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...struction class provides any way to encode this > information? No, at the MI level, we can currently only encode that there is a constraint that some input operand must be the same as some output operand. For example, the PowerPC backend has a pre-increment store encoded like this: def STDUX : XForm_8<31, 181, (outs ptr_rc_nor0:$ea_res), (ins g8rc:$rS, memrr:$dst), "stdux $rS, $dst", LdStSTDU, []>, RegConstraint<"$dst.ptrreg = $ea_res">, NoEncode<"$ea_res">; } def : Pat<(pre_store i64:$rS, iPTR:$ptrreg, i...

...rovides any way to encode this >> information? > No, at the MI level, we can currently only encode that there is a constraint that some input operand must be the same as some output operand. For example, the PowerPC backend has a pre-increment store encoded like this: > > def STDUX : XForm_8<31, 181, (outs ptr_rc_nor0:$ea_res), (ins g8rc:$rS, memrr:$dst), > "stdux $rS, $dst", LdStSTDU, []>, > RegConstraint<"$dst.ptrreg = $ea_res">, NoEncode<"$ea_res">; > } > > def : Pat<(pre_stor...

Hi Hal, Our Architecture has indirect move instruction which increments the pointer implicitly and the target only has i8 type values. So the load of i16 will be converted to two i8 target loads wherein after the first load instruction, the pointer to the first i8 address will automatically increment to point to the next i8 value. So the post increment nature is in the Target. A normal

I'm trying to fix a bug in the PowerPC SPE backend that prevents a bunch of FreeBSD ports from building, including gtk20. The attached file, generated from the following C source, triggers the "Def == PreviousDef" assertion in isNopCopy(): typedef float a; typedef struct { a b, c; } complex; d(complex *e, complex *h) { double f = h->c, g = h->b; i(g); e->c = g *