On 4/1/07, David Daney <[EMAIL PROTECTED]> wrote:
I am looking at how the MIPS backend handles division. For the compiler configuration in question (mipsel-linux) division operations trap on division by zero. This is handled in mips_output_division in mips.c where we unconditionally emit a conditional trap.
Why does the back-end emit a trap for divide by zero if the hardware does not handle it? Division by zero is undefined by the C/C++ standard so maybe you should just add an option to the MIPS back-end not to emit the trap. I Know on PPC, we don't emit a trap for division by zero and the hardware does not trap either. Thanks, Andrew Pinski
