[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/ARM/ifcvt11.ll b/llvm/test/CodeGen/ARM/ifcvt11.ll
index a02dff0..eae41e2 100644
--- a/llvm/test/CodeGen/ARM/ifcvt11.ll
+++ b/llvm/test/CodeGen/ARM/ifcvt11.ll
@@ -23,8 +23,8 @@
   %n.08 = phi i32 [ 0, %bb.nph ], [ %10, %bb4 ]
   %scevgep10 = getelementptr inbounds %struct.xyz_t, %struct.xyz_t* %p, i32 %n.08, i32 0
   %scevgep11 = getelementptr %struct.xyz_t, %struct.xyz_t* %p, i32 %n.08, i32 1
-  %3 = load double* %scevgep10, align 4
-  %4 = load double* %scevgep11, align 4
+  %3 = load double, double* %scevgep10, align 4
+  %4 = load double, double* %scevgep11, align 4
   %5 = fcmp uge double %3, %4
   br i1 %5, label %bb3, label %bb1
 
@@ -35,7 +35,7 @@
 ; CHECK: vcmpe.f64
 ; CHECK: vmrs APSR_nzcv, fpscr
   %scevgep12 = getelementptr %struct.xyz_t, %struct.xyz_t* %p, i32 %n.08, i32 2
-  %6 = load double* %scevgep12, align 4
+  %6 = load double, double* %scevgep12, align 4
   %7 = fcmp uge double %3, %6
   br i1 %7, label %bb3, label %bb2