Merging r347556:llvm_70-amp-20181130release_70-e8af9b4c407-amp-20181130

------------------------------------------------------------------------
r347556 | nemanjai | 2018-11-26 06:35:38 -0800 (Mon, 26 Nov 2018) | 11 lines

[PowerPC] Vector load/store builtins overstate alignment of pointers

A number of builtins in altivec.h load/store vectors from pointers to scalar
types. Currently they just cast the pointer to a vector pointer, but expressions
like that have the alignment of the target type. Of course, the input pointer
did not have that alignment so this triggers UBSan (and rightly so).

This resolves https://bugs.llvm.org/show_bug.cgi?id=39704

Differential revision: https://reviews.llvm.org/D54787

------------------------------------------------------------------------

git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_70@347935 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 16 insertions, 16 deletions

diff --git a/test/CodeGen/builtins-ppc-quadword.c b/test/CodeGen/builtins-ppc-quadword.c
index 7d014db613..868fb183a6 100644
--- a/test/CodeGen/builtins-ppc-quadword.c
+++ b/test/CodeGen/builtins-ppc-quadword.c
@@ -205,45 +205,45 @@ void test1() {
 
   /* vec_xl */
   res_vlll = vec_xl(param_sll, &param_lll);
-  // CHECK: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 16
+  // CHECK: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 1
   // CHECK-PPC: error: call to 'vec_xl' is ambiguous
 
   res_vulll = vec_xl(param_sll, &param_ulll);
-  // CHECK: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 16
+  // CHECK: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 1
   // CHECK-PPC: error: call to 'vec_xl' is ambiguous
 
   /* vec_xst */
    vec_xst(vlll, param_sll, &param_lll);
-  // CHECK: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 16
+  // CHECK: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 1
   // CHECK-PPC: error: call to 'vec_xst' is ambiguous
 
    vec_xst(vulll, param_sll, &param_ulll);
-  // CHECK: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 16
+  // CHECK: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 1
   // CHECK-PPC: error: call to 'vec_xst' is ambiguous
 
   /* vec_xl_be */
   res_vlll = vec_xl_be(param_sll, &param_lll);
-  // CHECK: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 16
+  // CHECK: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 1
   // CHECK-PPC: error: call to 'vec_xl' is ambiguous
 
   res_vulll = vec_xl_be(param_sll, &param_ulll);
-  // CHECK: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 16
+  // CHECK: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <1 x i128>, <1 x i128>* %{{[0-9]+}}, align 1
   // CHECK-PPC: error: call to 'vec_xl' is ambiguous
 
   /* vec_xst_be  */
    vec_xst_be(vlll, param_sll, &param_lll);
-  // CHECK: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 16
+  // CHECK: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 1
   // CHECK-PPC: error: call to 'vec_xst' is ambiguous
 
    vec_xst_be(vulll, param_sll, &param_ulll);
-  // CHECK: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 16
+  // CHECK: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <1 x i128> %{{[0-9]+}}, <1 x i128>* %{{[0-9]+}}, align 1
   // CHECK-PPC: error: call to 'vec_xst' is ambiguous
 }