search for: tp56359p56377

hi all I have a question about implementing a new instruction which does this function f(x) = x + ceilf (x) .x is a single float i have already added the instruction in my backend in the .td file def SUBCEIL_S : FFR<0x11, 0x3, 16, (outs FGR32:$fd), (ins FGR32:$fs), "frac.s\t$fd, $fs", [(set (f32 FGR32:$fd), (fadd (f32 FGR32:$fs ),(f32 (ceilf FGR32:$fs))))] >; it makes

Hi, > def SUBCEIL_S : FFR<0x11, 0x3, 16, (outs FGR32:$fd), (ins FGR32:$fs), > "frac.s\t$fd, $fs", [(set (f32 FGR32:$fd), (fadd (f32 FGR32:$fs ),(f32 > (ceilf FGR32:$fs))))] >; > > it makes and install correctly but when i ll try to write code to use this > instruction there is no luck. More details (including the .ll source and *how* exactly things are

...e this attribute "readonly" so i can see if changes the generated assembly? my code is very simple int main (){ float d, d1 ; d= 12.3; d1 = d - ceilf(d); return 0; } -- View this message in context: http://llvm.1065342.n5.nabble.com/LLVMdev-Instruction-Implementation-tp56359p56377.html Sent from the LLVM - Dev mailing list archive at Nabble.com.