[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

llvm-svn: 230794
diff --git a/llvm/test/CodeGen/NVPTX/misaligned-vector-ldst.ll b/llvm/test/CodeGen/NVPTX/misaligned-vector-ldst.ll
index 90c9c43..2ad72b0 100644
--- a/llvm/test/CodeGen/NVPTX/misaligned-vector-ldst.ll
+++ b/llvm/test/CodeGen/NVPTX/misaligned-vector-ldst.ll
@@ -10,7 +10,7 @@
 ; CHECK-NOT: ld.f32
 ; CHECK: ld.u8
   %cast = bitcast i8* %p1 to <4 x float>*
-  %r = load <4 x float>* %cast, align 1
+  %r = load <4 x float>, <4 x float>* %cast, align 1
   ret <4 x float> %r
 }
 
@@ -20,7 +20,7 @@
 ; CHECK-NOT: ld.v2
 ; CHECK: ld.f32
   %cast = bitcast i8* %p1 to <4 x float>*
-  %r = load <4 x float>* %cast, align 4
+  %r = load <4 x float>, <4 x float>* %cast, align 4
   ret <4 x float> %r
 }
 
@@ -29,7 +29,7 @@
 ; CHECK-NOT: ld.v4
 ; CHECK: ld.v2
   %cast = bitcast i8* %p1 to <4 x float>*
-  %r = load <4 x float>* %cast, align 8
+  %r = load <4 x float>, <4 x float>* %cast, align 8
   ret <4 x float> %r
 }
 
@@ -37,7 +37,7 @@
 define <4 x float> @t4(i8* %p1) {
 ; CHECK: ld.v4
   %cast = bitcast i8* %p1 to <4 x float>*
-  %r = load <4 x float>* %cast, align 16
+  %r = load <4 x float>, <4 x float>* %cast, align 16
   ret <4 x float> %r
 }