[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/Transforms/LoopVectorize/same-base-access.ll b/llvm/test/Transforms/LoopVectorize/same-base-access.ll
index fe94dd1..31cff0e 100644
--- a/llvm/test/Transforms/LoopVectorize/same-base-access.ll
+++ b/llvm/test/Transforms/LoopVectorize/same-base-access.ll
@@ -26,33 +26,33 @@
   br label %4
 
 ; <label>:4                                       ; preds = %25, %0
-  %5 = load i32* %k, align 4
-  %6 = load i32* %3, align 4
+  %5 = load i32, i32* %k, align 4
+  %6 = load i32, i32* %3, align 4
   %7 = icmp slt i32 %5, %6
   br i1 %7, label %8, label %28
 
 ; <label>:8                                       ; preds = %4
-  %9 = load i32* %k, align 4
+  %9 = load i32, i32* %k, align 4
   %10 = sub nsw i32 %9, 1
   %11 = sext i32 %10 to i64
-  %12 = load double** %1, align 8
+  %12 = load double*, double** %1, align 8
   %13 = getelementptr inbounds double, double* %12, i64 %11
-  %14 = load double* %13, align 8
-  %15 = load i32* %k, align 4
+  %14 = load double, double* %13, align 8
+  %15 = load i32, i32* %k, align 4
   %16 = sext i32 %15 to i64
-  %17 = load double** %2, align 8
+  %17 = load double*, double** %2, align 8
   %18 = getelementptr inbounds double, double* %17, i64 %16
-  %19 = load double* %18, align 8
+  %19 = load double, double* %18, align 8
   %20 = fadd double %14, %19
-  %21 = load i32* %k, align 4
+  %21 = load i32, i32* %k, align 4
   %22 = sext i32 %21 to i64
-  %23 = load double** %1, align 8
+  %23 = load double*, double** %1, align 8
   %24 = getelementptr inbounds double, double* %23, i64 %22
   store double %20, double* %24, align 8
   br label %25
 
 ; <label>:25                                      ; preds = %8
-  %26 = load i32* %k, align 4
+  %26 = load i32, i32* %k, align 4
   %27 = add nsw i32 %26, 1
   store i32 %27, i32* %k, align 4
   br label %4
@@ -87,7 +87,7 @@
   %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %7 ]
   %2 = mul nsw i64 %indvars.iv, 7
   %3 = getelementptr inbounds i32, i32* %a, i64 %2
-  %4 = load i32* %3, align 4
+  %4 = load i32, i32* %3, align 4
   %5 = icmp sgt i32 %4, 3
   br i1 %5, label %6, label %7