[PATCH] D54787: [PowerPC] Vector load/store builtins overstate alignment of pointers

Mon, 26 Nov 2018 06:38:54 -0800 

This revision was automatically updated to reflect the committed changes.
Closed by commit rL347556: [PowerPC] Vector load/store builtins overstate 
alignment of pointers (authored by nemanjai, committed by ).
Herald added a subscriber: llvm-commits.

Changed prior to commit:
  https://reviews.llvm.org/D54787?vs=174899&id=175243#toc

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D54787/new/

https://reviews.llvm.org/D54787

Files:
  cfe/trunk/lib/Headers/altivec.h
  cfe/trunk/test/CodeGen/builtins-ppc-altivec.c
  cfe/trunk/test/CodeGen/builtins-ppc-quadword.c
  cfe/trunk/test/CodeGen/builtins-ppc-vsx.c


Index: cfe/trunk/test/CodeGen/builtins-ppc-quadword.c
===================================================================
--- cfe/trunk/test/CodeGen/builtins-ppc-quadword.c
+++ cfe/trunk/test/CodeGen/builtins-ppc-quadword.c
@@ -205,45 +205,45 @@
 
   /* 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
 }
Index: cfe/trunk/test/CodeGen/builtins-ppc-vsx.c
===================================================================
--- cfe/trunk/test/CodeGen/builtins-ppc-vsx.c
+++ cfe/trunk/test/CodeGen/builtins-ppc-vsx.c
@@ -1638,51 +1638,51 @@
 // CHECK-LE: @llvm.ppc.altivec.vsro
 
 res_vsll = vec_xl(sll, asll);
-// CHECK: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 16
-// CHECK-LE: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 16
+// CHECK: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 1
+// CHECK-LE: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 1
 
 res_vull = vec_xl(sll, aull);
-// CHECK: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 16
-// CHECK-LE: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 16
+// CHECK: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 1
+// CHECK-LE: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 1
 
 res_vd = vec_xl(sll, ad);
-// CHECK: load <2 x double>, <2 x double>* %{{[0-9]+}}, align 16
-// CHECK-LE: load <2 x double>, <2 x double>* %{{[0-9]+}}, align 16
+// CHECK: load <2 x double>, <2 x double>* %{{[0-9]+}}, align 1
+// CHECK-LE: load <2 x double>, <2 x double>* %{{[0-9]+}}, align 1
 
 vec_xst(vsll, sll, asll);
-// CHECK: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 16
-// CHECK-LE: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 16
+// CHECK: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 1
+// CHECK-LE: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 1
 
 vec_xst(vull, sll, aull);
-// CHECK: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 16
-// CHECK-LE: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 16
+// CHECK: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 1
+// CHECK-LE: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 1
 
 vec_xst(vd, sll, ad);
-// CHECK: store <2 x double> %{{[0-9]+}}, <2 x double>* %{{[0-9]+}}, align 16
-// CHECK-LE: store <2 x double> %{{[0-9]+}}, <2 x double>* %{{[0-9]+}}, align 16
+// CHECK: store <2 x double> %{{[0-9]+}}, <2 x double>* %{{[0-9]+}}, align 1
+// CHECK-LE: store <2 x double> %{{[0-9]+}}, <2 x double>* %{{[0-9]+}}, align 1
 
 res_vsll = vec_xl_be(sll, asll);
-// CHECK: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 16
+// CHECK: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 1
 // CHECK-LE: call <2 x double> @llvm.ppc.vsx.lxvd2x.be(i8* %{{[0-9]+}})
 
 res_vull = vec_xl_be(sll, aull);
-// CHECK: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 16
+// CHECK: load <2 x i64>, <2 x i64>* %{{[0-9]+}}, align 1
 // CHECK-LE: call <2 x double> @llvm.ppc.vsx.lxvd2x.be(i8* %{{[0-9]+}})
 
 res_vd = vec_xl_be(sll, ad);
-// CHECK: load <2 x double>, <2 x double>* %{{[0-9]+}}, align 16
+// CHECK: load <2 x double>, <2 x double>* %{{[0-9]+}}, align 1
 // CHECK-LE: call <2 x double> @llvm.ppc.vsx.lxvd2x.be(i8* %{{[0-9]+}})
 
