[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/Hexagon/hwloop-le.ll b/llvm/test/CodeGen/Hexagon/hwloop-le.ll
index 984a263..85a1b3d 100644
--- a/llvm/test/CodeGen/Hexagon/hwloop-le.ll
+++ b/llvm/test/CodeGen/Hexagon/hwloop-le.ll
@@ -15,7 +15,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 28395, %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
@@ -44,7 +44,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 9073, %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
@@ -73,7 +73,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 21956, %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
@@ -102,7 +102,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 16782, %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
@@ -131,7 +131,7 @@
 for.body:                                         ; preds = %for.body.lr.ph, %for.body
   %i.04 = phi i32 [ 19097, %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
@@ -160,7 +160,7 @@
 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
@@ -189,7 +189,7 @@
 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
@@ -218,7 +218,7 @@
 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
@@ -247,7 +247,7 @@
 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
@@ -276,7 +276,7 @@
 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
@@ -305,7 +305,7 @@
 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
@@ -334,7 +334,7 @@
 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
@@ -363,7 +363,7 @@
 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
@@ -392,7 +392,7 @@
 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
@@ -421,7 +421,7 @@
 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