[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/SystemZ/int-conv-07.ll b/llvm/test/CodeGen/SystemZ/int-conv-07.ll
index ed7c08b..5e989e4 100644
--- a/llvm/test/CodeGen/SystemZ/int-conv-07.ll
+++ b/llvm/test/CodeGen/SystemZ/int-conv-07.ll
@@ -27,7 +27,7 @@
 ; CHECK-LABEL: f3:
 ; CHECK: lgh %r2, 0(%r2)
 ; CHECK: br %r14
-  %half = load i16 *%src
+  %half = load i16 , i16 *%src
   %ext = sext i16 %half to i64
   ret i64 %ext
 }
@@ -38,7 +38,7 @@
 ; CHECK: lgh %r2, 524286(%r2)
 ; CHECK: br %r14
   %ptr = getelementptr i16, i16 *%src, i64 262143
-  %half = load i16 *%ptr
+  %half = load i16 , i16 *%ptr
   %ext = sext i16 %half to i64
   ret i64 %ext
 }
@@ -51,7 +51,7 @@
 ; CHECK: lgh %r2, 0(%r2)
 ; CHECK: br %r14
   %ptr = getelementptr i16, i16 *%src, i64 262144
-  %half = load i16 *%ptr
+  %half = load i16 , i16 *%ptr
   %ext = sext i16 %half to i64
   ret i64 %ext
 }
@@ -62,7 +62,7 @@
 ; CHECK: lgh %r2, -2(%r2)
 ; CHECK: br %r14
   %ptr = getelementptr i16, i16 *%src, i64 -1
-  %half = load i16 *%ptr
+  %half = load i16 , i16 *%ptr
   %ext = sext i16 %half to i64
   ret i64 %ext
 }
@@ -73,7 +73,7 @@
 ; CHECK: lgh %r2, -524288(%r2)
 ; CHECK: br %r14
   %ptr = getelementptr i16, i16 *%src, i64 -262144
-  %half = load i16 *%ptr
+  %half = load i16 , i16 *%ptr
   %ext = sext i16 %half to i64
   ret i64 %ext
 }
@@ -86,7 +86,7 @@
 ; CHECK: lgh %r2, 0(%r2)
 ; CHECK: br %r14
   %ptr = getelementptr i16, i16 *%src, i64 -262145
-  %half = load i16 *%ptr
+  %half = load i16 , i16 *%ptr
   %ext = sext i16 %half to i64
   ret i64 %ext
 }
@@ -99,7 +99,7 @@
   %add1 = add i64 %src, %index
   %add2 = add i64 %add1, 524287
   %ptr = inttoptr i64 %add2 to i16 *
-  %half = load i16 *%ptr
+  %half = load i16 , i16 *%ptr
   %ext = sext i16 %half to i64
   ret i64 %ext
 }
@@ -110,22 +110,22 @@
 ; CHECK-LABEL: f10:
 ; CHECK: lgh {{%r[0-9]+}}, 166(%r15)
 ; CHECK: br %r14
-  %val0 = load volatile i64 *%ptr
-  %val1 = load volatile i64 *%ptr
-  %val2 = load volatile i64 *%ptr
-  %val3 = load volatile i64 *%ptr
-  %val4 = load volatile i64 *%ptr
-  %val5 = load volatile i64 *%ptr
-  %val6 = load volatile i64 *%ptr
-  %val7 = load volatile i64 *%ptr
-  %val8 = load volatile i64 *%ptr
-  %val9 = load volatile i64 *%ptr
-  %val10 = load volatile i64 *%ptr
-  %val11 = load volatile i64 *%ptr
-  %val12 = load volatile i64 *%ptr
-  %val13 = load volatile i64 *%ptr
-  %val14 = load volatile i64 *%ptr
-  %val15 = load volatile i64 *%ptr
+  %val0 = load volatile i64 , i64 *%ptr
+  %val1 = load volatile i64 , i64 *%ptr
+  %val2 = load volatile i64 , i64 *%ptr
+  %val3 = load volatile i64 , i64 *%ptr
+  %val4 = load volatile i64 , i64 *%ptr
+  %val5 = load volatile i64 , i64 *%ptr
+  %val6 = load volatile i64 , i64 *%ptr
+  %val7 = load volatile i64 , i64 *%ptr
+  %val8 = load volatile i64 , i64 *%ptr
+  %val9 = load volatile i64 , i64 *%ptr
+  %val10 = load volatile i64 , i64 *%ptr
+  %val11 = load volatile i64 , i64 *%ptr
+  %val12 = load volatile i64 , i64 *%ptr
+  %val13 = load volatile i64 , i64 *%ptr
+  %val14 = load volatile i64 , i64 *%ptr
+  %val15 = load volatile i64 , i64 *%ptr
 
   %trunc0 = trunc i64 %val0 to i16
   %trunc1 = trunc i64 %val1 to i16