[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:])

llvm-svn: 232184
diff --git a/llvm/test/CodeGen/ARM/optselect-regclass.ll b/llvm/test/CodeGen/ARM/optselect-regclass.ll
index 5935a4f..f921127 100644
--- a/llvm/test/CodeGen/ARM/optselect-regclass.ll
+++ b/llvm/test/CodeGen/ARM/optselect-regclass.ll
@@ -9,7 +9,7 @@
 ; Function Attrs: nounwind ssp
 define void @xfr() {
 entry:
-  %bf.load4 = load i32, i32* getelementptr inbounds (%union.opcode.0.2.5.8.15.28* @opcode, i32 0, i32 0), align 4
+  %bf.load4 = load i32, i32* getelementptr inbounds (%union.opcode.0.2.5.8.15.28, %union.opcode.0.2.5.8.15.28* @opcode, i32 0, i32 0), align 4
   %bf.clear10 = and i32 %bf.load4, 65535
   %and11 = and i32 %bf.load4, 32768
   %tobool12 = icmp ne i32 %and11, 0
@@ -17,7 +17,7 @@
   %or = or i32 %cond13, %bf.clear10
   %shl = shl nuw i32 %or, 2
   %add = add i32 0, %shl
-  tail call void (i8*, i32, i32, i8*, ...)* @__sprintf_chk(i8* getelementptr inbounds ([50 x i8]* @operands, i32 0, i32 0), i32 0, i32 50, i8* getelementptr inbounds ([13 x i8]* @.str86, i32 0, i32 0), i32 undef, i32 undef, i32 %add)
+  tail call void (i8*, i32, i32, i8*, ...)* @__sprintf_chk(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @operands, i32 0, i32 0), i32 0, i32 50, i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str86, i32 0, i32 0), i32 undef, i32 undef, i32 %add)
   ret void
 }