 vec_xst_be(vsll, sll, asll);
-// CHECK: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 16
+// CHECK: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 1
 // CHECK-LE: call void @llvm.ppc.vsx.stxvd2x.be(<2 x double> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
 vec_xst_be(vull, sll, aull);
-// CHECK: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 16
+// CHECK: store <2 x i64> %{{[0-9]+}}, <2 x i64>* %{{[0-9]+}}, align 1
 // CHECK-LE: call void @llvm.ppc.vsx.stxvd2x.be(<2 x double> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
 vec_xst_be(vd, sll, ad);
-// CHECK: store <2 x double> %{{[0-9]+}}, <2 x double>* %{{[0-9]+}}, align 16
+// CHECK: store <2 x double> %{{[0-9]+}}, <2 x double>* %{{[0-9]+}}, align 1
 // CHECK-LE: call void @llvm.ppc.vsx.stxvd2x.be(<2 x double> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
   res_vf = vec_neg(vf);
Index: cfe/trunk/test/CodeGen/builtins-ppc-altivec.c
===================================================================
--- cfe/trunk/test/CodeGen/builtins-ppc-altivec.c
+++ cfe/trunk/test/CodeGen/builtins-ppc-altivec.c
@@ -9362,32 +9362,32 @@
   // CHECK-LABEL: define void @test9
   // CHECK-LE-LABEL: define void @test9
   res_vsc = vec_xl(param_sll, &param_sc);
-  // CHECK: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 16
+  // CHECK: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 1
 
   res_vuc = vec_xl(param_sll, &param_uc);
-  // CHECK: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 16
+  // CHECK: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 1
 
   res_vs = vec_xl(param_sll, &param_s);
-  // CHECK: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 16
+  // CHECK: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 1
 
   res_vus = vec_xl(param_sll, &param_us);
-  // CHECK: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 16
+  // CHECK: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 1
 
   res_vi = vec_xl(param_sll, &param_i);
-  // CHECK: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 16
+  // CHECK: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 1
 
   res_vui = vec_xl(param_sll, &param_ui);
-  // CHECK: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 16
+  // CHECK: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 1
 
   res_vf = vec_xl(param_sll, &param_f);
-  // CHECK: load <4 x float>, <4 x float>* %{{[0-9]+}}, align 16
-  // CHECK-LE: load <4 x float>, <4 x float>* %{{[0-9]+}}, align 16
+  // CHECK: load <4 x float>, <4 x float>* %{{[0-9]+}}, align 1
+  // CHECK-LE: load <4 x float>, <4 x float>* %{{[0-9]+}}, align 1
 }
 
 /* ------------------------------ vec_xst ----------------------------------- */
@@ -9395,32 +9395,32 @@
   // CHECK-LABEL: define void @test10
   // CHECK-LE-LABEL: define void @test10
   vec_xst(vsc, param_sll, &param_sc);
-  // CHECK: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 16
+  // CHECK: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 1
 
   vec_xst(vuc, param_sll, &param_uc);
-  // CHECK: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 16
+  // CHECK: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 1
 
   vec_xst(vs, param_sll, &param_s);
-  // CHECK: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 16
+  // CHECK: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 1
 
   vec_xst(vus, param_sll, &param_us);
-  // CHECK: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 16
+  // CHECK: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 1
 
   vec_xst(vi, param_sll, &param_i);
-  // CHECK: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 16
+  // CHECK: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 1
 
   vec_xst(vui, param_sll, &param_ui);
-  // CHECK: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 16
+  // CHECK: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 1
 
   vec_xst(vf, param_sll, &param_f);
-  // CHECK: store <4 x float> %{{[0-9]+}}, <4 x float>* %{{[0-9]+}}, align 16
-  // CHECK-LE: store <4 x float> %{{[0-9]+}}, <4 x float>* %{{[0-9]+}}, align 16
+  // CHECK: store <4 x float> %{{[0-9]+}}, <4 x float>* %{{[0-9]+}}, align 1
+  // CHECK-LE: store <4 x float> %{{[0-9]+}}, <4 x float>* %{{[0-9]+}}, align 1
 }
 
