]] = freeze i1 [[TMP13]]
; SCALABLE-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 7, i32 3
; SCALABLE-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%0 = phi i64 [ 0, %entry ], [ %6, %for.body ]
%1 = phi i32 [ 3, %entry ], [ %5, %for.body ]
%2 = getelementptr inbounds i32, ptr %v, i64 %0
%3 = load i32, ptr %2, align 4
%4 = icmp eq i32 %3, 3
%5 = select i1 %4, i32 %1, i32 7
%6 = add nuw nsw i64 %0, 1
%7 = icmp eq i64 %6, %n
br i1 %7, label %exit, label %for.body
exit: ; preds = %for.body
ret i32 %5
}
define i32 @select_i32_from_icmp(ptr nocapture readonly %v, i32 %a, i32 %b, i64 %n) #0 {
; CHECK-LABEL: @select_i32_from_icmp
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[V:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[TMP1]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP2]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = icmp eq <4 x i32> [[WIDE_LOAD]], <i32 3, i32 3, i32 3, i32 3>
; CHECK-NEXT: [[NOT:%.*]] = xor <4 x i1> [[TMP4]], <i1 true, i1 true, i1 true, i1 true>
; CHECK-NEXT: [[TMP5]] = or <4 x i1> [[VEC_PHI]], [[NOT]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[TMP7:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP5]])
; CHECK-NEXT: [[FR:%.*]] = freeze i1 [[TMP7]]
; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 %b, i32 %a
; CHECK-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
; SCALABLE-LABEL: @select_i32_from_icmp
; SCALABLE: vector.ph:
; SCALABLE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
; SCALABLE-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, [[TMP3]]
; SCALABLE-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; SCALABLE-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP11:%.*]] = mul i64 [[TMP10]], 4
; SCALABLE-NEXT: br label [[VECTOR_BODY:%.*]]
; SCALABLE: vector.body:
; SCALABLE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP9:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; SCALABLE-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, ptr [[V:%.*]], i64 [[TMP4]]
; SCALABLE-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, ptr [[TMP5]], i32 0
; SCALABLE-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x i32>, ptr [[TMP6]], align 4
; SCALABLE-NEXT: [[TMP8:%.*]] = icmp eq <vscale x 4 x i32> [[WIDE_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[NOT:%.*]] = xor <vscale x 4 x i1> [[TMP8]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[TMP9]] = or <vscale x 4 x i1> [[VEC_PHI]], [[NOT]]
; SCALABLE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP11]]
; SCALABLE-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; SCALABLE-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP8:![0-9]+]]
; SCALABLE: middle.block:
; SCALABLE-NEXT: [[TMP13:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[TMP9]])
; SCALABLE-NEXT: [[FR:%.*]] = freeze i1 [[TMP13]]
; SCALABLE-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 %b, i32 %a
; SCALABLE-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%0 = phi i64 [ 0, %entry ], [ %6, %for.body ]
%1 = phi i32 [ %a, %entry ], [ %5, %for.body ]
%2 = getelementptr inbounds i32, ptr %v, i64 %0
%3 = load i32, ptr %2, align 4
%4 = icmp eq i32 %3, 3
%5 = select i1 %4, i32 %1, i32 %b
%6 = add nuw nsw i64 %0, 1
%7 = icmp eq i64 %6, %n
br i1 %7, label %exit, label %for.body
exit: ; preds = %for.body
ret i32 %5
}
define i32 @select_const_i32_from_fcmp(ptr nocapture readonly %v, i64 %n) #0 {
; CHECK-LABEL: @select_const_i32_from_fcmp
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP5:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds float, ptr [[V:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, ptr [[TMP1]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x float>, ptr [[TMP2]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = fcmp fast ueq <4 x float> [[WIDE_LOAD]], <float 3.000000e+00, float 3.000000e+00, float 3.000000e+00, float 3.000000e+00>
; CHECK-NEXT: [[NOT:%.*]] = xor <4 x i1> [[TMP4]], <i1 true, i1 true, i1 true, i1 true>
