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llvm-project/llvm/test/Transforms/SLPVectorizer/X86/crash_smallpt.ll
Juneyoung Lee 4a8e6ed2f7 [SLP,LV] Use poison constant vector for shufflevector/initial insertelement 
This patch makes SLP and LV emit operations with initial vectors set to poison constant instead of undef.
This is a part of efforts for using poison vector instead of undef to represent "doesn't care" vector.
The goal is to make nice shufflevector optimizations valid that is currently incorrect due to the tricky interaction between undef and poison (see https://bugs.llvm.org/show_bug.cgi?id=44185 ).

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D94061
2021-01-06 11:22:50 +09:00

167 lines
9.7 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -basic-aa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.8.0"
%struct.Ray.5.11.53.113.119.137.149.185.329.389.416 = type { %struct.Vec.0.6.48.108.114.132.144.180.324.384.414, %struct.Vec.0.6.48.108.114.132.144.180.324.384.414 }
%struct.Vec.0.6.48.108.114.132.144.180.324.384.414 = type { double, double, double }
; Function Attrs: ssp uwtable
define void @main() #0 {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 undef, label [[COND_TRUE:%.*]], label [[COND_END:%.*]]
; CHECK: cond.true:
; CHECK-NEXT: unreachable
; CHECK: cond.end:
; CHECK-NEXT: br label [[INVOKE_CONT:%.*]]
; CHECK: invoke.cont:
; CHECK-NEXT: br i1 undef, label [[ARRAYCTOR_CONT:%.*]], label [[INVOKE_CONT]]
; CHECK: arrayctor.cont:
; CHECK-NEXT: [[AGG_TMP99208_SROA_0_0_IDX:%.*]] = getelementptr inbounds [[STRUCT_RAY_5_11_53_113_119_137_149_185_329_389_416:%.*]], %struct.Ray.5.11.53.113.119.137.149.185.329.389.416* undef, i64 0, i32 0, i32 0
; CHECK-NEXT: [[AGG_TMP101211_SROA_0_0_IDX:%.*]] = getelementptr inbounds [[STRUCT_RAY_5_11_53_113_119_137_149_185_329_389_416]], %struct.Ray.5.11.53.113.119.137.149.185.329.389.416* undef, i64 0, i32 1, i32 0
; CHECK-NEXT: br label [[FOR_COND36_PREHEADER:%.*]]
; CHECK: for.cond36.preheader:
; CHECK-NEXT: br i1 undef, label [[FOR_BODY42_LR_PH_US:%.*]], label [[_Z5CLAMPD_EXIT_1:%.*]]
; CHECK: cond.false51.us:
; CHECK-NEXT: unreachable
; CHECK: cond.true48.us:
; CHECK-NEXT: br i1 undef, label [[COND_TRUE63_US:%.*]], label [[COND_FALSE66_US:%.*]]
; CHECK: cond.false66.us:
; CHECK-NEXT: [[ADD_I276_US:%.*]] = fadd double 0.000000e+00, undef
; CHECK-NEXT: [[TMP0:%.*]] = insertelement <2 x double> poison, double [[ADD_I276_US]], i32 0
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x double> [[TMP0]], double undef, i32 1
; CHECK-NEXT: [[TMP2:%.*]] = fadd <2 x double> [[TMP1]], <double 0.000000e+00, double 0xBFA5CC2D1960285F>
; CHECK-NEXT: [[TMP3:%.*]] = fmul <2 x double> [[TMP2]], <double 1.400000e+02, double 1.400000e+02>
; CHECK-NEXT: [[TMP4:%.*]] = fadd <2 x double> [[TMP3]], <double 5.000000e+01, double 5.200000e+01>
; CHECK-NEXT: [[TMP5:%.*]] = fmul <2 x double> undef, [[TMP2]]
; CHECK-NEXT: [[TMP6:%.*]] = bitcast double* [[AGG_TMP99208_SROA_0_0_IDX]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP4]], <2 x double>* [[TMP6]], align 8
; CHECK-NEXT: [[TMP7:%.*]] = bitcast double* [[AGG_TMP101211_SROA_0_0_IDX]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP5]], <2 x double>* [[TMP7]], align 8
