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[SLP]Added test for gathering reused extracts from narrow vector, NFC.

This commit is contained in:
Alexey Bataev 2019-12-19 12:49:01 -05:00
parent ec4f06a77d
commit bc28f17e4f
1 changed files with 71 additions and 0 deletions
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llvm/test/Transforms/SLPVectorizer/X86/reuse-extracts-in-wider-vect.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -slp-vectorizer -S -mtriple=x86_64-unknown-linux -march=core-avx2 | FileCheck %s
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
%struct.S = type { [3 x float], [3 x float], [4 x float] }
define i32 @foo(i32 %0, i32* %1, float* %2) {
; CHECK-LABEL: @foo(
; CHECK-NEXT: [[T4:%.*]] = alloca [[STRUCT_S:%.*]], align 8
; CHECK-NEXT: [[T8:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[T4]], i64 0, i32 1
; CHECK-NEXT: [[T9:%.*]] = getelementptr inbounds [3 x float], [3 x float]* [[T8]], i64 1, i64 0
; CHECK-NEXT: [[T14:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[T4]], i64 0, i32 1, i64 0
; CHECK-NEXT: [[T11:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[T4]], i64 0, i32 1, i64 1
; CHECK-NEXT: [[TMP4:%.*]] = bitcast float* [[T14]] to <2 x float>*
; CHECK-NEXT: [[TMP5:%.*]] = load <2 x float>, <2 x float>* [[TMP4]], align 4
; CHECK-NEXT: br label [[T37:%.*]]
; CHECK: t37:
; CHECK-NEXT: [[TMP6:%.*]] = phi <2 x float> [ [[TMP5]], [[TMP3:%.*]] ], [ [[T89:%.*]], [[T37]] ]
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x float> [[TMP6]], i32 0
; CHECK-NEXT: [[T20:%.*]] = fdiv fast float 1.000000e+00, [[TMP7]]
; CHECK-NEXT: [[TMP8:%.*]] = extractelement <2 x float> [[TMP6]], i32 1
; CHECK-NEXT: [[T24:%.*]] = fdiv fast float 1.000000e+00, [[TMP8]]
; CHECK-NEXT: [[T21:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[T4]], i64 0, i32 2, i64 0
; CHECK-NEXT: [[T25:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[T4]], i64 0, i32 2, i64 1
; CHECK-NEXT: [[T31:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[T4]], i64 0, i32 2, i64 2
; CHECK-NEXT: [[T33:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[T4]], i64 0, i32 2, i64 3
; CHECK-NEXT: store float [[T20]], float* [[T21]], align 4
; CHECK-NEXT: store float [[T24]], float* [[T25]], align 4
; CHECK-NEXT: store float [[T24]], float* [[T31]], align 4
; CHECK-NEXT: store float [[T24]], float* [[T33]], align 4
; CHECK-NEXT: [[T88:%.*]] = bitcast float* [[T9]] to <2 x float>*
; CHECK-NEXT: [[T89]] = load <2 x float>, <2 x float>* [[T88]], align 4
; CHECK-NEXT: br i1 undef, label [[T37]], label [[T55:%.*]]
; CHECK: t55:
; CHECK-NEXT: ret i32 0
;
%t4 = alloca %struct.S, align 8
%t8 = getelementptr inbounds %struct.S, %struct.S* %t4, i64 0, i32 1
%t9 = getelementptr inbounds [3 x float], [3 x float]* %t8, i64 1, i64 0
%t14 = getelementptr inbounds %struct.S, %struct.S* %t4, i64 0, i32 1, i64 0
%t11 = getelementptr inbounds %struct.S, %struct.S* %t4, i64 0, i32 1, i64 1
%t15 = load float, float* %t14, align 4
%t16 = load float, float* %t11, align 4
br label %t37
t37:
%t18 = phi float [ %t16, %3 ], [ %x24, %t37 ]
%t19 = phi float [ %t15, %3 ], [ %x23, %t37 ]
%t20 = fdiv fast float 1.000000e+00, %t19
%t24 = fdiv fast float 1.000000e+00, %t18
%t21 = getelementptr inbounds %struct.S, %struct.S* %t4, i64 0, i32 2, i64 0
%t25 = getelementptr inbounds %struct.S, %struct.S* %t4, i64 0, i32 2, i64 1
%t31 = getelementptr inbounds %struct.S, %struct.S* %t4, i64 0, i32 2, i64 2
%t33 = getelementptr inbounds %struct.S, %struct.S* %t4, i64 0, i32 2, i64 3
store float %t20, float* %t21, align 4
store float %t24, float* %t25, align 4
store float %t24, float* %t31, align 4
store float %t24, float* %t33, align 4
%t88 = bitcast float* %t9 to <2 x float>*
%t89 = load <2 x float>, <2 x float>* %t88, align 4
%x23 = extractelement <2 x float> %t89, i32 0
%x24 = extractelement <2 x float> %t89, i32 1
br i1 undef, label %t37, label %t55
t55:
ret i32 0
}