93a9be0cea
Previously only the very first gather/buildvector node might be probed for reshuffling of other nodes. But the compiler may do the same for other gather/buildvector nodes too, just need to check the dependency and postpone the emission of the dependent nodes, if the origin nodes were not emitted yet. Part of D110978 Differential Revision: https://reviews.llvm.org/D144958
78 lines
3.2 KiB
LLVM
78 lines
3.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=slp-vectorizer -S -mcpu=cascadelake -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
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define void @foo() {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CONV:%.*]] = uitofp i16 undef to float
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; CHECK-NEXT: [[SUB:%.*]] = fsub float 6.553500e+04, undef
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; CHECK-NEXT: br label [[BB1:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: [[TMP0:%.*]] = insertelement <4 x float> <float poison, float poison, float undef, float undef>, float [[SUB]], i32 0
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; CHECK-NEXT: [[TMP1:%.*]] = insertelement <4 x float> [[TMP0]], float [[CONV]], i32 1
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; CHECK-NEXT: br label [[BB2:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: [[TMP2:%.*]] = phi <4 x float> [ [[TMP1]], [[BB1]] ], [ [[TMP10:%.*]], [[BB3:%.*]] ]
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; CHECK-NEXT: [[TMP3:%.*]] = load double, ptr undef, align 8
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; CHECK-NEXT: br i1 undef, label [[BB3]], label [[BB4:%.*]]
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; CHECK: bb4:
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; CHECK-NEXT: [[TMP4:%.*]] = fpext <4 x float> [[TMP2]] to <4 x double>
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; CHECK-NEXT: [[CONV2:%.*]] = uitofp i16 undef to double
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; CHECK-NEXT: [[ADD1:%.*]] = fadd double [[TMP3]], [[CONV2]]
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; CHECK-NEXT: [[SUB1:%.*]] = fsub double undef, undef
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; CHECK-NEXT: [[TMP5:%.*]] = insertelement <4 x double> <double poison, double poison, double undef, double undef>, double [[SUB1]], i32 0
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; CHECK-NEXT: [[TMP6:%.*]] = insertelement <4 x double> [[TMP5]], double [[ADD1]], i32 1
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; CHECK-NEXT: [[TMP7:%.*]] = fcmp ogt <4 x double> [[TMP6]], [[TMP4]]
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; CHECK-NEXT: [[TMP8:%.*]] = fptrunc <4 x double> [[TMP6]] to <4 x float>
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; CHECK-NEXT: [[TMP9:%.*]] = select <4 x i1> [[TMP7]], <4 x float> [[TMP2]], <4 x float> [[TMP8]]
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb3:
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; CHECK-NEXT: [[TMP10]] = phi <4 x float> [ [[TMP9]], [[BB4]] ], [ [[TMP2]], [[BB2]] ]
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; CHECK-NEXT: br label [[BB2]]
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;
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entry:
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%conv = uitofp i16 undef to float
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%sub = fsub float 6.553500e+04, undef
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br label %bb1
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bb1:
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br label %bb2
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bb2:
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%0 = phi float [ %sub, %bb1 ], [ %9, %bb3 ]
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%1 = phi float [ %conv, %bb1 ], [ %10, %bb3 ]
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%2 = phi float [ undef, %bb1 ], [ %11, %bb3 ]
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%3 = phi float [ undef, %bb1 ], [ %12, %bb3 ]
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%4 = load double, ptr undef, align 8
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br i1 undef, label %bb3, label %bb4
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bb4:
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%ext = fpext float %3 to double
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%cmp1 = fcmp ogt double undef, %ext
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%5 = fptrunc double undef to float
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%sel1 = select i1 %cmp1, float %3, float %5
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%ext2 = fpext float %2 to double
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%cmp2 = fcmp ogt double undef, %ext2
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%6 = fptrunc double undef to float
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%sel2 = select i1 %cmp2, float %2, float %6
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%ext3 = fpext float %1 to double
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%conv2 = uitofp i16 undef to double
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%add1 = fadd double %4, %conv2
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%cmp3 = fcmp ogt double %add1, %ext3
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%7 = fptrunc double %add1 to float
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%sel3 = select i1 %cmp3, float %1, float %7
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%ext4 = fpext float %0 to double
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%sub1 = fsub double undef, undef
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%cmp4 = fcmp ogt double %sub1, %ext4
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%8 = fptrunc double %sub1 to float
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%sel4 = select i1 %cmp4, float %0, float %8
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br label %bb3
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bb3:
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%9 = phi float [ %sel4, %bb4 ], [ %0, %bb2 ]
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%10 = phi float [ %sel3, %bb4 ], [ %1, %bb2 ]
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%11 = phi float [ %sel2, %bb4 ], [ %2, %bb2 ]
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%12 = phi float [ %sel1, %bb4 ], [ %3, %bb2 ]
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br label %bb2
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}
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