[PowerPC] [Clang] Add vector int128 pack/unpack builtins

unsigned long long builtin_unpack_vector_int128 (vector int128_t, int);
vector int128_t builtin_pack_vector_int128 (unsigned long long, unsigned long long);

Builtins should behave the same way as in GCC.

Patch By: wuzish (Zixuan Wu)
Differential Revision: https://reviews.llvm.org/D52074

llvm-svn: 342614

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/test/CodeGen/builtins-ppc-error.c b/clang/test/CodeGen/builtins-ppc-error.c
index 29eebf28610..a50dc2cba02 100644
--- a/clang/test/CodeGen/builtins-ppc-error.c
+++ b/clang/test/CodeGen/builtins-ppc-error.c
@@ -14,6 +14,7 @@ extern vector signed int vsi;
 extern vector signed int vui;
 extern vector float vf;
 extern vector unsigned char vuc;
+extern vector signed __int128 vsllli;
 
 void testInsertWord(void) {
   int index = 5;
@@ -67,3 +68,8 @@ void testCTU(int index) {
 void testVCTUXS(int index) {
   vec_vctuxs(vf, index); //expected-error {{argument to '__builtin_altivec_vctuxs' must be a constant integer}}
 }
+
+void testUnpack128(int index) {
+  __builtin_unpack_vector_int128(vsllli, index); //expected-error {{argument to '__builtin_unpack_vector_int128' must be a constant integer}}
+  __builtin_unpack_vector_int128(vsllli, 5); //expected-error {{argument value 5 is outside the valid range [0, 1]}}
+}