[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/ctrloop-lt.ll b/llvm/test/CodeGen/PowerPC/ctrloop-lt.ll
index d1ab376..fa910aa 100644
--- a/llvm/test/CodeGen/PowerPC/ctrloop-lt.ll
+++ b/llvm/test/CodeGen/PowerPC/ctrloop-lt.ll
@@ -19,7 +19,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 8531, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -49,7 +49,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 9152, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -79,7 +79,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 18851, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -108,7 +108,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 25466, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -137,7 +137,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 9295, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -166,7 +166,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -195,7 +195,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -224,7 +224,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -253,7 +253,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -282,7 +282,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -311,7 +311,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -340,7 +340,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -369,7 +369,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -398,7 +398,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8
@@ -427,7 +427,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ %a, %for.body.lr.ph ], [ %inc, %for.body ]
   %arrayidx = getelementptr inbounds i8, i8* %p, i32 %i.04
-  %0 = load i8* %arrayidx, align 1
+  %0 = load i8, i8* %arrayidx, align 1
   %conv = zext i8 %0 to i32
   %add = add nsw i32 %conv, 1
   %conv1 = trunc i32 %add to i8