[llvm] bc28f17 - [SLP]Added test for gathering reused extracts from narrow vector, NFC.

[Alexey Bataev via llvm-commits]

Author: Alexey Bataev
Date: 2019-12-19T12:51:56-05:00
New Revision: bc28f17e4ff57d6693548e936662ff3507948225

URL: https://github.com/llvm/llvm-project/commit/bc28f17e4ff57d6693548e936662ff3507948225
DIFF: https://github.com/llvm/llvm-project/commit/bc28f17e4ff57d6693548e936662ff3507948225.diff

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

Added: 
    llvm/test/Transforms/SLPVectorizer/X86/reuse-extracts-in-wider-vect.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/SLPVectorizer/X86/reuse-extracts-in-wider-vect.ll b/llvm/test/Transforms/SLPVectorizer/X86/reuse-extracts-in-wider-vect.ll
new file mode 100644
index 000000000000..7bd87b957a9a
--- /dev/null
+++ b/llvm/test/Transforms/SLPVectorizer/X86/reuse-extracts-in-wider-vect.ll
@@ -0,0 +1,71 @@
+; 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
+
+}
+