https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103762
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |https://gcc.gnu.org/piperma
| |il/gcc-patches/2021-Decembe
| |r/587164.html
Component|rtl-optimization |target
Keywords| |patch
Status|REOPENED |NEW
--- Comment #11 from H.J. Lu <hjl.tools at gmail dot com> ---
This is a latent bug on ix86. Many integer patterns has the 'm' constraint
on x86_64_general_operand which different from general_operand for 64-bit
target. As the result, LRA may pick a memory operand which satisfies
general_operand, doesn't satisfies x86_64_general_operand.
A patch is posted at
https://gcc.gnu.org/pipermail/gcc-patches/2021-December/587164.html
