[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/R600/add_i64.ll b/llvm/test/CodeGen/R600/add_i64.ll
index 1e1065a..8346add 100644
--- a/llvm/test/CodeGen/R600/add_i64.ll
+++ b/llvm/test/CodeGen/R600/add_i64.ll
@@ -10,8 +10,8 @@
   %tid = call i32 @llvm.r600.read.tidig.x() readnone
   %a_ptr = getelementptr i64, i64 addrspace(1)* %inA, i32 %tid
   %b_ptr = getelementptr i64, i64 addrspace(1)* %inB, i32 %tid
-  %a = load i64 addrspace(1)* %a_ptr
-  %b = load i64 addrspace(1)* %b_ptr
+  %a = load i64, i64 addrspace(1)* %a_ptr
+  %b = load i64, i64 addrspace(1)* %b_ptr
   %result = add i64 %a, %b
   store i64 %result, i64 addrspace(1)* %out
   ret void
@@ -22,7 +22,7 @@
 ; SI: v_add_i32
 ; SI: v_addc_u32
 define void @sgpr_operand(i64 addrspace(1)* noalias %out, i64 addrspace(1)* noalias %in, i64 addrspace(1)* noalias %in_bar, i64 %a) {
-  %foo = load i64 addrspace(1)* %in, align 8
+  %foo = load i64, i64 addrspace(1)* %in, align 8
   %result = add i64 %foo, %a
   store i64 %result, i64 addrspace(1)* %out
   ret void
@@ -35,7 +35,7 @@
 ; SI: v_add_i32
 ; SI: v_addc_u32
 define void @sgpr_operand_reversed(i64 addrspace(1)* noalias %out, i64 addrspace(1)* noalias %in, i64 %a) {
-  %foo = load i64 addrspace(1)* %in, align 8
+  %foo = load i64, i64 addrspace(1)* %in, align 8
   %result = add i64 %a, %foo
   store i64 %result, i64 addrspace(1)* %out
   ret void
@@ -62,8 +62,8 @@
   %tid = call i32 @llvm.r600.read.tidig.x() readnone
   %a_ptr = getelementptr <2 x i64>, <2 x i64> addrspace(1)* %inA, i32 %tid
   %b_ptr = getelementptr <2 x i64>, <2 x i64> addrspace(1)* %inB, i32 %tid
-  %a = load <2 x i64> addrspace(1)* %a_ptr
-  %b = load <2 x i64> addrspace(1)* %b_ptr
+  %a = load <2 x i64>, <2 x i64> addrspace(1)* %a_ptr
+  %b = load <2 x i64>, <2 x i64> addrspace(1)* %b_ptr
   %result = add <2 x i64> %a, %b
   store <2 x i64> %result, <2 x i64> addrspace(1)* %out
   ret void