; CHECK-NEXT: [[TMP5]] = or <4 x i1> [[VEC_PHI]], [[NOT]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[TMP7:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[TMP5]])
; CHECK-NEXT: [[FR:%.*]] = freeze i1 [[TMP7]]
; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 1, i32 2
; CHECK-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
; SCALABLE-LABEL: @select_const_i32_from_fcmp
; SCALABLE: vector.ph:
; SCALABLE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
; SCALABLE-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, [[TMP3]]
; SCALABLE-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; SCALABLE-NEXT: [[TMP10:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP11:%.*]] = mul i64 [[TMP10]], 4
; SCALABLE-NEXT: br label [[VECTOR_BODY:%.*]]
; SCALABLE: vector.body:
; SCALABLE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP9:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; SCALABLE-NEXT: [[TMP5:%.*]] = getelementptr inbounds float, ptr [[V:%.*]], i64 [[TMP4]]
; SCALABLE-NEXT: [[TMP6:%.*]] = getelementptr inbounds float, ptr [[TMP5]], i32 0
; SCALABLE-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x float>, ptr [[TMP6]], align 4
; SCALABLE-NEXT: [[TMP8:%.*]] = fcmp fast ueq <vscale x 4 x float> [[WIDE_LOAD]], shufflevector (<vscale x 4 x float> insertelement (<vscale x 4 x float> poison, float 3.000000e+00, i64 0), <vscale x 4 x float> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[NOT:%.*]] = xor <vscale x 4 x i1> [[TMP8]], shufflevector (<vscale x 4 x i1> insertelement (<vscale x 4 x i1> poison, i1 true, i64 0), <vscale x 4 x i1> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[TMP9]] = or <vscale x 4 x i1> [[VEC_PHI]], [[NOT]]
; SCALABLE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP11]]
; SCALABLE-NEXT: [[TMP12:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; SCALABLE-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP10:![0-9]+]]
; SCALABLE: middle.block:
; SCALABLE-NEXT: [[TMP13:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[TMP9]])
; SCALABLE-NEXT: [[FR:%.*]] = freeze i1 [[TMP13]]
; SCALABLE-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 1, i32 2
; SCALABLE-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%0 = phi i64 [ 0, %entry ], [ %6, %for.body ]
%1 = phi i32 [ 2, %entry ], [ %5, %for.body ]
%2 = getelementptr inbounds float, ptr %v, i64 %0
%3 = load float, ptr %2, align 4
%4 = fcmp fast ueq float %3, 3.0
%5 = select i1 %4, i32 %1, i32 1
%6 = add nuw nsw i64 %0, 1
%7 = icmp eq i64 %6, %n
br i1 %7, label %exit, label %for.body
exit: ; preds = %for.body
ret i32 %5
}
define float @select_const_f32_from_icmp(ptr nocapture readonly %v, i64 %n) #0 {
; CHECK-LABEL: @select_const_f32_from_icmp
; CHECK-NOT: vector.body
;
; SCALABLE-LABEL: @select_const_f32_from_icmp
; SCALABLE-NOT: vector.body
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%0 = phi i64 [ 0, %entry ], [ %6, %for.body ]
%1 = phi fast float [ 3.0, %entry ], [ %5, %for.body ]
%2 = getelementptr inbounds i32, ptr %v, i64 %0
%3 = load i32, ptr %2, align 4
%4 = icmp eq i32 %3, 3
%5 = select fast i1 %4, float %1, float 7.0
%6 = add nuw nsw i64 %0, 1
%7 = icmp eq i64 %6, %n
br i1 %7, label %exit, label %for.body
exit: ; preds = %for.body
ret float %5
}
define i32 @pred_select_const_i32_from_icmp(ptr noalias nocapture readonly %src1, ptr noalias nocapture readonly %src2, i64 %n) #0 {
; CHECK-LABEL: @pred_select_const_i32_from_icmp
; CHECK: vector.ph:
; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, 4
; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PREDPHI:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[SRC1:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32, ptr [[TMP1]], i32 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP2]], align 4
; CHECK-NEXT: [[TMP4:%.*]] = icmp sgt <4 x i32> [[WIDE_LOAD]], <i32 35, i32 35, i32 35, i32 35>
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i32, ptr [[SRC2:%.*]], i64 [[TMP0]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i32, ptr [[TMP5]], i32 0
; CHECK-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr [[TMP6]], i32 4, <4 x i1> [[TMP4]], <4 x i32> poison)
