forked from OSchip/llvm-project
207 lines
15 KiB
LLVM
207 lines
15 KiB
LLVM
; RUN: opt -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S \
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; RUN: -prefer-predicate-over-epilogue=scalar-epilogue < %s | FileCheck %s --check-prefix=CHECK-VF4IC1
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; RUN: opt -loop-vectorize -force-vector-interleave=4 -force-vector-width=4 -S \
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; RUN: -prefer-predicate-over-epilogue=scalar-epilogue < %s | FileCheck %s --check-prefix=CHECK-VF4IC4
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target triple = "aarch64-linux-gnu"
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define i32 @select_const_i32_from_icmp(i32* nocapture readonly %v, i64 %n) #0 {
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; CHECK-VF4IC1-LABEL: @select_const_i32_from_icmp
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; CHECK-VF4IC1: vector.body:
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; CHECK-VF4IC1: [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer), %vector.ph ], [ [[VEC_SEL:%.*]], %vector.body ]
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; CHECK-VF4IC1: [[VEC_LOAD:%.*]] = load <vscale x 4 x i32>
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; CHECK-VF4IC1-NEXT: [[VEC_ICMP:%.*]] = icmp eq <vscale x 4 x i32> [[VEC_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1-NEXT: [[VEC_SEL]] = select <vscale x 4 x i1> [[VEC_ICMP]], <vscale x 4 x i32> [[VEC_PHI]], <vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 7, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1: middle.block:
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; CHECK-VF4IC1-NEXT: [[FIN_ICMP:%.*]] = icmp ne <vscale x 4 x i32> [[VEC_SEL]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1-NEXT: [[OR_RDX:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[FIN_ICMP]])
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; CHECK-VF4IC1-NEXT: {{.*}} = select i1 [[OR_RDX]], i32 7, i32 3
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; CHECK-VF4IC4-LABEL: @select_const_i32_from_icmp
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; CHECK-VF4IC4: vector.body:
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; CHECK-VF4IC4: [[VEC_PHI1:%.*]] = phi <vscale x 4 x i32> [ shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer), %vector.ph ], [ [[VEC_SEL1:%.*]], %vector.body ]
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; CHECK-VF4IC4: [[VEC_PHI2:%.*]] = phi <vscale x 4 x i32> [ shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer), %vector.ph ], [ [[VEC_SEL2:%.*]], %vector.body ]
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; CHECK-VF4IC4: [[VEC_PHI3:%.*]] = phi <vscale x 4 x i32> [ shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer), %vector.ph ], [ [[VEC_SEL3:%.*]], %vector.body ]
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; CHECK-VF4IC4: [[VEC_PHI4:%.*]] = phi <vscale x 4 x i32> [ shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer), %vector.ph ], [ [[VEC_SEL4:%.*]], %vector.body ]
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; CHECK-VF4IC4: [[VEC_ICMP1:%.*]] = icmp eq <vscale x 4 x i32> {{.*}}, shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_ICMP2:%.*]] = icmp eq <vscale x 4 x i32> {{.*}}, shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_ICMP3:%.*]] = icmp eq <vscale x 4 x i32> {{.*}}, shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_ICMP4:%.*]] = icmp eq <vscale x 4 x i32> {{.*}}, shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_SEL1]] = select <vscale x 4 x i1> [[VEC_ICMP1]], <vscale x 4 x i32> [[VEC_PHI1]], <vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 7, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_SEL2]] = select <vscale x 4 x i1> [[VEC_ICMP2]], <vscale x 4 x i32> [[VEC_PHI2]], <vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 7, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_SEL3]] = select <vscale x 4 x i1> [[VEC_ICMP3]], <vscale x 4 x i32> [[VEC_PHI3]], <vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 7, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_SEL4]] = select <vscale x 4 x i1> [[VEC_ICMP4]], <vscale x 4 x i32> [[VEC_PHI4]], <vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 7, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4: middle.block:
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; CHECK-VF4IC4-NEXT: [[VEC_ICMP5:%.*]] = icmp ne <vscale x 4 x i32> [[VEC_SEL1]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_SEL5:%.*]] = select <vscale x 4 x i1> [[VEC_ICMP5]], <vscale x 4 x i32> [[VEC_SEL1]], <vscale x 4 x i32> [[VEC_SEL2]]
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; CHECK-VF4IC4-NEXT: [[VEC_ICMP6:%.*]] = icmp ne <vscale x 4 x i32> [[VEC_SEL5]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_SEL6:%.*]] = select <vscale x 4 x i1> [[VEC_ICMP6]], <vscale x 4 x i32> [[VEC_SEL5]], <vscale x 4 x i32> [[VEC_SEL3]]
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; CHECK-VF4IC4-NEXT: [[VEC_ICMP7:%.*]] = icmp ne <vscale x 4 x i32> [[VEC_SEL6]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[VEC_SEL7:%.*]] = select <vscale x 4 x i1> [[VEC_ICMP7]], <vscale x 4 x i32> [[VEC_SEL6]], <vscale x 4 x i32> [[VEC_SEL4]]
