[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/PowerPC/floatPSA.ll b/llvm/test/CodeGen/PowerPC/floatPSA.ll
index f14c736..cff95d5 100644
--- a/llvm/test/CodeGen/PowerPC/floatPSA.ll
+++ b/llvm/test/CodeGen/PowerPC/floatPSA.ll
@@ -37,7 +37,7 @@
   store float %l, float* %l.addr, align 4
   store float %m, float* %m.addr, align 4
   store float %n, float* %n.addr, align 4
-  %0 = load float* %n.addr, align 4
+  %0 = load float, float* %n.addr, align 4
   ret float %0
 }
 
@@ -73,20 +73,20 @@
   store float 1.200000e+01, float* %l, align 4
   store float 1.300000e+01, float* %m, align 4
   store float 1.400000e+01, float* %n, align 4
-  %0 = load float* %a, align 4
-  %1 = load float* %b, align 4
-  %2 = load float* %c, align 4
-  %3 = load float* %d, align 4
-  %4 = load float* %e, align 4
-  %5 = load float* %f, align 4
-  %6 = load float* %g, align 4
-  %7 = load float* %h, align 4
-  %8 = load float* %i, align 4
-  %9 = load float* %j, align 4
-  %10 = load float* %k, align 4
-  %11 = load float* %l, align 4
-  %12 = load float* %m, align 4
-  %13 = load float* %n, align 4
+  %0 = load float, float* %a, align 4
+  %1 = load float, float* %b, align 4
+  %2 = load float, float* %c, align 4
+  %3 = load float, float* %d, align 4
+  %4 = load float, float* %e, align 4
+  %5 = load float, float* %f, align 4
+  %6 = load float, float* %g, align 4
+  %7 = load float, float* %h, align 4
+  %8 = load float, float* %i, align 4
+  %9 = load float, float* %j, align 4
+  %10 = load float, float* %k, align 4
+  %11 = load float, float* %l, align 4
+  %12 = load float, float* %m, align 4
+  %13 = load float, float* %n, align 4
   %call = call float @bar(float %0, float %1, float %2, float %3, float %4, float %5, float %6, float %7, float %8, float %9, float %10, float %11, float %12, float %13)
   ret float %call
 }