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Learn more about: Compiler Warning (Level 4) C4740
Compiler Warning (Level 4) C4740
11/04/2016
C4740
C4740
85528969-966a-44b4-8a2f-971704c64477

Compiler Warning (Level 4) C4740

flow in or out of inline asm code suppresses global optimization

When there is a jump in to or out of an asm block, global optimizations are disabled for that function.

The following sample generates C4740:

// C4740.cpp
// compile with: /O2 /W4
// processor: x86
int main() {
   __asm jmp tester
   tester:;
}