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; CHECK-VF4IC4-NEXT: [[FIN_ICMP:%.*]] = icmp ne <vscale x 4 x i32> [[VEC_SEL7]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC4-NEXT: [[OR_RDX:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[FIN_ICMP]])
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; CHECK-VF4IC4-NEXT: {{.*}} = select i1 [[OR_RDX]], i32 7, i32 3
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entry:
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br label %for.body
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for.body: ; preds = %entry, %for.body
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%0 = phi i64 [ 0, %entry ], [ %6, %for.body ]
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%1 = phi i32 [ 3, %entry ], [ %5, %for.body ]
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%2 = getelementptr inbounds i32, i32* %v, i64 %0
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%3 = load i32, i32* %2, align 4
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%4 = icmp eq i32 %3, 3
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%5 = select i1 %4, i32 %1, i32 7
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%6 = add nuw nsw i64 %0, 1
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%7 = icmp eq i64 %6, %n
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br i1 %7, label %exit, label %for.body, !llvm.loop !0
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exit: ; preds = %for.body
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ret i32 %5
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}
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define i32 @select_i32_from_icmp(i32* nocapture readonly %v, i32 %a, i32 %b, i64 %n) #0 {
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; CHECK-VF4IC1-LABEL: @select_i32_from_icmp
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; CHECK-VF4IC1: vector.ph:
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; CHECK-VF4IC1: [[TMP1:%.*]] = insertelement <vscale x 4 x i32> poison, i32 %a, i32 0
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; CHECK-VF4IC1-NEXT: [[SPLAT_OF_A:%.*]] = shufflevector <vscale x 4 x i32> [[TMP1]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
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; CHECK-VF4IC1-NEXT: [[TMP2:%.*]] = insertelement <vscale x 4 x i32> poison, i32 %b, i32 0
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; CHECK-VF4IC1-NEXT: [[SPLAT_OF_B:%.*]] = shufflevector <vscale x 4 x i32> [[TMP2]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
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; CHECK-VF4IC1: vector.body:
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; CHECK-VF4IC1: [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ [[SPLAT_OF_A]], %vector.ph ], [ [[VEC_SEL:%.*]], %vector.body ]
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; CHECK-VF4IC1: [[VEC_LOAD:%.*]] = load <vscale x 4 x i32>
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; CHECK-VF4IC1-NEXT: [[VEC_ICMP:%.*]] = icmp eq <vscale x 4 x i32> [[VEC_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 3, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1-NEXT: [[VEC_SEL]] = select <vscale x 4 x i1> [[VEC_ICMP]], <vscale x 4 x i32> [[VEC_PHI]], <vscale x 4 x i32> [[SPLAT_OF_B]]
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; CHECK-VF4IC1: middle.block:
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; CHECK-VF4IC1-NEXT: [[FIN_INS:%.*]] = insertelement <vscale x 4 x i32> poison, i32 %a, i32 0
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; CHECK-VF4IC1-NEXT: [[FIN_SPLAT:%.*]] = shufflevector <vscale x 4 x i32> [[FIN_INS]], <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer
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; CHECK-VF4IC1-NEXT: [[FIN_CMP:%.*]] = icmp ne <vscale x 4 x i32> [[VEC_SEL]], [[FIN_SPLAT]]
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; CHECK-VF4IC1-NEXT: [[OR_RDX:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[FIN_CMP]])
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; CHECK-VF4IC1-NEXT: {{.*}} = select i1 [[OR_RDX]], i32 %b, i32 %a
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; CHECK-VF4IC4-LABEL: @select_i32_from_icmp
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; CHECK-VF4IC4: vector.body:
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entry:
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br label %for.body
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for.body: ; preds = %entry, %for.body
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%0 = phi i64 [ 0, %entry ], [ %6, %for.body ]
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%1 = phi i32 [ %a, %entry ], [ %5, %for.body ]
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%2 = getelementptr inbounds i32, i32* %v, i64 %0
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%3 = load i32, i32* %2, align 4
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%4 = icmp eq i32 %3, 3
