[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-27.ll b/llvm/test/CodeGen/SystemZ/int-cmp-27.ll
index 3102f5c..9a503c9 100644
--- a/llvm/test/CodeGen/SystemZ/int-cmp-27.ll
+++ b/llvm/test/CodeGen/SystemZ/int-cmp-27.ll
@@ -9,7 +9,7 @@
 ; CHECK: clhhsi 0(%r2), 0
 ; CHECK-NEXT: jlh
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = zext i16 %val to i32
   %cond = icmp ne i32 %ext, 0
   %res = select i1 %cond, double %a, double %b
@@ -22,7 +22,7 @@
 ; CHECK: clhhsi 0(%r2), 65535
 ; CHECK-NEXT: jlh
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = zext i16 %val to i32
   %cond = icmp ne i32 %ext, 65535
   %res = select i1 %cond, double %a, double %b
@@ -34,7 +34,7 @@
 ; CHECK-LABEL: f3:
 ; CHECK-NOT: clhhsi
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = zext i16 %val to i32
   %cond = icmp ne i32 %ext, 65536
   %res = select i1 %cond, double %a, double %b
@@ -47,7 +47,7 @@
 ; CHECK-LABEL: f4:
 ; CHECK-NOT: clhhsi
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = zext i16 %val to i32
   %cond = icmp ne i32 %ext, -1
   %res = select i1 %cond, double %a, double %b
@@ -60,7 +60,7 @@
 ; CHECK: clhhsi 0(%r2), 0
 ; CHECK-NEXT: jlh
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = sext i16 %val to i32
   %cond = icmp ne i32 %ext, 0
   %res = select i1 %cond, double %a, double %b
@@ -73,7 +73,7 @@
 ; CHECK: clhhsi 0(%r2), 32767
 ; CHECK-NEXT: jlh
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = sext i16 %val to i32
   %cond = icmp ne i32 %ext, 32767
   %res = select i1 %cond, double %a, double %b
@@ -86,7 +86,7 @@
 ; CHECK-LABEL: f7:
 ; CHECK-NOT: clhhsi
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = sext i16 %val to i32
   %cond = icmp ne i32 %ext, 32768
   %res = select i1 %cond, double %a, double %b
@@ -99,7 +99,7 @@
 ; CHECK: clhhsi 0(%r2), 65535
 ; CHECK-NEXT: jlh
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = sext i16 %val to i32
   %cond = icmp ne i32 %ext, -1
   %res = select i1 %cond, double %a, double %b
@@ -112,7 +112,7 @@
 ; CHECK: clhhsi 0(%r2), 32768
 ; CHECK-NEXT: jlh
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = sext i16 %val to i32
   %cond = icmp ne i32 %ext, -32768
   %res = select i1 %cond, double %a, double %b
@@ -125,7 +125,7 @@
 ; CHECK-LABEL: f10:
 ; CHECK-NOT: clhhsi
 ; CHECK: br %r14
-  %val = load i16 *%ptr
+  %val = load i16 , i16 *%ptr
   %ext = sext i16 %val to i32
   %cond = icmp ne i32 %ext, -32769
   %res = select i1 %cond, double %a, double %b