[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/SystemZ/frame-17.ll b/llvm/test/CodeGen/SystemZ/frame-17.ll
index 97cf83d..485297a 100644
--- a/llvm/test/CodeGen/SystemZ/frame-17.ll
+++ b/llvm/test/CodeGen/SystemZ/frame-17.ll
@@ -31,23 +31,23 @@
 ; CHECK: ld %f15, 168(%r15)
 ; CHECK: aghi %r15, 232
 ; CHECK: br %r14
-  %l0 = load volatile float *%ptr
-  %l1 = load volatile float *%ptr
-  %l2 = load volatile float *%ptr
-  %l3 = load volatile float *%ptr
-  %l4 = load volatile float *%ptr
-  %l5 = load volatile float *%ptr
-  %l6 = load volatile float *%ptr
-  %l7 = load volatile float *%ptr
-  %l8 = load volatile float *%ptr
-  %l9 = load volatile float *%ptr
-  %l10 = load volatile float *%ptr
-  %l11 = load volatile float *%ptr
-  %l12 = load volatile float *%ptr
-  %l13 = load volatile float *%ptr
-  %l14 = load volatile float *%ptr
-  %l15 = load volatile float *%ptr
-  %lx = load volatile float *%ptr
+  %l0 = load volatile float , float *%ptr
+  %l1 = load volatile float , float *%ptr
+  %l2 = load volatile float , float *%ptr
+  %l3 = load volatile float , float *%ptr
+  %l4 = load volatile float , float *%ptr
+  %l5 = load volatile float , float *%ptr
+  %l6 = load volatile float , float *%ptr
+  %l7 = load volatile float , float *%ptr
+  %l8 = load volatile float , float *%ptr
+  %l9 = load volatile float , float *%ptr
+  %l10 = load volatile float , float *%ptr
+  %l11 = load volatile float , float *%ptr
+  %l12 = load volatile float , float *%ptr
+  %l13 = load volatile float , float *%ptr
+  %l14 = load volatile float , float *%ptr
+  %l15 = load volatile float , float *%ptr
+  %lx = load volatile float , float *%ptr
   store volatile float %lx, float *%ptr
   store volatile float %l15, float *%ptr
   store volatile float %l14, float *%ptr
@@ -92,23 +92,23 @@
 ; CHECK: ld %f15, 168(%r15)
 ; CHECK: aghi %r15, 232
 ; CHECK: br %r14
-  %l0 = load volatile double *%ptr
-  %l1 = load volatile double *%ptr
-  %l2 = load volatile double *%ptr
-  %l3 = load volatile double *%ptr
-  %l4 = load volatile double *%ptr
-  %l5 = load volatile double *%ptr
-  %l6 = load volatile double *%ptr
-  %l7 = load volatile double *%ptr
-  %l8 = load volatile double *%ptr
-  %l9 = load volatile double *%ptr
-  %l10 = load volatile double *%ptr
-  %l11 = load volatile double *%ptr
-  %l12 = load volatile double *%ptr
-  %l13 = load volatile double *%ptr
-  %l14 = load volatile double *%ptr
-  %l15 = load volatile double *%ptr
-  %lx = load volatile double *%ptr
+  %l0 = load volatile double , double *%ptr
+  %l1 = load volatile double , double *%ptr
+  %l2 = load volatile double , double *%ptr
+  %l3 = load volatile double , double *%ptr
+  %l4 = load volatile double , double *%ptr
+  %l5 = load volatile double , double *%ptr
+  %l6 = load volatile double , double *%ptr
+  %l7 = load volatile double , double *%ptr
+  %l8 = load volatile double , double *%ptr
+  %l9 = load volatile double , double *%ptr
+  %l10 = load volatile double , double *%ptr
+  %l11 = load volatile double , double *%ptr
+  %l12 = load volatile double , double *%ptr
+  %l13 = load volatile double , double *%ptr
+  %l14 = load volatile double , double *%ptr
+  %l15 = load volatile double , double *%ptr
+  %lx = load volatile double , double *%ptr
   store volatile double %lx, double *%ptr
   store volatile double %l15, double *%ptr
   store volatile double %l14, double *%ptr
@@ -155,15 +155,15 @@
 ; CHECK: ld %f15, 176(%r15)
 ; CHECK: aghi %r15, 240
 ; CHECK: br %r14
-  %l0 = load volatile fp128 *%ptr
-  %l1 = load volatile fp128 *%ptr
-  %l4 = load volatile fp128 *%ptr
-  %l5 = load volatile fp128 *%ptr
-  %l8 = load volatile fp128 *%ptr
-  %l9 = load volatile fp128 *%ptr
-  %l12 = load volatile fp128 *%ptr
-  %l13 = load volatile fp128 *%ptr
-  %lx = load volatile fp128 *%ptr
+  %l0 = load volatile fp128 , fp128 *%ptr
+  %l1 = load volatile fp128 , fp128 *%ptr
+  %l4 = load volatile fp128 , fp128 *%ptr
+  %l5 = load volatile fp128 , fp128 *%ptr
+  %l8 = load volatile fp128 , fp128 *%ptr
+  %l9 = load volatile fp128 , fp128 *%ptr
+  %l12 = load volatile fp128 , fp128 *%ptr
+  %l13 = load volatile fp128 , fp128 *%ptr
+  %lx = load volatile fp128 , fp128 *%ptr
   store volatile fp128 %lx, fp128 *%ptr
   store volatile fp128 %l13, fp128 *%ptr
   store volatile fp128 %l12, fp128 *%ptr