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%5 = select i1 %4, i32 %1, i32 %b
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%6 = add nuw nsw i64 %0, 1
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%7 = icmp eq i64 %6, %n
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br i1 %7, label %exit, label %for.body, !llvm.loop !0
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exit: ; preds = %for.body
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ret i32 %5
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}
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define i32 @select_const_i32_from_fcmp(float* nocapture readonly %v, i64 %n) #0 {
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; CHECK-VF4IC1-LABEL: @select_const_i32_from_fcmp
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; CHECK-VF4IC1: vector.body:
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; CHECK-VF4IC1: [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 2, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer), %vector.ph ], [ [[VEC_SEL:%.*]], %vector.body ]
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; CHECK-VF4IC1: [[VEC_LOAD:%.*]] = load <vscale x 4 x float>
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; CHECK-VF4IC1-NEXT: [[VEC_ICMP:%.*]] = fcmp fast ueq <vscale x 4 x float> [[VEC_LOAD]], shufflevector (<vscale x 4 x float> insertelement (<vscale x 4 x float> poison, float 3.000000e+00, i32 0), <vscale x 4 x float> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1-NEXT: [[VEC_SEL]] = select <vscale x 4 x i1> [[VEC_ICMP]], <vscale x 4 x i32> [[VEC_PHI]], <vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 1, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1: middle.block:
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; CHECK-VF4IC1-NEXT: [[FIN_ICMP:%.*]] = icmp ne <vscale x 4 x i32> [[VEC_SEL]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 2, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1-NEXT: [[OR_RDX:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[FIN_ICMP]])
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; CHECK-VF4IC1-NEXT: {{.*}} = select i1 [[OR_RDX]], i32 1, i32 2
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; CHECK-VF4IC4-LABEL: @select_const_i32_from_fcmp
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; CHECK-VF4IC4: vector.body:
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entry:
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br label %for.body
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for.body: ; preds = %entry, %for.body
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%0 = phi i64 [ 0, %entry ], [ %6, %for.body ]
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%1 = phi i32 [ 2, %entry ], [ %5, %for.body ]
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%2 = getelementptr inbounds float, float* %v, i64 %0
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%3 = load float, float* %2, align 4
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%4 = fcmp fast ueq float %3, 3.0
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%5 = select i1 %4, i32 %1, i32 1
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%6 = add nuw nsw i64 %0, 1
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%7 = icmp eq i64 %6, %n
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br i1 %7, label %exit, label %for.body, !llvm.loop !0
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exit: ; preds = %for.body
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ret i32 %5
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}
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define float @select_const_f32_from_icmp(i32* nocapture readonly %v, i64 %n) #0 {
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; CHECK-VF4IC1-LABEL: @select_const_f32_from_icmp
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; CHECK-VF4IC1-NOT: vector.body
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; CHECK-VF4IC4-LABEL: @select_const_f32_from_icmp
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; CHECK-VF4IC4-NOT: vector.body
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entry:
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br label %for.body
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for.body: ; preds = %entry, %for.body
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%0 = phi i64 [ 0, %entry ], [ %6, %for.body ]
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%1 = phi fast float [ 3.0, %entry ], [ %5, %for.body ]
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%2 = getelementptr inbounds i32, i32* %v, i64 %0
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%3 = load i32, i32* %2, align 4
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%4 = icmp eq i32 %3, 3
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%5 = select fast i1 %4, float %1, float 7.0
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%6 = add nuw nsw i64 %0, 1
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%7 = icmp eq i64 %6, %n
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br i1 %7, label %exit, label %for.body, !llvm.loop !0
