llvm-project/clang/test/CodeGen/2003-11-08-PointerSubNotGet...

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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;
}