; CHECK-NEXT: [[TMP8:%.*]] = icmp eq <4 x i32> [[WIDE_MASKED_LOAD]], <i32 2, i32 2, i32 2, i32 2>
; CHECK-NEXT: [[TMP9:%.*]] = or <4 x i1> [[VEC_PHI]], [[TMP8]]
; CHECK-NEXT: [[PREDPHI]] = select <4 x i1> [[TMP4]], <4 x i1> [[TMP9]], <4 x i1> [[VEC_PHI]]
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP11:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP11]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[TMP12:%.*]] = call i1 @llvm.vector.reduce.or.v4i1(<4 x i1> [[PREDPHI]])
; CHECK-NEXT: [[FR:%.*]] = freeze i1 [[TMP12]]
; CHECK-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 1, i32 0
; CHECK-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
; SCALABLE-LABEL: @pred_select_const_i32_from_icmp
; SCALABLE: vector.ph:
; SCALABLE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP3:%.*]] = mul i64 [[TMP2]], 4
; SCALABLE-NEXT: [[N_MOD_VF:%.*]] = urem i64 %n, [[TMP3]]
; SCALABLE-NEXT: [[N_VEC:%.*]] = sub i64 %n, [[N_MOD_VF]]
; SCALABLE-NEXT: [[TMP15:%.*]] = call i64 @llvm.vscale.i64()
; SCALABLE-NEXT: [[TMP16:%.*]] = mul i64 [[TMP15]], 4
; SCALABLE-NEXT: br label [[VECTOR_BODY:%.*]]
; SCALABLE: vector.body:
; SCALABLE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH:%.*]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 4 x i1> [ zeroinitializer, [[VECTOR_PH]] ], [ [[PREDPHI:%.*]], [[VECTOR_BODY]] ]
; SCALABLE-NEXT: [[TMP4:%.*]] = add i64 [[INDEX]], 0
; SCALABLE-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, ptr [[SRC1:%.*]], i64 [[TMP4]]
; SCALABLE-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, ptr [[TMP5]], i32 0
; SCALABLE-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x i32>, ptr [[TMP6]], align 4
; SCALABLE-NEXT: [[TMP8:%.*]] = icmp sgt <vscale x 4 x i32> [[WIDE_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 35, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[TMP9:%.*]] = getelementptr i32, ptr [[SRC2:%.*]], i64 [[TMP4]]
; SCALABLE-NEXT: [[TMP10:%.*]] = getelementptr i32, ptr [[TMP9]], i32 0
; SCALABLE-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0(ptr [[TMP10]], i32 4, <vscale x 4 x i1> [[TMP8]], <vscale x 4 x i32> poison)
; SCALABLE-NEXT: [[TMP12:%.*]] = icmp eq <vscale x 4 x i32> [[WIDE_MASKED_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 2, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; SCALABLE-NEXT: [[TMP13:%.*]] = or <vscale x 4 x i1> [[VEC_PHI]], [[TMP12]]
; SCALABLE-NEXT: [[PREDPHI]] = select <vscale x 4 x i1> [[TMP8]], <vscale x 4 x i1> [[TMP13]], <vscale x 4 x i1> [[VEC_PHI]]
; SCALABLE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP16]]
; SCALABLE-NEXT: [[TMP17:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; SCALABLE-NEXT: br i1 [[TMP17]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP12:![0-9]+]]
; SCALABLE: middle.block:
; SCALABLE-NEXT: [[TMP18:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[PREDPHI]])
; SCALABLE-NEXT: [[FR:%.*]] = freeze i1 [[TMP18]]
; SCALABLE-NEXT: [[RDX_SELECT:%.*]] = select i1 [[FR]], i32 1, i32 0
; SCALABLE-NEXT: %cmp.n = icmp eq i64 %n, %n.vec
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.inc
%i.013 = phi i64 [ %inc, %for.inc ], [ 0, %entry ]
%r.012 = phi i32 [ %r.1, %for.inc ], [ 0, %entry ]
%arrayidx = getelementptr inbounds i32, ptr %src1, i64 %i.013
%0 = load i32, ptr %arrayidx, align 4
%cmp1 = icmp sgt i32 %0, 35
br i1 %cmp1, label %if.then, label %for.inc
if.then: ; preds = %for.body
%arrayidx2 = getelementptr inbounds i32, ptr %src2, i64 %i.013
%1 = load i32, ptr %arrayidx2, align 4
%cmp3 = icmp eq i32 %1, 2
%spec.select = select i1 %cmp3, i32 1, i32 %r.012
br label %for.inc
for.inc: ; preds = %if.then, %for.body
%r.1 = phi i32 [ %r.012, %for.body ], [ %spec.select, %if.then ]
%inc = add nuw nsw i64 %i.013, 1
%exitcond.not = icmp eq i64 %inc, %n
br i1 %exitcond.not, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %for.inc
%r.1.lcssa = phi i32 [ %r.1, %for.inc ]
ret i32 %r.1.lcssa
}
attributes #0 = { "target-features"="+f,+v" }
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