[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/X86/vec-loadsingles-alignment.ll b/llvm/test/CodeGen/X86/vec-loadsingles-alignment.ll
index 6aa2adb..ad99c9f 100644
--- a/llvm/test/CodeGen/X86/vec-loadsingles-alignment.ll
+++ b/llvm/test/CodeGen/X86/vec-loadsingles-alignment.ll
@@ -10,14 +10,14 @@
 ; CHECK-LABEL: subb:
 ; CHECK:  vmovups e(%rip), %ymm
 entry:
-  %0 = load i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 7), align 4
-  %1 = load i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 6), align 8
-  %2 = load i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 5), align 4
-  %3 = load i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 4), align 16
-  %4 = load i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 3), align 4
-  %5 = load i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 2), align 8
-  %6 = load i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 1), align 4
-  %7 = load i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 0), align 16
+  %0 = load i32, i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 7), align 4
+  %1 = load i32, i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 6), align 8
+  %2 = load i32, i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 5), align 4
+  %3 = load i32, i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 4), align 16
+  %4 = load i32, i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 3), align 4
+  %5 = load i32, i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 2), align 8
+  %6 = load i32, i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 1), align 4
+  %7 = load i32, i32* getelementptr inbounds ([8 x i32]* @e, i64 0, i64 0), align 16
   %vecinit.i = insertelement <8 x i32> undef, i32 %7, i32 0
   %vecinit1.i = insertelement <8 x i32> %vecinit.i, i32 %6, i32 1
   %vecinit2.i = insertelement <8 x i32> %vecinit1.i, i32 %5, i32 2