GCC Version 2.1 on DG Aviion, a 88100 based machine

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1 total messages Started by Surendar Chandra Tue, 04 Aug 1992 20:38

#256

Author: Surendar Chandra
Date: Tue, 04 Aug 1992 20:38

18 lines
1312 bytes

I've been trying to make gcc compile code for divisions, without generating
traps to 503. I use the option '-muse-div-instruction -mno-check-zero-division'
and it seems to work if the operands involved in the operation are variables.
However, if the operation is done for constants, it generates this trap to 
503 and ignores my options. Looking at the code in m88k.md, it looks like 
it does not process TARGET_CHECK_ZERO_DIV or TARGET_USE_DIV if op2 is 
const0_rtx. Why was this done like this? Is this part of some optimization?

Thanks for any help
surendar

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Surendar Chandra				 Office:(508) 831-5118(msg)
Home: 152, West St, #4	  Off: 145, Fuller Labs, Home  :(508) 754-5691
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      					Internet: surendar@{maxine,wpi}.wpi.edu

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