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exit: ; preds = %for.body
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ret float %5
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}
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define i32 @pred_select_const_i32_from_icmp(i32* noalias nocapture readonly %src1, i32* noalias nocapture readonly %src2, i64 %n) #0 {
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; CHECK-VF4IC1-LABEL: @pred_select_const_i32_from_icmp
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; CHECK-VF4IC1: vector.body:
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; CHECK-VF4IC1: [[VEC_PHI:%.*]] = phi <vscale x 4 x i32> [ zeroinitializer, %vector.ph ], [ [[VEC_SEL:%.*]], %vector.body ]
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; CHECK-VF4IC1: [[VEC_LOAD:%.*]] = load <vscale x 4 x i32>
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; CHECK-VF4IC1: [[MASK:%.*]] = icmp sgt <vscale x 4 x i32> [[VEC_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 35, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1: [[MASKED_LOAD:%.*]] = call <vscale x 4 x i32> @llvm.masked.load.nxv4i32.p0nxv4i32(<vscale x 4 x i32>* {{%.*}}, i32 4, <vscale x 4 x i1> [[MASK]], <vscale x 4 x i32> poison)
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; CHECK-VF4IC1-NEXT: [[VEC_ICMP:%.*]] = icmp eq <vscale x 4 x i32> [[MASKED_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 2, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
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; CHECK-VF4IC1-NEXT: [[VEC_SEL_TMP:%.*]] = select <vscale x 4 x i1> [[VEC_ICMP]], <vscale x 4 x i32> shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 1, i32 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer), <vscale x 4 x i32> [[VEC_PHI]]
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; CHECK-VF4IC1: [[VEC_SEL:%.*]] = select <vscale x 4 x i1> [[MASK]], <vscale x 4 x i32> [[VEC_SEL_TMP]], <vscale x 4 x i32> [[VEC_PHI]]
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; CHECK-VF4IC1: middle.block:
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; CHECK-VF4IC1-NEXT: [[FIN_ICMP:%.*]] = icmp ne <vscale x 4 x i32> [[VEC_SEL]], zeroinitializer
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; CHECK-VF4IC1-NEXT: [[OR_RDX:%.*]] = call i1 @llvm.vector.reduce.or.nxv4i1(<vscale x 4 x i1> [[FIN_ICMP]])
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; CHECK-VF4IC1-NEXT: {{.*}} = select i1 [[OR_RDX]], i32 1, i32 0
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; CHECK-VF4IC4-LABEL: @pred_select_const_i32_from_icmp
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; CHECK-VF4IC4: vector.body:
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entry:
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br label %for.body
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for.body: ; preds = %entry, %for.inc
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%i.013 = phi i64 [ %inc, %for.inc ], [ 0, %entry ]
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%r.012 = phi i32 [ %r.1, %for.inc ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds i32, i32* %src1, i64 %i.013
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%0 = load i32, i32* %arrayidx, align 4
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%cmp1 = icmp sgt i32 %0, 35
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br i1 %cmp1, label %if.then, label %for.inc
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if.then: ; preds = %for.body
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%arrayidx2 = getelementptr inbounds i32, i32* %src2, i64 %i.013
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%1 = load i32, i32* %arrayidx2, align 4
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%cmp3 = icmp eq i32 %1, 2
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%spec.select = select i1 %cmp3, i32 1, i32 %r.012
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br label %for.inc
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for.inc: ; preds = %if.then, %for.body
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%r.1 = phi i32 [ %r.012, %for.body ], [ %spec.select, %if.then ]
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%inc = add nuw nsw i64 %i.013, 1
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%exitcond.not = icmp eq i64 %inc, %n
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br i1 %exitcond.not, label %for.end.loopexit, label %for.body, !llvm.loop !0
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for.end.loopexit: ; preds = %for.inc
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%r.1.lcssa = phi i32 [ %r.1, %for.inc ]
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ret i32 %r.1.lcssa
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}
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attributes #0 = { "target-features"="+sve" }
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!0 = distinct !{!0, !1}
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!1 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
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