[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/ARM/2007-05-22-tailmerge-3.ll b/llvm/test/CodeGen/ARM/2007-05-22-tailmerge-3.ll
index 30ae723..1edaefb 100644
--- a/llvm/test/CodeGen/ARM/2007-05-22-tailmerge-3.ll
+++ b/llvm/test/CodeGen/ARM/2007-05-22-tailmerge-3.ll
@@ -29,7 +29,7 @@
 	%retval = alloca i32, align 4		; <i32*> [#uses=1]
 	store i32 %i, i32* %i_addr
 	store i32 %q, i32* %q_addr
-	%tmp = load i32* %i_addr		; <i32> [#uses=1]
+	%tmp = load i32, i32* %i_addr		; <i32> [#uses=1]
 	%tmp1 = icmp ne i32 %tmp, 0		; <i1> [#uses=1]
 	%tmp12 = zext i1 %tmp1 to i8		; <i8> [#uses=1]
 	%toBool = icmp ne i8 %tmp12, 0		; <i1> [#uses=1]
@@ -38,7 +38,7 @@
 cond_true:		; preds = %entry
 	%tmp3 = call i32 (...)* @bar( )		; <i32> [#uses=0]
 	%tmp4 = call i32 (...)* @baz( i32 5, i32 6 )		; <i32> [#uses=0]
-	%tmp7 = load i32* %q_addr		; <i32> [#uses=1]
+	%tmp7 = load i32, i32* %q_addr		; <i32> [#uses=1]
 	%tmp8 = icmp ne i32 %tmp7, 0		; <i1> [#uses=1]
 	%tmp89 = zext i1 %tmp8 to i8		; <i8> [#uses=1]
 	%toBool10 = icmp ne i8 %tmp89, 0		; <i1> [#uses=1]
@@ -47,7 +47,7 @@
 cond_false:		; preds = %entry
 	%tmp5 = call i32 (...)* @foo( )		; <i32> [#uses=0]
 	%tmp6 = call i32 (...)* @baz( i32 5, i32 6 )		; <i32> [#uses=0]
-	%tmp27 = load i32* %q_addr		; <i32> [#uses=1]
+	%tmp27 = load i32, i32* %q_addr		; <i32> [#uses=1]
 	%tmp28 = icmp ne i32 %tmp27, 0		; <i1> [#uses=1]
 	%tmp289 = zext i1 %tmp28 to i8		; <i8> [#uses=1]
 	%toBool210 = icmp ne i8 %tmp289, 0		; <i1> [#uses=1]
@@ -68,7 +68,7 @@
 	br label %return
 
 return:		; preds = %cond_next18
-	%retval20 = load i32* %retval		; <i32> [#uses=1]
+	%retval20 = load i32, i32* %retval		; <i32> [#uses=1]
 	ret i32 %retval20
 }