 /* ----------------------------- vec_xl_be ---------------------------------- */
@@ -9428,35 +9428,35 @@
   // CHECK-LABEL: define void @test11
   // CHECK-LE-LABEL: define void @test11
   res_vsc = vec_xl_be(param_sll, &param_sc);
-  // CHECK: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 16
+  // CHECK: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 1
   // CHECK-LE: call <2 x double> @llvm.ppc.vsx.lxvd2x.be(i8* %{{[0-9]+}})
   // CHECK-LE: shufflevector <16 x i8> %{{[0-9]+}}, <16 x i8> %{{[0-9]+}}, <16 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0, i32 15, i32 14, i32 13, i32 12, i32 11, i32 10, i32 9, i32 8>
 
   res_vuc = vec_xl_be(param_sll, &param_uc);
-  // CHECK: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 16
+  // CHECK: load <16 x i8>, <16 x i8>* %{{[0-9]+}}, align 1
   // CHECK-LE: call <2 x double> @llvm.ppc.vsx.lxvd2x.be(i8* %{{[0-9]+}})
   // CHECK-LE: shufflevector <16 x i8> %{{[0-9]+}}, <16 x i8> %{{[0-9]+}}, <16 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0, i32 15, i32 14, i32 13, i32 12, i32 11, i32 10, i32 9, i32 8>
 
   res_vs = vec_xl_be(param_sll, &param_s);
-  // CHECK: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 16
+  // CHECK: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 1
   // CHECK-LE: call <2 x double> @llvm.ppc.vsx.lxvd2x.be(i8* %{{[0-9]+}})
   // CHECK-LE: shufflevector <8 x i16> %{{[0-9]+}}, <8 x i16> %{{[0-9]+}}, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4>
 
   res_vus = vec_xl_be(param_sll, &param_us);
-  // CHECK: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 16
+  // CHECK: load <8 x i16>, <8 x i16>* %{{[0-9]+}}, align 1
   // CHECK-LE: call <2 x double> @llvm.ppc.vsx.lxvd2x.be(i8* %{{[0-9]+}})
   // CHECK-LE: shufflevector <8 x i16> %{{[0-9]+}}, <8 x i16> %{{[0-9]+}}, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4>
 
   res_vi = vec_xl_be(param_sll, &param_i);
-  // CHECK: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 16
+  // CHECK: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 1
   // CHECK-LE: call <4 x i32> @llvm.ppc.vsx.lxvw4x.be(i8* %{{[0-9]+}})
 
   res_vui = vec_xl_be(param_sll, &param_ui);
-  // CHECK: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 16
+  // CHECK: load <4 x i32>, <4 x i32>* %{{[0-9]+}}, align 1
   // CHECK-LE: call <4 x i32> @llvm.ppc.vsx.lxvw4x.be(i8* %{{[0-9]+}})
 
   res_vf = vec_xl_be(param_sll, &param_f);
-  // CHECK: load <4 x float>, <4 x float>* %{{[0-9]+}}, align 16
+  // CHECK: load <4 x float>, <4 x float>* %{{[0-9]+}}, align 1
   // CHECK-LE: call <4 x i32> @llvm.ppc.vsx.lxvw4x.be(i8* %{{[0-9]+}})
 }
 
