[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/AArch64/arm64-code-model-large-abs.ll b/llvm/test/CodeGen/AArch64/arm64-code-model-large-abs.ll
index 264da2d..9f50fea 100644
--- a/llvm/test/CodeGen/AArch64/arm64-code-model-large-abs.ll
+++ b/llvm/test/CodeGen/AArch64/arm64-code-model-large-abs.ll
@@ -18,7 +18,7 @@
 
 define i8 @global_i8() {
 ; CHECK-LABEL: global_i8:
-  %val = load i8* @var8
+  %val = load i8, i8* @var8
   ret i8 %val
 ; CHECK: movz x[[ADDR_REG:[0-9]+]], #:abs_g3:var8
 ; CHECK: movk x[[ADDR_REG]], #:abs_g2_nc:var8
@@ -29,7 +29,7 @@
 
 define i16 @global_i16() {
 ; CHECK-LABEL: global_i16:
-  %val = load i16* @var16
+  %val = load i16, i16* @var16
   ret i16 %val
 ; CHECK: movz x[[ADDR_REG:[0-9]+]], #:abs_g3:var16
 ; CHECK: movk x[[ADDR_REG]], #:abs_g2_nc:var16
@@ -40,7 +40,7 @@
 
 define i32 @global_i32() {
 ; CHECK-LABEL: global_i32:
-  %val = load i32* @var32
+  %val = load i32, i32* @var32
   ret i32 %val
 ; CHECK: movz x[[ADDR_REG:[0-9]+]], #:abs_g3:var32
 ; CHECK: movk x[[ADDR_REG]], #:abs_g2_nc:var32
@@ -51,7 +51,7 @@
 
 define i64 @global_i64() {
 ; CHECK-LABEL: global_i64:
-  %val = load i64* @var64
+  %val = load i64, i64* @var64
   ret i64 %val
 ; CHECK: movz x[[ADDR_REG:[0-9]+]], #:abs_g3:var64
 ; CHECK: movk x[[ADDR_REG]], #:abs_g2_nc:var64