Re: [PATCH] Make the RTL frontend set REG_NREGS correctly

On Wed, Jul 9, 2025 at 4:05 PM Richard Sandiford wrote: > > While working on a new testcase that uses the RTL frontend, > I hit a bug where a (reg ...) that spans multiple hard registers > had REG_NREGS set to 1. This caused various things to misbehave. > For example, if the (reg ...) in question

[PATCH] Make the RTL frontend set REG_NREGS correctly

While working on a new testcase that uses the RTL frontend, I hit a bug where a (reg ...) that spans multiple hard registers had REG_NREGS set to 1. This caused various things to misbehave. For example, if the (reg ...) in question was used as crtl->return_rtx, only the first register in the group