[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/fp-add-02.ll b/llvm/test/CodeGen/SystemZ/fp-add-02.ll
index 1718f7d..07c7462 100644
--- a/llvm/test/CodeGen/SystemZ/fp-add-02.ll
+++ b/llvm/test/CodeGen/SystemZ/fp-add-02.ll
@@ -18,7 +18,7 @@
 ; CHECK-LABEL: f2:
 ; CHECK: adb %f0, 0(%r2)
 ; CHECK: br %r14
-  %f2 = load double *%ptr
+  %f2 = load double , double *%ptr
   %res = fadd double %f1, %f2
   ret double %res
 }
@@ -29,7 +29,7 @@
 ; CHECK: adb %f0, 4088(%r2)
 ; CHECK: br %r14
   %ptr = getelementptr double, double *%base, i64 511
-  %f2 = load double *%ptr
+  %f2 = load double , double *%ptr
   %res = fadd double %f1, %f2
   ret double %res
 }
@@ -42,7 +42,7 @@
 ; CHECK: adb %f0, 0(%r2)
 ; CHECK: br %r14
   %ptr = getelementptr double, double *%base, i64 512
-  %f2 = load double *%ptr
+  %f2 = load double , double *%ptr
   %res = fadd double %f1, %f2
   ret double %res
 }
@@ -54,7 +54,7 @@
 ; CHECK: adb %f0, 0(%r2)
 ; CHECK: br %r14
   %ptr = getelementptr double, double *%base, i64 -1
-  %f2 = load double *%ptr
+  %f2 = load double , double *%ptr
   %res = fadd double %f1, %f2
   ret double %res
 }
@@ -67,7 +67,7 @@
 ; CHECK: br %r14
   %ptr1 = getelementptr double, double *%base, i64 %index
   %ptr2 = getelementptr double, double *%ptr1, i64 100
-  %f2 = load double *%ptr2
+  %f2 = load double , double *%ptr2
   %res = fadd double %f1, %f2
   ret double %res
 }
@@ -89,17 +89,17 @@
   %ptr9 = getelementptr double, double *%ptr0, i64 18
   %ptr10 = getelementptr double, double *%ptr0, i64 20
 
-  %val0 = load double *%ptr0
-  %val1 = load double *%ptr1
-  %val2 = load double *%ptr2
-  %val3 = load double *%ptr3
-  %val4 = load double *%ptr4
-  %val5 = load double *%ptr5
-  %val6 = load double *%ptr6
-  %val7 = load double *%ptr7
-  %val8 = load double *%ptr8
-  %val9 = load double *%ptr9
-  %val10 = load double *%ptr10
+  %val0 = load double , double *%ptr0
+  %val1 = load double , double *%ptr1
+  %val2 = load double , double *%ptr2
+  %val3 = load double , double *%ptr3
+  %val4 = load double , double *%ptr4
+  %val5 = load double , double *%ptr5
+  %val6 = load double , double *%ptr6
+  %val7 = load double , double *%ptr7
+  %val8 = load double , double *%ptr8
+  %val9 = load double , double *%ptr9
+  %val10 = load double , double *%ptr10
 
   %ret = call double @foo()