remove dce pass from tests

Author: uyoyo0

llvm/test/Transforms/VectorCombine/AArch64/scalarize-ext-extract-endian.ll

@@ -1,13 +1,16 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -passes='vector-combine,dce' -S -mtriple=aarch64-unknown-linux-gnu %s -o - | FileCheck %s --check-prefix=LE
-; RUN: opt -passes='vector-combine,dce' -S -mtriple=aarch64_be-unknown-linux-gnu %s -o - | FileCheck %s --check-prefix=BE
+; RUN: opt -passes='vector-combine' -S -mtriple=aarch64-unknown-linux-gnu %s -o - | FileCheck %s --check-prefix=LE
+; RUN: opt -passes='vector-combine' -S -mtriple=aarch64_be-unknown-linux-gnu %s -o - | FileCheck %s --check-prefix=BE
 
 define i64 @g(<8 x i8> %v) {
 ; LE-LABEL: @g(
 ; LE-NEXT:    [[TMP1:%.*]] = freeze <8 x i8> [[V:%.*]]
 ; LE-NEXT:    [[TMP2:%.*]] = bitcast <8 x i8> [[TMP1]] to i64
 ; LE-NEXT:    [[TMP3:%.*]] = lshr i64 [[TMP2]], 56
 ; LE-NEXT:    [[TMP4:%.*]] = and i64 [[TMP2]], 255
+; LE-NEXT:    [[Z:%.*]] = zext <8 x i8> [[V]] to <8 x i64>
+; LE-NEXT:    [[E0:%.*]] = extractelement <8 x i64> [[Z]], i32 0
+; LE-NEXT:    [[E7:%.*]] = extractelement <8 x i64> [[Z]], i32 7
 ; LE-NEXT:    [[SUM:%.*]] = add i64 [[TMP4]], [[TMP3]]
 ; LE-NEXT:    ret i64 [[SUM]]
 ;
@@ -16,6 +19,9 @@ define i64 @g(<8 x i8> %v) {
 ; BE-NEXT:    [[TMP2:%.*]] = bitcast <8 x i8> [[TMP1]] to i64
 ; BE-NEXT:    [[TMP3:%.*]] = and i64 [[TMP2]], 255
 ; BE-NEXT:    [[TMP4:%.*]] = lshr i64 [[TMP2]], 56
+; BE-NEXT:    [[Z:%.*]] = zext <8 x i8> [[V]] to <8 x i64>
+; BE-NEXT:    [[E0:%.*]] = extractelement <8 x i64> [[Z]], i32 0
+; BE-NEXT:    [[E7:%.*]] = extractelement <8 x i64> [[Z]], i32 7
 ; BE-NEXT:    [[SUM:%.*]] = add i64 [[TMP4]], [[TMP3]]
 ; BE-NEXT:    ret i64 [[SUM]]
 ;

llvm/test/Transforms/VectorCombine/PowerPC/scalarize-ext-extract.ll

@@ -1,12 +1,15 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt -passes='vector-combine,dce' -S -mtriple=powerpc64-ibm-aix-xcoff     %s -o - | FileCheck %s --check-prefix=BE
+; RUN: opt -passes='vector-combine' -S -mtriple=powerpc64-ibm-aix-xcoff     %s -o - | FileCheck %s --check-prefix=BE
 
 define i64 @g(<8 x i8> %v) {
 ; BE-LABEL: @g(
 ; BE-NEXT:    [[TMP1:%.*]] = freeze <8 x i8> [[V:%.*]]
 ; BE-NEXT:    [[TMP2:%.*]] = bitcast <8 x i8> [[TMP1]] to i64
 ; BE-NEXT:    [[TMP3:%.*]] = and i64 [[TMP2]], 255
 ; BE-NEXT:    [[TMP4:%.*]] = lshr i64 [[TMP2]], 56
+; BE-NEXT:    [[Z:%.*]] = zext <8 x i8> [[V]] to <8 x i64>
+; BE-NEXT:    [[E0:%.*]] = extractelement <8 x i64> [[Z]], i32 0
+; BE-NEXT:    [[E7:%.*]] = extractelement <8 x i64> [[Z]], i32 7
 ; BE-NEXT:    [[SUM:%.*]] = add i64 [[TMP4]], [[TMP3]]
 ; BE-NEXT:    ret i64 [[SUM]]
 ;