Removed unused variables and made test more extensive

Author: shashank1545

clang/lib/AST/ExprConstant.cpp

@@ -11628,9 +11628,7 @@ static bool evalPshufbBuiltin(EvalInfo &Info, const CallExpr *Call,
     return false;
 
   QualType ElemT = VT->getElementType();
-  unsigned ElemBits = Info.Ctx.getTypeSize(ElemT);
   unsigned NumElts = VT->getNumElements();
-  bool DestUnsigned = ElemT->isUnsignedIntegerOrEnumerationType();
 
   SmallVector<APValue, 64> ResultElements;
   ResultElements.reserve(NumElts);

clang/test/CodeGen/X86/avx2-builtins.c

@@ -1106,7 +1106,7 @@ __m256i test_mm256_shuffle_epi8(__m256i a, __m256i b) {
   return _mm256_shuffle_epi8(a, b);
 }
 
-TEST_CONSTEXPR(match_v32qi(_mm256_shuffle_epi8((__m256i)(__v32qi){0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31}, (__m256i)(__v32qi){0,33,2,35,4,37,6,39,8,41,10,43,12,45,14,47,16,49,18,51,20,53,22,55,24,57,26,59,28,61,30,63}), 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31));
+TEST_CONSTEXPR(match_v32qi(_mm256_shuffle_epi8((__m256i)(__v32qi){0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31}, (__m256i)(__v32qs){0,33,2,35,4,37,6,-39,8,41,10,43,12,45,14,-47,16,49,18,51,20,53,22,-55,24,57,26,59,28,61,30,-63}), 0,1,2,3,4,5,6,0,8,9,10,11,12,13,14,0,16,17,18,19,20,21,22,0,24,25,26,27,28,29,30,0));
 
 __m256i test_mm256_shuffle_epi32(__m256i a) {
   // CHECK-LABEL: test_mm256_shuffle_epi32

clang/test/CodeGen/X86/avx512bw-builtins.c

@@ -1467,7 +1467,7 @@ __m512i test_mm512_shuffle_epi8(__m512i __A, __m512i __B) {
   return _mm512_shuffle_epi8(__A,__B); 
 }
 
-TEST_CONSTEXPR(match_v64qi(_mm512_shuffle_epi8((__m512i)(__v64qi){0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63}, (__m512i)(__v64qi){0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95}), 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63));
+TEST_CONSTEXPR(match_v64qi(_mm512_shuffle_epi8((__m512i)(__v64qi){0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63}, (__m512i)(__v64qs){0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,-15,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,-15,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,-79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,-95}), 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,0,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,0,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,0));
 
 __m512i test_mm512_mask_shuffle_epi8(__m512i __W, __mmask64 __U, __m512i __A, __m512i __B) {
   // CHECK-LABEL: test_mm512_mask_shuffle_epi8

clang/test/CodeGen/X86/ssse3-builtins.c

@@ -110,7 +110,7 @@ __m128i test_mm_shuffle_epi8(__m128i a, __m128i b) {
   return _mm_shuffle_epi8(a, b);
 }
 
-TEST_CONSTEXPR(match_v16qi(_mm_shuffle_epi8((__m128i)(__v16qi){0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,char(-15)}, (__m128i)(__v16qi){15,char(-14),13,12,11,10,9,8,7,6,5,4,3,2,1,0}), -15,0,13,12,11,10,9,8,7,6,5,4,3,2,1,0));
+TEST_CONSTEXPR(match_v16qi(_mm_shuffle_epi8((__m128i)(__v16qs){0,-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15}, (__m128i)(__v16qs){15,-14,13,-12,11,-10,9,-8,7,-6,5,-4,3,-2,1,0}), -15,0,-13,0,-11,0,-9,0,-7,0,-5,0,-3,0,-1,0));
 
 __m128i test_mm_sign_epi8(__m128i a, __m128i b) {
   // CHECK-LABEL: test_mm_sign_epi8