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authorAlexey Bataev <a.bataev@outlook.com>2021-09-22 08:08:40 -0700
committerTom Stellard <tstellar@redhat.com>2021-11-10 09:50:50 -0800
commit93edfb23b18b50c9356c1e99903e077095b66b59 (patch)
treef7f1092606c1e8aa806dd2030098d739f919861b
parent162f3f18c9454f93b71451f2792f348928c84a2f (diff)
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[SLP][NFC]Add a test to show an issue with incorrectly extracted
pointers. (cherry picked from commit 173dd896db976d1e975a2a5d844fc09238884277)
-rw-r--r--llvm/test/Transforms/SLPVectorizer/X86/extract_in_tree_user.ll35
1 files changed, 34 insertions, 1 deletions
diff --git a/llvm/test/Transforms/SLPVectorizer/X86/extract_in_tree_user.ll b/llvm/test/Transforms/SLPVectorizer/X86/extract_in_tree_user.ll
index efbdb14..2348b5a 100644
--- a/llvm/test/Transforms/SLPVectorizer/X86/extract_in_tree_user.ll
+++ b/llvm/test/Transforms/SLPVectorizer/X86/extract_in_tree_user.ll
@@ -32,7 +32,6 @@ entry:
ret i32 undef
}
-
declare float @llvm.powi.f32.i32(float, i32)
define void @fn2(i32* %a, i32* %b, float* %c) {
; CHECK-LABEL: @fn2(
@@ -99,3 +98,37 @@ entry:
ret void
}
+
+define void @externally_used_ptrs() {
+; CHECK-LABEL: @externally_used_ptrs(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TMP0:%.*]] = load i64*, i64** @a, align 8
+; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x i64*> poison, i64* [[TMP0]], i32 0
+; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x i64*> [[TMP1]], i64* [[TMP0]], i32 1
+; CHECK-NEXT: [[TMP3:%.*]] = getelementptr i64, <2 x i64*> [[TMP2]], <2 x i64> <i64 56, i64 11>
+; CHECK-NEXT: [[TMP4:%.*]] = ptrtoint <2 x i64*> [[TMP3]] to <2 x i64>
+; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i64, i64* [[TMP0]], i64 12
+; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i64*> [[TMP3]], i32 0
+; CHECK-NEXT: [[TMP6:%.*]] = bitcast i64* [[TMP5]] to <2 x i64>*
+; CHECK-NEXT: [[TMP7:%.*]] = load <2 x i64>, <2 x i64>* [[TMP6]], align 8
+; CHECK-NEXT: [[TMP8:%.*]] = extractelement <2 x i64*> [[TMP3]], i32 1
+; CHECK-NEXT: [[TMP9:%.*]] = add <2 x i64> [[TMP4]], [[TMP7]]
+; CHECK-NEXT: [[TMP10:%.*]] = bitcast i64* [[TMP5]] to <2 x i64>*
+; CHECK-NEXT: store <2 x i64> [[TMP9]], <2 x i64>* [[TMP10]], align 8
+; CHECK-NEXT: ret void
+;
+entry:
+ %0 = load i64*, i64** @a, align 8
+ %add.ptr = getelementptr inbounds i64, i64* %0, i64 11
+ %1 = ptrtoint i64* %add.ptr to i64
+ %add.ptr1 = getelementptr inbounds i64, i64* %0, i64 56
+ %2 = ptrtoint i64* %add.ptr1 to i64
+ %arrayidx2 = getelementptr inbounds i64, i64* %0, i64 12
+ %3 = load i64, i64* %arrayidx2, align 8
+ %4 = load i64, i64* %add.ptr, align 8
+ %5 = add i64 %1, %3
+ %6 = add i64 %2, %4
+ store i64 %6, i64* %add.ptr, align 8
+ store i64 %5, i64* %arrayidx2, align 8
+ ret void
+}