Christian Bruel <christian.br...@st.com> wrote:
> The attached patch fixes an ice while building the linux kernel. Reduced
> in the included testcase.
>
> The problem is that we are generating a movhi_reg_reg insn that accepts
> only registers as operands. Spilling a pseudo on the stack results in an
> invalid memory load/store constraints.
>
> The attached patch allows memory for reload.
> Tested with the testsuite on sh4-linux and sh-superh-gcc.
> No performance impact on a large number of benchmarks (EEMBC, CSIBe,
> spec2006, ...)
>
> Oleg, since you moved out the r,r constraints from *mohi into
> movhi_reg_reg, do you agree ?
>
> OK for trunk and 4.8 ?
OK. Updates suggested by Oleg are also fine. When you
incorporate them into the patch, please send it to the list
for the record.
Regards,
kaz
