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llvm-mirror/test/Analysis/ScalarEvolution/pr22179.ll
David Blaikie 3ea2df7c7b [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
2015-03-13 18:20:45 +00:00

29 lines
974 B
LLVM

; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s
%struct.anon = type { i8 }
%struct.S = type { i32 }
@a = common global %struct.anon zeroinitializer, align 1
@b = common global %struct.S zeroinitializer, align 4
; Function Attrs: nounwind ssp uwtable
define i32 @main() {
; CHECK-LABEL: Classifying expressions for: @main
store i8 0, i8* getelementptr inbounds (%struct.anon, %struct.anon* @a, i64 0, i32 0), align 1
br label %loop
loop:
%storemerge1 = phi i8 [ 0, %0 ], [ %inc, %loop ]
%m = load volatile i32, i32* getelementptr inbounds (%struct.S, %struct.S* @b, i64 0, i32 0), align 4
%inc = add nuw i8 %storemerge1, 1
; CHECK: %inc = add nuw i8 %storemerge1, 1
; CHECK-NEXT: --> {1,+,1}<nuw><%loop>
; CHECK-NOT: --> {1,+,1}<nuw><nsw><%loop>
%exitcond = icmp eq i8 %inc, -128
br i1 %exitcond, label %exit, label %loop
exit:
store i8 -128, i8* getelementptr inbounds (%struct.anon, %struct.anon* @a, i64 0, i32 0), align 1
ret i32 0
}