Re: [PATCH 1/2] [x86] Add pre_reload splitter to detect fp min/max pattern.

On Thu, Jul 6, 2023 at 3:20 AM liuhongt wrote: > > We have ix86_expand_sse_fp_minmax to detect min/max sematics, but > it requires rtx_equal_p for cmp_op0/cmp_op1 and if_true/if_false, for > the testcase in the PR, there's an extra move from cmp_op0 to if_true, > and it failed ix86_expand_sse_fp_m

[PATCH 1/2] [x86] Add pre_reload splitter to detect fp min/max pattern.

We have ix86_expand_sse_fp_minmax to detect min/max sematics, but it requires rtx_equal_p for cmp_op0/cmp_op1 and if_true/if_false, for the testcase in the PR, there's an extra move from cmp_op0 to if_true, and it failed ix86_expand_sse_fp_minmax. This patch adds pre_reload splitter to detect the