[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/R600/schedule-global-loads.ll b/llvm/test/CodeGen/R600/schedule-global-loads.ll
index 3763237..3f728fd 100644
--- a/llvm/test/CodeGen/R600/schedule-global-loads.ll
+++ b/llvm/test/CodeGen/R600/schedule-global-loads.ll
@@ -14,9 +14,9 @@
 ; SI: buffer_store_dword [[REG0]]
 ; SI: buffer_store_dword [[REG1]]
 define void @cluster_global_arg_loads(i32 addrspace(1)* %out0, i32 addrspace(1)* %out1, i32 addrspace(1)* %ptr) #0 {
-  %load0 = load i32 addrspace(1)* %ptr, align 4
+  %load0 = load i32, i32 addrspace(1)* %ptr, align 4
   %gep = getelementptr i32, i32 addrspace(1)* %ptr, i32 1
-  %load1 = load i32 addrspace(1)* %gep, align 4
+  %load1 = load i32, i32 addrspace(1)* %gep, align 4
   store i32 %load0, i32 addrspace(1)* %out0, align 4
   store i32 %load1, i32 addrspace(1)* %out1, align 4
   ret void
@@ -30,8 +30,8 @@
 define void @same_base_ptr_crash(i32 addrspace(1)* %out, i32 addrspace(1)* %in, i32 %offset) {
 entry:
   %out1 = getelementptr i32, i32 addrspace(1)* %out, i32 %offset
-  %tmp0 = load i32 addrspace(1)* %out
-  %tmp1 = load i32 addrspace(1)* %out1
+  %tmp0 = load i32, i32 addrspace(1)* %out
+  %tmp1 = load i32, i32 addrspace(1)* %out1
   %tmp2 = add i32 %tmp0, %tmp1
   store i32 %tmp2, i32 addrspace(1)* %out
   ret void