; CHECK-NEXT: unreachable
; CHECK: cond.true63.us:
; CHECK-NEXT: unreachable
; CHECK: for.body42.lr.ph.us:
; CHECK-NEXT: br i1 undef, label [[COND_TRUE48_US:%.*]], label [[COND_FALSE51_US:%.*]]
; CHECK: _Z5clampd.exit.1:
; CHECK-NEXT: br label [[FOR_COND36_PREHEADER]]
;
entry:
br i1 undef, label %cond.true, label %cond.end
cond.true: ; preds = %entry
unreachable
cond.end: ; preds = %entry
br label %invoke.cont
invoke.cont: ; preds = %invoke.cont, %cond.end
br i1 undef, label %arrayctor.cont, label %invoke.cont
arrayctor.cont: ; preds = %invoke.cont
%agg.tmp99208.sroa.0.0.idx = getelementptr inbounds %struct.Ray.5.11.53.113.119.137.149.185.329.389.416, %struct.Ray.5.11.53.113.119.137.149.185.329.389.416* undef, i64 0, i32 0, i32 0
%agg.tmp99208.sroa.1.8.idx388 = getelementptr inbounds %struct.Ray.5.11.53.113.119.137.149.185.329.389.416, %struct.Ray.5.11.53.113.119.137.149.185.329.389.416* undef, i64 0, i32 0, i32 1
%agg.tmp101211.sroa.0.0.idx = getelementptr inbounds %struct.Ray.5.11.53.113.119.137.149.185.329.389.416, %struct.Ray.5.11.53.113.119.137.149.185.329.389.416* undef, i64 0, i32 1, i32 0
%agg.tmp101211.sroa.1.8.idx390 = getelementptr inbounds %struct.Ray.5.11.53.113.119.137.149.185.329.389.416, %struct.Ray.5.11.53.113.119.137.149.185.329.389.416* undef, i64 0, i32 1, i32 1
br label %for.cond36.preheader
for.cond36.preheader: ; preds = %_Z5clampd.exit.1, %arrayctor.cont
br i1 undef, label %for.body42.lr.ph.us, label %_Z5clampd.exit.1
cond.false51.us: ; preds = %for.body42.lr.ph.us
unreachable
cond.true48.us: ; preds = %for.body42.lr.ph.us
br i1 undef, label %cond.true63.us, label %cond.false66.us
cond.false66.us: ; preds = %cond.true48.us
%add.i276.us = fadd double 0.000000e+00, undef
%add.i264.us = fadd double %add.i276.us, 0.000000e+00
%add4.i267.us = fadd double undef, 0xBFA5CC2D1960285F
%mul.i254.us = fmul double %add.i264.us, 1.400000e+02
%mul2.i256.us = fmul double %add4.i267.us, 1.400000e+02
%add.i243.us = fadd double %mul.i254.us, 5.000000e+01
%add4.i246.us = fadd double %mul2.i256.us, 5.200000e+01
%mul.i.i.us = fmul double undef, %add.i264.us
%mul2.i.i.us = fmul double undef, %add4.i267.us
store double %add.i243.us, double* %agg.tmp99208.sroa.0.0.idx, align 8
store double %add4.i246.us, double* %agg.tmp99208.sroa.1.8.idx388, align 8
store double %mul.i.i.us, double* %agg.tmp101211.sroa.0.0.idx, align 8
store double %mul2.i.i.us, double* %agg.tmp101211.sroa.1.8.idx390, align 8
unreachable
cond.true63.us: ; preds = %cond.true48.us
unreachable
for.body42.lr.ph.us: ; preds = %for.cond36.preheader
br i1 undef, label %cond.true48.us, label %cond.false51.us
_Z5clampd.exit.1: ; preds = %for.cond36.preheader
br label %for.cond36.preheader
}
%struct.Ray.5.11.53.95.137.191.197.203.239.257.263.269.275.281.287.293.383.437.443.455.461.599.601 = type { %struct.Vec.0.6.48.90.132.186.192.198.234.252.258.264.270.276.282.288.378.432.438.450.456.594.600, %struct.Vec.0.6.48.90.132.186.192.198.234.252.258.264.270.276.282.288.378.432.438.450.456.594.600 }
%struct.Vec.0.6.48.90.132.186.192.198.234.252.258.264.270.276.282.288.378.432.438.450.456.594.600 = type { double, double, double }
