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2010 Jan 20
0
[LLVMdev] [LLVMDev] Is there any way to eliminate zero-extension instruction?
On 20 Jan 2010, at 07:55, minwook Ahn wrote: > Dear developers. > > We try to make our own backend of llvm for our target machine. > > Assume that we have the following code in our source code. > > int i = ( a < b ); > > The code is translated into > > r0 <- gt r1 r2 > r3 <- and r0 0x1 > > We think that r3 is not necessary. Is there any way
2010 Jan 20
2
[LLVMdev] [LLVMDev] Is there any way to eliminate zero-extension instruction?
Dear developers. We try to make our own backend of llvm for our target machine. Assume that we have the following code in our source code. int i = ( a < b ); The code is translated into r0 <- gt r1 r2 r3 <- and r0 0x1 We think that r3 is not necessary. Is there any way to eliminate it by just modifying our backend? Thank you in advance. Minwook Ahn -------------- next part