[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/Thumb2/thumb2-ldr_ext.ll b/llvm/test/CodeGen/Thumb2/thumb2-ldr_ext.ll
index b50b333..a911775 100644
--- a/llvm/test/CodeGen/Thumb2/thumb2-ldr_ext.ll
+++ b/llvm/test/CodeGen/Thumb2/thumb2-ldr_ext.ll
@@ -1,25 +1,25 @@
 ; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s
 
 define i32 @test1(i8* %v.pntr.s0.u1) {
-    %tmp.u = load i8* %v.pntr.s0.u1
+    %tmp.u = load i8, i8* %v.pntr.s0.u1
     %tmp1.s = zext i8 %tmp.u to i32
     ret i32 %tmp1.s
 }
 
 define i32 @test2(i16* %v.pntr.s0.u1) {
-    %tmp.u = load i16* %v.pntr.s0.u1
+    %tmp.u = load i16, i16* %v.pntr.s0.u1
     %tmp1.s = zext i16 %tmp.u to i32
     ret i32 %tmp1.s
 }
 
 define i32 @test3(i8* %v.pntr.s1.u0) {
-    %tmp.s = load i8* %v.pntr.s1.u0
+    %tmp.s = load i8, i8* %v.pntr.s1.u0
     %tmp1.s = sext i8 %tmp.s to i32
     ret i32 %tmp1.s
 }
 
 define i32 @test4() {
-    %tmp.s = load i16* null
+    %tmp.s = load i16, i16* null
     %tmp1.s = sext i16 %tmp.s to i32
     ret i32 %tmp1.s
 }