[Bug target/66925] [4.9 optimization regression] _mm_cvtsi32_si128 spilling to memory

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66925

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Andrew Pinski from comment #1)
> Some processors moving between the GPR via vmovd is slower than moving via
> memory.  So that is the reason why using -march=sandybridge or
> -march=ivybridge makes the issue go away.

You can also use -mtune=intel.