[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/Hexagon/memops3.ll b/llvm/test/CodeGen/Hexagon/memops3.ll
index 1e80baf..6cd7fdc 100644
--- a/llvm/test/CodeGen/Hexagon/memops3.ll
+++ b/llvm/test/CodeGen/Hexagon/memops3.ll
@@ -6,7 +6,7 @@
 entry:
 ; CHECK:  memb(r{{[0-9]+}}{{ *}}+{{ *}}#10){{ *}}-={{ *}}#1
   %add.ptr = getelementptr inbounds i8, i8* %p, i32 10
-  %0 = load i8* %add.ptr, align 1
+  %0 = load i8, i8* %add.ptr, align 1
   %conv = zext i8 %0 to i32
   %sub = add nsw i32 %conv, 255
   %conv1 = trunc i32 %sub to i8
@@ -19,7 +19,7 @@
 ; CHECK:  memb(r{{[0-9]+}}{{ *}}+{{ *}}#10){{ *}}-={{ *}}#1
   %add.ptr.sum = add i32 %i, 10
   %add.ptr1 = getelementptr inbounds i8, i8* %p, i32 %add.ptr.sum
-  %0 = load i8* %add.ptr1, align 1
+  %0 = load i8, i8* %add.ptr1, align 1
   %conv = zext i8 %0 to i32
   %sub = add nsw i32 %conv, 255
   %conv2 = trunc i32 %sub to i8