define void @_Z8radianceRK3RayiPt() #0 {
; CHECK-LABEL: @_Z8radianceRK3RayiPt(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 undef, label [[IF_THEN78:%.*]], label [[IF_THEN38:%.*]]
; CHECK: if.then38:
; CHECK-NEXT: [[TMP0:%.*]] = insertelement <2 x double> <double undef, double poison>, double undef, i32 1
; CHECK-NEXT: [[TMP1:%.*]] = fmul <2 x double> undef, [[TMP0]]
; CHECK-NEXT: [[TMP2:%.*]] = fsub <2 x double> undef, [[TMP1]]
; CHECK-NEXT: [[TMP3:%.*]] = fmul <2 x double> undef, [[TMP2]]
; CHECK-NEXT: [[TMP4:%.*]] = fmul <2 x double> undef, [[TMP3]]
; CHECK-NEXT: [[TMP5:%.*]] = fadd <2 x double> undef, [[TMP4]]
; CHECK-NEXT: [[TMP6:%.*]] = fadd <2 x double> undef, [[TMP5]]
; CHECK-NEXT: [[TMP7:%.*]] = fmul <2 x double> undef, [[TMP6]]
; CHECK-NEXT: [[AGG_TMP74663_SROA_0_0_IDX:%.*]] = getelementptr inbounds [[STRUCT_RAY_5_11_53_95_137_191_197_203_239_257_263_269_275_281_287_293_383_437_443_455_461_599_601:%.*]], %struct.Ray.5.11.53.95.137.191.197.203.239.257.263.269.275.281.287.293.383.437.443.455.461.599.601* undef, i64 0, i32 1, i32 0
; CHECK-NEXT: [[TMP8:%.*]] = bitcast double* [[AGG_TMP74663_SROA_0_0_IDX]] to <2 x double>*
; CHECK-NEXT: store <2 x double> [[TMP7]], <2 x double>* [[TMP8]], align 8
; CHECK-NEXT: br label [[RETURN:%.*]]
; CHECK: if.then78:
; CHECK-NEXT: br label [[RETURN]]
; CHECK: return:
; CHECK-NEXT: ret void
;
entry:
br i1 undef, label %if.then78, label %if.then38
if.then38: ; preds = %entry
%mul.i.i790 = fmul double undef, undef
%mul3.i.i792 = fmul double undef, undef
%mul.i764 = fmul double undef, %mul3.i.i792
%mul4.i767 = fmul double undef, undef
%sub.i768 = fsub double %mul.i764, %mul4.i767
%mul6.i770 = fmul double undef, %mul.i.i790
%mul9.i772 = fmul double undef, %mul3.i.i792
%sub10.i773 = fsub double %mul6.i770, %mul9.i772
%mul.i736 = fmul double undef, %sub.i768
%mul2.i738 = fmul double undef, %sub10.i773
%mul.i727 = fmul double undef, %mul.i736
%mul2.i729 = fmul double undef, %mul2.i738
%add.i716 = fadd double undef, %mul.i727
%add4.i719 = fadd double undef, %mul2.i729
%add.i695 = fadd double undef, %add.i716
%add4.i698 = fadd double undef, %add4.i719
%mul.i.i679 = fmul double undef, %add.i695
%mul2.i.i680 = fmul double undef, %add4.i698
%agg.tmp74663.sroa.0.0.idx = getelementptr inbounds %struct.Ray.5.11.53.95.137.191.197.203.239.257.263.269.275.281.287.293.383.437.443.455.461.599.601, %struct.Ray.5.11.53.95.137.191.197.203.239.257.263.269.275.281.287.293.383.437.443.455.461.599.601* undef, i64 0, i32 1, i32 0
store double %mul.i.i679, double* %agg.tmp74663.sroa.0.0.idx, align 8
%agg.tmp74663.sroa.1.8.idx943 = getelementptr inbounds %struct.Ray.5.11.53.95.137.191.197.203.239.257.263.269.275.281.287.293.383.437.443.455.461.599.601, %struct.Ray.5.11.53.95.137.191.197.203.239.257.263.269.275.281.287.293.383.437.443.455.461.599.601* undef, i64 0, i32 1, i32 1
store double %mul2.i.i680, double* %agg.tmp74663.sroa.1.8.idx943, align 8
br label %return
if.then78: ; preds = %entry
br label %return
return: ; preds = %if.then78, %if.then38
ret void
}
attributes #0 = { ssp uwtable "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
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