[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-cmp-23.ll b/llvm/test/CodeGen/SystemZ/int-cmp-23.ll
index b3c8e52..df6b626 100644
--- a/llvm/test/CodeGen/SystemZ/int-cmp-23.ll
+++ b/llvm/test/CodeGen/SystemZ/int-cmp-23.ll
@@ -9,7 +9,7 @@
 ; CHECK-NEXT: jh
 ; CHECK: ldr %f0, %f2
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %cond = icmp ugt i16 %val, 1
   %res = select i1 %cond, double %a, double %b
   ret double %res
@@ -22,7 +22,7 @@
 ; CHECK-NEXT: jl
 ; CHECK: ldr %f0, %f2
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %cond = icmp ult i16 %val, 65534
   %res = select i1 %cond, double %a, double %b
   ret double %res
@@ -36,7 +36,7 @@
 ; CHECK: ldr %f0, %f2
 ; CHECK: br %r14
   %ptr = getelementptr i16, i16 *%base, i64 2047
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %cond = icmp ugt i16 %val, 1
   %res = select i1 %cond, double %a, double %b
   ret double %res
@@ -51,7 +51,7 @@
 ; CHECK: ldr %f0, %f2
 ; CHECK: br %r14
   %ptr = getelementptr i16, i16 *%base, i64 2048
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %cond = icmp ugt i16 %val, 1
   %res = select i1 %cond, double %a, double %b
   ret double %res
@@ -66,7 +66,7 @@
 ; CHECK: ldr %f0, %f2
 ; CHECK: br %r14
   %ptr = getelementptr i16, i16 *%base, i64 -1
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %cond = icmp ugt i16 %val, 1
   %res = select i1 %cond, double %a, double %b
   ret double %res
@@ -82,7 +82,7 @@
 ; CHECK: br %r14
   %add = add i64 %base, %index
   %ptr = inttoptr i64 %add to i16 *
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %cond = icmp ugt i16 %val, 1
   %res = select i1 %cond, double %a, double %b
   ret double %res