@@ -9465,34 +9465,34 @@
   // CHECK-LABEL: define void @test12
   // CHECK-LE-LABEL: define void @test12
   vec_xst_be(vsc, param_sll, &param_sc);
-  // CHECK: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 16
+  // CHECK: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 1
   // CHECK-LE: shufflevector <16 x i8> %{{[0-9]+}}, <16 x i8> %{{[0-9]+}}, <16 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0, i32 15, i32 14, i32 13, i32 12, i32 11, i32 10, i32 9, i32 8>
   // CHECK-LE: call void @llvm.ppc.vsx.stxvd2x.be(<2 x double> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
   vec_xst_be(vuc, param_sll, &param_uc);
-  // CHECK: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 16
+  // CHECK: store <16 x i8> %{{[0-9]+}}, <16 x i8>* %{{[0-9]+}}, align 1
   // CHECK-LE: shufflevector <16 x i8> %{{[0-9]+}}, <16 x i8> %{{[0-9]+}}, <16 x i32> <i32 7, i32 6, i32 5, i32 4, i32 3, i32 2, i32 1, i32 0, i32 15, i32 14, i32 13, i32 12, i32 11, i32 10, i32 9, i32 8>
   // CHECK-LE: call void @llvm.ppc.vsx.stxvd2x.be(<2 x double> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
   vec_xst_be(vs, param_sll, &param_s);
-  // CHECK: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 16
+  // CHECK: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 1
   // CHECK-LE: shufflevector <8 x i16> %{{[0-9]+}}, <8 x i16> %{{[0-9]+}}, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4>
   // CHECK-LE: call void @llvm.ppc.vsx.stxvd2x.be(<2 x double> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
   vec_xst_be(vus, param_sll, &param_us);
-  // CHECK: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 16
+  // CHECK: store <8 x i16> %{{[0-9]+}}, <8 x i16>* %{{[0-9]+}}, align 1
   // CHECK-LE: shufflevector <8 x i16> %{{[0-9]+}}, <8 x i16> %{{[0-9]+}}, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4>
   // CHECK-LE: call void @llvm.ppc.vsx.stxvd2x.be(<2 x double> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
   vec_xst_be(vi, param_sll, &param_i);
-  // CHECK: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 16
+  // CHECK: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 1
   // CHECK-LE: call void @llvm.ppc.vsx.stxvw4x.be(<4 x i32> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
   vec_xst_be(vui, param_sll, &param_ui);
-  // CHECK: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 16
+  // CHECK: store <4 x i32> %{{[0-9]+}}, <4 x i32>* %{{[0-9]+}}, align 1
   // CHECK-LE: call void @llvm.ppc.vsx.stxvw4x.be(<4 x i32> %{{[0-9]+}}, i8* %{{[0-9]+}})
 
   vec_xst_be(vf, param_sll, &param_f);
-  // CHECK: store <4 x float> %{{[0-9]+}}, <4 x float>* %{{[0-9]+}}, align 16
+  // CHECK: store <4 x float> %{{[0-9]+}}, <4 x float>* %{{[0-9]+}}, align 1
   // CHECK-LE: call void @llvm.ppc.vsx.stxvw4x.be(<4 x i32> %{{[0-9]+}}, i8* %{{[0-9]+}})
 }
Index: cfe/trunk/lib/Headers/altivec.h
===================================================================
--- cfe/trunk/lib/Headers/altivec.h
+++ cfe/trunk/lib/Headers/altivec.h
@@ -16355,67 +16355,82 @@
 
 /* vec_xl */
 
+typedef vector signed char unaligned_vec_schar __attribute__((aligned(1)));
+typedef vector unsigned char unaligned_vec_uchar __attribute__((aligned(1)));
+typedef vector signed short unaligned_vec_sshort __attribute__((aligned(1)));
+typedef vector unsigned short unaligned_vec_ushort __attribute__((aligned(1)));
+typedef vector signed int unaligned_vec_sint __attribute__((aligned(1)));
+typedef vector unsigned int unaligned_vec_uint __attribute__((aligned(1)));
+typedef vector float unaligned_vec_float __attribute__((aligned(1)));
+
 static inline __ATTRS_o_ai vector signed char vec_xl(signed long long __offset,
                                                      signed char *__ptr) {
-  return *(vector signed char *)(__ptr + __offset);
+  return *(unaligned_vec_schar *)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector unsigned char
 vec_xl(signed long long __offset, unsigned char *__ptr) {
-  return *(vector unsigned char *)(__ptr + __offset);
+  return *(unaligned_vec_uchar*)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector signed short vec_xl(signed long long __offset,
                                                       signed short *__ptr) {
-  return *(vector signed short *)(__ptr + __offset);
+  return *(unaligned_vec_sshort *)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector unsigned short
 vec_xl(signed long long __offset, unsigned short *__ptr) {
-  return *(vector unsigned short *)(__ptr + __offset);
+  return *(unaligned_vec_ushort *)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector signed int vec_xl(signed long long __offset,
                                                     signed int *__ptr) {
-  return *(vector signed int *)(__ptr + __offset);
+  return *(unaligned_vec_sint *)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector unsigned int vec_xl(signed long long __offset,
                                                       unsigned int *__ptr) {
-  return *(vector unsigned int *)(__ptr + __offset);
+  return *(unaligned_vec_uint *)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector float vec_xl(signed long long __offset,
                                                float *__ptr) {
-  return *(vector float *)(__ptr + __offset);
+  return *(unaligned_vec_float *)(__ptr + __offset);
 }
 
