[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/Mips/msa/inline-asm.ll b/llvm/test/CodeGen/Mips/msa/inline-asm.ll
index 4a34273..85da87b 100644
--- a/llvm/test/CodeGen/Mips/msa/inline-asm.ll
+++ b/llvm/test/CodeGen/Mips/msa/inline-asm.ll
@@ -16,7 +16,7 @@
 define void @test2() nounwind {
 entry:
   ; CHECK-LABEL: test2:
-  %0 = load <4 x i32>* @v4i32_r
+  %0 = load <4 x i32>, <4 x i32>* @v4i32_r
   %1 = call <4 x i32> asm "addvi.w ${0:w}, ${1:w}, 1", "=f,f"(<4 x i32> %0)
   ; CHECK: addvi.w $w{{[1-3]?[0-9]}}, $w{{[1-3]?[0-9]}}, 1
   store <4 x i32> %1, <4 x i32>* @v4i32_r
@@ -26,7 +26,7 @@
 define void @test3() nounwind {
 entry:
   ; CHECK-LABEL: test3:
-  %0 = load <4 x i32>* @v4i32_r
+  %0 = load <4 x i32>, <4 x i32>* @v4i32_r
   %1 = call <4 x i32> asm sideeffect "addvi.w ${0:w}, ${1:w}, 1", "=f,f,~{$w0}"(<4 x i32> %0)
   ; CHECK: addvi.w $w{{([1-9]|[1-3][0-9])}}, $w{{([1-9]|[1-3][0-9])}}, 1
   store <4 x i32> %1, <4 x i32>* @v4i32_r