File: 2003-11-08-PointerSubNotGetelementptr.c

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llvm-toolchain-4.0 1%3A4.0.1-10~deb9u2
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// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s

char *test(char* C) {
  // CHECK: getelementptr
  return C-1;   // Should turn into a GEP
}

int *test2(int* I) {
  return I-1;
}