[opaque pointer type] Add textual IR support for explicit type parameter to gep operator

Similar to gep (r230786) and load (r230794) changes.

Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.

(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)

import fileinput
import sys
import re

rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)

def conv(match):
  line = match.group(1)
  line += match.group(4)
  line += ", "
  line += match.group(2)
  return line

line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
  sys.stdout.write(line[off:match.start()])
  sys.stdout.write(conv(match))
  off = match.end()
sys.stdout.write(line[off:])

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/ObjCARC/basic.ll

@@ -2701,7 +2701,7 @@ invoke.cont:
   %3 = bitcast i8* %arrayidx19 to float*
   %tmp20 = load float, float* %3, align 4
   %conv21 = fpext float %tmp20 to double
-  %call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([33 x i8]* @.str4, i64 0, i64 0), double %conv, double %conv8, double %conv14, double %conv21)
+  %call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str4, i64 0, i64 0), double %conv, double %conv8, double %conv14, double %conv21)
   %ivar23 = load i64, i64* @"OBJC_IVAR_$_A.myZ", align 8
   %add.ptr24 = getelementptr i8, i8* %0, i64 %ivar23
   %4 = bitcast i8* %add.ptr24 to i128*
@@ -2725,14 +2725,14 @@ define i32 @"\01-[Top0 _getX]"({}* %self, i8* nocapture %_cmd) nounwind {
 invoke.cont:
   %0 = bitcast {}* %self to i8*
   %1 = tail call i8* @objc_retain(i8* %0) nounwind
-  %puts = tail call i32 @puts(i8* getelementptr inbounds ([16 x i8]* @str, i64 0, i64 0))
+  %puts = tail call i32 @puts(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @str, i64 0, i64 0))
   tail call void @objc_release(i8* %0) nounwind
   ret i32 0
 }
 
-@"\01L_OBJC_METH_VAR_NAME_" = internal global [5 x i8] c"frob\00", section "__TEXT,__cstring,cstring_literals", align 1@"\01L_OBJC_SELECTOR_REFERENCES_" = internal global i8* getelementptr inbounds ([5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i64 0, i64 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
+@"\01L_OBJC_METH_VAR_NAME_" = internal global [5 x i8] c"frob\00", section "__TEXT,__cstring,cstring_literals", align 1@"\01L_OBJC_SELECTOR_REFERENCES_" = internal global i8* getelementptr inbounds ([5 x i8], [5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i64 0, i64 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
 @"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] [i32 0, i32 16], section "__DATA, __objc_imageinfo, regular, no_dead_strip"
-@llvm.used = appending global [3 x i8*] [i8* getelementptr inbounds ([5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* bitcast (i8** @"\01L_OBJC_SELECTOR_REFERENCES_" to i8*), i8* bitcast ([2 x i32]* @"\01L_OBJC_IMAGE_INFO" to i8*)], section "llvm.metadata"
+@llvm.used = appending global [3 x i8*] [i8* getelementptr inbounds ([5 x i8], [5 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i32 0, i32 0), i8* bitcast (i8** @"\01L_OBJC_SELECTOR_REFERENCES_" to i8*), i8* bitcast ([2 x i32]* @"\01L_OBJC_IMAGE_INFO" to i8*)], section "llvm.metadata"
 
 ; A simple loop. Eliminate the retain and release inside of it!