Agree result is the same - just in a non-compliant-ey type of way. (opcodes are just my means of looking under the compiler hood to understand the compiler behaviour.) -----Original Message----- From: Jonathan Wakely [mailto:jwakely.gcc@xxxxxxxxx] Sent: Wednesday, May 28, 2014 2:30 PM To: Regan, Brian (EPC COE) Cc: Jakub Jelinek; gcc-help@xxxxxxxxxxx Subject: Re: help understanding behaviour of unsuffixed float constants On 28 May 2014 19:10, Regan, Brian (EPC COE) wrote: > (Note, at address 18000e4, objdump did not decode the SPE instruction > correctly. The opcode is the single precision less than in the ppc SPE > extension.) The C standard doesn't say anything about which opcodes an expression must be compiled to. Doesn't the single precision one give the same result for 100.f < 200.f as you would get for 100. < 200. ? If so, there is no "deviation" from the standard.