 #ifdef __VSX__
+typedef vector signed long long unaligned_vec_sll __attribute__((aligned(1)));
+typedef vector unsigned long long unaligned_vec_ull __attribute__((aligned(1)));
+typedef vector double unaligned_vec_double __attribute__((aligned(1)));
+
 static inline __ATTRS_o_ai vector signed long long
 vec_xl(signed long long __offset, signed long long *__ptr) {
-  return *(vector signed long long *)(__ptr + __offset);
+  return *(unaligned_vec_sll *)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector unsigned long long
 vec_xl(signed long long __offset, unsigned long long *__ptr) {
-  return *(vector unsigned long long *)(__ptr + __offset);
+  return *(unaligned_vec_ull *)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector double vec_xl(signed long long __offset,
                                                 double *__ptr) {
-  return *(vector double *)(__ptr + __offset);
+  return *(unaligned_vec_double *)(__ptr + __offset);
 }
 #endif
 
 #if defined(__POWER8_VECTOR__) && defined(__powerpc64__)
+typedef vector signed __int128 unaligned_vec_si128 __attribute__((aligned(1)));
+typedef vector unsigned __int128 unaligned_vec_ui128
+    __attribute__((aligned(1)));
 static inline __ATTRS_o_ai vector signed __int128
 vec_xl(signed long long __offset, signed __int128 *__ptr) {
-  return *(vector signed __int128 *)(__ptr + __offset);
+  return *(unaligned_vec_si128 *)(__ptr + __offset);
 }
 
 static inline __ATTRS_o_ai vector unsigned __int128
 vec_xl(signed long long __offset, unsigned __int128 *__ptr) {
-  return *(vector unsigned __int128 *)(__ptr + __offset);
+  return *(unaligned_vec_ui128 *)(__ptr + __offset);
 }
 #endif
 
@@ -16500,62 +16515,62 @@
 static inline __ATTRS_o_ai void vec_xst(vector signed char __vec,
                                         signed long long __offset,
                                         signed char *__ptr) {
-  *(vector signed char *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_schar *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector unsigned char __vec,
                                         signed long long __offset,
                                         unsigned char *__ptr) {
-  *(vector unsigned char *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_uchar *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector signed short __vec,
                                         signed long long __offset,
                                         signed short *__ptr) {
-  *(vector signed short *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_sshort *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector unsigned short __vec,
                                         signed long long __offset,
                                         unsigned short *__ptr) {
-  *(vector unsigned short *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_ushort *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector signed int __vec,
                                         signed long long __offset,
                                         signed int *__ptr) {
-  *(vector signed int *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_sint *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector unsigned int __vec,
                                         signed long long __offset,
                                         unsigned int *__ptr) {
-  *(vector unsigned int *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_uint *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector float __vec,
                                         signed long long __offset,
                                         float *__ptr) {
-  *(vector float *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_float *)(__ptr + __offset) = __vec;
 }
 
 #ifdef __VSX__
 static inline __ATTRS_o_ai void vec_xst(vector signed long long __vec,
                                         signed long long __offset,
                                         signed long long *__ptr) {
-  *(vector signed long long *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_sll *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector unsigned long long __vec,
                                         signed long long __offset,
                                         unsigned long long *__ptr) {
-  *(vector unsigned long long *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_ull *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector double __vec,
                                         signed long long __offset,
                                         double *__ptr) {
-  *(vector double *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_double *)(__ptr + __offset) = __vec;
 }
 #endif
 
@@ -16563,13 +16578,13 @@
 static inline __ATTRS_o_ai void vec_xst(vector signed __int128 __vec,
                                         signed long long __offset,
                                         signed __int128 *__ptr) {
-  *(vector signed __int128 *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_si128 *)(__ptr + __offset) = __vec;
 }
 
 static inline __ATTRS_o_ai void vec_xst(vector unsigned __int128 __vec,
                                         signed long long __offset,
                                         unsigned __int128 *__ptr) {
-  *(vector unsigned __int128 *)(__ptr + __offset) = __vec;
+  *(unaligned_vec_ui128 *)(__ptr + __offset) = __vec;
 }
 #endif
 

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